• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Vehicle Light A vehicle light comprises a two-dimensional image forming device configured to form a contrast image from the light emitted by a light source (12); and a projection optical system configured to project the contrast image forward. The two-dimensional image forming device includes an image-shaping performance-reducing portion configured to decrease a forming image-forming performance of a portion of the projected contrast image. Figure for the abstract: Fig. 1A.
    公开号:FR3078768A1
    申请号:FR1902327
    申请日:2019-03-07
    公开日:2019-09-13
    发明作者:Takayuki Yagi
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    Description
    Title of invention: Vehicle FIRE
    Technical Field [0001] The invention relates to a vehicle fire.
    PRIOR ART The publication of Japanese patent application ri 9-104288 (JP 9-104288 A) describes a vehicle lighting device in which light emitted by a light source is reflected by a light changing device. direction of reflection such that light passes through a lens to form a desired light distribution configuration. In the reflection direction change device, a plurality of reflective elements is arranged in a matrix. In the vehicle lighting device, some of a large number of reflective elements arranged are controlled so that the light emitted by the light source is partially reflected in a direction which is not directed towards the lens. Light distribution patterns in a plurality of shapes can thus be formed.
    DESCRIPTION OF THE INVENTION However, in the vehicle lighting device described above, the light, which should be initially reflected in the direction which is not oriented towards the lens, can be reflected in a direction towards the lens and be radiated in front of a vehicle, due to a malfunction of some of the reflective elements. In this case, a previous vehicle or a pedestrian in front of a host vehicle may be affected by glare.
    The invention provides a vehicle fire which can reduce a glare influence.
    A vehicle light according to one aspect of the invention comprises a two-dimensional image forming device configured to form a contrast image from the light emitted by a light source; and a projection optical system configured to project the contrast image forward. The two-dimensional image forming device includes an image forming performance decreasing portion configured to decrease a forming image forming performance of a portion of the projected contrast image.
    Depending on the appearance, the part of the contrast image is not distinctly (clearly) formed. Thus, even in a situation where a person is affected by a glare from a light section of the projected contrast image, an influence of glare on the person can be reduced.
    The two-dimensional image forming device can be configured to selectively transmit the light emitted by the light source, to the projection optical system; and the image performance reducing portion may be provided in a position offset from a focus of the projection optical system. Thus, the imaging performance of forming the projected contrast part of the image can be decreased simply by arranging the imaging performance decreasing portion as described above.
    The two-dimensional image forming device can be configured to selectively transmit the light emitted by the light source, to the projection optical system; and the image forming performance reduction part may be a dispersing element provided in an intermediate part of an optical path from the two-dimensional image forming device to the projection optical system. Thus, the formation imaging performance of the projected contrast part of the image can be decreased without changing the manner in which the image forming performance reduction part is arranged.
    The two-dimensional image forming device can include a reflection zone which selectively reflects the light emitted by the light source, towards the optical projection system; and the image performance reduction portion may be a dispersing member provided in an intermediate portion of an optical path from the reflection area to the projection optical system. Thus, the formation imaging performance of the projected contrast part of the image can be decreased without changing the manner in which the image forming performance reduction part is arranged.
    The two-dimensional image forming device can include a reflection zone which selectively reflects the light emitted by the light source, towards the optical projection system; and the image performance reducing portion may be provided in a position offset from a focus of the projection optical system. Thus, the formation imaging performance of the projected contrast part of the image can be decreased simply by arranging the image forming performance reduction part as described above.
    The image performance reduction portion may be disposed in an optical path of light forming a region of the contrast image, the area being projected above a horizontal line in front of a vehicle. Thus, it is possible to reduce the influence of glare on a person who is present above the horizontal line in front of the vehicle.
    Any combination of the components described thus far, and a method, device, system and the like, which are provided by changing the expression of the invention, are also relevant as aspects of the invention.
    According to the invention, it is possible to produce the vehicle light which can reduce the influence of glare.
    Brief Description of the Drawings The features, advantages, and technical and industrial importance of the exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which identical references denote identical elements, and in which:
    [Fig.lA]
    Figure IA is a side view which schematically shows a vehicle light according to a first embodiment;
    [Fig.lB]
    Figure IB is a side view which schematically shows the arrangement of a two-dimensional image forming device according to the first embodiment;
    [Fig.lC]
    Figure IC is a front view of the two-dimensional image forming device according to the first embodiment;
    [Fig.2A]
    Figure 2A is a schematic view of a high beam distribution configuration formed by the vehicle light according to the first embodiment;
    [Fig.2B]
    Figure 2B is a schematic view of a partial high beam distribution configuration in which a radiation-free section is formed in part of the high beam distribution configuration;
    [Fig.2C]
    Figure 2C is a schematic view of a high beam distribution configuration;
    [Fig.3A]
    Figure 3A is a view of a transmission state of each of the liquid crystal elements in the two-dimensional imaging device at the time of formation of the high beam distribution pattern shown in Figure 2A;
    [Fig.3B]
    Figure 3B is a view of a transmission state of each of the liquid crystal elements in the two-dimensional imaging device at the time of formation of the partial high beam distribution pattern shown in Figure 2B;
    [Fig.3C]
    Figure 3C is a view of a transmission state of each of the liquid crystal elements in the two-dimensional imaging device at the time of formation of the high beam distribution pattern shown in Figure 2C;
    [Fig.4A]
    Fig. 4A is a view of a transmission state of each of the liquid crystal elements in the event that a malfunction has occurred in some of the liquid crystal elements in the two-dimensional imaging device forming the configuration high beam distribution;
    [Fig.4B]
    Figure 4B is a schematic view of the high beam distribution pattern formed by the two-dimensional imaging device shown in Figure 4A;
    [Fig.4C]
    Fig. 4C is a schematic view of a state where a imaging performance of forming part of a contrast image formed by the two-dimensional imaging device and projected by a projection lens is decreased ;
    [Fig.5A]
    Figure 5A is a side view which schematically shows a vehicle light according to a second embodiment;
    [Fig.5B]
    Figure 5B is a side view which schematically shows a configuration of a two-dimensional imaging device according to the second embodiment;
    [Fig.6A]
    Figure 6A is a side view which schematically shows a vehicle light according to a third embodiment;
    [Fig.6B]
    Fig. 6B is a side view which schematically shows the arrangement of a two-dimensional image forming device according to the third embodiment;
    [Fig.6C]
    Figure 6C is a front view of the two-dimensional image forming device according to the third embodiment;
    [Fig.7A]
    FIG. 7A is a side view which schematically shows a vehicle light according to a fourth embodiment, [0033] [fig.7B]
    Figure 7B is a side view which schematically shows a configuration of a two-dimensional imaging device according to the fourth embodiment; and [fig. 8]
    Figure 8 is a front view which schematically shows a configuration of a two-dimensional image forming device according to a fifth embodiment.
    Description of the embodiments A detailed description of the embodiments of the invention will be made below with reference to the drawings. In the description of the drawings, the same components are designated by the same references and symbols, and a duplicate description is appropriately omitted.
    A description of a first embodiment will be made. Figure IA is a side view which schematically shows a vehicle light according to the first embodiment, Figure IB is a side view which schematically shows the arrangement of a two-dimensional imaging device according to the first form FIG. 1C is a front view of the two-dimensional image forming device according to the first embodiment.
    A vehicle light 10 includes a light source 12; a two-dimensional image forming device 14 configured to form a contrast image (i.e. an image with light-dark contrast) from the light emitted by the light source 12 (i.e. ie with the use of the light emitted by the light source 12); and a projection lens 16 which is a projection optical system configured to project the contrast image forward.
    As the light source 12, any of various devices suitable for the vehicle light can be used. Examples of the light source 12 are devices such as a light bulb, a discharge lamp, a light emitting diode, a laser diode, and a neon tube. In addition, two or more devices can be combined depending on a purpose or required application performance. In addition, depending on the device, the brightness of the device can be controlled by switching on and off certain elements or by a pulse width modulation control.
    The two-dimensional image forming device 14 is configured to selectively transmit the light emitted by the light source 12, towards the projection lens 16. The two-dimensional image forming device 14 can control the capacity of specific light transmission (i.e. the rate at which light is transmitted). For example, the two-dimensional imaging device 14 may include a liquid crystal panel or the like in which the elements are arranged in a matrix. The two-dimensional image forming device 14 according to the first embodiment comprises two separate liquid crystal panels 14a, 14b. The liquid crystal panel 14a is arranged such that a lower end thereof is at or near a focal point E of the projection lens 16, and the liquid crystal panel 14b is arranged in a position offset relative to the hearth, that is to say a position behind (towards the rear) of the hearth E. The two liquid crystal panels 14a, 14b are arranged so that the elements do not overlap in a front view seen from the projection lens 16. The projection lens 16 projects light, which has passed through the two-dimensional imaging device 14, in front of the vehicle in a specified light distribution configuration. For example, the vehicle light 10 shown in Figure IA is configured to form a high beam distribution pattern.
    When the two-dimensional image forming device 14 is brought into a state where a part of the elements arranged in the matrix does not transmit light, a section without radiation (a dark section) can be formed in a part of the light distribution configuration. In this way, good visibility can be obtained in a large area in front of the vehicle while a person (an occupant of a vehicle or a pedestrian) who is present in the radiation-free section is not affected by glare.
    Figure 2A is a schematic view of the high beam distribution configuration made by the vehicle light 10 according to the first embodiment, Figure 2B is a schematic view of a high beam distribution configuration partial in which the radiation-free section is formed in a part of the high beam distribution configuration, and Figure 2C is a schematic view of a high beam distribution configuration. Figure 3A is a view of a transmission state of each liquid crystal element in the two-dimensional imaging device at the time of formation of the high beam distribution pattern shown in Figure 2A, Figure 3B is a view of a transmission state of each of the liquid crystal elements in the two-dimensional imaging device at the time of formation of the partial high beam distribution pattern shown in Figure 2B, and Figure 3C is a view of a transmission state of each of the liquid crystal elements in the two-dimensional imaging device at the time of formation of the high beam distribution pattern shown in Figure 2C. Each liquid crystal element 15a shown in Figure 3A in Figure 3C is in a state of transmission of the light emitted by the light source 12. Each liquid crystal element 15b shown in Figure 3A in Figure 3C is in a state of non-transmission of the light emitted by the light source 12.
    A light section of the two-dimensional image forming device 14 shown in each of FIG. 3A in FIG. 3C is formed in the state where the liquid crystal elements 15a transmit the light emitted by the light source 12. A dark section of the two-dimensional image forming device 14 shown in each of FIG. 3B and of FIG. 3C is formed in the state where the liquid crystal elements 15b do not transmit the light emitted by the light source 12. In addition, the image which is formed by the two-dimensional image forming device 14 shown in each of Figure 3A to Figure 3C is reversed by the projection lens 16 and projected in front of the vehicle in the distribution configuration of light shown in each of Figure 2A to Figure 2C.
    As described above, in the case where the two-dimensional image forming device 14 is of a transmission type and at least some of the liquid crystal elements should ideally be in the non state -transmission of light forward, light can be transmitted through the liquid crystal elements due to a slight light leak from the liquid crystal elements or a malfunction (failure to stop the light) liquid crystal elements.
    Figure 4A is a view of the transmission state of each of the liquid crystal elements in the event that a malfunction has occurred in some of the liquid crystal elements in the two-dimensional image forming device 14 forming the high beam distribution pattern, Figure 4B is a schematic view of the high beam distribution pattern formed by the two-dimensional imaging device 14 shown in Figure 4A, and Figure 4C is a schematic view of a state where an image forming performance of forming part of the contrast image formed by the two-dimensional image forming device 14 and projected by the projection lens 16 is decreased.
    As shown in Figure 4A, the liquid crystal panel 14b of the two-dimensional image forming device 14 controls the transmission of mainly radiated light to an RH area above a horizontal line H in the light distribution configuration. However, in the case where the liquid crystal element, which should be initially in the non-light transmitting state, is brought into the light transmitting state due to a malfunction, such as this is represented by a liquid crystal element 15c in Figure 4A, the light is radiated to an area RI which is a part of the area RH shown in Figure 4B. It follows that, in the case where a preceding vehicle or a pedestrian is present in the RI zone, an occupant of the preceding vehicle or the pedestrian is affected by the glare.
    In view of the above, the two-dimensional image forming device 14 of the vehicle light 10 according to the first embodiment comprises an image forming performance reduction part which decreases an image forming performance. image forming the part of the projected contrast image. More specifically, the image performance reducing portion is the liquid crystal panel 14b which is provided in the position behind the (toward the rear of) focus F of the projection lens 16. The liquid crystal panel 14b can be provided in a position in front of (in front of) the focal point F of the projection lens 16. In the case where the liquid crystal panel 14b is offset with respect to the focal point F as described above, the part of the contrast image formed by the liquid crystal panel 14b is not distinctly (clearly) formed (see an area RI 'in Figure 4C) when the contrast image (the light transmitted through the element liquid crystal 15c) is projected in front of the vehicle.
    Thus, the vehicle light 10 can blur a contour of the contrast image in the RH area which includes the RI 'area and is located above the horizontal line H, and can thus form the distribution configuration partial high beam which does not cause a driver of a host vehicle to feel discomfort. Even in a situation where a person is affected by the glare of the light section of the projected contrast image due to a malfunction of some of the liquid crystal elements, an influence of the glare on the person can be reduced.
    The liquid crystal panel 14b is arranged in an optical path of the light forming the area of the contrast image, which is projected above the horizontal line H in front of the vehicle. Thus, it is possible to reduce the influence of glare on a person who is present above the horizontal line H in front of the vehicle.
    As described above, the vehicle light 10 according to the first embodiment can decrease the imaging performance of forming the part of the contrast image simply by arranging the crystal panel liquid 14b as described above. Here, imaging performance can be expressed as a modulation transfer function characteristic, resolution power, contrast, residual aberration, or the like.
    A description of a second embodiment will be made. Figure 5A is a side view which schematically shows a vehicle light according to the second embodiment, and Figure 5B is a side view which schematically shows a configuration of a two-dimensional imaging device according to the second form of achievement. The same description as that of the first embodiment will be appropriately omitted.
    A vehicle light 20 according to the second embodiment differs from the vehicle light 10 according to the first embodiment in a configuration of a two-dimensional image forming device 18. More specifically, the device for forming two-dimensional image 18 includes a liquid crystal panel 18a configured to selectively transmit the light emitted from the light source 12 to the projection lens 16, in a similar manner to the two-dimensional image forming device 14. A lower half of the liquid crystal panel 18a, i.e. a part of liquid crystal panel 18b controls the transmission of the mainly radiated light towards the area RH (FIG. 4B) above the horizontal line H in the distribution configuration of light, and is part of the imaging performance decreasing part. A scattering element 18c configured to scatter the light is provided on a surface of the liquid crystal panel portion 18b. In this way, the imaging performance of forming the portion of the projected contrast image can be decreased without changing the manner in which the liquid crystal panel 18a is arranged.
    The dispersion element 18c can be provided in an intermediate part of an optical path from the two-dimensional image-forming device 18 to the projection lens 16. The dispersion element 18c can be provided on a surface of the liquid crystal panel 18a, the surface facing the light source 12. The dispersing member 18c may be provided in a specified position which is in front of, and away from, the liquid crystal panel 18a . Examples of the dispersing element are a microlens, a micro-prism, and the like.
    In the vehicle light 20 with the configuration, the liquid crystal element, which should be initially in the state of non-transmission of light, can be brought into the state of transmission of light because a malfunction, as shown by the liquid crystal element 15c in Figure 4A. In this case, even when an occupant of a preceding vehicle or a pedestrian is present in the RI 'zone (see Figure 4C), it is possible to reduce the influence of glare on the occupant of the preceding vehicle or the pedestrian, as in the case of the vehicle light 10 according to the first embodiment.
    A description of a third embodiment will be made. Figure 6A is a side view which schematically shows a vehicle light according to the third embodiment, Figure 6B is a side view which schematically shows the arrangement of a two-dimensional imaging device according to the third form Fig. 6C is a front view of the two-dimensional image forming device according to the third embodiment. A vehicle light 30 includes the light source 12; a reflector 32 configured to reflect the light emitted from the light source 12 to condense (concentrate) the light; a two-dimensional image forming device 34 configured to form the contrast image from the light reflected by the reflector 32; and the projection lens 16 configured to project the contrast image forward.
    A main difference between the two-dimensional image forming device 34 according to the third embodiment and the two-dimensional image forming device 14 according to each of the first embodiment and the second embodiment is as follows . While the two-dimensional imaging device 14 according to each of the first embodiment and the second embodiment is of the transmission type, the two-dimensional imaging device 34 according to the third embodiment is of a thinking type. However, the effects of the vehicle light 30 are substantially the same as those of the vehicle light 10 and the vehicle light 20. Thus, a description will mainly relate to the difference in configuration.
    The two-dimensional image forming device 34 includes a reflection zone which selectively reflects the light emitted by the light source 12, towards the projection lens 16. The two-dimensional image forming device 34 can control a direction in which light is reflected. For example, the two-dimensional imaging device 34 may include a reflective liquid crystal panel in which liquid crystal elements are arranged in a matrix, a micro-electromechanical system (MEMS) in which micro-mirrors are arranged in a matrix, or equivalent. A transparent cover may be disposed on a reflective surface of the two-dimensional image forming device 34, so as to protect the liquid crystals or the micro-mirrors from the external environment.
    The two-dimensional image forming device 34 according to the third embodiment comprises two separate MEMS panels 34a, 34b. The MEMS panel 34a is arranged so that a lower end thereof is at or near the focal point E of the projection lens 16, and the MEMS panel 34b is arranged in the position offset from the focal point E, i.e. the position behind (towards the rear of) focal point E. The two MEMS panels 34a, 34b are arranged so that the elements do not overlap in the front view seen from the projection lens 16. The projection lens 16 projects light, which has been reflected by the two-dimensional imaging device 34, in front of the vehicle in a specified light distribution configuration. For example, the vehicle light 30 shown in Figure 6A is configured to form the high beam distribution pattern.
    When some of the micro-mirror elements arranged in the matrix are brought into a state of non-reflection of light, the non-radiation section (the dark section) can be formed in the part of the light distribution configuration. . In this way, good visibility can be obtained in a large area in front of the vehicle while a person (an occupant of a vehicle or a pedestrian) who is present in the radiation-free section is not affected by the glare.
    Similarly to the vehicle light 10 according to the first embodiment, in the vehicle light 30 according to the third embodiment, even when at least some of the micro-mirror elements should ideally be in a state without reflection of light towards the projection lens 16, the micromirror elements may not move from reflective positions in which light is radiated towards the projection lens 16 due to a malfunction of the microphone elements -mirror. In this case, as shown in Figure 4B, the light is radiated to the RI area which is the part of the RH area. It follows that, in the case where a preceding vehicle or a pedestrian is present in the RI zone, an occupant of the preceding vehicle or the pedestrian is affected by the glare.
    In view of the above, the two-dimensional image forming device 34 according to the third embodiment includes the image forming performance decreasing portion which decreases the image forming performance of the part of the projected contrast image. More specifically, the image performance reduction portion is the MEMS panel 34b which is provided in the position behind the focus F of the projection lens 16. The MEMS panel 34b can be provided in the position in front of the focus F of the projection lens 16. In the case where the MEMS panel 34b is offset from the focal point F as described above, the part of the contrast image formed by the MEMS panel 34b is not distinctly (clearly) formed (see zone RI 'in FIG. 4C) when the contrast image (the light reflected by a micro-mirror element 35c) is projected in front of the vehicle. Thus, even in a situation where a person is affected by the glare of the light section of the projected contrast image due to a malfunction of some of the micro-mirror elements, the influence of glare on the person can be reduced.
    As described above, the vehicle light 30 according to the third embodiment can decrease the image forming performance of forming the part of the projected contrast image simply by arranging the MEMS panel 34b as described above.
    A description of a fourth embodiment will be made. Figure 7A is a side view which schematically shows a vehicle light according to the fourth embodiment, and Figure 7B is a side view which schematically shows a configuration of a two-dimensional imaging device according to the fourth form of achievement. The same description as that of the third embodiment will be appropriately omitted.
    A vehicle light 40 according to the fourth embodiment differs from the vehicle light 30 according to the third embodiment in a configuration of a two-dimensional image forming device 36. More specifically, in a similar manner to two-dimensional image forming device 34, the two-dimensional image forming device 36 includes a MEMS panel 36a configured to selectively reflect the light emitted from the light source 12 toward the projection lens 16 (i.e. - say the optical projection system). A lower half of the MEMS panel 36a, i.e. a part of MEMS panel 36b controls a state of reflection of the light mainly radiated towards the area RH (FIG. 4B) above the horizontal line H in the configuration of light distribution, and is a part of the part of decreasing imaging performance. A dispersing member 36c is provided on a surface of the MEMS panel portion 36b. In this way, the imaging performance of forming the portion of the projected contrast image can be decreased without changing the manner in which the MEMS panel 36a is arranged.
    The dispersion element 36c can be provided in an intermediate part of an optical path from the two-dimensional image-forming device 36 to the projection lens 16. The dispersion element 36c can be provided in a specified position which is in front of and away from the MEMS panel 36a. In the vehicle light 40 with the configuration, the micro-mirror element, which should be initially in a control state without reflection of the light towards the projection lens 16, may not move from the reflective position in which light is reflected back to the projection lens 16 due to a malfunction, as shown by the micro-mirror element 35c in Figure 6C. In this case, even when a preceding vehicle or a pedestrian is present in the RI 'zone (see FIG. 4C), it is possible to reduce the influence of the glare on an occupant of the preceding vehicle or the pedestrian, as in the case of vehicle light 30 according to the third embodiment.
    A description of a fifth embodiment will be made. With regard to the dispersing elements provided on the surfaces of the two-dimensional imaging device 18 according to the second embodiment and the two-dimensional imaging device 36 according to the fourth embodiment, a degree of dispersion is uniform in a complete lower half of each of the two-dimensional imaging devices. In contrast, in a two-dimensional imaging device according to the fifth embodiment, the degree of dispersion caused by a dispersing element provided on a surface thereof differs depending on the position. Figure 8 is a front view which schematically shows a configuration of the two-dimensional image forming device according to the fifth embodiment.
    In a two-dimensional image forming device 42 shown in Figure 8, a dispersing member 44 is provided on a surface of a lower half of the transmissive liquid crystal panel 18a. The dispersing member 44 includes a high dispersing section 44a having a relatively high degree of dispersing, and a low dispersing section 44b having a relatively low degree of dispersing. The highly dispersed section 44a is provided in an upper central zone of the liquid crystal panel part 18b which controls the transmission of the radiated light to the zone RH (FIG. 4B) above the horizontal line H. The section to low dispersion 44b is provided around the high dispersion section 44a. A difference in the degree of scatter indicates a difference in light expansion due to the presence or absence of the scatter element. In this way, it is possible to further decrease the formation imaging performance of a central section where a light intensity is particularly high in the high beam distribution configuration. Thus, it is possible to further reduce the influence of glare on a person who is present in the central section.
    Each of the vehicle lights comprising the two-dimensional imaging devices as described above is particularly suitable for a fog light or a low beam. In addition, each of the vehicle lights described above has the configuration which is appropriate when an adaptively controlled beam including a row of MEMS mirrors is used for the dipped beam or the fog light, for example.
    The vehicle light according to each of the embodiments described above comprises a sensor which detects a road user such as a preceding vehicle and a pedestrian. Thus, the vehicle light forms the appropriate light distribution configuration based on an adaptively controlled beam control and can thus ensure good visibility in front of the vehicle while minimizing, as much as possible, the road user is affected by glare.
    The description of the invention has been made so far with reference to each of the embodiments described above. The invention is not limited to the embodiments described above and includes different modes in which the configurations of two or more of the embodiments are suitably combined, and / or the configuration (s) of the form (s) of implementation is / are appropriately substituted. It is possible to appropriately change the combination of components or a processing order in each embodiment, or to make different design changes in each embodiment, based on the knowledge of a person skilled in the art. Embodiments to which such modifications are added may also be included within the scope of the invention.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    [Claim 1] [Claim 2] [Claim 3] [Claim 4] [Claim 5]
    claims
    A vehicle light comprising a two-dimensional imaging device configured to form a contrast image from the light emitted from a light source (12); and a projection optical system configured to project the contrast image forward, the vehicle light being characterized in that the two-dimensional image forming device includes an image forming performance decreasing portion configured to decrease the imaging performance of forming part of the projected contrast image.
    Vehicle light according to claim 1, in which:
    the two-dimensional imaging device is configured to selectively transmit the light emitted from the light source (12) to the projection optical system; and the image performance reduction portion is provided in an offset position relative to a focus of the projection optical system.
    Vehicle light according to claim 1, in which:
    the two-dimensional imaging device is configured to selectively transmit the light emitted from the light source (12) to the projection optical system; and the image forming performance reduction part is a dispersing element provided in an intermediate part of an optical path from the two-dimensional image forming device to the projection optical system.
    Vehicle light according to claim 1, in which:
    the two-dimensional image forming device comprises a reflection zone which selectively reflects the light emitted by the light source (12), towards the projection optical system; and the image forming performance reduction portion is a dispersing member provided in an intermediate portion of an optical path from the reflection area to the projection optical system.
    Vehicle light according to claim 1, in which:
    the two-dimensional image forming device comprises a reflection zone which selectively reflects the light emitted by the light source (12), towards the projection optical system; and [Claim 6] the image forming performance decrease portion is provided in a position offset from a focus of the projection optical system.
    A vehicle light according to any one of claims 1 to 5 wherein the imaging performance decreasing portion is disposed in an optical path of the light forming an area of the contrast image, the area being projected at the - above a horizontal line in front of a vehicle.
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    同族专利:
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    CN209470138U|2019-10-08|
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    US10781988B2|2020-09-22|
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    DE102019203106A1|2019-09-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19530008B4|1995-08-16|2005-02-03|Automotive Lighting Reutlingen Gmbh|Illumination device for vehicles with a reflective deflection device|
    JP4579154B2|2005-12-28|2010-11-10|株式会社小糸製作所|Vehicle headlamp|
    WO2014002630A1|2012-06-29|2014-01-03|株式会社小糸製作所|Vehicle lamp and control method therefor|
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    JP2019160437A|2018-03-08|2019-09-19|株式会社小糸製作所|Vehicular lighting fixture|JP2019160437A|2018-03-08|2019-09-19|株式会社小糸製作所|Vehicular lighting fixture|
    WO2021142535A1|2020-01-17|2021-07-22|Magna Closures Inc.|Anti-glare vehicle headlights|
    法律状态:
    2020-02-14| PLFP| Fee payment|Year of fee payment: 2 |
    2021-02-05| PLSC| Publication of the preliminary search report|Effective date: 20210205 |
    2021-02-10| PLFP| Fee payment|Year of fee payment: 3 |
    2022-02-09| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2018-041522|2018-03-08|
    JP2018041522A|JP2019160437A|2018-03-08|2018-03-08|Vehicular lighting fixture|
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