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    • 专利摘要:
    The present invention relates to a luminaire optic (10) comprising a first optic (20) which extends from a light entry area (21) to a tip (22), a second optic (30) which has an opening (31), into which the first optics (20) protrude at least with its tip (22), the second optics (30) widening away from the first optics (20) towards a light-emitting area (32) and being configured to be different from the first Coupling optics (20) coupled-out light into the opening (31) and emitting them (H) via a deflection surface (36) of the second optics (30) via the light-emitting area (32), the first optics ( 20) and the second optics (30) in the direction of an optical axis (R) of the lamp optics (10) are arranged one behind the other and movable relative to each other along the optical axis (R) in order to change a light emission characteristic of the lamp optics (10). Furthermore, the invention relates to a luminaire optics system and a luminaire with luminaire optics or luminaire optics system according to the invention.
    公开号:AT16755U1
    申请号:TGM297/2016U
    申请日:2016-11-29
    公开日:2020-07-15
    发明作者:Ebner Stephan
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    LIGHTING OPTICS
    The following invention relates to a luminaire optics for directional light emission with variable light output characteristics and a luminaire optics system comprising at least two luminaire optics according to the invention and also a luminaire with luminaire optics according to the invention or luminaire optics system according to the invention.
    Different optical elements are known from the prior art in order to provide an optical system with the lowest possible beam divergence, that is to say the smallest possible opening angle and a small amount of scattered light. Areas of application are, for example, spotlights, spots, bicycle lights, headlights and the like.
    [0003] Different attachment optics in different forms are known from the prior art, such as reflectors or TIR lenses 300 (see FIGS. 3c and 4c). Optical systems are also known in which the optical components are arranged one after the other in several stages; see. see for example DE 10 2010 039 306 A1. In the spotlight area, in addition to lenses for many applications, apertures for reducing stray light are often used as optical components. The latter, for example, in the area of projectors.
    A special form of light concentrators is also known for example from the solar field. So-called CPC concentrators (CPC = Compound Parabolic Concentrator) 200 are used there. Such is shown by way of example in FIG. 2. With reference to FIGS. 3b and 4b, it can be seen that this optics 200 has an uncontrolled direct light component 201, which makes directional light emission more difficult and leads to a comparatively high beam divergence. Furthermore, there are annoying corona-like rings or images around the central spot (area). Similar effects arise with the TIR lenses 300 described above (see FIGS. 3c and 40).
    Furthermore, a defined light output characteristic can be set in the aforementioned optics based on their geometric design and a defined light coupling by appropriate use and corresponding placement of lamps. However, the light output characteristic set in this way cannot be changed without the use of further optical elements, for example to enable a zoom effect.
    It is an object of the present invention to provide an optical system which is variable in its light emission characteristic and has a particularly low beam divergence.
    [0007] This object is achieved by the subject matter of the independent claims. The dependent claims further develop the central idea of the invention in a particularly advantageous manner.
    According to a first aspect, the invention relates to a luminaire optics. This has an optical axis. Furthermore, the luminaire optics have a first optic and a second optic. The first optic extends from a (flat) floor area or light entry area - preferably in the direction of the optical axis of the lamp optics - and runs towards a tip. The first optics preferably has a parabolic or circular arc-shaped or other curved outer contour in cross-section running from the light entry area to the tip. The first optical system is particularly preferably essentially conical. The side surfaces of the first optics connecting the light entry region to the tip are preferably of rotationally symmetrical design, that is to say the outer contour thereof, the present invention being not restricted to this. The second optic in turn has an opening into which the first optic protrudes at least with its tip. The second optic widens away from the first optic - and preferably in the direction of the optical axis of the lamp optics - to a light-emitting area (the second optic or the lamp optics). The second optical system is also designed to move from the first optical system (preferably into the
    Opening) to couple out coupled light into the opening of the second optical system and to emit it in a directed manner via a deflection surface of the second optical system via the light-emitting region from the second optical system. According to the invention, “coupling in” means that the light enters or is emitted into the corresponding optics (here the second optics). On the one hand, this includes the introduction of light into a full-body optic, but it can also mean the emission of light into a hollow optic (e.g. a reflector). The first optics and second optics, which are consequently arranged (optically) one behind the other (seen in the direction of the optical axis of the lamp optics), are designed or arranged to be movable relative to one another along the optical axis in order to change a light-emitting characteristic of the lamp optics. The change in the light emission characteristic can include any change in the same individually and in combination. In particular, zooming (= changing the opening angle a of the radiation characteristic or the coupled light beam), i.e. widening and focusing, and / or tilting and / or changing the scatter and / or color conversion of the light or beam bundle emitted via the luminaire optics to call. In other words, the aforementioned optics can be moved relative to one another in such a way that the radiation characteristic of the luminaire optics can be set by moving the optics relative to one another; for example, by tilting the main radiation direction and / or changing (widening / focusing) the opening angle of the emitted beam and the like.
    The first optics are consequently a type of aspherical beam splitter, the surface of which can preferably be described by an inclined conic section rotating about the central axis; alternatively, an arc shape or any spline geometries are also conceivable. In contrast to the known CPC concentrators, in the first optics described here the conic section, as can be seen in FIG. 1, is inclined downwards towards the axis of rotation or optical axis, so that the surface of revolution ideally tapers. In this way, preferably all light coupled into the first optics (via the light entry area) can be deflected at the side surface of the first optics connecting the light entry area to the tip; preferably by total reflection on this side surface. This deflected light is then decoupled from the first optics on the opposite surfaces - that is to say on the opposite side in each case via the side surface of the first optics - in particular in the region of its tip - and is available for coupling into the second optics so that a direct light component - speak a proportion of light that does not differ from that in figure | is shown deflected conical surface, but exits again directly in front - is avoided (see FIG. 3a and in particular FIG. 4a). In the second optics, the entire light can then be influenced or redirected in the desired manner for the directed light emission.
    Also a conventional central lens 302 in conventional TIR attachment lenses 300, as shown for example in FIGS. 3c and 4c, is omitted, as a result of which possible corona-like phenomena become significantly more controllable and at best can even be eliminated. FIGS. 3c and 4c also show the beam paths of a TIR lens 300, it being shown in FIG. 4c that the (direct) light 301 guided via the central lens can emerge in a problematic manner in an uncontrollable manner, particularly in the case of a relatively large light source for optics and thus directional light emission is difficult.
    The relative movement of the first and second optics thus formed and arranged relative to one another makes it possible to guide the beam path of the light to or over different areas of the optics - in particular the second optics - so that the light characteristic thereby differs can be varied.
    The first optics is preferably formed as a solid body and, as already described above, represents in particular a beam splitter. The corresponding light control of the first optics is shown by way of example in FIG. 3a.
    The light entry area of the first optics is used to couple light into the first optics or into the luminaire optics or the luminaire system described below.
    The focal point of the totally reflecting side surfaces is preferably in the center of the
    Light entry area. The focal point of the totally reflecting side surfaces is preferably within the first optics or outside the first optics. The focus point is particularly preferably on a rotational symmetry axis of the first optics or on the optical axis. However, it is also conceivable that it lies away from the aforementioned axes. The light distribution through the first optics works particularly well when the focal point of the totally reflecting side surfaces is in the center of the light entry surface. With corresponding parabolic outer or side surfaces, a particularly high divergence of the beam splitter (= first optics) can be achieved. However, it is also conceivable to provide flat side surfaces. As just mentioned, the first optics can have a parabolic or else an arcuate or other curved outer contour running from the light entry area to the tip. The divergence of the first optics can be varied depending on the outer contour, which can also be flat (for example, conical overall).
    The side surface of the first optics connecting the light entry area to the tip can extend in an area near the light entry area from the light entry area to the tip in a widening or cylindrical manner. In this way, it is possible to provide the first optics in a demoldable manner for manufacturing reasons. In a preferred embodiment, the widening or cylindrically extending region then forms a region for light control or optically ineffective region. The light is then to be coupled into the first optics in such a way that as little as possible no light (portion) falls on this ineffective optical area. This can be done, for example, by a defined arrangement of the light source or the illuminant, as will be described below.
    A distance is preferably provided between the tip of the first lens and the area of the second lens delimiting the opening. The light emerges from the first optics and is then guided through the opening to the second optics, where it is coupled accordingly. Thus, the light optimally or definedly divided by the first optics enters the second optics of the luminaire optics in order to be made available and redirected there for directional light emission. Since there is no direct light component, all of the light coupled into the luminaire optics can consequently preferably be deflected in a correspondingly directed manner and a particularly low beam divergence can thus be achieved. By moving the two optics relative to one another and along the optical axis, the aforementioned distance and thus also the light guidance and ultimately the light emission characteristic can be varied.
    The second stage of the luminaire optics, that is to say the second optics, is now provided in order to deflect the light “fanned out” by the beam splitter into the desired direction. In the simplest case, classic reflectors are suitable as a second stage in order to redirectly deflect the light coupled out by the first optics. TIR optics or other optics are also conceivable, for example, for more demanding tasks.
    The second optics can consequently also be designed as a solid body, this solid body can be correspondingly connected to a reflector in order to be available in combination with one another for the deflection of the light coupled into the second optic.
    As already mentioned, the second optic is designed to couple light coupled out of the first optic into the opening. Fundamentally, it is also conceivable to couple part of the light outside the opening, but with a corresponding coupling in of all the light, a particularly efficient light yield is achieved via the opening.
    The second optical system is preferably designed to deflect the light by means of reflection or total reflection for directional light output from the second optical system. The deflection surface of the second optic serves this purpose. A reflection is especially present when using a normal reflector. The deflection surface is then generally formed by the reflective inner surface or inner wall of the reflector. When using appropriate optics, as will be described below (for example TIR optics), a light deflection by means of total reflection is also conceivable and even preferred. The deflection surface is then formed by the outer side surface or contour of the second optic, which is generally designed as a solid body.
    [0021] In a preferred embodiment, the light-emitting area also forms the decoupling surface of the lamp optics. The most compact design possible can thus be achieved.
    As described above, the second optical system has a shape that extends from the first optical system or a side having the opening that receives the first optical system away from the first optical system and that widens in the direction of the optical axis toward the light-emitting region. Such a shape is shown for example in FIG. 6. The second lens then preferably essentially forms a frusto-conical shape which is opposite to the first lens and which, in its side facing away from the first lens, preferably has the light-emitting region which runs toward the first lens towards a flat end region. In the context of the invention, “flat” generally means that a corresponding geometrical surface can be stretched on a corresponding side at least between the delimiting edge regions thereof, even if the said side has an opening or the like.
    [0023] The forehead region can have the opening that at least partially accommodates the first optics. The second optical system preferably has a light coupling area that delimits the opening, via which light coupled out from the first optical system is coupled into the second optical system. The opening or its light coupling area can preferably run towards the light emission area (for example, be conical or conical) or cylindrical. Other configurations (parabolic or circular arc and the like) are also conceivable. According to one embodiment, the opening can preferably be formed continuously through the second optical system; that is, as a through opening with an arbitrarily defined and at least partially contour forming light coupling area.
    [0024] The light-emitting area of the second optic can furthermore have a recess, preferably a central recess, which is particularly preferably provided in an area which is not effective for the light-emitting. This cutout on the light exit side of the luminaire optics or second optics preferably serves to optimize the volume, so that the optics can be better manufactured using an injection molding process and ultimately manufacturing costs can be saved and weight can be reduced. The recess is particularly preferably formed integrally with the opening and thus represents the aforementioned through-opening. However, the geometry of the second optic can also be used for renewed internal total reflection. The second lens can also be followed by a further lens. However, it is primarily used for decoupling from the luminaire optics.
    The opening or the light coupling area delimiting the opening of the second optics is preferably formed larger, seen in the direction of the optical axis, than the decoupling area of the first optics and in particular as a beam which is decoupled from the first optics and impinges on the light coupling area. The opening or the light coupling region of the second optical system delimiting the opening is particularly preferably at least one and a half times larger, particularly preferably at least twice as large. In this way it can be ensured that even with optics moved relative to one another, all of the light passes from the first optics into the second optics in order to be coupled out by the latter. In particular, this prevents stray light and maximizes the effectiveness of the luminaire optics.
    The deflecting surface is preferably a surface which laterally delimits the second optic with respect to the optical axis in order to optically influence the light coupled into the second optic and in particular to deflect it towards the light-emitting region. The second optics can thus be made very compact and effective at the same time.
    The opening or the light coupling area and / or the deflecting surface and / or the light coupling area preferably has / have a structured and / or contoured surface for influencing the light. This enables a defined light influence over the entire range of motion of the optics.
    [0028] The light coupling area (or the opening) preferably runs in the direction of the optical one
    Seen axis not constant, for example parabolic or discontinuous. In the same way, additionally or alternatively, the deflecting surface cannot widen constantly, for example parabolic or discontinuous, when viewed in the direction of the optical axis. This provides a defined and variable optical influence on the light - that is, a change in the light emission characteristic - over the entire range of motion of the two optics.
    The light-emitting area can extend at least partially in one plane, preferably perpendicular to the optical axis. Alternatively or additionally, the light emission area can be at least partially inclined with respect to the plane. Alternatively or additionally, the light-emitting area can run at least partially continuously or discontinuously towards the optical axis and preferably also towards the first optics. In this way, areas of different optical influences are also provided over the light-emitting area, in order to enable different light-emitting characteristics depending on the relative position of the optics.
    The light coupling area or the opening having this and / or the deflecting surface and / or the light emitting area can have continuously or gradually merging areas of different optical influences. The light emission characteristic can thus be changed depending on the relative position of the optics. In addition, if the areas of different optical influences are provided in the circumferential direction around the optical axis, a defined asymmetrical light emission can also be made possible.
    [0031] According to a further aspect, the invention also relates to a luminaire optics system which has at least two luminaire optics according to the invention with a first group of first optics and a second group of second optics. The groups of first optics and the groups of second optics are designed to be movable relative to one another along the respective optical axes - preferably each of a pair of first and second optics - in order to change a light output characteristic of the luminaire optics system. The simple system, each with a first and a second optic, can thus also be expanded to a system comprising a plurality of luminaire optics for a desired light emission.
    [0032] The first optics of the first group and / or the second optics of the second group can each be connected to one another by means of connecting elements.
    The two groups can thus be provided in a simple manner and moved relative to one another in a desired defined manner in order to form the adjustable luminaire optics system.
    [0034] In particular, the optical axes of the lamp optics can be aligned parallel to one another in order to bring about a similar change in the light emission characteristics of the respective lamp optics.
    The connecting elements can furthermore have guide elements in order to move several connecting elements in a guided manner relative to one another. This is particularly the case in that a defined movement of the first (group of) optics with the second (group of optics) optics is provided for the desired, specifically variable, directed light emission.
    It is particularly preferred that the connecting elements and optionally also the guide elements are integrally formed with the respective (groups of) optics.
    [0037] According to a further aspect, the invention further relates to a luminaire which has a luminaire optics or a luminaire optics system according to the present invention. Furthermore, a corresponding luminaire has at least one illuminant for coupling light into the first optics or the luminaire optics or the luminaire optics system. The
    The illuminant is preferably an LED or OLED.
    [0038] The illuminant can preferably be provided at a distance from the first optics, in particular the light entry region of the first optics. In this way, for example if there is an air gap between the illuminant and the first optic, the first refraction of the light can take place as soon as the light emerges from the illuminant, so that the light just does not reach the area in the foot or area that is ineffective for the optic to steer the bottom of the beam splitter / cone. The light can thus be directed in a targeted manner to the effective area on the aforementioned side surfaces of the first optics, at which point all the light that is emitted by the illuminant can then preferably be totally reflected, as has already been described above.
    Further advantages, embodiments and exemplary embodiments are described below with reference to the figures of the accompanying drawings. Show it:
    [0040] FIG. 1 shows a first optical system according to a first exemplary embodiment of the present invention,
    FIG. 2 shows a CPC concentrator according to the prior art,
    3 shows the light control of the optical systems according to a first optic according to a second embodiment of the invention (FIG. 3a), a known CPC concentrator (FIG. 3b) and a known TIR lens (FIG. 30),
    4 shows the light control of uncontrolled light from the optical systems according to the first optics from FIG. 3a (FIG. 4a), the known CPC concentrator from FIG. 3b (FIG. 4b) and the known TIR lens from FIG. 3c (FIG. 40),
    [0044] FIG. 5 the first optics according to the invention according to FIG. 3a with illuminant in the focus point shown and the associated light control,
    [0045] FIG. 6 shows a first optical system according to a second exemplary embodiment of the invention with illuminant in the focal point shown and the associated light control,
    7 shows three embodiments of a second optical system according to the invention,
    8 shows a luminaire according to the invention with luminaire optics according to the invention with first optics according to FIG. 6 and second optics according to a fourth embodiment of the invention,
    9 shows a luminaire according to the invention with luminaire optics according to the invention with first optics according to FIG. 6 and second optics according to a fifth embodiment of the invention in two positions relative to one another in order to achieve different emission characteristics (tilting of the main emission direction),
    Figure 10 shows a luminaire according to the invention with luminaire optics according to the invention with first optics according to Figure 6 and second optics according to a sixth embodiment of the invention in two relative positions to each other to achieve different radiation characteristics (pointing / focusing the beam), and
    FIG. 11 shows a luminaire optics system according to an exemplary embodiment of the present invention.
    Figures 8 to 10 show different embodiments of a lamp | according to the present invention. The lamp 1 has a lamp optics 10 according to the present invention. Furthermore, the lamp 1 according to the invention has a lamp 2 for coupling light into the lamp optics 10. The illuminant 2 can preferably be an LED or an OLED, the invention being not restricted to this.
    The lamp optics 10 have a first optics 20 and a second optics 30, which are described in more detail below.
    The first optics 20 is shown, for example, in Figures 1, 5 and 6 in different embodiments. The first optics 20 extends from a flat light entry region 21 towards a tip 22; this is preferred in the direction of an optical axis R of the luminaire optics, as is shown, for example, in FIG. 8. The first optics 20 also has the light entry region 21 with the side surface 23 connecting the tip 22. As can be seen in FIGS. 1, 5 and 6, the side surface 23 is preferably rotationally symmetrical. As shown, the first optics 20 have an essentially conical shape for this purpose. Other shapes are also conceivable, for example linear, rectangular, square or polygonal shapes, the rotationally symmetrical shape being preferred in order to achieve a particularly low beam divergence of the luminaire optics 10.
    The first optics 20 can preferably have a parabolic or arcuate or other curved outer contour in cross section, extending from the light entry region 21 to the tip 22; thus an essentially convex outer contour. A parabolic outer contour is shown. Ultimately, this also describes the side surface 23 connecting the light entry region 21 to the tip 22.
    The first optics 20 is preferably designed as a solid body. Ideally, it forms a beam splitter, with which preferably all light that is coupled into the luminaire optics 10 is divided or “fanned out” accordingly, so that preferably no direct light passes through the first optics 20 and then leaves the luminaire optics 10 directly.
    The light entry area 21 of the first optics 20 is preferably used to couple light into the lighting system or the light optics 10. The side surface 23 is preferably designed such that preferably everything is coupled into the light via the light entry area 21 of the first optics 20 Side surface 23 is totally reflected. This preferably means that the totally reflected light on the opposite side 23 is coupled out of the first optics 20 via the side surface 23; in particular in the area of the tip 22 of the first optics 20. This is particularly preferably shown in FIGS. 5 and 6 and also results from FIGS. 9 and 10. As can be seen from FIGS. 5 and 6, the focal point F lies on the totally reflecting side surface 23 preferably in the center of the light entry area 21; particularly preferred for the above-described coupling of light into the lighting system. This, preferably in combination with a parabolic outer contour of the side surface 23, leads to a particularly effective beam splitting of the entire light coupled into the first optics 20, as is shown in simplified form in FIGS. 5 and 6 for the right light portion. The focal point F of the totally reflecting side surface 23 can be inside or outside the first optics 20. 5 and 6, it can also lie on an optical axis (here also longitudinal axis, central axis or rotational symmetry axis) R1 of the first optics 20 or R of the lamp optics 10 or also away from this axis R1. This can be varied depending on the desired light output.
    According to a particularly preferred embodiment, the illuminant 2 can be provided at a distance from the first optics 20; in particular from the light entry area 21 of the first optics 20. This is particularly advantageous because in this way a first light refraction of the light occurs after exiting the illuminant 2, in order to thus refract the light in a defined manner before it is coupled into the light optics 10. This is particularly advantageous if the side face 23 of the first optics 20 connecting the light entry area 21 to the tip 22 extends in an area 24 near the light entry area 21 from the light entry area 21 to the tip 22 in a widening or cylindrical manner. This can be seen by way of example in FIGS. 1 and 5. Such a configuration in the foot region of the conical first optics 20 shown here is provided, in particular for procedural reasons, in order to enable the optics 20 to be easily removed from the mold during its manufacture. This region 24 preferably represents an optically ineffective region which, because of its geometric configuration, is not suitable for a desired defined light control and should therefore be avoided as far as possible.
    In this respect, a light control offers itself which directs the light from these areas
    24 keeps away. In this respect, a spacing of a lamp 2 from the first optics 20 with an air gap preferably in between is conceivable in order to achieve a corresponding refraction of the light emanating from the lamp 2, in order to avoid the ineffective optical region 24 in the beam guidance. This preferred beam guidance can be clearly seen in FIGS. 3a and 5. The optically ineffective region 24 can also be designed differently and in particular with a defined contour, as shown in the embodiments of FIGS. 6 and 8 to 10. Using a correspondingly selected contour 24, the handling or fixing of the second optics 20 can be simplified in the desired manner.
    Returning to FIGS. 8 to 10, the light 1 or the light optics 10 shown also has the second optics 30. This optics 30 has an opening 31 into which the first optics 20 protrude at least with its tip 22. Between the tip 22 of the first optics 20 (more precisely the area 25 of the first optics 20 protruding into the opening 31, which at the same time preferably defines the decoupling area 25 of the first optics 20) and the area delimiting the opening 31 (light coupling area 310) of the second optics 30 a distance or gap is preferably provided in order to enable a defined and targeted light guidance or light control. As described further below, this gap is preferably designed to be variable by relative movement of the optics 20, 30 in order to influence / change the light emission characteristic of the luminaire optics 10 accordingly.
    Possible embodiments of the second optics 30 according to the invention are shown, for example, in FIGS. 7 to 10. Thereafter, the second optical system 30 preferably widens away from the first optical system 20 - that is to say from the side having the first optical system 20 receiving opening 31 - and particularly preferably in the direction of the optical axis R of the lamp optical system 10 to a light-emitting region 32 of the second optical system 30 or the light optics 10 out. The second optics 30 can consequently have a frusto-conical shape that is reversed to the first optics 20. On its side facing away from the first optics 20, the latter can have the (flat) light-emitting region 32, which preferably runs towards the first optics 20 towards a flat end region 33. The flat end region 33 can form the entry into the opening 31 or the light coupling region 310. In particular, the end region 33 has the opening 31 that at least partially accommodates the first optics 20. This then extends from the front area 33 to the bottom area 32 as a light coupling area 310. The shape of the opening 31 is preferably optically and preferably also geometrically adapted to the shape of the first optics 20 - at least to the part 25 to be accommodated in the first optics 20 . The opening 31, which at least partially accommodates the first optics 20 or the light coupling region 310 delimiting it, can be cylindrical (cf. FIG. 7a) or also conical or conical (cf. FIGS. 7b, 7c and 8 to 10); the latter preferably in such a way that opening 31 or light coupling area 310 preferably run towards light emitting area 32. Other designs are also conceivable.
    The second optics 30 is designed in such a way to couple light decoupled from the first optics 20 into the opening 31 - in particular via the light coupling area 310 in the case of a full body optics - and to deflect the second optics 30 accordingly via a deflection surface 36 in order to deflect the in to emit the second optics 30 coupled light directed from the second optics 30 via the light emission area 32, as can be seen in FIGS. 9 and 10. The deflection surface 36 is consequently preferably a surface which laterally delimits the second optics 30 with respect to the optical axis R of the lamp optics 10 or, in particular, its own optical axis R2, in order to optically influence the light coupled into the second optics 30 and in particular towards the light emission region 32 redirect. The combination of the two optics 20, 30 according to the invention thus essentially leads to the elimination of an uncontrolled light (portion), as is known, for example, from CPC concentrators (cf. FIG. 4b) or TIR optics (cf. FIG. 4c). The light that is preferably completely split or fanned out via the first optics 20 in the form of a beam splitter can thus preferably be completely collected and directed in a targeted manner via the second optics 30. By avoiding direct light components and the defined light control of the preferably entire light component, the two-stage system enables a particularly low beam divergence.
    The second optical system 30, like the first optical system 20, can be designed as a solid body.
    The deflection to the directional light output from the second optics 30 is preferably achieved in that the second optics 30 - in particular their deflection surface 36 - enables a corresponding directed light emission of the light coupled into this optics 30 by means of total reflection. This can be seen, for example, from the light control, as shown in FIGS. 9 and 10.
    As shown in FIGS. 7a, 9 and 10, the opening 31 can preferably be formed continuously through the second optics 30. The decisive factor here is that the structural features of the second optics 30 are retained in such a way that the light emitted by the first optics 20 is received accordingly (that is, coupled in) and then, if possible, redirected all the light in a defined manner and preferably emitted in a directed manner.
    As can be seen in FIGS. 9 and 10, the (flat) light-emitting area 32 of the second optics 30 preferably simultaneously forms the decoupling surface of the luminaire optics 10. According to a preferred embodiment, as shown, for example, in FIGS. 7a, 7c, 9 and 10 the light emission area 32 of the second optics 30 has a recess 34. This is preferably a central recess 34, which is thus arranged centrally or coaxially with respect to the optical axis (here also a longitudinal axis, central axis or rotational symmetry axis) R2 of the second optics 30 or R of the lamp optics 10. This recess 34 is used in particular to optimize the volume of the second optics 30 and is therefore preferably provided in an area 35 of the second optics 30 which is not effective for the light emission. This can also be clearly seen, for example, in FIGS. 9 and 10, according to which the recess 34 lies outside the beam guidance of the lamp optics 10.
    The optical axes R1 and R2 of the first and second optics 20, 30 are preferably provided coaxially and are congruent with a corresponding optical axis R of the lamp optics 10.
    In a particularly simple embodiment, not shown here, it is also conceivable that the second optic is designed as a simple reflector, which can have essentially the same shape or external contour as the second optic 30 shown. In particular, the shape of a corresponding reflector should be designed in such a way that the light decoupled from the first optics 20 can be deflected in a desired manner via its deflection surface - preferably its reflective inner wall - in order to enable a particularly directed light emission with a low beam divergence. In this case, the coupling into the opening 31 of such a reflector - that is to say the light coupling region - coincides with the coupling out of the light from the first optics 20 and then corresponds to the light emission in the opening or the opening of the reflector.
    A combination of reflector and solid material as second optics 30 is also conceivable, for example by providing the second optics 30 with a reflector or reflector material on its outer side surfaces (here the deflection surfaces 36) to increase the efficiency.
    The first optics 20 and the second optics 30 are arranged in the direction of the optical axis R of the lamp optics 10 one behind the other and are movable relative to each other along the optical axis R - and preferably simultaneously in the direction of their own optical axes R1, R2 to change a light output characteristic of the lamp optics 10. The change in the light emission characteristic can represent one of the following individually or in combination: zooming (see e.g. FIG. 10), i.e. widening and focusing, and / or tilting (see e.g. FIG. 9) and / or changing one Scattering and / or color conversion of the light emitted via the luminaire optics 10 - and here in particular via the second optics 30, more precisely the light emitting area 32.
    In order to be able to bring about the longest possible adjustment path and a sufficiently large change in the light emission characteristic of the luminaire 1, the opening 31 or the light coupling region 310 of the second optics 30 bounding the opening 31 is in the direction of FIG
    seen optical axis R of the lamp optics 10 is larger than a decoupling area 25 of the first optics 20 and in particular as a beam S1 coupled out of the first optics 20 and incident on the light coupling area 310, preferably at least one and a half times as large, particularly preferably at least twice as large big.
    The opening 31 or the light coupling region 310 and / or the deflecting surface 36 and / or the light emission region 32 preferably has a structured and / or contoured surface for influencing the light. As an alternative or in addition, the opening 31 or the light coupling region 310 delimiting it cannot run in a constant manner, for example parabolic or discontinuous, in the direction of the optical axis R of the lamp optics 10.
    This can be seen in FIGS. 8 to 10, according to which the opening 31 or the light coupling region 310 runs downwards in a funnel shape. Thus, with relative movement of the optics 20, 30 along the optical axis R, the beam bundle S1 decoupled from the first optics 20, depending on the relative position of the optics 20, 30, meet differently inclined regions of the light coupling region 310, so that the beam guidance can be changed . Alternatively or additionally, the deflection surface 36 cannot widen in a constant manner, for example parabolic or discontinuous, when viewed in the direction of the optical axis R of the lamp optics 10 or second optics 30. In the embodiments of FIGS. 9 and 10, the deflection surface 36 has, for example, a slightly curved or convex shape.
    [0073] Thus, depending on where the beam bundle coupled into the second optics 30 strikes S2 on the deflection surface 36, this can be deflected differently.
    The light-emitting region 32 preferably extends at least partially in one plane, preferably perpendicular to the optical axis R of the lamp optics 10, as shown in FIG. 8. However, it is also conceivable that the light-emitting region 32 is inclined or inclined with respect to the plane. It is also conceivable for the light-emitting region 32 to run continuously or discontinuously to the optical axis R (see FIG. 10) and optionally to the first optics 20 (see FIG. 9). Thus, depending on where the beam bundle S3 deflected by the deflecting surface 36 of the second optical system 30 strikes the light-emitting region 32, the light-emitting region 32 can be deflected differently — in particular, decoupled here.
    The areas serving in particular the variable light emission characteristic, that is to say in particular the light coupling area 310 (or the opening 31) and / or the deflecting surface 36 and / or the light emission area 32, can have continuously or step-wise merging areas of different optical influences. The same also applies to the light decoupling area 25 of the first optic 20 projecting into the opening of the second optic 30. These can result, for example, from different angles of incidence as an inclination with respect to the incident light bundle S1, S2, S3 - or correspondingly defined structure or contour . The aforementioned transition of the areas of different optical influences 25, 31, 310, 36, 32 can result, for example, seen in the radial direction, that is, along the surface, so that, for example, ring-shaped areas of different optical influences merge into one another. Alternatively or additionally, it is also conceivable that the areas of different optical influences 25, 31, 310, 36, 32 are provided in the circumferential direction around the optical axis R; Areas of different optical influences 25, 31, 310, 36, 32, as seen in the circumferential direction, therefore merge into one another, for example to enable a defined asymmetrical light emission.
    Overall, a defined configuration of the areas of optical influence 25, 31, 310, 36, 32 of the optics 20, 30, in particular the second optics 30, can achieve a light emission characteristic that is variable over a defined and preferably large area. It is irrelevant whether the relative movement of the optics 20, 30 to one another results from a movement of the first optics 20 (with the second optics 30 fixed in position), the second optics 30 (with the first optics 20 fixed in position) or both optics 20, 30. The first optics 20 are preferably fixed and the second optics 30 relative to them - in particular along the optics
    Axis R - movable, as shown in Figure 8 by arrow P1.
    FIG. 8 shows a luminaire optic 10 or luminaire 1 according to the invention with a parabolic first optic 20 as a full body, as is also shown in FIG. 6. Their light decoupling area 25 projects into an opening 31 of a second optic 30 designed as a solid body. The opening 31 or its light coupling area 310 has a conical shape in cross section, so that - depending on the position of the optics 20, 30 along the optical axis R seen - the light with respect to the optical axis R is coupled into the second optics 30 via differently inclined surfaces of the light coupling region 310 and is thus directed differently. The light or light bundle coupled into the second optics 30 can thus preferably be directed to different areas of the deflection surface 36 when the position of the optics 20, 30 relative to one another. The deflecting surface 36 of the second optics 30 in turn forms a cone with a slightly curved — that is, not continuous — widening, as shown in FIG. 8 in cross section. Thus, there is also a different direction of the light in the second optics 30 across the surface, as seen in the direction of the optical axis R, in order to preferably meet different areas of the light-emitting area 32 for coupling out the light. The light-emitting area 32 is flat according to FIG. 8; thus extends in a plane orthogonal to the optical axis R. Both the light-emitting area 32 and the other areas with different optical influences 25, 31, 310, 36 can also have defined structured and / or contoured areas in the radial and / or in the circumferential direction.
    FIG. 9 shows a luminaire optic 10 or luminaire 1 according to the invention with the same first optic 20 as in FIG. 8 or 6. Its light decoupling region 25 projects into an opening 31 of a second optic 30 designed as a solid body. The opening 31 or its opening Seen in cross section, light coupling area 310 has a funnel shape, so that - depending on the position of the optics 20, 30 along the optical axis R - the light with respect to the optical axis R is coupled into the second optics 30 via differently inclined surfaces of the light coupling area 310 and is thus steered differently. The light or light bundle coupled into the second optics 30 can thus preferably be directed to different areas of the deflection surface 36 when the position of the optics 20, 30 relative to one another. The deflection surface 36 of the second optics 30 in turn forms a cone in cross section with a (slightly) convex - that is to say curved out - surface. Thus, there is also a differently directed deflection of the light in the second optics 30 over the surface 36, as seen in the direction of the optical axis R, in order to preferably meet different areas of the light-emitting area 32 for coupling out the light. According to FIG. 9, the light emission area 32 is curved from the outer edge to the optical axis R and runs towards the first optics 20. Both the light-emitting area 32 and the other areas of different optical influence 25, 31, 310, 36 can also have defined structured and / or contoured areas in the radial and / or in the circumferential direction. The light-emitting area 32 has a recess 34 as an optically ineffective area 35, which is formed here continuously with the opening 31. This configuration of the areas 31, 310, 36, 32 of optical influencing, in particular of the second optics 30, allows, for example, by targeted deposition of the optics (steps 20, 30 relative to one another, the radiation characteristic can be set in such a way that the main emission direction or the corresponding light beam H is tilted with respect to the optical axis R. As the distance between the two optics 20, 30 increases (see movement P2 of the second lens 30), the main emission direction H is tilted outwards P20 (see FIG. 9a) of the two optics 20, 30 relative to one another (cf. movement P3 of the second optics 30), the main emission direction H tilts P30 inwards (cf. FIG. 9a).
    FIG. 10 shows a luminaire optic 10 or luminaire 1 according to the invention with the same first optic 20 as in FIGS. 6, 8 and 9. Its light decoupling region 25 projects into an opening 31 in a second optic 30 designed as a solid body. The opening 31 or whose light coupling area 310 has - comparable to the embodiment according to FIG. 9 - a funnel shape in cross section, so that - depending on the position of the optics 20, 30 along the optic
    seen axis R - the light with respect to the optical axis R is coupled into the second optics 30 via surfaces of the light coupling region 310 that are inclined differently and is thus directed differently. The light or light bundle coupled into the second optics 30 can thus preferably be directed to different areas of the deflection surface 36 when the position of the optics 20, 30 relative to one another. The deflection surface 36 of the second optics 30 in turn forms a cone with a continuously widening surface 36 according to FIG. 10 in cross section; a truncated cone. Thus, a differently directed redirection of the light takes place in the second optical system 30 via the deflection surface 36, as viewed in the direction of the optical axis R, in order to preferably meet different regions of the light emission region 32 for coupling out light. According to FIG. 10, the light-emitting area 32 is curved essentially concavely. Both the light-emitting area and the other areas with different optical influences 25, 31, 310, 36 can also have defined structured and / or contoured areas in the radial and / or in the circumferential direction. The light-emitting region 32 has a recess 34 as an optically ineffective region 35, which here is formed continuously with the opening 31. This configuration of the areas 25, 31, 103, 36, 32 of optical influencing, in particular of the second optics 30, makes it possible, for example, to selectively position the optics (stage) 20, 30 relative to one another in such a way that the beam angle a of the main emission direction can be set or the corresponding light beam H influenced - that is changed - is. As the distance between the two optics 20, 30 increases (cf. movement P4 of the second optics 30), the beam H or its opening angle a is widened P40 (cf. FIG. 10a). Consequently, as the distance between the two optics 20, 30 decreases (cf. movement P5 of the second optics 30), the beam H or its aperture angle a is focused P50 (cf. FIG. 10a).
    Of course, configurations of the luminaire optics 10 or luminaire 1 according to the invention are also conceivable, which form any combination of the aforementioned geometric configuration of the areas of optical influence 25, 31, 310, 36, 32. For example, a luminaire optic 10 or luminaire 1 can also be provided which enables both tilting and influencing the opening angle a of the light beam H.
    A further embodiment is shown in FIG. 11, which represents a luminaire optics system 100 according to the invention. Such a lighting optics system 100 preferably has at least two lighting optics 10 according to the present invention. For this purpose, the luminaire optics system 100 has a first group of first optics 20 and a second group of second optics 30. The group of first optics 20 and the group of second optics (30) are designed to be movable relative to one another along the respective optical axes R (R1, R2) in order to change a light emission characteristic of the luminaire optics system 100.
    In this case, the first optics 20 of the first group and / or the second optics 30 of the second group are preferably connected to one another by means of connecting elements 101, 102. As shown in FIG. 11, these connecting elements 101, 102 are preferably designed as plate-like elements which carry the respective optics 20, 30. Other configurations are of course also conceivable. As shown in FIG. 11, at least two such connecting elements 101, 102 can preferably be provided, in which case a first connecting element 101 carries the group of first optics 20 and a second connecting element 102 carries the group of second optics 30.
    The connecting elements 101, 102 can furthermore have guide elements 103, 104 in order to move a plurality of connecting elements 101, 102 - and thus the (groups of) optics 20, 30 connected to them in a guided manner relative to one another. By means of these guide elements 103, 104 it can thus be made possible to enable a defined guidance of the two connecting elements 101, 102 or (groups of) optics 20, 30 to one another and in particular along the optical axis R. For this purpose, the optical axes R of the respective luminaire optics 10 are preferably aligned parallel to one another.
    In a preferred embodiment, it is conceivable for the respective (groups of) optics 20, 30 to be integrally formed with the connecting element 101, 102 assigned to them.
    det.
    The present invention is not restricted to the preceding exemplary embodiments. The features of the individual exemplary embodiments can be interchanged and / or combined in any way, provided that they are covered by the subject matter of the following claims. In particular, the present invention is not restricted to specific materials of the optics and their specific geometry - in particular with regard to the areas of optical influence - as long as they fulfill the task of minimizing beam divergence with defined or desired directed, variable light emission.
    权利要求:
    Claims (10)
    [1]
    1. Luminaire optics (10) having:
    a first optical system (20) which extends from a light entry region (21) towards a tip (22), _
    a second optical system (30) which has an opening (31) into which the first optical system (20) projects at least with its tip (22), the second optical system (30) moving away from the first optical system (20) Light-emitting area (32) widens out and is designed in such a way to couple light coupled out of the first optics (20) into the opening (31) and directed via a deflection surface (36) of the second optic (30) via the light-emitting area (32) from the to deliver (H) the second optics (30), the first optics (20) and the second optics (30) viewed in the direction of an optical axis (R) of the lamp optics (10) one behind the other and movable relative to one another along the optical axis (R) are arranged to change a light emission characteristic of the lamp optics (10).
    [2]
    2. Luminaire optics (10) according to claim 1, wherein the change in the light emission characteristic is zooming, that is to say a change in the opening angle a of the emitted light beam (H) for widening and focusing, and / or tilting and / or changing a scattering and / or Color conversion of the light or light bundle (H) emitted via the luminaire optics (10).
    [3]
    3. luminaire optics (10) according to claim 1 or 2, wherein the first optics (20) from the light entry area (21) to the tip (22) extending in cross-section has a parabolic or arcuate or other curved outer contour, the first optics (20 ) is preferably essentially conical.
    [4]
    4. Luminaire optics (10) according to one of the preceding claims, wherein the light entry region (21) with the tip (22) connecting side surface (23) of the first optics (20) is rotationally symmetrical.
    [5]
    5. Luminaire optics (10) according to one of the preceding claims, wherein the light coupling area (21) with the tip (22) connecting side surface (23) of the first optics (20) is designed such that preferably everything about the light coupling area (21) in the first optics (20) coupled light is totally reflected on the side surface (23) such that it is on the opposite side in each case via the side surface (23) of the first optics (20), in particular in the area of the tip (22) of the first optics ( 20), from which is extracted.
    [6]
    6. Luminaire optics (10) according to claim 4, wherein the focal point (F) of the totally reflecting side surface (23) lies in the center of the light entry region (21) and preferably inside or outside the first optics (20), particularly preferably on or off the optical axis (R).
    [7]
    7. luminaire optics (10) according to one of the preceding claims, wherein the light entry region (21) with the tip (22) connecting side surface (23) of the first optics (20) in a region (24) near the light entry region (21) of the light entry area (21) towards the tip (22) expanding or cylindrical.
    [8]
    8. light optics (10) according to any one of the preceding claims, wherein the first optics (20) is formed as a solid.
    [9]
    9. luminaire optics system (100), comprising at least two luminaire optics (10) according to one of the preceding claims with a first group of first optics (20) and a second group of second optics (30), the group of first optics (20) and the group of second optics (30) are designed to be movable relative to one another along the respective optical axes (R, R1, R2) in order to change a light emission characteristic of the luminaire optics system (100).
    [10]
    10. lamp (1) having a lamp optics (10) according to claims 1 to 8 or a lamp optics system (100) according to claim 9, further comprising at least one illuminant (2) for coupling light into the first (n) optics (s) ) (20).
    10 sheets of drawings
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    引用文献:
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    US20100014286A1|2005-06-01|2010-01-21|Kenji Yoneda|Light irradiation apparatus|
    CN101709833A|2009-10-16|2010-05-19|海洋王照明科技股份有限公司|LED light focusing and flooding lamp|
    US20140126234A1|2011-07-01|2014-05-08|Koninklijke Philips N.V.|Light guide|
    CN202613327U|2012-05-18|2012-12-19|得堡科技有限公司|Lamp body structure|
    US8087800B2|2007-10-01|2012-01-03|Lighting Science Group Corporation|Multi-cavity LED array RGB collimation optic|
    DE102010039306A1|2010-08-13|2012-02-16|Zumtobel Lighting Gmbh|Arrangement for emitting light with light guide element and reflector|DE102017125230A1|2017-10-27|2019-05-02|Siteco Beleuchtungstechnik Gmbh|LENS, LENS ARRANGEMENT AND LIGHT MODULE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102016207143.2A|DE102016207143A1|2016-04-27|2016-04-27|lights optics|
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