• 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:
    A lamp device mounted on a vehicle comprises a housing (11), a first translucent element (12) defining a housing space (13) with the housing (11), a lamp unit (14) housed in the space of housing (13) and comprising a light source, a sensor (15) housed in the housing space (13) and configured to detect information outside the vehicle based on invisible light, and a second translucent element (16) housed in the accommodating space (13) and covering the sensor (15). The second translucent element (16) has a lower visible light transmittance than the first translucent element (12).
    公开号:FR3062892A1
    申请号:FR1851106
    申请日:2018-02-09
    公开日:2018-08-17
    发明作者:Hiroaki Hara；Kazuhito Osada；Nobuyuki HORIKAWA
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    © Publication no .: 3,062,892 (to be used only for reproduction orders)
    ©) National registration number: 18 51106 ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY
    COURBEVOIE © Int Cl 8 : F21 S 41/20 (2017.01), F21 S 43/20, F 21 V 3/04
    A1 PATENT APPLICATION
    ©) Date of filing: 09.02.18.© Priority: 10.02.17 JP 2017023184. © Applicant (s): KOITO MANUFACTURING CO., LTD. - JP. ©) Date of availability of the request: 17.08.18 Bulletin 18/33. @ Inventor (s): HARA HIROAKI, OSADA KAZUHITO and HORIKAWA NOBUYUKI. ©) List of documents cited in the preliminary search report: The latter was not established on the date of publication of the request. (© References to other related national documents: ® Holder (s): KOITO MANUFACTURING CO., LTD .. ©) Extension request (s): © Agent (s): CABINET BEAU DE LOMENIE. © LAMP DEVICE.
    FR 3 062 892 - A1 (5 /) A lamp device mounted on a vehicle comprises a housing (11), a first translucent element (12) defining a housing space (13) with the housing (11), a unit for lamp (14) housed in the accommodation space (13) and comprising a light source, a sensor (15) housed in the accommodation space (13) and configured to detect information outside the vehicle on the basis of an invisible light, and a second translucent element (16) housed in the housing space (13) and covering the sensor (15). The second translucent element (16) has less visible light transmittance than the first translucent element (12).

    i This application claims priority from Japanese patent application No. 2017-023184, filed on February 10, 2017.
    The present invention relates to a lamp device to be mounted on a vehicle.
    In order to make an aid for driving a vehicle, it is necessary to mount on a vehicle body a sensor intended to acquire information outside the vehicle. A light detection and telemetry sensor (lidar) is known as an example of such a sensor (see for example the document JP-A-2010185769). The lidar sensor is a device intended to emit invisible light and acquire information over a distance to an object and an attribute of the object on the basis of reflected light. From the point of view of the efficient acquisition of information on the surroundings of the vehicle and from the design point of view, it is desired to have the sensor in a lamp chamber of the lamp device provided at the four corners of the vehicle. However, since the sensor intended to acquire information outside the vehicle on the basis of an invisible light generally has a relatively large volume, the sensor tends to be subject to a restriction of arrangement in the lamp room.
    [0005] Consequently, one aspect of the present invention improves a freedom of arrangement of a sensor intended to acquire information outside a vehicle on the basis of invisible light.
    According to one aspect of the present invention, there is provided a lamp device to be mounted on a vehicle, the lamp device comprising:
    housing ;
    a first translucent element defining a housing space with the housing;
    a lamp unit housed in the accommodation space and comprising a light source;
    a sensor housed in the accommodation space and configured to detect information outside the vehicle based on invisible light; and a second translucent element housed in the housing space and covering the sensor, in which the second translucent element has a less visible light transmittance than that of the first translucent element.
    In the above lamp device, the sensor may include at least one of a lidar sensor, a millimeter wave radar, an ultrasonic sensor, and an infrared camera.
    According to such a configuration, the second translucent element can function as a filter. More specifically, transmission of light not used for detection by the sensor, in particular transmission of visible light can be suppressed. Such a filter is generally provided in the sensor itself in order to reduce an influence of the disturbance light on a detection result. In the above configuration, since the second translucent element disposed in the housing space can function as such a filter, a structure for the filter function can be omitted from the sensor. That is, a size of the sensor can be reduced. Therefore, the freedom of arrangement in the housing space of the sensor for acquiring information outside the vehicle on the basis of invisible light can be improved.
    In general, one aspect of the sensor is largely different from one aspect of the lamp unit. Therefore, compared to a conventional lamp device in which only the lamp unit is housed in the accommodation space, a user may have a feeling of unnatural appearance. Since the second translucent element has less visible light transmittance than the first translucent element, the second translucent element has a gray or black appearance. Consequently, it is possible to make it difficult to visually identify from the outside of the vehicle the sensor arranged in the accommodation space. Therefore, design deterioration can be eliminated.
    In the above lamp device, the second translucent element may have a higher flexibility than that of the first translucent element.
    According to this configuration, the second translucent element can function as a damping material when a significant shock with a displacement of the sensor is applied to the lamp device.
    In the above lamp device, the second translucent element may have an appearance simulating the lamp unit.
    According to this configuration, the second translucent element can be identified visually as the lamp unit. Therefore, an aspect similar to the conventional lamp device in which only the lamp unit is housed in the lamp chamber can be provided. Therefore, the artificial feeling given to the user by placing the sensor in the accommodation space can be further suppressed.
    In the above lamp device, the second translucent element may be a part of an extension element.
    According to this configuration, a part of the extension element which is initially disposed in the housing space can function as a filter for the sensor. Therefore, not only can the artificial feel given to the user be suppressed, but a space utilization efficiency in the accommodation space can also be improved, by arranging the sensor in the accommodation space.
    The above and other aspects of the present invention will become more apparent and will be more readily appreciated from the following description of illustrative embodiments of the present invention taken in conjunction with the accompanying drawings, in which :
    showing one of the internal drawing showing drawing is a configuration
    Figure 1 is a drawing showing positions of fire devices in a vehicle according to a first embodiment;
    Figure schematically a fire devices of Figure 1;
    Figure 3 is schematically an internal configuration of a lamp device according to a second embodiment; and
    Figures 4A and 4B are drawings showing an aspect of the lamp device of Figure 3.
    Embodiments will be described in detail below with reference to the drawings. In each drawing used in the following description, the scale is changed appropriately in order to bring each element to a recognizable size.
    In the drawings, the arrow F indicates a forward direction of the illustrated structure. The arrow B indicates a rearward direction of the illustrated structure. The arrow U indicates an upward direction of the illustrated structure. The arrow D indicates a downward direction of the illustrated structure. The arrow L indicates a left direction of the illustrated structure. The arrow R indicates a straight direction of the structure shown. "Left" and "right" used in the following description indicate the left and right directions seen from a driver's seat.
    As shown in Figure 1, a left front lamp device 1LF according to a first embodiment is mounted on a left front corner portion of a vehicle 100. A right front lamp device 1RF according to the first embodiment is mounted on a right front corner portion of the vehicle 100.
    Figure 2 schematically shows an internal configuration of the right front lamp device 1RF seen from above the vehicle 100. Although the drawing is omitted, the left front lamp device 1LF has a configuration which is symmetrical with the device 1RF right front lamp.
    The right front 1RF lamp device comprises a housing 11 and a first translucent element 12. The housing 11 and the first translucent element 12 define a lamp chamber 13 (an example of a housing space).
    The right front 1RF lamp device comprises a lamp unit 14. The lamp unit 14 comprises a light source and an optical system. The optical system includes at least one of a lens and a reflector. Examples of the light source include a fire light source, a semiconductor light emitting element and the like. Examples of the fire light source include an incandescent lamp, a halogen lamp, a discharge lamp, a neon lamp and the like. Examples of the semiconductor light emitting element include a light emitting diode, a laser diode, an organic light emitting element and the like. The light emitted by the light source passes through the optical system and is emitted by the lamp unit 14.
    At least part of the wavelength of the light emitted by the lamp unit 14 is included in a visible light area. The light emitted by the lamp unit 14 passes through the first translucent element 12 and illuminates a predetermined area outside the vehicle 100.
    The 1RF right front lamp device comprises a lidar sensor 15. The lidar sensor 15 comprises an element intended to emit invisible light and an element intended to detect return light resulting from the reflection of invisible light on an object present outside the vehicle 100. In this embodiment, infrared light having a wavelength of 905 nm is used as invisible light. The lidar sensor 15 may include a scanning mechanism for scanning invisible light by changing a direction of emission (i.e., a direction of detection).
    The lidar sensor 15 is a sensor intended to acquire information outside the vehicle 100. For example, a distance to an object associated with the return light can be acquired on the basis of a duration between a time of emission of infrared light in a certain direction and a time of detection of return light. In addition, information on a shape of the object associated with the return light can be acquired by accumulating this distance data associated with the detection positions. Alternatively or additionally, information on an attribute, such as a material, of the object associated with the return light can be acquired based on a difference between the emitted light and the return light . As a variant or additionally, information on a color of the object (a white line, etc. on a road surface) can be acquired on the basis of a difference in a reflectivity of the return light from the road surface, for example.
    The right front 1RF lamp device comprises a second translucent element 16. The second translucent element 16 is arranged so as to cover at least the lidar sensor 15. More specifically, the second translucent element 16 is arranged so as to cover the minus a detection range (a solid angle) of the lidar sensor
    15.
    The infrared light emitted by the lidar sensor 15 passes through the second translucent element 16 and irradiates a predetermined area outside the vehicle 100. A range S indicated by a dotted line in FIG. 2 represents a range which may be irradiated (detected). The return light which results from a reflection by the irradiated object passes through the second translucent element 16 and is detected by the lidar sensor 15.
    The lidar sensor 15 delivers a signal corresponding to the detected attribute (intensity, wavelength, or equivalent) of the return light. The above information is acquired by appropriately processing the signal delivered by the lidar sensor 15 using an information processing unit or a processor (not shown). The information processing unit or processor can be included in the right front lamp device 1RF, or can be mounted in vehicle 100.
    The transmittance of visible light in the second translucent element 16 is less than the transmittance of visible light in the first translucent element 12. That is to say that the second translucent element 16 has a selectivity of length d wave which allows at least the wavelength of the infrared light emitted by the lidar sensor 15 and the wavelength of the return light to be detected by the lidar sensor 15 to pass through.
    According to such a configuration, the second translucent element 16 can function as a filter. More specifically, a transmission of light other than the infrared light used by the lidar sensor 15, in particular a transmission of visible light can be suppressed. Here, "delete" is intended to include a case where transmission of visible light is completely prevented (transmittance is zero).
    In general, such a filter is provided in the sensor itself in order to reduce an influence of the disturbance light on a detection result. Since the second translucent member 16 disposed in the lamp chamber 13 can function as a filter in this embodiment, a structure for the filter function can be omitted from the lidar sensor 15. That is, a size of the lidar sensor 15 can be reduced. Consequently, the freedom of arrangement in the lamp chamber 13 of the lidar sensor 15 for the acquisition of information outside the vehicle 100 on the basis of invisible light can be improved.
    One aspect of the lidar sensor 15 is, for example, a black cuboid or cubic shape, which is largely different from an aspect of the lamp unit 14. Therefore, compared to a conventional lamp device in which only the lamp unit is housed in the lamp chamber, a user may find the appearance unnatural. Since the second translucent element 16 has less visible light transmittance than the first translucent element 12, the second translucent element has a gray or black appearance. Therefore, it is possible to make it difficult to visually identify the lidar sensor 15 disposed in the lamp chamber 13 from outside the vehicle 100. Therefore, deterioration of the design can be suppressed.
    In this embodiment, the second translucent element 16 is a part of an extension element. The extension element is a design piece which covers part of the structure arranged in the lamp chamber 13 so as not to be visually recognized from the outside of the vehicle 100.
    According to such a configuration, part of the extension element which is initially disposed in the lamp chamber 13 can function as a filter for the lidar sensor 15. Consequently, not only the artificial sensation given to the user can be omitted, but an efficiency in using space in the lamp chamber 13 can also be improved, by placing the lidar sensor 15 in the lamp chamber 13. The second translucent element 16 can have flexibility higher than that of the first translucent element 12. For example, the first translucent element 12 can be formed, for example, by a polycarbonate resin. At least a part of the second translucent element 16 (a fixing part or equivalent with other elements) can be formed by a material made of rubber, silicone elastomer and the like.
    According to such a configuration, the second translucent element 16 can function as a damping material when a significant shock with a displacement of the lidar sensor 15 is applied to the right front lamp device 1RF.
    FIG. 3 schematically shows an internal configuration of a 2RF right front lamp device according to a second embodiment seen from above the vehicle 100. Constituent elements substantially common to the 1RF right front lamp device according to the first form are designated by the same references, and a repetitive explanation is omitted.
    The right front 2RF lamp device comprises a second translucent element 26. The second translucent element 26 is arranged so as to cover at least the lidar sensor 15. More specifically, the second translucent element 26 is arranged so as to cover the minus a detection range (a solid angle) of the lidar sensor 15.
    The infrared light emitted by the lidar sensor 15 passes through the second translucent element 26 and irradiates a predetermined area outside the vehicle 100. A range S indicated by a dotted line in FIG. 3 represents a range which may be irradiated (detected). Return light due to the reflection by the irradiated object passes through the second translucent element 26 and is detected by the lidar sensor 15. The transmittance of visible light in the second translucent element 26 is less than the transmittance of visible light in the first translucent element 12. That is to say that the second translucent element 26 has a wavelength selectivity which allows at least the wavelength of the infrared light emitted by the lidar sensor 15 and at the wavelength of the return light detected by the lidar sensor 15 to pass through.
    According to such a configuration, the second translucent element 26 can function as a filter. More specifically, a transmission of light other than the infrared light used by the lidar sensor 15, in particular a transmission of visible light can be suppressed. Here, "delete" is intended to include a case where the transmission of visible light is completely prohibited (the transmittance is zero).
    In general, such a filter is provided in the sensor itself in order to reduce an influence of the disturbance light on a detection result. Since the second translucent member 26 disposed in the lamp chamber 13 can function as a filter in this embodiment, a structure for the filter function can be omitted from the lidar sensor 15. That is, a size of the lidar sensor 15 can be reduced. Therefore, the freedom of arrangement in the lamp chamber 13 of the lidar sensor 15 for acquiring information outside the vehicle 100 on the basis of invisible light can be improved.
    One aspect of the lidar sensor 15 is, for example, a cuboid or black cubic shape, which is very different from an aspect of the lamp unit 14. Therefore, compared to a conventional lamp device in which only the lamp unit is housed in the lamp chamber, a user may have a feeling of unnatural appearance. Since the second translucent element 26 has less visible light transmittance than the first translucent element 12, the second translucent element has a gray or black appearance. Therefore, it is possible to make it difficult to visually identify the lidar sensor 15 disposed in the lamp chamber 13 from outside the vehicle 100. Therefore, deterioration of the design can be suppressed.
    Figure 4A shows an aspect of the 2RF right front lamp device seen from the front in a front-rear direction of the vehicle 100. Figure 4B shows an aspect of the 2RF right front lamp device seen from the right in a left direction - right of vehicle 100.
    In this embodiment, the second translucent element 26 has an aspect which simulates (simulated aspect of) the lamp unit 14. The expression “simulated aspect” means that at least one of the size, shape, color, and texture is the same or similar to the corresponding attribute of lamp unit 14.
    According to such a configuration, the second translucent element 26 can be visually identified as the lamp unit 14. Consequently, an aspect similar to the conventional lamp device in which only the lamp unit is housed in the lamp can be obtained. Consequently, the artificial sensation given to the user can be further suppressed by placing the lidar sensor 15 in the lamp chamber 13.
    In a similar manner to the second translucent element 16 according to the first embodiment, the second translucent element 26 may be a part of the extension element.
    In a similar manner to the second translucent element 16 according to the first embodiment, the second translucent element 26 may have a higher flexibility than that of the first translucent element 12. Each of the above embodiments is simply an example to facilitate understanding of the present invention. The configuration according to each of the embodiments can be appropriately modified or improved without departing from the scope of the present invention. In addition, it is obvious that equivalents fall within the technical scope of the present invention.
    In the above embodiments, a lidar sensor is used as the sensor to acquire information outside the vehicle 100. However, a sensor can suitably be chosen based on the type of information to be acquired as long as the acquisition is based on invisible light. For example, a millimeter wave radar, an ultrasonic sensor, an infrared camera and the like can be used.
    In the above embodiments, a single housing space (the lamp chamber 13) is defined by the housing 11 and the first translucent element 12. However, the interior of the housing space can be divided into plurality of spaces by a partition plate or equivalent.
    In the above embodiments, the lamp device comprising the lidar sensor 15 is used as a left front lamp device 1LF and a right front lamp device 1RF. However, a configuration described with reference to the right front lamp device 1RF can also be applied to a left rear lamp device 1LB arranged in a left rear corner of the vehicle 100 and a right rear lamp device 1RB arranged in a right rear corner of the vehicle 100 shown in Figure 1. For example, the right rear lamp device 1RB may have a symmetrical configuration with the right front lamp device 1RF (the light source is changed appropriately). The left rear lamp unit 1LB can have a symmetrical configuration with the right rear lamp unit 1RB.
    权利要求:
    Claims (5)
    [1" id="c-fr-0001]
    1. Lamp device configured to be mounted on a vehicle, comprising:
    a housing (11);
    a first translucent member (12) defining a housing space (13) with the housing (11);
    a lamp unit (14) housed in the accommodation space (13) and comprising a light source;
    a sensor (15) housed in the housing space detecting on the light-based information (13) and configured for the exterior of the invisible vehicle; and a second translucent element (16) housed in the housing space (13) and covering the sensor (15), in which the second translucent element (16) has a less visible light transmittance than that of the first translucent element ( 12).
    [2" id="c-fr-0002]
    2. Lamp device according to claim 1, in which the second translucent element (16) has a higher flexibility than that of the first translucent element (12).
    [3" id="c-fr-0003]
    3. Lamp device according to claim 1 or
    2, in which the second translucent element (16) has an appearance simulating the lamp unit (14).
    [4" id="c-fr-0004]
    4. Lamp device according to any one of claims 1 to 3, in which the second translucent element (16) is a part of an extension element.
    [5" id="c-fr-0005]
    5. Lamp device according to any one of
    5 claims 1 to 4, wherein the sensor (15) comprises at least one of a lidar sensor, a millimeter wave radar, an ultrasonic sensor, and an infrared camera.
    1/4
    类似技术:
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    JP2018129259A|2018-08-16|
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    引用文献:
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    WO2021008880A1|2019-07-16|2021-01-21|Valeo Vision|Motor vehicle lighting device|JP4815677B2|2001-02-20|2011-11-16|ソニー株式会社|Automotive video camera system and automotive outside mirror|
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    JP4842161B2|2007-01-31|2011-12-21|株式会社小糸製作所|Vehicle lighting|
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    EP2248390B1|2008-02-27|2015-09-30|Koninklijke Philips N.V.|Illumination device with led and one or more transmissive windows|
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    JP2015040824A|2013-08-23|2015-03-02|パナソニック株式会社|Laser radar|
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    KR101515751B1|2014-02-27|2015-04-28|이승신|Wheel Fender Side Lamp|JP2020079773A|2018-11-14|2020-05-28|株式会社デンソー|Radar mounting lighting fixture unit and laser radar device|
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    CN113423620A|2019-02-18|2021-09-21|株式会社小糸制作所|Dirt detection system, LiDAR unit, sensing system for vehicle, and vehicle|
    FR3100870B1|2019-09-16|2022-01-14|Valeo Vision|Light device of a vehicle|
    US11247602B2|2020-02-12|2022-02-15|Huf Hülsbeck & Fürst Gmbh & Co. Kg|Mounting a gesture sensor proximate to a light assembly|
    法律状态:
    2020-01-02| PLFP| Fee payment|Year of fee payment: 3 |
    2020-09-18| PLSC| Search report ready|Effective date: 20200918 |
    2021-10-01| RX| Complete rejection|Effective date: 20210824 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2017023184|2017-02-10|
    JP2017023184A|JP2018129259A|2017-02-10|2017-02-10|Lamp device|
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