WO2021182410A1 - 灯具ユニットおよび車両用灯具 - Google Patents

灯具ユニットおよび車両用灯具 Download PDF

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Publication number
WO2021182410A1
WO2021182410A1 PCT/JP2021/009037 JP2021009037W WO2021182410A1 WO 2021182410 A1 WO2021182410 A1 WO 2021182410A1 JP 2021009037 W JP2021009037 W JP 2021009037W WO 2021182410 A1 WO2021182410 A1 WO 2021182410A1
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WIPO (PCT)
Prior art keywords
light
lamp
light source
projection lens
lens
Prior art date
Application number
PCT/JP2021/009037
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
樹生 伊東
貴彦 本多
中村　俊之
隆明 小松
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2020040554A external-priority patent/JP2021144786A/ja
Priority claimed from JP2020046155A external-priority patent/JP2021150054A/ja
Priority claimed from JP2020068815A external-priority patent/JP7433120B2/ja
Priority claimed from JP2020070773A external-priority patent/JP2021168250A/ja
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Priority to CN202180020373.3A priority Critical patent/CN115280064A/zh
Publication of WO2021182410A1 publication Critical patent/WO2021182410A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/37—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/60—Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present disclosure relates to a lamp unit including a reflective spatial light modulator. Further, the present disclosure relates to a vehicle lamp in which two lamp units equipped with a projection lens are arranged in parallel. The present disclosure also relates to a vehicle lamp in which a lamp unit including a spatial light modulator and a projection lens is housed in a lamp chamber.
  • an in-vehicle lamp unit a lamp unit configured to irradiate light from a light source reflected by a spatial light modulator toward the front of the unit via a projection lens is known.
  • Patent Document 1 as a configuration of a spatial light modulator in such a lighting equipment unit, a first angular position for reflecting light from a light source toward a projection lens and a first angle position for reflecting light toward a direction away from the projection lens are described. Described is provided with a reflection control unit in which a plurality of reflection elements configured so as to selectively take two angular positions are arranged.
  • the lamp unit described in Patent Document 1 draws a light distribution pattern for road surface drawing (that is, characters, symbols, etc.) on the road surface in front of the vehicle by controlling the spatial distribution of reflected light in the spatial light modulator.
  • the light distribution pattern for this purpose can be formed.
  • Patent Document 2 as a configuration of a spatial light modulator in such a lighting equipment unit, a first angular position for reflecting light from a light source toward a projection lens and reflection toward a direction deviating from the projection lens are provided. Described are those provided with a plurality of reflecting elements configured to selectively take a second angular position.
  • the lamp unit described in Patent Document 2 can form a light distribution pattern for road surface drawing on the road surface in front of the vehicle, as in Patent Document 1 which controls the spatial distribution of reflected light in the spatial light modulator. It is composed.
  • a spatial light modulator has a rectangular outer shape of the reflection control unit. Therefore, if the entire area of the reflection control unit is projected on the road surface in front of the vehicle, the maximum projection area is the outer shape.
  • the light distribution pattern for road surface drawing is formed in the maximum projection region having such an inverted trapezoidal outer shape, there is a risk of giving a sense of discomfort to the driver or the like.
  • a first object of the present disclosure is to provide a lamp unit provided with a reflective spatial light modulator, which can form a light distribution pattern for road surface drawing without giving a sense of discomfort to a driver or the like. That is.
  • a second object of the present disclosure is to call attention to the surroundings by forming a light distribution pattern for road surface drawing in a lamp unit provided with a reflective spatial light modulator without interfering with its light distribution function. It is to provide a lamp unit whose function can be enhanced.
  • the lamp unit described in Patent Document 2 is spatially light-modulated. Since the central positions of the plurality of reflecting elements constituting the vessel are located on the optical axis of the projection lens, it is necessary to arrange the lamp unit in a state of being tilted diagonally downward in order to improve its irradiation efficiency.
  • the lamp unit when forming a light distribution pattern for a head lamp or the like by irradiation light from another lamp unit, it is necessary to irradiate the light toward the front of the lamp, so in order to improve the irradiation efficiency. It is necessary to arrange the lamp unit horizontally.
  • the two lamp units arranged in parallel have different projection lens orientations, which impairs the appearance of the vehicle lamp.
  • a third object of the present disclosure is to display various light distribution patterns including a light distribution pattern for drawing a road surface in a vehicle lamp in which two lamp units equipped with a projection lens are arranged in parallel. It is an object of the present invention to provide a vehicle lamp that can be efficiently formed without damaging the above.
  • the lamp unit of a vehicle lamp is generally housed in a lamp chamber composed of a lamp body and a translucent cover, the irradiation light from the lamp unit is emitted toward the front of the lamp through the translucent cover. Will be done.
  • the light-transmitting cover can also be used.
  • the focal point of the projection optical system may be slightly deviated from the original position in the front-rear direction of the lamp, and it may not be possible to accurately form a light distribution pattern for road surface drawing.
  • a fourth object of the present disclosure is for a vehicle in which a lamp unit equipped with a spatial light modulator and a projection lens is housed in a lamp chamber, and a light distribution pattern for road surface drawing can be accurately formed. To provide lighting equipment.
  • the present disclosure aims to achieve the first purpose by providing a configuration provided with a predetermined light-shielding member.
  • the lamp unit is In a lamp unit configured to irradiate light from a light source reflected by a spatial light modulator toward the front of the unit through a projection lens.
  • the spatial light modulator selectively adopts a first angular position that reflects light from the light source toward the projection lens and a second angular position that reflects light from the projection lens in a direction away from the projection lens.
  • It is provided with a reflection control unit in which a plurality of reflection elements configured to obtain the light are arranged.
  • a light-shielding member that blocks a part of the reflected light from the reflection control unit is arranged on the front side of the unit with respect to the reflection control unit.
  • the light-shielding member is formed so that the left-right width of the non-light-shielding region that does not block the reflected light from the reflection control unit is narrower in the lower part than in the upper part.
  • the "lamp unit” may be configured so that the light emitted from the light source is directly incident on the spatial light modulator, or the space is in a state where the light emitted from the light source is controlled by a reflector, a lens, or the like. It may be configured to be incident on the light modulator.
  • the "spatial light modulator” includes a reflection control unit in which a plurality of reflecting elements configured so as to selectively take a first angular position and a second angular position are arranged. If so, the specific configuration is not particularly limited.
  • the "light-shielding member” is configured to block a part of the reflected light from the reflection control unit, and is formed so that the left-right width of the non-light-shielding region is narrower in the lower part than in the upper part.
  • the specific arrangement and configuration thereof are not particularly limited.
  • the specific shape of the "non-light-shielding region” is not particularly limited as long as the left-right width thereof is formed to be narrower in the lower portion than in the upper portion.
  • the “non-light-shielding region” may be formed so that the left-right width gradually narrows, the left-right width may be gradually narrowed, or the left and right sides are evenly narrowed. It may be formed so that the width becomes narrow, or it may be formed so that the left and right width becomes narrow unevenly on the left and right.
  • the second object is achieved by devising the arrangement of the first and second light sources as the light sources.
  • the lamp unit is In a lamp unit configured to irradiate light from a light source reflected by a spatial light modulator toward the front of the unit through a projection lens.
  • the spatial light modulator includes a plurality of reflecting elements configured to selectively adopt a first angular position and a second angular position.
  • a first light source and a second light source are provided as the light source.
  • the first light source the light from the first light source is reflected toward the projection lens by the reflecting elements at the first angular position, and is reflected by the reflecting elements at the second angular position. It is arranged at a position where it reflects away from the projection lens.
  • the light from the second light source is reflected toward the projection lens by the reflecting elements at the second angular position, and is reflected by the reflecting elements at the first angular position. It is arranged at a position where it reflects away from the projection lens.
  • the second light source is arranged at a position off the plane including the optical axis of the projection lens and the light emitting center of the first light source.
  • the "spatial light modulator” has a specific configuration if it includes a plurality of reflecting elements configured to selectively adopt a first angular position and a second angular position. Is not particularly limited.
  • the "projection lens" may be composed of a single lens or may be composed of a plurality of lenses.
  • the present disclosure aims to achieve the third purpose by devising the configuration of the lamp unit equipped with the spatial light modulator.
  • the vehicle lamp according to one aspect of the present disclosure is In vehicle lighting equipment in which the first lighting equipment unit and the second lighting equipment unit are arranged in parallel,
  • the first lamp unit is configured to irradiate the light from the first light source reflected by the first spatial light modulator toward the front of the lamp via the first projection lens.
  • the second lamp unit is configured to irradiate the light from the second light source toward the front of the lamp via the second projection lens.
  • the first spatial light modulator has a first angular position that reflects light from the first light source toward the first projection lens and a second that reflects light toward a direction away from the first projection lens. It is provided with a plurality of first reflecting elements configured to selectively take an angular position.
  • the first space optical modulator is arranged in a state where the center positions of the plurality of first reflecting elements are displaced upward from the optical axis of the first projection lens.
  • first lamp unit and the second lamp unit are arranged in parallel, the specific positional relationship between the two is not particularly limited.
  • the "first lamp unit” may be configured so that the light emitted from the first light source is directly incident on the first spatial light modulator, or the light emitted from the first light source may be reflected by a reflector or the like. It may be configured to be incident on the first spatial light modulator in a state controlled by a lens or the like.
  • the "second lamp unit” may be configured so that the light emitted from the second light source is directly incident on the second projection lens, or the light emitted from the second light source is reflected by a reflector, a lens, or the like. It may be configured to be incident on the second projection lens in a state controlled by the above.
  • the "first spatial optical modulator” is specific if it includes a plurality of reflecting elements configured to selectively take a first angular position and a second angular position.
  • the configuration is not particularly limited, and if the central positions of the plurality of first reflecting elements are arranged in a state of being displaced upward from the optical axis of the first projection lens, the specific amount of the upward displacement is specific.
  • the specific value is not particularly limited.
  • the present disclosure aims to achieve the fourth purpose by providing a configuration provided with a predetermined adjustment mechanism.
  • the vehicle lamp according to one aspect of the present disclosure is in a vehicle lamp in which a lamp unit is housed in a lamp chamber composed of a lamp body and a translucent cover.
  • the lamp unit is configured to irradiate light from a light source reflected by a spatial light modulator toward the front of the lamp via a projection lens.
  • the spatial light modulator selectively adopts a first angular position that reflects light from the light source toward the projection lens and a second angular position that reflects light from the projection lens in a direction away from the projection lens.
  • the lamp unit includes a bracket that supports the spatial light modulator and a lens holder that supports the projection lens.
  • An adjustment mechanism for adjusting the relative positional relationship between the bracket and the lens holder in the front-rear direction of the lamp is provided so as to be operable from outside the lamp room.
  • the spatial light modulator includes a plurality of reflecting elements configured to selectively take a first angular position and a second angular position
  • the specific configuration thereof is as follows. It is not particularly limited.
  • the "adjustment mechanism" is provided so that the relative positional relationship between the bracket supporting the spatial light modulator and the lens holder supporting the projection lens in the front-rear direction of the lamp can be operated from outside the lamp room. If it is, the specific configuration is not particularly limited.
  • the lighting unit is configured to irradiate the light from the light source reflected by the spatial light modulator toward the front of the unit via the projection lens, and thus is reflected by the spatial light modulator.
  • various light distribution patterns can be formed with high accuracy.
  • the spatial optical modulator includes a reflection control unit in which a plurality of reflecting elements configured so as to selectively take a first angular position and a second angular position are arranged, and the unit thereof. Since a light-shielding member that blocks a part of the reflected light from the reflection control unit is arranged on the front side, even if a plurality of reflection elements are all at the first angle position (that is, all of the reflection control unit). Even if the area can be projected on the road surface in front of the vehicle, the maximum projected area actually projected on the road surface in front of the vehicle is a non-light-shielding area (that is, the reflected light from the reflection control unit is blocked by the light-shielding member. It is possible to set the outer shape corresponding to the outer shape of the area (there is no area).
  • the outer shape of the maximum projection area can be made closer to a rectangular shape from an inverted trapezoidal shape in top view. As a result, both side edges of the maximum projection area can be extended in a direction substantially along the road shoulder or the center line.
  • the light distribution pattern for road surface drawing in the maximum projection region having an outer shape close to such a rectangular shape, it is possible to prevent the driver or the like from feeling uncomfortable.
  • the lighting equipment unit provided with the reflective spatial light modulator it is possible to form a light distribution pattern for road surface drawing without giving a sense of discomfort to the driver or the like.
  • the lamp unit according to one aspect of the present disclosure is configured to irradiate the light from the light source reflected by the spatial light modulator toward the front of the unit via the projection lens, and thus the spatial light modulator.
  • the spatial light modulator By controlling the spatial distribution of the reflected light, various light distribution patterns can be formed with high accuracy.
  • the spatial light modulator is provided with a plurality of reflecting elements configured to selectively adopt the first angular position and the second angular position, and the first light source and the second light source are used as the light sources.
  • the first light source is provided with a light source, and the light from the first light source is reflected toward the projection lens by each reflecting element at the first angle position, and each reflecting element at the second angle position.
  • the second light source is arranged at a position where the light from the second light source is reflected toward the projection lens by each reflecting element at the second angle position. Since each reflecting element at the first angular position is arranged at a position where it is reflected in a direction away from the projection lens, the following effects can be obtained.
  • the first light source when the first light source is turned on, the reflected light from each reflecting element at the first angle position is emitted toward the front of the unit via the projection lens, and when the second light source is turned on, the light is emitted to the second angle position. Since the reflected light from each reflecting element is emitted toward the front of the unit via the projection lens, the light irradiation using all the reflecting elements is performed by turning on the first light source and the second light source at the same time. Can be done. As a result, when the road surface drawing light distribution pattern is formed on the road surface in front of the vehicle, a complementary light distribution pattern surrounding the road surface drawing light distribution pattern can be formed at the same time.
  • the second light source is arranged at a position off the plane including the optical axis of the projection lens and the light emitting center of the first light source, the first light source reflected by each reflecting element at the second angular position It is possible to prevent the light from the second light source from reaching the position of the second light source and the light from the second light source reflected by each reflecting element at the first angle position from reaching the position of the first light source. Therefore, it is possible to prevent the first and second light sources and their peripheral structures from being damaged by heat, and to prevent stray light from being inadvertently generated from the peripheral structures of the first and second light sources. It is possible to prevent the light distribution function of the lighting equipment unit from being hindered.
  • a lamp unit provided with a reflective spatial light modulator attention is drawn to the surroundings by forming a light distribution pattern for road surface drawing without interfering with the light distribution function.
  • the function can be enhanced.
  • the vehicle lamp according to one aspect of the present disclosure has a configuration in which the first lamp unit and the second lamp unit are arranged in parallel, but the first lamp unit is reflected by the first space light modulator. Since the light from the first light source is irradiated toward the front of the lamp through the first projection lens, the spatial distribution of the reflected light is controlled in the first spatial light modulator. A light distribution pattern for drawing a road surface can be accurately formed on the road surface in front of the vehicle, thereby alerting the surroundings.
  • the second lamp unit is configured to irradiate the light from the second light source toward the front of the lamp via the second projection lens, a required light distribution pattern (for example, a head lamp) is applied by the irradiation light. Light distribution pattern, etc.) can be formed.
  • the first spatial light modulator is arranged in a state where the center positions of the plurality of first reflecting elements are displaced upward from the optical axis of the first projection lens.
  • various light distribution patterns including a light distribution pattern for drawing a road surface can be displayed on the vehicle lamp. Can be formed efficiently without impairing.
  • the lamp unit housed in the lamp chamber irradiates the light from the light source reflected by the spatial light modulator toward the front of the lamp through the projection lens. Therefore, by controlling the spatial distribution of the reflected light in the spatial light modulator, various light distribution patterns can be formed with high accuracy.
  • the lamp unit is provided with an adjustment mechanism for adjusting the relative positional relationship between the bracket supporting the spatial light modulator and the lens holder supporting the projection lens in the front-rear direction of the lamp. Since the mechanism is provided so as to be operable from outside the lamp room, the following effects can be obtained.
  • the focus of the projection optical system may deviate slightly from the original position in the front-rear direction of the lamp.
  • the adjustment mechanism from outside the lighting room to adjust the relative positional relationship between the bracket and the lens holder in the front-rear direction of the lighting fixture, the focus of the projection optical system can be adjusted to the original position. Therefore, this makes it possible to accurately form a light distribution pattern for drawing a road surface and the like.
  • FIG. 1 is a vertical cross-sectional view showing a vehicle lamp equipped with a lamp unit according to the first embodiment of the present disclosure.
  • FIG. 2 is a detailed view of a main part of FIG.
  • FIG. 3 is a view taken along the line III-III of FIG.
  • FIG. 4 is a detailed view of a main part of FIG.
  • FIG. 5 is a detailed view of a main part of FIG.
  • FIG. 6 is a diagram transparently showing a light distribution pattern formed by the irradiation light from the lamp unit.
  • FIG. 7 is a diagram transparently showing a light distribution pattern formed by irradiation light from the lamp unit according to the comparative example of the first embodiment.
  • FIG. 1 is a vertical cross-sectional view showing a vehicle lamp equipped with a lamp unit according to the first embodiment of the present disclosure.
  • FIG. 2 is a detailed view of a main part of FIG.
  • FIG. 3 is a view taken along the line III-III of FIG.
  • FIG. 4
  • FIG. 8 is a diagram showing a light distribution pattern formed by the irradiation light from the lamp unit as viewed from above.
  • FIG. 9 is a diagram showing a light distribution pattern formed by irradiation light from the lamp unit according to the comparative example when viewed from above.
  • FIG. 10 is a diagram substantially similar to FIG. 4, showing a first modification of the first embodiment.
  • FIG. 11 is a diagram substantially similar to FIG. 4, showing a second modification of the first embodiment.
  • FIG. 12 is a diagram similar to FIG. 6 showing the operation of the first modification.
  • FIG. 13 is a diagram similar to FIG. 6 showing the operation of the second modification.
  • FIG. 14 is a diagram substantially similar to FIG. 4, showing a third modification of the first embodiment.
  • FIG. 15 is a diagram substantially similar to FIG.
  • FIG. 16 is a side sectional view showing a vehicle lamp provided with the lamp unit according to the second embodiment of the present disclosure.
  • FIG. 17 is a detailed view of a main part of FIG.
  • FIG. 18 is a view taken along the line III-III of FIG.
  • FIG. 19 is a detailed view of a main part of FIG.
  • FIG. 20 is a diagram for explaining the operation of the second embodiment, and is substantially the same as FIG. 18.
  • FIG. 21 is a diagram transparently showing a light distribution pattern formed by the irradiation light from the lamp unit.
  • FIG. 22 is a diagram similar to FIG. 20, showing a first modification of the second embodiment.
  • FIG. 23 is a diagram similar to FIG. 20, showing a second modification of the second embodiment.
  • FIG. 20 is a diagram for explaining the operation of the lamp unit.
  • FIG. 24 is a diagram similar to FIG. 17, showing a third modification of the second embodiment.
  • FIG. 25 is a diagram similar to FIG. 17, showing a fourth modification of the second embodiment.
  • FIG. 26 is a front view showing a vehicle lamp according to the third embodiment of the present disclosure.
  • FIG. 27 is a cross-sectional view taken along the line II-II of FIG.
  • FIG. 28 is a cross-sectional view taken along the line III-III of FIG.
  • FIG. 29 is a detailed view of a main part of FIG. 27.
  • FIG. 30 is a view taken along the line VV of FIG. 29.
  • FIG. 31 is a diagram transparently showing a light distribution pattern formed by irradiation light from the first lamp unit of the vehicle lamp according to the third embodiment.
  • FIG. 31 is a diagram transparently showing a light distribution pattern formed by irradiation light from the first lamp unit of the vehicle lamp according to the third embodiment.
  • FIG. 32 is a diagram transparently showing a light distribution pattern formed by irradiation light from the second lighting equipment unit of the vehicle lighting equipment according to the third embodiment.
  • FIG. 33 is a diagram similar to FIG. 26 showing the appearance of the vehicle lamp according to the third embodiment.
  • FIG. 34 is a diagram showing the appearance of a vehicle lamp as a comparative example.
  • FIG. 35 is a diagram similar to FIG. 26 showing a first modification of the third embodiment.
  • FIG. 36 is a diagram similar to FIG. 32 showing the operation of the first modification of the third embodiment.
  • FIG. 37 is a diagram similar to FIG. 26 showing a second modification of the third embodiment.
  • FIG. 38 is a sectional view taken along line XII-XII of FIG. 37.
  • FIG. 39 is a vertical cross-sectional view showing a vehicle lamp according to a fourth embodiment of the present disclosure.
  • FIG. 40 is a view taken along the line II in FIG. 39.
  • FIG. 41 is a view taken along the line III in FIG. 39.
  • FIG. 42 is a detailed view of a main part of FIG. 39.
  • FIG. 43 is a perspective view showing a lamp unit of the vehicle lamp according to the fourth embodiment.
  • FIG. 44 is a diagram similar to FIG. 41 showing a vehicle lamp according to the first modification of the fourth embodiment.
  • FIG. 45 is a diagram similar to FIG. 40, showing a vehicle lamp according to a second modification of the fourth embodiment.
  • FIG. 1 is a vertical cross-sectional view showing a vehicle lamp 100 provided with a lamp unit 10 according to an embodiment of the present disclosure. Further, FIG. 2 is a detailed view of a main part of FIG. 1, and FIG. 3 is a view taken along the line III-III of FIG. Further, FIG. 4 is a detailed view of a main part of FIG.
  • the direction indicated by X is the "front of the unit”
  • the direction indicated by Y is the “left direction” orthogonal to the "front of the unit” (the “right direction” when viewed from the front of the unit)
  • the direction indicated by Z Is "upward”. The same applies to figures other than these.
  • the vehicle lamp 100 is a road surface drawing lamp provided at the front end of the vehicle.
  • the optical axis is adjusted so that the lamp unit 10 aligns the front-rear direction (that is, the unit front-rear direction) with the vehicle front-rear direction in the lamp chamber formed by the lamp body 102 and the translucent cover 104. It is configured to be housed in a broken state.
  • the lamp unit 10 includes a spatial light modulation unit 20, a light source side sub-assy 50, a lens-side sub-assy 70, and a bracket 40 that supports them.
  • the bracket 40 is a metal member (for example, made of aluminum die-cast) and is arranged so as to extend along a vertical plane orthogonal to the front-rear direction of the unit.
  • a shelf-shaped portion 40d extending toward the front of the unit is formed on the front surface of the bracket 40.
  • the lamp unit 10 is supported by the lamp body 102 in the bracket 40 via a mounting structure (not shown), and is configured to be tilted in the vertical direction and the horizontal direction with respect to the lamp body 102.
  • the spatial light modulation unit 20 includes a spatial light modulator 30, a support substrate 22 arranged on the rear side of the unit with respect to the spatial light modulator 30, and a heat sink 24 arranged on the rear side of the unit with respect to the support substrate 22. ing.
  • the support substrate 22 is formed to have a length extending below the heat sink 24.
  • the lens-side sub-assy 70 includes a projection lens 72 having an optical axis Ax extending in the front-rear direction of the unit and a lens holder 74 that supports the projection lens 72, and is supported by the bracket 40 at the rear end of the lens holder 74. ing.
  • the light source side sub-assy 50 includes a light source 52 and a condenser lens 54 that controls the light emitted from the light source 52 so as to be deflected toward the spatial light modulator 30.
  • the light source 52 and the condenser lens 54 are arranged below the optical axis Ax (specifically, at a position directly below the optical axis Ax).
  • the lamp unit 10 reflects the light from the light source 52 that has reached the spatial light modulator 30 via the condenser lens 54 by the spatial light modulator 30, and the lamp unit 10 via the projection lens 72.
  • a light distribution pattern for drawing characters, symbols, etc. on the road surface in front of the vehicle that is, a light distribution pattern for drawing the road surface
  • the spatial light modulator 30 is controlled based on a video signal or the like from an in-vehicle camera (not shown).
  • the spatial light modulator 30 is a digital micromirror device (DMD), and is a reflection control unit 30A, a housing portion 30B accommodating the reflection control unit 30A, and a light transmissive plate. It includes a 30C and a seal portion 30D.
  • the reflection control unit 30A a plurality of reflection elements (specifically, hundreds of thousands of minute mirrors) 30As are arranged in a matrix.
  • the light transmitting plate 30C is supported by the housing portion 30B in a state of being arranged on the front side of the unit with respect to the reflection control portion 30A.
  • the seal portion 30D has a configuration in which the light transmitting plate 30C is sealed to the housing portion 30B at the peripheral portion thereof.
  • the reflection control unit 30A is configured as a horizontally long rectangular region when viewed from the front of the unit. Further, the light transmitting plate 30C has a horizontally long rectangular outer shape that is slightly larger than the outer peripheral shape of the reflection control unit 30A.
  • the spatial light modulator 30 is arranged so that the reflection control unit 30A is located on the vertical plane orthogonal to the optical axis Ax at the rear focal point F of the projection lens 72.
  • the central axis Ax1 of the reflection control unit 30A is an axis that passes through the center positions of the plurality of reflection elements 30As.
  • the central axis Ax1 of the reflection control unit 30A is located at a position displaced upward with respect to the optical axis Ax (specifically, a position where the lower end edge of the reflection control unit 30A is slightly above the optical axis Ax).
  • the unit extends in the front-rear direction.
  • the spatial light modulator 30 controls the angle of the reflection surface of each of the plurality of reflection elements 30As constituting the reflection control unit 30A to determine the reflection direction of the light from the light source 52 that has reached each reflection element 30As. Can be switched selectively.
  • the first angular position that reflects the light from the light source 52 in the direction of the optical path R1 toward the projection lens 72 (the direction shown by the solid line in FIG. 2) and the direction deviating from the projection lens 72 (that is, the arrangement).
  • a second angular position that reflects in the direction of the optical path R2 (the direction indicated by the two-point chain line in FIG. 2) toward the direction that does not adversely affect the formation of the light pattern is selected.
  • the optical axis Ax of the projection lens 72 is displaced downward with respect to the central axis Ax1 of the reflection control unit 30A of the spatial light modulator 30, the light that reaches the projection lens 72 from the reflection control unit 30A can be received. As shown in FIG. 1, the light is emitted from the projection lens 72 toward the front of the unit as light slightly downward in the horizontal direction, whereby the light distribution pattern for road surface drawing and the complementary light distribution pattern are efficiently applied to the road surface in front of the vehicle. Can form.
  • FIG. 5 is a detailed view of a main part of FIG. 2, showing a detailed structure of the reflection control unit 30A.
  • each reflecting element 30As constituting the reflection control unit 30A is configured to be able to rotate around a horizontal axis extending in the left-right direction.
  • each reflecting element 30As is incident from diagonally below with respect to a predetermined angle (for example, about 12 °) downward rotation with respect to a vertical plane orthogonal to the central axis Ax1 of the reflection control unit 30A.
  • the light from the light source 52 is reflected toward the front of the unit as slightly upward light (light of the optical path R1).
  • each reflecting element 30As rotates upward by a predetermined angle (for example, about 12 °) with respect to the vertical plane, and the light from the light source 52 is considerably upward light (light in the optical path R2). Reflect toward the front of the unit.
  • a predetermined angle for example, about 12 °
  • Switching between the first angular position and the second angular position controls energization of electrodes (not shown) arranged in the vicinity of a member (not shown) that rotatably supports each reflecting element 30As. It is done by doing. Then, in the neutral state in which the energization is not performed, the reflecting elements 30As are configured so that their reflecting surfaces are arranged flush with each other along the vertical plane orthogonal to the central axis Ax1.
  • FIG. 5 shows a state in which the reflecting element 30As located in the vicinity of the central axis Ax1 of the reflection control unit 30A is in the first angular position, and the reflecting element 30As located in the lower region thereof is in the second angular position. Is shown.
  • the support substrate 22 is arranged so as to extend along a vertical plane orthogonal to the front-rear direction of the unit (that is, a vertical plane orthogonal to the optical axis Ax and the central axis Ax1), and is arranged on the front surface thereof.
  • a conductive pattern (not shown) is formed.
  • the support substrate 22 supports the peripheral edge of the housing portion 30B of the spatial light modulator 30 from the rear side of the unit via the socket 26. As a result, the spatial light modulator 30 is electrically connected to the support substrate 22.
  • the spatial light modulator 30 is supported from both sides in the front-rear direction of the unit by the bracket 40 and the heat sink 24.
  • the heat sink 24 is arranged so as to extend along a vertical plane orthogonal to the front-rear direction of the unit, and a protrusion 24a projecting in a prismatic shape toward the front of the unit is formed on the front surface thereof, and the heat sink 24 is formed on the rear surface thereof.
  • a plurality of heat radiating fins 24b extending toward the rear of the unit are formed.
  • the heat sink 24 is brought into contact with the central portion of the housing portion 30B of the spatial optical modulator 30 on the tip surface of the protruding portion 24a.
  • the bracket 40 is formed with a horizontally long rectangular opening 40a that surrounds the light transmissive plate 30C of the spatial light modulator 30.
  • the opening 40a has an inner peripheral surface shape chamfered so as to expand toward the front of the unit over the entire circumference thereof.
  • a light-shielding member 32 and a gasket 34 are arranged between the bracket 40 and the spatial light modulator 30.
  • the light-shielding member 32 is a member for blocking a part of the reflected light from the reflection control unit 30A, and is configured as a light-shielding plate having an opening 32a centered on the central axis Ax1 of the reflection control unit 30A. ing.
  • the light-shielding member 32 is made of an aluminum plate having a thickness thinner than that of the light-transmitting plate 30C of the spatial light modulator 30, and its surface is treated with black alumite.
  • the light-shielding member 32 has an outer peripheral surface shape larger than that of the housing portion 30B of the spatial light modulator 30, and is slightly separated from the light-transmitting plate 30C toward the front side of the unit in a state of surface contact with the rear surface of the bracket 40. It is placed in the same position.
  • the opening 32a of the light-shielding member 32 is formed to have an opening shape smaller than the outer peripheral surface shape of the light-transmitting plate 30C so as to partially overlap the reflection control unit 30A in the front view of the unit.
  • the opening 32a has an opening shape in which the isosceles trapezoid is inverted upside down, and most of the region of the reflection control unit 30A is exposed when the unit is viewed from the front, and the wedge-shaped regions on both the left and right sides thereof are exposed. It is formed to shield. That is, the light-shielding member 32 has an upper left-right width of the non-light-shielding region that does not block the reflected light from the reflection control unit 30A because the side edge 32a1 of the opening 32a is inclined downward toward the center. It is formed so as to be narrower at the lower part than the lower part.
  • the gasket 34 is made of silicone rubber and is interposed between the light-shielding member 32 and the housing portion 30B of the spatial light modulator 30.
  • the front surface of the gasket 34 is formed to be flat, and the gasket 34 is in surface contact with the light-shielding member 32. Further, the gasket 34 has an outer peripheral surface shape slightly smaller than the outer peripheral surface shape of the light-shielding member 32, and has an inner peripheral surface shape slightly smaller than the outer peripheral surface shape of the seal portion 30D of the spatial light modulator 30. Have. Further, in the gasket 34, a portion located on the front side of the unit with respect to the housing portion 30B is formed as a thin-walled portion, and a portion surrounding the housing portion 30B is formed as a thick-walled portion.
  • the light source 52 is composed of a light emitting diode that emits green light, and is supported by the light source side holder 60 via a support substrate 56.
  • the light source side holder 60 is supported by the shelf-shaped portion 40d of the bracket 40.
  • the condenser lens 54 is a biconvex lens and is supported by the light source side holder 60 via the lens holder 58.
  • the condenser lens 54 is arranged at a position where the light emitted from the light source 52 converges on the reflection control unit 30A of the spatial light modulator 30.
  • the projection lens 72 is composed of three first lens 72A, a second lens 72B, and a third lens 72C arranged side by side in the front-rear direction of the unit on the optical axis Ax.
  • the first lens 72A located on the front side of the unit is configured as a plano-convex lens that bulges toward the front of the unit.
  • the second lens 72B located at the center is configured as a biconcave lens.
  • the third lens 72C located on the rearmost side of the unit is configured as a biconvex lens.
  • the first lens 72A is composed of a resin lens (specifically, an acrylic resin lens).
  • the second lens 72B is composed of a resin lens (specifically, a polycarbonate resin lens).
  • the third lens 72C is made of a glass lens.
  • the first lens 72A and the second lens 72B have a rectangular outer peripheral shape having substantially the same size when viewed from the front of the unit.
  • the third lens 72C has a circular outer peripheral shape larger than that of the first lens 72A and the second lens 72B when viewed from the front of the unit, and an outer peripheral flange portion 72Ca is formed on the outer peripheral edge portion thereof.
  • the first lens 72A to the third lens 72C are supported by a common lens holder 74.
  • the lens holder 74 is a member made of metal (for example, made of aluminum die-cast), the front region 74A thereof is formed so as to extend in a square cylinder shape about the optical axis Ax, and the rear region 74B is light. It is formed so as to extend in a cylindrical shape with the axis Ax as the center. The lower end of the rear region 74B of the lens holder 74 is cut out.
  • the first metal fitting 76A is attached to the lens holder 74 from the front side of the unit, whereby the first lens 72A and the second lens 72B are fixed to the lens holder 74.
  • a plurality of clips 76B are attached from the outer peripheral side of the third lens 72C in a state where the second metal fitting 76C is pressed against the outer peripheral flange portion 72Ca from the rear side of the unit, whereby the lens holder It is fixed at 74.
  • FIG. 6 is a perspective view showing a light distribution pattern formed on a virtual vertical screen arranged at a position 25 m in front of the vehicle by the irradiation light from the lighting equipment unit 10 according to the present embodiment.
  • the light distribution pattern shown in FIG. 6 is a road surface drawing light distribution pattern PA, which is formed together with (or independently of) a low beam light distribution pattern PL formed by irradiation light from another lamp unit (not shown). It has become like.
  • the light distribution pattern PL for low beam Before explaining the light distribution pattern PA for road surface drawing, the light distribution pattern PL for low beam will be described.
  • the low beam light distribution pattern PL is a left light distribution low beam light distribution pattern, and has cut-off lines CL1 and CL2 at the upper end edge thereof.
  • the cut-off lines CL1 and CL2 extend horizontally with a VV line that passes vertically through the HV, which is the vanishing point in the front direction of the lamp, in the left-right direction, and face each other on the right side of the VV line.
  • the lane side portion is formed as the lower cut offline CL1
  • the own lane side portion on the left side of the VV line is formed as the upper cut offline CL2 which is stepped up from the lower cut offline CL1 via the inclined portion. Has been done.
  • the elbow point E which is the intersection of the lower cut-off line CL1 and the VV line, is located about 0.5 to 0.6 ° below the HV.
  • the road surface drawing light distribution pattern PA is a light distribution pattern for drawing a road surface to call attention to the surroundings, and is formed as a light distribution pattern for drawing characters, symbols, etc. on the road surface in front of the vehicle.
  • the road surface drawing light distribution pattern PA shown in FIG. 6 is formed as an arrow-shaped light distribution pattern facing the front direction of the vehicle.
  • the light distribution pattern PA for road surface drawing includes a part of the plurality of reflecting elements 30As constituting the reflection control unit 30A of the spatial light modulator 30 (for example, the reflecting element 30As located in the region set in the arrow shape). It is formed by rotating the light to a first angular position and directing the light from the light source 52 reflected by the reflecting elements 30As toward the projection lens 72. At that time, since the light source 52 is composed of a light emitting diode that emits green light, the road surface drawing light distribution pattern PA is also formed as a green light distribution pattern.
  • the trapezoidal region Z1 surrounded by a thin solid line is the maximum projected onto the road surface in front of the vehicle when the plurality of reflecting elements 30As constituting the reflection control unit 30A are all at the first angle position. It is a projection area and shows a range in which various light distribution patterns PA for road surface drawing can be formed.
  • FIG. 8 is a diagram showing a state in which the light distribution pattern PA for drawing the road surface and the maximum projection area Z1 are viewed from above together with the own vehicle 2.
  • the maximum projection region Z1 is formed as a rectangular region in the top view, and both side edges thereof extend substantially parallel to the road shoulder and the center line.
  • the peripheral area surrounding the road surface drawing light distribution pattern PA is slightly brighter than the areas other than the maximum projection area Z1. This is because when the reflected light from the reflection control unit 30A passes through the light transmitting plate 30C, surface reflection occurs in the light transmitting plate 30C, and therefore the reflected light from the reflecting element 30As at the first angle position This is because stray light other than the above is slightly emitted toward the front of the unit via the projection lens 72.
  • FIGS. 7 and 9 show, as a comparative example of the above embodiment, the maximum projection region Z0 when the spatial light modulation unit 20 does not include the light-shielding member 32 together with the light distribution pattern PA for road surface drawing. It is the same figure as FIG. 6 and FIG.
  • the maximum projection region Z0 is formed as an inverted trapezoidal region in top view as a projection image of the entire reflection control unit 30A, and its both side edges are directed from the short-distance region to the long-distance region. It extends so as to spread.
  • the peripheral area surrounding the road surface drawing light distribution pattern PA is dimly irradiated in a state where it intersects the road shoulder and the center line, which causes a sense of discomfort to the driver or the like. Become.
  • the maximum projection region Z1 shown in FIGS. 6 and 8 surrounds the road surface drawing light distribution pattern PA in the maximum projection region Z1 because both side edges extend substantially parallel to the road shoulder and the center line. Even though the peripheral area is dimly illuminated, this does not give a sense of discomfort to the driver or the like.
  • the maximum projection area Z0 is indicated by a two-dot chain line in FIGS. 6 and 8
  • the maximum projection area Z1 is indicated by a two-dot chain line in FIGS. 7 and 9.
  • the lamp unit 10 is configured to irradiate the light from the light source 52 reflected by the spatial light modulator 30 toward the front of the unit via the projection lens 72, the spatial light modulator.
  • the spatial light modulator By controlling the spatial distribution of the reflected light in No. 30, various light distribution patterns PA for road surface drawing can be formed with high accuracy.
  • the spatial light modulator 30 includes a reflection control unit 30A in which a plurality of reflection elements 30As configured so as to selectively adopt a first angular position and a second angular position are arranged.
  • a light-shielding member 32 that blocks a part of the reflected light from the reflection control unit 30A is arranged on the front side of the unit.
  • the maximum projection area Z1 actually projected on the road surface in front of the vehicle is set to an outer shape corresponding to the outer shape of the non-light-shielding area (that is, the area where the reflected light from the reflection control unit 30A is not blocked by the light-shielding member 32). be able to.
  • the outer shape of the maximum projection area Z1 is changed from the inverted trapezoidal shape in the top view. It can be made closer to a rectangular shape, so that both side edges of the maximum projection area Z1 can be extended in a direction substantially along the road shoulder or the center line.
  • the light distribution pattern PA for road surface drawing in the maximum projection region Z1 having an outer shape close to such a rectangular shape, it is possible to prevent the driver or the like from feeling uncomfortable. can.
  • the light distribution pattern PA for road surface drawing can be formed without giving a sense of discomfort to the driver or the like.
  • the spatial light modulator 30 is supported by the housing portion 30B accommodating the reflection control unit 30A and the housing portion 30B in a state of being arranged in front of the unit from the reflection control unit 30A. Since the light-transmitting plate 30C is provided and the light-shielding member 32 is arranged on the front side of the unit with respect to the light-transmitting plate 30C, the following effects can be obtained.
  • the road surface drawing light distribution pattern PA is formed on the road surface in front of the vehicle, and the peripheral region (that is, the region other than the road surface drawing light distribution pattern PA in the maximum projection region Z1) is illuminated dimly.
  • the presence of the light-shielding member 32 extends both side edges of the peripheral region in a direction substantially along the road shoulder or the center line, so that the driver or the like can use the light-shielding member 32. It is possible to prevent discomfort.
  • the light-shielding member 32 is composed of a light-shielding plate having an opening 32a having the shape of a non-light-shielding region, the front-rear width of the light-shielding member 32 can be reduced. As a result, the reflected light from the reflection control unit 30A toward the projection lens 72 can be prevented from being unnecessarily blocked.
  • the outer shape of the maximum projection region Z1 can be made into a shape closer to a rectangular shape in the top view, and both side ends thereof. It is easy to make the edge along the shoulder or center line.
  • the lamp unit 10 according to the present embodiment is configured as a vehicle-mounted lamp unit, the incident angle of the irradiation light from the lamp unit 10 with respect to the road surface becomes large, so that the configuration of the present embodiment may be adopted. Especially effective.
  • the seal portion 30D of the spatial light modulator 30 is covered from the front side of the unit by the light-shielding member 32, sunlight or the like passes through the projection lens 72 at an angle converging on the seal portion 30D. Even in such a case, the convergent light can be shielded by the light-shielding member 32, whereby it is possible to prevent the seal portion 30D from being melted.
  • the lamp unit 10 according to the present embodiment is configured as an in-vehicle lamp unit, and is formed when the incident angle of the irradiation light from the lamp unit 10 with respect to the road surface is large and the light-shielding member 32 is not arranged. Since the outer shape of the maximum projection region Z0 to be formed becomes an inverted trapezoidal shape that deviates greatly from the rectangular shape in the top view, it is particularly effective to adopt the configuration of the present embodiment.
  • the light source 52 has been described as being composed of a light emitting diode that emits green light, but the light source 52 may be configured to have a light emitting color such as blue or white in addition to green. be.
  • the reflection control unit 30A of the spatial light modulator 30 has been described as being arranged so as to be located on a vertical plane orthogonal to the optical axis Ax of the projection lens 72, but is orthogonal to the optical axis Ax. It is also possible to configure the structure so that it is tilted with respect to the vertical plane (for example, tilted forward).
  • the central axis Ax1 of the spatial light modulator 30 is displaced upward with respect to the optical axis Ax of the projection lens 72, but the central axis Ax1 and the optical axis Ax coincide with each other. It is also possible to adopt the configuration that is used.
  • the light source side sub-assy 50 has been described as being composed of the light source 52 and the condenser lens 54 arranged at a position directly below the central axis Ax1, but other configurations are adopted. Is also possible. For example, it is possible to adopt a configuration in which two sets of light sources 52 and a condenser lens 54 are arranged on both the left and right sides at a position directly below the central axis Ax1, and a reflector is arranged instead of the condenser lens 54. It is also possible to adopt a different configuration.
  • a set of the light source 52 and the condenser lens 54 are arranged at a position directly below the central axis Ax1, but other configurations are adopted. At that time, it is also possible to have two sets of the light source 52 and the condenser lens 54 arranged on the left and right sides so as to sandwich the position directly below the central axis Ax1.
  • the non-light-shielding area is set in an isosceles trapezoidal shape, but it is determined that the discomfort due to the intersection with the shoulder or the center line occurs only in one of them. It is also possible to set the shape of the non-light-shielding region to be a trapezoidal shape in which only one of the left and right sides is inclined.
  • the lighting equipment unit 10 has been described as being an in-vehicle lighting equipment unit, but it is used for purposes other than in-vehicle equipment (for example, a street light lighting equipment configured to draw from diagonally above the road surface). It can also be used for units, etc.).
  • FIG. 10 is a diagram substantially similar to that of FIG. 4, showing the lamp unit 110 according to the present modification.
  • the basic configuration of this modification is the same as that of the first embodiment, but the configuration of the light-shielding member 132 is partially different from that of the first embodiment.
  • the light-shielding member 132 of this modification is also formed so that the left-right width of the non-light-shielding region that does not block the reflected light from the reflection control unit 30A is narrower in the lower part than in the upper part, but the non-light-shielding region is formed.
  • the shape of the opening 132a is partially different from that of the first embodiment.
  • both side edge 132a1 of the opening 132a extends in the vertical direction, and the lateral width thereof is formed in a stepped shape so as to be narrower in the lower half than in the upper half.
  • FIG. 12 is a perspective view showing the road surface drawing light distribution pattern PA and the maximum projection area Z2 formed on the virtual vertical screen by the irradiation light from the lamp unit 110 according to the present modification.
  • the maximum projection area Z2 is formed in a shape in which the left-right width of the maximum projection area Z0 shown in FIG. 7 is narrowed in a stepwise manner in a long distance region.
  • the maximum projection area Z2 extends in the direction in which both side edges intersect the road shoulder and the center line, but the left and right widths are narrowed in the long distance area, so that the maximum projection area Z2 does not intersect the road shoulder and the center line.
  • FIG. 11 is a diagram substantially similar to that of FIG. 4, showing the lamp unit 210 according to the present modification.
  • the basic configuration of this modification is the same as that of the first embodiment, but the configuration of the light-shielding member 232 is partially different from that of the first embodiment.
  • the light-shielding member 232 of this modification is also formed so that the left-right width of the non-light-shielding region that does not block the reflected light from the reflection control unit 30A is narrower in the lower part than in the upper part, but the non-light-shielding region is formed.
  • the shape of the opening 232a is partially different from that of the first embodiment.
  • both side edge edges 232a1 are inclined downward toward the center, but the lower end edge 232a2 is formed in an arc shape.
  • the lowermost end position of the lower end edge 232a2 is set to substantially the same position as the lower end edge of the reflection control unit 30A.
  • FIG. 13 is a perspective view of the road surface drawing light distribution pattern PA and the maximum projection area Z3 formed on the virtual vertical screen by the irradiation light from the lamp unit 210 according to the present modification.
  • the maximum projection region Z3 is formed in a shape in which a pair of left and right corner portions of the tip portion of the maximum projection region Z1 shown in FIG. 6 are cut into an arc shape.
  • the maximum projection area Z3 is a case where the vehicle travel path is curved because both side edge edges extend substantially parallel to the road shoulder and the center line and the tip edge thereof is formed in an arc shape. Even if there is, it is possible to prevent the peripheral region surrounding the road surface drawing light distribution pattern PA from being dimly illuminated while intersecting the road shoulder and the center line. As a result, it is possible to prevent the driver and the like from feeling uncomfortable not only when the vehicle is going straight but also when the vehicle is turning.
  • FIG. 14 is a diagram substantially similar to that of FIG. 4, showing the lamp unit 310 according to the present modification.
  • the basic configuration of this modification is the same as that of the first embodiment, but the configuration of the light-shielding member 334 is partially different from that of the first embodiment.
  • the light-shielding member 334 of the present modification is formed so that the inner peripheral surface shape thereof is the same as the opening 32a of the light-shielding member 32 of the first embodiment in the configuration of the gasket 34 of the first embodiment. It has become.
  • the lamp unit 310 according to this modification does not have a member corresponding to the light-shielding member 32 of the first embodiment.
  • the light-shielding member 334 of this modification has a left-right width of a non-light-shielding region that does not block the reflected light from the reflection control unit 30A because the side edge 334a1 of the opening 334a is inclined downward toward the center. Is formed so as to be narrower at the lower part than at the upper part.
  • the number of parts can be reduced by the amount of the member corresponding to the light-shielding member 32 of the first embodiment.
  • the projection lens 72 is transmitted at an angle at which sunlight or the like converges on the seal portion 30D. Even if this happens, the focused light can be shielded by the light-shielding member 334, which can prevent the seal portion 30D from being melted and damaged.
  • the member corresponding to the gasket 34 of the first embodiment has been described as the light-shielding member 334, but in addition to this, the opening 40a of the bracket 40 of the first embodiment has been described. It is also possible to have a function as a light-shielding member by making the opening shape of the light-shielding member 32 the same as the opening 32a of the light-shielding member 32 of the first embodiment.
  • FIG. 15 is a diagram substantially similar to that of FIG. 4, showing the lamp unit 410 according to the present modification.
  • the basic configuration of this modification is the same as that of the first embodiment, but the configuration of the light-shielding member is partially different from that of the first embodiment.
  • the light-shielding member of this modification is composed of a pair of left and right light-shielding stickers 436 attached to the light-transmitting plate 30C of the spatial light modulator 30.
  • a pair of left and right light-shielding stickers 436 are attached to the light-transmitting plate 30C with the left and right sides of the reflection control unit 30A shielded in a wedge shape when viewed from the front of the unit. That is, in the pair of left and right light-shielding stickers 436, the inner edge 436a is inclined downward toward the center, so that the left-right width of the non-light-shielding region that does not block the reflected light from the reflection control unit 30A is larger than the upper part. Is also formed to be narrower at the bottom.
  • the lamp unit 410 has a configuration in which a plate-shaped member 432 is provided as a member corresponding to the light-shielding member 32 of the first embodiment, and the opening 432a of the plate-shaped member 432 has a structure. It has a horizontally long rectangular opening shape that is slightly smaller than the inner peripheral surface of the gasket 34, and is formed so as to surround a pair of left and right light-shielding seals 436. Therefore, this plate-shaped member 432 does not have a function of blocking the reflected light from the reflection control unit 30A.
  • a part of the reflected light from the reflection control unit 30A can be shielded at a position closer to the reflection control unit 30A, whereby the light distribution pattern PA for road surface drawing is formed.
  • the outer shape of the maximum projection region Z1 that can be formed can be made clear.
  • the light-shielding member is composed of a pair of left-right light-shielding stickers 436.
  • a light-shielding film By applying a light-shielding film to an area substantially similar to the area to which the light-shielding sticker 436 is attached, it is possible to provide a function as a light-shielding member.
  • FIG. 16 is a side sectional view showing a vehicle lamp 1100 including the lamp unit 1010 according to the second embodiment of the present disclosure. Further, FIG. 17 is a detailed view of a main part of FIG. 16, and FIG. 18 is a view taken along the line III-III of FIG.
  • the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the vehicle lamp 1100 is a road surface drawing lamp provided at the front end of the vehicle, and the lamp unit 1010 is placed in the front-rear direction (that is, the unit front-rear direction) in the lighting chamber formed by the lamp body 102 and the translucent cover 104. ) Is housed in a state where the optical axis is adjusted so as to match the front-rear direction of the vehicle.
  • the lamp unit 1010 has a configuration including a spatial light modulation unit 20, a light source side sub-assy 1050, a lens-side sub-assy 70, and a bracket 40 that supports them.
  • the bracket 40 is a metal member (for example, made of aluminum die-cast) and is arranged so as to extend along a vertical plane orthogonal to the front-rear direction of the unit, and extends toward the front of the unit at two locations on the front surface thereof.
  • a shelf-shaped portion 40d is formed.
  • the lamp unit 1010 is supported by the lamp body 102 via a mounting structure (not shown) in the bracket 40, and is configured to be tilted in the vertical direction and the horizontal direction with respect to the lamp body 102.
  • the light source side sub-assie 1050 has a first lens 54A and a second lens 54A and a second light source 52A and a second light source 52B that deflect and control the emitted light from the first light source 52A and the second light source 52B and the first light source 52A and the second light source 52B toward the spatial light modulator 30. It is equipped with a lens 54B.
  • the first light source 52A and the first lens 54A are arranged below the optical axis Ax (specifically, a position directly below the optical axis Ax), and the second light source 52B and the second lens 54B are arranged on the optical axis. It is arranged on the upper side of Ax (specifically, a position inclined diagonally upward to the right by about 20 to 40 ° from the optical axis Ax).
  • the lamp unit 1010 is a unit that reflects light from a first light source 52A that has reached the spatial light modulator 30 via the first lens 54A by the spatial light modulator 30 and passes through the projection lens 72. By irradiating toward the front, a light distribution pattern for drawing characters, symbols, etc. on the road surface in front of the vehicle (that is, a light distribution pattern for drawing the road surface) can be formed.
  • the lamp unit 1010 reflects the light from the second light source 52B that has reached the spatial light modulator 30 via the second lens 54B by the spatial light modulator 30 and passes through the projection lens 72.
  • a complementary light distribution pattern surrounding the road surface drawing light distribution pattern can be formed on the road surface in front of the vehicle.
  • the spatial light modulator 30 is controlled from the first light source 52A and the second light source 52B that have reached each of the reflection elements 30As by controlling the angle of the reflection surface of each of the plurality of reflection elements 30As constituting the reflection control unit 30A.
  • the light reflection direction can be selectively switched.
  • the first angular position that reflects the light from the first light source 52A located below the optical axis Ax in the direction of the optical path R1 toward the projection lens 72 (the direction shown by the solid line in FIG. 17).
  • the second angular position that reflects in the direction of the optical path R2 (the direction indicated by the two-point chain line in FIG. 17) toward the direction deviating from the projection lens 72 (that is, the direction that does not adversely affect the formation of the light distribution pattern). Be selected.
  • the light from the second light source 52B located above the optical axis Ax is in the direction of the optical path R3 in the direction deviated from the projection lens 72 when each reflecting element 30As is in the first angular position (FIG.
  • each reflecting element 30As is in the second angular position, it is reflected in the direction shown by the solid line in 17), and the light from the second light source 52B is in the direction of the optical path R4 toward the projection lens 72 (in the two-point chain line in FIG. 17). It reflects in the direction shown).
  • FIG. 19 is a detailed view of a main part of FIG. 17 showing a detailed structure of the reflection control unit 30A, and is a diagram showing an optical path of light from the second light source 52B.
  • the optical paths R1 and R2 of the light from the first light source 52A are the same as the optical paths R1 and R2 of the light from the light source 52 shown in FIG.
  • each reflecting element 30As reflects the light from the second light source 52B incident from diagonally above toward the front of the unit as considerably downward light (light of the optical path R3).
  • the light from the second light source 52B is reflected toward the front of the unit as slightly downward light (light of the optical path R4).
  • protrusions 40b are formed at three positions surrounding the opening 40a so as to project in a columnar shape toward the rear of the unit, and further on the outer peripheral side thereof, the protrusions 40b project toward the rear of the unit.
  • the annular flange portion 40c is formed so as to extend in a horizontally long rectangular shape.
  • the tip surfaces of the three protruding portions 40b are in contact with the front surface of the housing portion 30B of the spatial light modulator 30, and at this time, the annular flange portion 40c surrounds the spatial light modulator 30 all around. It is designed to cover over.
  • the first light source 52A is composed of a light emitting diode that emits yellow light.
  • the first light source 52A is supported by a light source side holder 60A via a support substrate 56A, and the light source side holder 60A is supported by a shelf-shaped portion 40d (see FIG. 17) of the bracket 40.
  • the first lens 54A is a biconvex lens and is supported by the light source side holder 60A via the lens holder 58A.
  • the first lens 54A is arranged at a position where the light emitted from the first light source 52A converges on the reflection control unit 30A of the spatial light modulator 30.
  • the second light source 52B is composed of a light emitting diode that emits blue light.
  • the second light source 52B is supported by the light source side holder 60B via the support substrate 56B, and the light source side holder 60B is supported by the shelf-shaped portion 40d of the bracket 40.
  • the second lens 54B is a biconvex lens and is supported by the light source side holder 60B via the lens holder 58B.
  • the second lens 54B is arranged at a position where the light emitted from the second light source 52B converges on the reflection control unit 30A of the spatial light modulator 30.
  • FIG. 20 is a diagram substantially similar to FIG. 18 showing the reflection directions of light from the first light source 52A and the second light source 52B incident on one reflecting element 30As at the first angular position.
  • the first light source 52A and the first lens 54A are arranged at positions directly below the optical axis Ax, the first light source that reaches the spatial light modulator 30 via the first lens 54A.
  • the light from 52A is reflected in a direction substantially directly above the optical axis Ax.
  • the light from the first light source 52A reflected by the reflecting element 30As is projected as a slightly upward light as shown by the solid optical path R1. Head toward the third lens 72C of 72.
  • the light from the first light source 52A reflected by the reflecting element 30As is the second light source 52B as shown by the optical path R2 of the two-point chain line.
  • its peripheral structure that is, the second lens 54B, the support substrate 56B, the lens holder 58B, and the light source side holder 60B
  • the rear region 74B see FIG. 17
  • the second light source 52B and the second lens 54B are located diagonally upward to the right with respect to the optical axis Ax, the second light source 52B that reaches the spatial light modulator 30 via the second lens 54B The light is reflected diagonally downward to the left.
  • the light from the second light source 52B reflected by the reflecting element 30As is the first light source 52A and its surroundings as shown by the solid optical path R3. Without reaching the structure (ie, the first lens 54A, the support substrate 56A, the lens holder 58A and the light source side holder 60A), the light is directed toward the rear region 74B (see FIG. 17) of the lens holder 74 as considerably downward light.
  • the light from the second light source 52B reflected by the reflecting element 30As is slightly downward light as shown by the optical path R4 of the two-point chain line.
  • the third lens 72C of the projection lens 72 To the third lens 72C of the projection lens 72.
  • FIG. 21 is a perspective view showing a light distribution pattern formed on a virtual vertical screen arranged at a position 25 m in front of the vehicle by the irradiation light from the vehicle lamp 1100.
  • the light distribution pattern shown in FIG. 21 is a road surface drawing light distribution pattern PA and a complementary light distribution pattern PB, together with a low beam light distribution pattern PL formed by irradiation light from other vehicle lamps (not shown). It is designed to be formed (or independently).
  • the road surface drawing light distribution pattern PA is a light distribution pattern for drawing a road surface to call attention to the surroundings, and is formed as a light distribution pattern for drawing characters, symbols, etc. on the road surface in front of the vehicle.
  • the road surface drawing light distribution pattern PA shown in FIG. 21 is formed as an arrow-shaped light distribution pattern facing the front direction of the vehicle.
  • the light distribution pattern PA for road surface drawing includes a part of the plurality of reflecting elements 30As constituting the reflection control unit 30A of the spatial light modulator 30 (for example, the reflecting element 30As located in the region set in the arrow shape). It is formed by rotating the light to a first angular position and directing the light from the first light source 52A reflected by the reflecting elements 30As toward the projection lens 72. At that time, since the first light source 52A is composed of a light emitting diode that emits yellow light, the road surface drawing light distribution pattern PA is also formed as a yellow light distribution pattern.
  • the complementary light distribution pattern PB is formed as a light distribution pattern surrounding the road surface drawing light distribution pattern PA.
  • This complementary light distribution pattern PB is a reflection element 30As (that is, a second angle) that does not contribute to the formation of the road surface drawing light distribution pattern PA among the plurality of reflection elements 30As constituting the reflection control unit 30A of the spatial light modulator 30. It is formed by directing the light from the second light source 52B reflected by the reflecting element 30As) that is rotated to the position toward the projection lens 72, and its outer shape is the rectangular outer shape of the reflection control unit 30A. It is projected on the road surface ahead. At that time, since the second light source 52B is composed of a light emitting diode that emits blue light, the complementary light distribution pattern PB is also formed as a blue light distribution pattern. Then, the presence of the road surface drawing light distribution pattern PA is emphasized by surrounding the yellow road surface drawing light distribution pattern PA with the blue complementary light distribution pattern PB.
  • the lamp unit 1010 is configured to irradiate the light from the first light source 52A reflected by the spatial light modulator 30 toward the front of the unit via the projection lens 72, the spatial light is configured.
  • various road surface drawing light distribution patterns PA can be formed with high accuracy.
  • the spatial light modulator 30 includes a plurality of reflecting elements 30As configured so that the first angular position and the second angular position can be selectively taken, and the first light source 52A is used as the light source.
  • the first light source 52A is provided with a second light source 52B, and the light from the first light source 52A is reflected toward the projection lens 72 by each reflecting element 30As at the first angle position, and the second light source 52A is provided.
  • Each reflecting element 30As at the angular position is arranged at a position where the light from the second light source 52B is reflected at the position where the light from the second light source 52B is reflected in the direction away from the projection lens 72. Since each reflecting element 30As reflects toward the projection lens 72 and each reflecting element 30As at the first angle position reflects toward the projection lens 72, it is arranged as follows. It is possible to obtain various effects.
  • the first light source 52A when the first light source 52A is turned on, the reflected light from each reflecting element 30As at the first angular position is emitted toward the front of the unit via the projection lens 72, and when the second light source 52B is turned on, the second light source 52B is turned on. Since the reflected light from each reflecting element 30As at the angle position of is emitted toward the front of the unit via the projection lens 72, all the reflecting elements are turned on at the same time by turning on the first and second light sources 52A and 52B at the same time. Light irradiation using 30 As can be performed.
  • the road surface drawing light distribution pattern PA when the road surface drawing light distribution pattern PA is formed on the road surface in front of the vehicle, the complementary light distribution pattern PB surrounding the road surface drawing light distribution pattern PA can be formed at the same time. Therefore, by setting the brightness and emission color of the first light source 52A and the second light source 52B to be different from each other, the road surface drawing is performed as compared with the case where only the road surface drawing light distribution pattern PA is formed on the road surface in front of the vehicle. The existence of the light distribution pattern PA can be clarified, and thereby the function of calling attention to the surroundings can be enhanced.
  • the second light source 52B is arranged at a position off the plane including the optical axis Ax of the projection lens 72 and the light emitting center of the first light source 52A, it is reflected by each reflecting element 30As at the second angular position.
  • the light from the first light source 52A reaches the position of the second light source 52B, and the light from the second light source 52B reflected by each reflecting element 30As at the first angle position reaches the position of the first light source 52A. You can avoid doing it.
  • the surroundings are formed by forming the light distribution pattern PA for road surface drawing without disturbing the light distribution function. It is possible to enhance the function of calling attention to.
  • the left and right sides of the projection lens 72 are arranged. Light irradiation using the central region of the direction can be performed, which makes it possible to easily form the light distribution pattern PA for road surface drawing and the complementary light distribution pattern PB as a light distribution pattern having uniform brightness.
  • the road surface drawing light distribution pattern PA and the complementary light distribution pattern PB have different colors. Can be formed. Therefore, the existence of the light distribution pattern PA for drawing the road surface formed on the road surface in front of the vehicle can be further clarified, and thereby the function of calling attention to the surroundings can be further enhanced.
  • the central axis Ax1 of the spatial optical modulator 30 (that is, the axis passing through the central positions of the plurality of reflecting elements 30As) is displaced upward with respect to the optical axis Ax of the projection lens 72.
  • the light from the first light source 52A and the second light source 52B reflected by the spatial light modulator 30 can be emitted from the projection lens 72 as diagonally downward light, whereby the light distribution pattern PA for road surface drawing and the light distribution pattern PA for road surface drawing and The complementary light distribution pattern PB can be efficiently formed on the road surface in front of the vehicle.
  • the first light source 52A is composed of a light emitting diode that emits yellow light and the second light source 52B is composed of a light emitting diode that emits blue light.
  • the second light source 52B may have a configuration having a light emitting color such as green or white in addition to yellow or blue, and may be appropriately combined to have a configuration having different light emitting colors.
  • the light distribution pattern PA for road surface drawing and the complementary light distribution pattern PB have different brightness. It is also possible to form a structure with a light source.
  • the central axis Ax1 of the spatial light modulator 30 is displaced upward with respect to the optical axis Ax of the projection lens 72, but the central axis Ax1 and the optical axis Ax coincide with each other. It is also possible to adopt the configuration that is used.
  • the lamp unit 1010 has been described as being an in-vehicle lamp unit, but it is used for purposes other than in-vehicle use (for example, a town configured to draw from a direction substantially directly above the road surface). It can also be used for applications such as road light units).
  • FIG. 22 is a diagram similar to FIG. 20, showing the lamp unit 1110 according to the present modification. As shown in FIG. 22, the basic configuration of this modification is the same as that of the second embodiment, but the configuration of the light source side sub-assy 1150 is partially different from that of the second embodiment.
  • the light source side sub-assy 1150 of this modification has a configuration in which the second light source 152C and the second lens 154C are provided in addition to the first light source 52A and the second light source 52B and the first lens 54A and the second lens 54B. It has become.
  • the second light source 152C and the second lens 154C are arranged symmetrically with each other with respect to the vertical plane including the optical axis Ax with respect to the second light source 52B and the second lens 54B. It has a similar configuration.
  • the second light source 152C is composed of a light emitting diode that emits blue light, and is supported by the light source side holder 160C via the support substrate 156C.
  • the second lens 154C is a biconvex lens and is supported by the light source side holder 160C via the lens holder 158C.
  • the light from the second light source 152C that reaches the spatial light modulator 30 via the second lens 154C and is reflected by the reflecting element 30As at the first angle position is the light that goes diagonally downward to the right. Become.
  • the light from the second light source 152C reflected by the reflecting element 30As is the first light source 52A and its peripheral structure (that is, the first lens 54A, the support substrate 56A, and the lens holder 58A) as shown by the solid line optical path R5.
  • the light source side holder 60A) and the second light source 52B and its peripheral structure that is, the second lens 54B, the support substrate 56B, the lens holder 58B and the light source side holder 60B
  • Head towards the rear region 74B of 74 see FIG. 17).
  • the reflecting element 30As changes to the second angular position
  • the light from the second light source 152C reflected by the reflecting element 30As is projected as slightly downward light as shown by the optical path R6 of the alternate long and short dash line. Head toward the third lens 72C of the lens 72.
  • the complementary light distribution pattern PB surrounding the road surface drawing light distribution pattern PA can be formed as a bright light distribution pattern by simultaneously lighting a pair of left and right second light sources 52B and 152C.
  • the existence of the light distribution pattern PA for road surface drawing can be further clarified, and thereby the function of calling attention to the surroundings can be further enhanced.
  • FIG. 23 is a diagram similar to FIG. 20, showing the lamp unit 1210 according to the present modification.
  • the basic configuration of this modification is the same as that of the second embodiment, but the configuration of the light source side sub-assy 1250 is partially different from that of the second embodiment.
  • the left and right pairs of the first light sources 252D and 252E and the left and right pair of the first lenses 254D and 254E are the central axis Ax1 of the reflection control unit 30A of the spatial light modulator 30.
  • the horizontal plane including the above is arranged in a vertically symmetrical positional relationship with the pair of left and right second light sources 52B and 152C and the pair of left and right second lenses 54B and 154C in the first modification of the second embodiment, and the second The light source 252F and the second lens 254F are arranged in a vertically symmetrical positional relationship with the first light source 52A and the second lens 54A in the first modification with respect to the horizontal plane.
  • first light source 252D and the first lens 254D are located diagonally downward to the right with respect to the optical axis Ax, they reach the spatial light modulator 30 via the first lens 254D and reach the first The light from the first light source 252D reflected by the reflecting element 30As at the angle position of is the light directed diagonally upward to the left.
  • the light from the first light source 252D reflected by the reflecting element 30As goes toward the third lens 72C of the projection lens 72 as slightly upward light as shown by the solid optical path R7.
  • the reflecting element 30As when the reflecting element 30As is rotated to the second angular position, the light from the first light source 252D reflected by the reflecting element 30As is the first light source 252E and its light as shown by the optical path R8 of the two-point chain line.
  • Peripheral structure that is, first lens 254E, support substrate 256E, lens holder 258E and light source side holder 260E
  • second light source 252F and its peripheral structure that is, second lens 254F, support substrate 256F, lens holder 258F and light source side holder 260F).
  • first light source 252E and the first lens 254E are located diagonally downward to the left with respect to the optical axis Ax, they reach the spatial light modulator 30 via the first lens 254E and reach the first angle.
  • the light from the first light source 252E reflected by the reflecting element 30As at the position becomes light that goes diagonally upward to the right.
  • the light from the first light source 252E reflected by the reflecting element 30As goes toward the third lens 72C of the projection lens 72 as slightly upward light as shown by the solid optical path R9.
  • the reflecting element 30As when the reflecting element 30As is rotated to the second angular position, the light from the first light source 252E reflected by the reflecting element 30As is the first light source 252D and its surroundings as shown by the optical path R10 of the two-point chain line.
  • the rear region 74B of the lens holder 74 as fairly upward light without reaching the structure (ie, the first lens 254D, the support substrate 256D, the lens holder 258D and the light source side holder 260D) and the second light source 252F and its peripheral structures. Head to (see Figure 17).
  • the second light source 252F and the second lens 254F are arranged at positions directly above the optical axis Ax, they reach the spatial light modulator 30 via the second lens 254F and reach the first angular position.
  • the light from the second light source 252F reflected by a certain reflecting element 30As becomes light directed in a direction substantially directly below the optical axis Ax.
  • the light from the second light source 252F reflected by the reflecting element 30As does not reach the first light sources 252D and 252E and their peripheral structures as shown by the solid optical path R11, and is regarded as considerably downward light.
  • the light from the second light source 252F reflected by the reflecting element 30As does not reach the first light sources 252D and 252E and their peripheral structures as shown by the solid optical path R11, and is regarded as considerably downward light.
  • the reflecting element 30As when the reflecting element 30As is rotated to the second angular position, the light from the second light source 252F reflected by the reflecting element 30As is regarded as slightly downward light as shown by the optical path R12 of the alternate long and short dash line. It goes to the third lens 72C of the projection lens 72.
  • the light distribution pattern PA for road surface drawing can be formed as a bright light distribution pattern by simultaneously lighting the pair of left and right first light sources 252D and 252E, so that the light distribution pattern PA for road surface drawing can be formed.
  • the existence can be further clarified, which can further enhance the function of calling attention to the surroundings.
  • FIG. 24 is a diagram similar to FIG. 17, showing the lamp unit 1310 according to the present modification.
  • the basic configuration of this modification is the same as that of the second embodiment, but the configuration of the light source side sub-assy 1350 is partially different from that of the second embodiment.
  • the light source side sub-assy 1350 of this modification is configured to include a first light source 352A and a reflector 364A instead of the first light source 52A and the first lens 54A of the second embodiment.
  • the first light source 352A is arranged between the third lens 72C of the projection lens 72 and the bracket 40 directly below the optical axis Ax.
  • the first light source 352A is composed of a light emitting diode that emits yellow light, and is supported by a light source side holder 360A via a support substrate 356A with its light emitting surface facing diagonally upward and forward.
  • the light source side holder 360A is supported by the shelf-shaped portion 40d of the bracket 40.
  • the reflector 364A is supported by the support substrate 356A in a state where the first light source 352A is arranged so as to cover from the front side of the unit, and the light emitted from the first light source 352A is reflected toward the spatial light modulator 30. It is configured in.
  • the reflection surface 364Aa of the reflector 364A has a curved surface shape obtained by slightly deforming the spheroid surface as a reference surface, whereby the light emitted from the first light source 352A is reflected by the spatial light modulator 30. It is designed to converge to 30A.
  • the light from the first light source 352A that is reflected by the reflector 364A and reaches the spatial light modulator 30 and is reflected by the reflecting element 30As at the first angular position is in a direction substantially directly above the optical axis Ax. It becomes a light toward.
  • the light from the first light source 352A reflected by the reflecting element 30As goes toward the third lens 72C of the projection lens 72 as slightly upward light as shown by the solid optical path R13.
  • the reflecting element 30As changes to the second angular position
  • the light from the first light source 352A reflected by the reflecting element 30As is the second light source 52B and its surroundings as shown by the optical path R14 of the alternate long and short dash line. Without reaching the structure, the light is directed toward the rear region 74B of the lens holder 74 as a considerably upward light.
  • the second light source 52B and the second lens 54B are located obliquely upward to the right with respect to the optical axis Ax, they reach the spatial light modulator 30 via the second lens 54B and reach the first angle.
  • the light from the second light source 52B reflected by the reflecting element 30As at the position is sent to the first light source 352A and its peripheral structure (that is, the reflector 364A, the support substrate 356A, and the light source side holder 360A) as shown by the solid line optical path R3. Without reaching, the light is directed toward the rear region 74B (see FIG. 17) of the lens holder 74 as a considerably downward light.
  • the reflecting element 30As when the reflecting element 30As is rotated to the second angular position, the light from the second light source 52B reflected by the reflecting element 30As is regarded as slightly downward light as shown by the optical path R4 of the alternate long and short dash line. It goes to the third lens 72C of the projection lens 72.
  • the spatial light modulation is performed by the surface shape of the reflecting surface 364Aa of the reflector 364A.
  • the intensity distribution of the reflected light from the vessel 30 can be easily adjusted, which makes it possible to easily adjust the light intensity distribution of the road surface drawing light distribution pattern PA and the complementary light distribution pattern PB.
  • FIG. 25 is a diagram similar to FIG. 17, showing the lamp unit 1410 according to the present modification.
  • the basic configuration of this modification is the same as that of the second embodiment, but the configuration of the third lens 472C of the projection lens 1472 is partially different from that of the second embodiment. There is.
  • the third lens 472C of the present modification is also composed of a glass biconvex lens having a circular outer peripheral shape like the third lens 72C of the second embodiment, and the outer peripheral flange portion is formed on the outer peripheral edge portion thereof.
  • 72Ca is formed, the upper half and the lower half have different incident surface shapes with the horizontal plane including the optical axis Ax as a boundary.
  • the lower half 472Cb is slightly displaced to the front side of the unit with respect to the upper half 472Ca.
  • the extension line of the curve constituting the vertical cross-sectional shape of the upper half portion 472Ca is shown by a two-dot chain line.
  • the rear focus F is located at the center of the reflection control unit 30A with respect to the yellow light (that is, the emission color of the first light source 52A), and the lower half thereof.
  • the third lens 472C of the projection lens 1472 has different incident surface shapes in the upper half portion and the lower half portion, the following effects can be obtained.
  • the lamp unit 1410 has a configuration in which the first light source 52A is arranged on the lower side and the second light source 52B is arranged on the upper side with respect to the optical axis Ax of the projection lens 1472. Therefore, most of the light from the first light source 52A reflected by the spatial light modulator 30 and directed to the projection lens 1472 is incident on the upper half of the third lens 472C as shown by the optical path R1, while the spatial light. Most of the light from the second light source 52B reflected by the modulator 30 and directed toward the projection lens 1472 is incident on the lower half of the third lens 472C as shown by the optical path R4.
  • the projection lens 1472 is configured to have different incident surface shapes in the upper half portion and the lower half portion as in the projection lens 1472 of the present modification, so that the projection lens 1472 is formed by the first light source 52A and the second light source 52B, respectively. It can be configured as a lens having a focal length corresponding to the wavelength of the emitted light, whereby each of the road surface drawing light distribution pattern PA and the complementary light distribution pattern PB can be formed more clearly.
  • the third lens 472C has been described as being composed of a glass lens having a circular outer peripheral shape, but the third lens 472C can be easily molded by being composed of a resin lens. It is also possible to facilitate the positioning in the rotation direction about the optical axis Ax by making the outer peripheral shape of the third lens 472C rectangular.
  • FIG. 26 is a front view showing a vehicle lamp 2100 according to a third embodiment of the present disclosure.
  • 27 is a sectional view taken along line II-II of FIG. 26
  • FIG. 28 is a sectional view taken along line III-III of FIG. 26.
  • FIG. 29 is a detailed view of a main part of FIG. 27, and
  • FIG. 30 is a view taken along the line VV of FIG. 29.
  • the same configurations as those of the first embodiment or the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the vehicle lamp 2100 is a road surface drawing lamp provided at the front end of the vehicle, and is a first lamp in a lamp chamber formed by the lamp body 102 and the translucent cover 104.
  • the lamp unit 2010A and the second lamp unit 2010B are housed in a state where the optical axis is adjusted so that the front-rear direction thereof coincides with the front-rear direction of the lamp (and the front-rear direction of the vehicle).
  • the first lamp unit 2010A includes a spatial light modulation unit 2020, a light source side sub-assy 2050, a lens-side sub-assy 2070, and a bracket 40A that supports them.
  • the first lamp unit 2010A is supported by the lamp body 102 via a mounting structure (not shown) in the bracket 40A, and is configured to be tilted in the vertical and horizontal directions with respect to the lamp body 102.
  • the bracket 40A is a metal member (for example, made of aluminum die-cast) and is arranged so as to extend along a vertical plane orthogonal to the front-rear direction of the lamp, and extends toward the front of the lamp at two locations on the front surface thereof.
  • a shelf-shaped portion 40d is formed.
  • the spatial light modulation unit 2020 is arranged on the first spatial light modulator 2030A, the support substrate 22 arranged on the rear side of the lamp from the first spatial light modulator 2030A, and on the rear side of the lamp from the support substrate 22. It is provided with a heat sink 24.
  • the lens-side sub-assessie 2070 includes a first projection lens 2072A having an optical axis Ax extending in the front-rear direction of the lamp, and a lens holder 74 that supports the first projection lens 2072A. It is supported by the bracket 40A.
  • the light source side sub-assie 2050 includes a first light source 2052A and a condenser lens 54 that deflects the light emitted from the first light source 2052A toward the first spatial light modulator 2030A.
  • the first light source 2052A and the condenser lens 54 are arranged below the optical axis Ax (specifically, at a position directly below the optical axis Ax).
  • the light from the first light source 2052A that has reached the first spatial light modulator 2030A via the condenser lens 54 is reflected by the first spatial light modulator 2030A.
  • a light distribution pattern for drawing characters, symbols, etc. on the road surface in front of the vehicle that is, a light distribution pattern for drawing the road surface
  • the control of the first spatial light modulator 2030A is performed based on a video signal from an in-vehicle camera (not shown).
  • the first spatial light modulator 2030A is a digital micromirror device (DMD), and is a plurality of first reflecting elements (specifically, hundreds of thousands of micromirrors) 2032As.
  • DMD digital micromirror device
  • the housing unit 2034 accommodating the reflection control unit 2032A, and the housing unit 2034 in a state of being arranged on the front side of the lamp from the reflection control unit 2032A. It is configured to include a light transmissive plate 2036.
  • the first spatial light modulator 2030A is arranged so that its reflection control unit 2032A is located on the vertical plane orthogonal to the optical axis Ax at the rear focal point F of the first projection lens 2072A.
  • the central axis of the reflection control unit 2032A (that is, the axis passing through the center positions of the plurality of first reflecting elements 2032As) Ax1 extends in the front-rear direction of the lamp at a position displaced upward with respect to the optical axis Ax.
  • the upward displacement amount Ha of the central axis Ax1 with respect to the optical axis Ax is set to a value such that the lower end edge of the reflection control unit 2032A is located slightly above the optical axis Ax.
  • the first spatial light modulator 2030A reaches each first reflecting element 2032As by controlling the angle of each reflecting surface of the plurality of first reflecting elements 2032As constituting the reflection control unit 2032A.
  • the direction of reflection of light from the light source 52A can be selectively switched.
  • a second angular position that reflects in the direction of the optical path R2 (the direction indicated by the two-point chain line in FIG. 29) toward the deviated direction (that is, the direction that does not adversely affect the formation of the light distribution pattern) is selected.
  • the first spatial light modulator 2030A Since the optical axis Ax of the first projection lens 2072A is displaced downward with respect to the central axis Ax1 of the first spatial light modulator 2030A, the first spatial light modulator 2030A The light that reaches the first projection lens 2072A is emitted from the first projection lens 2072A toward the front of the lamp as light that is slightly downward in the horizontal direction, whereby the light distribution pattern for road surface drawing is efficiently applied to the road surface in front of the vehicle. It is designed to be able to form.
  • each first reflecting element 2032As constituting the reflection control unit 2032A is the same as that of the reflecting element 30As shown in FIG.
  • the first space optical modulator 2030A is supported by the bracket 40A and the heat sink 24 from both sides in the front-rear direction of the lamp.
  • the bracket 40A is formed with a horizontally long rectangular opening 40a surrounding the translucent plate 2036 of the first spatial light modulator 2030A.
  • the first light source 2052A is composed of a light emitting diode that emits green light.
  • the first light source 2052A is supported by a light source side holder 60 via a support substrate 56, and the light source side holder 60 is supported by a shelf-shaped portion 40d of the bracket 40A.
  • the condenser lens 54 is arranged at a position where the light emitted from the first light source 2052A converges on the reflection control unit 2032A of the first spatial light modulator 2030A.
  • the first projection lens 2072A is composed of a first lens 72A1, a second lens 72A2, and a third lens 72A3, which are three lenses arranged side by side in the front-rear direction of the lamp on the optical axis Ax. ing.
  • the first lens 72A1 located on the front side of the lamp is configured as a plano-convex lens that bulges toward the front of the lamp.
  • the second lens 72A2 located at the center is configured as a biconcave lens.
  • the third lens 72A3 located most rearward of the lamp is configured as a biconvex lens.
  • the first lens 72A1 is composed of a resin lens (specifically, an acrylic resin lens).
  • the second lens 72A2 is composed of a resin lens (specifically, a polycarbonate resin lens).
  • the third lens 72A3 is made of a glass lens.
  • the first lens 72A1 and the second lens 72A2 have a rectangular outer peripheral shape having substantially the same size when viewed from the front of the lamp.
  • the third lens 72A3 has a circular outer peripheral shape larger than that of the first lens 72A1 and the second lens 72A2 in the front view of the lamp, and the outer peripheral flange portion 72A3a is formed on the outer peripheral edge portion thereof.
  • the first lens 72A1 to the third lens 72A3 are supported by a common lens holder 74.
  • the first metal fitting 76A is attached to the lens holder 74 from the front side of the lamp, whereby the first lens 72A1 and the second lens 72A2 are fixed to the lens holder 74.
  • a plurality of clips 76B are attached from the outer peripheral side of the third lens 72A3 in a state where the second metal fitting 76C is pressed against the outer peripheral flange portion 72A3a from the rear side of the lamp. It is fixed at 74.
  • the basic configuration of the second lamp unit 2010B is the same as that of the first lamp unit 2010A. That is, the second lamp unit 2010B is configured to irradiate the light from the second light source 2052B reflected by the second spatial light modulator 2030B toward the front of the lamp via the second projection lens 2072B.
  • the second lamp unit 2010B is the central axis of the reflection control unit 2032B of the second spatial light modulator 2030B with respect to the optical axis Ax of the second projection lens 2072B (that is, the axis passing through the center positions of the plurality of second reflecting elements 2032Bs).
  • an extension panel extending along a vertical plane orthogonal to the front-rear direction of the lamp near the front end of the first lamp unit 2010A and the second lamp unit 2010B. 106 is arranged.
  • the extension panel 106 is supported by the lamp body 102 at its peripheral edge.
  • the extension panel 106 is formed with a pair of left and right openings 106a and 106b.
  • One opening 106a is formed in a rectangular shape at the front end position of the first lamp unit 2010A so as to surround the first lens 72A1 of the first projection lens 2072A.
  • the other opening 106b is formed in a rectangular shape at the front end position of the second lamp unit 2010B so as to surround the first lens 72B1 of the second projection lens 2072B.
  • the openings 106a and 106b are formed so as to surround the first lenses 72A1 and 72B1 at substantially constant intervals in the front view of the lamp.
  • 31 and 32 are diagrams that transparently show the light distribution pattern formed on the virtual vertical screen arranged at a position 25 m in front of the vehicle by the irradiation light from the vehicle lamp 2100.
  • the light distribution pattern shown in FIG. 31 is a road surface drawing light distribution pattern PA formed by the irradiation light from the first lamp unit 2010A, and the light distribution pattern shown in FIG. 32 is the irradiation light from the second lamp unit 2010B. It is a light distribution pattern PC for road surface drawing formed by.
  • These road surface drawing light distribution patterns PA and PC are formed together with (or independently of) the low beam light distribution pattern PL formed by the irradiation light from other vehicle lamps (not shown).
  • Light distribution patterns for road surface drawing PAs and PCs are light distribution patterns for drawing road surfaces to call attention to the surroundings, and are formed as light distribution patterns for drawing characters, symbols, etc. on the road surface in front of the vehicle. There is.
  • the road surface drawing light distribution pattern PA shown in FIG. 31 is formed in a relatively long distance region on the road surface in front of the vehicle as an arrow-shaped light distribution pattern facing the front direction of the vehicle.
  • the road surface drawing light distribution pattern PA is a part (for example, a region set in an arrow shape) of a plurality of first reflection elements 2032As constituting the reflection control unit 2032A of the first spatial light modulator 2030A. 1 Reflecting element 2032As) is rotated to a first angular position, and the light from the first light source 2052A reflected by these first reflecting elements 2032As is directed to the first projection lens 2072A. There is. At that time, since the first light source 2052A is composed of a light emitting diode that emits green light, the road surface drawing light distribution pattern PA is also formed as a green light distribution pattern.
  • region Za indicated by the alternate long and short dash line in FIG. 31 indicates the range in which various light distribution patterns PA for road surface drawing can be formed.
  • the region Za is a rectangular region centered on the VV line on the virtual vertical screen, and the upper end edge thereof is located near the lower side of the HH line passing horizontally through the HV. ..
  • the road surface drawing light distribution pattern PC shown in FIG. 32 is formed as a vertically striped light distribution pattern facing the front direction of the vehicle in a relatively short distance region of the road surface in front of the vehicle.
  • This road surface drawing light distribution pattern PC is also formed as a green light distribution pattern like the road surface drawing light distribution pattern PA.
  • region Zb shown by the alternate long and short dash line in FIG. 32 indicates the range in which various light distribution patterns PB for road surface drawing can be formed.
  • the region Zb is a rectangular region centered on the VV line on the virtual vertical screen, and the upper end edge thereof is located in the middle of the light distribution pattern PA for drawing the road surface in the vertical direction.
  • FIG. 33 is a diagram similar to FIG. 26 showing the appearance of the vehicle lamp 2100 according to the present embodiment.
  • FIG. 34 is a diagram showing the appearance of the vehicle lamp 2100 ′ as a comparative example.
  • the optical axes Ax of the first projection lens 2072A and the second projection lens 2072B in the first lamp unit 2010A and the second lamp unit 2010B are both before and after the lamp. Since it extends horizontally in the direction, both the first projection lens 2072A and the second projection lens 2072B are arranged so as to face the front direction of the lamp.
  • the first lens 72A1 of the first projection lens 2072A is arranged with respect to the opening 106a of the extension panel 106 at a substantially constant distance from the inner peripheral surface thereof.
  • the first lens 72B1 of the second projection lens 2072B is arranged with respect to the opening 106b of the extension panel 106 at a substantially constant distance from the inner peripheral surface thereof.
  • the first lamp unit 2010A'and the second lamp unit 2010B' are like the first lamp unit 2010A and the second lamp unit 2010B of the present embodiment.
  • the central axis Ax1 of the reflection control units 2032A and 2032B of the first spatial optical modulator 2030A and the second spatial optical modulator 2030B is displaced upward with respect to the optical axis Ax of the first projection lens 2072A and the second projection lens 2072B.
  • the optical axis Ax and the central axis Ax1 are aligned with each other, and the road surface is drawn in the same manner as in the present embodiment by the irradiation light from the first lamp unit 2010A'and the second lamp unit 2010B'.
  • the configuration when the light distribution patterns PA and PC are formed is shown.
  • the first lamp unit 2010A' In the vehicle lamp 2100', in order to form the road surface drawing light distribution pattern PA in a relatively long distance region on the road surface in front of the vehicle by the irradiation light from the first lamp unit 2010A', the first lamp unit 2010A'is used.
  • the second lamp unit 2010B in order to form the road surface drawing light distribution pattern PC in a relatively short distance region on the road surface in front of the vehicle by the irradiation light from the second lamp unit 2010B', the second lamp unit 2010B It is necessary to arrange the ′ so that the optical axis Ax of the second projection lens 2072B ′ is further obliquely downward toward the front of the lamp.
  • the first lamp unit 2010A' is in a state where the first lens 72A1'of the first projection lens 2072A' is slightly obliquely downward and.
  • the distance between the extension panel 106 and the inner peripheral surface of the opening 106a is also uneven.
  • the first lens 72B1'of the second projection lens 2072B' is further obliquely downward, and the distance from the inner peripheral surface of the opening 106b of the extension panel 106 is also large. Furthermore, it looks uneven.
  • the vehicle lamp 2100 has a configuration in which the first lamp unit 2010A and the second lamp unit 2010B are arranged in parallel.
  • the first lamp unit 2010A is configured to irradiate the light from the first light source 2052A reflected by the first spatial light modulator 2030A toward the front of the lamp through the first projection lens 2072A.
  • the light distribution pattern PA for drawing the road surface can be formed on the road surface in front of the vehicle, thereby alerting the surroundings.
  • the second lamp unit 2010B is configured to irradiate the light from the second light source 2052B toward the front of the lamp via the second projection lens 2072B, a required light distribution pattern can be obtained by the irradiation light. Can be formed.
  • the first spatial light modulator 2030A sets the center position of the plurality of first reflecting elements 2032As constituting the reflection control unit 2032A upward from the optical axis Ax of the first projection lens 2072A. Since it is arranged in a state of being displaced to, it is possible to irradiate light diagonally downward toward the front of the lamp while the first lamp unit 2010A is arranged horizontally, thereby light distribution for road surface drawing.
  • the pattern PA can be formed efficiently.
  • the directions of the first projection lens 2072A and the second projection lens 2072B of the first lamp unit 2010A and the second lamp unit 2010B arranged in parallel the first lamp unit 2010A and the second lamp unit 2010A and the second lamp are aligned.
  • the directions of the irradiation light from each of the units 2010B can be different from each other. Therefore, various light distribution patterns including the road surface drawing light distribution pattern PA can be efficiently formed without impairing the appearance of the vehicle lighting tool 2100.
  • various light distribution patterns including the light distribution pattern PA for road surface drawing can be applied to the vehicle lamp. It can be efficiently formed without spoiling the appearance of the 2100.
  • the second lighting equipment unit 2010B like the first lighting equipment unit 2010A, provides the second space optical modulator 2030B for reflecting the light from the second light source 2052B toward the second projection lens 2072B.
  • the second spatial optical modulator 2030B is provided with a first angular position for reflecting light from the second light source 2052B toward the second projection lens 2072B and toward a direction deviating from the second projection lens 2072B. Since the plurality of second reflecting elements 2032Bs configured to selectively take the second angular position to be reflected are provided, the following effects can be obtained.
  • the light distribution pattern PC for road surface drawing can be accurately formed on the road surface in front of the vehicle, and the light distribution pattern for headlamps and the light distribution pattern for headlamps can be formed. A part of it can be formed with high accuracy.
  • the second spatial light modulator 2030B is arranged in a state where the center positions of the plurality of second reflecting elements 2032Bs constituting the reflection control unit 2032B are displaced upward from the optical axis Ax of the second projection lens 2072B. ing. At that time, the amount of upward displacement of the first projection lens 2072A from the optical axis Ax of the central axis Ax1 of the reflection control unit 2032A of the first spatial light modulator 2030A (that is, the axis passing through the central positions of the plurality of first reflecting elements 2032As).
  • the first lamp unit 2010A and the second lamp unit 2010B are aligned.
  • the downward angles of the irradiation light from each can be different from each other.
  • the downward angle of the irradiation light from the first lamp unit 2010A is aligned.
  • the downward angle of the irradiation light from the second lamp unit 2010B can be made larger than that.
  • the light distribution pattern PA for drawing the road surface can be efficiently formed in the long-distance region of the road surface in front of the vehicle, and the light distribution pattern PC for drawing the road surface can be efficiently formed in the short-distance region of the road surface in front of the vehicle.
  • the function of calling attention to the surroundings can be enhanced.
  • the second lamp fixture is used.
  • the light distribution pattern for the head lamp and a part thereof can be efficiently formed by the irradiation light from the unit 2010B.
  • the vehicle lamp 2100 according to the present embodiment has a configuration in which the first lamp unit 2010A and the second lamp unit 2010B are arranged in the same lamp chamber.
  • the first lamp unit is the first. If the orientations of the lamp unit 2010A and the second lamp unit 2010B are not aligned, the appearance of the vehicle lamp 2100 will be significantly impaired. Therefore, it is particularly effective to adopt the configuration of the present embodiment.
  • both the first light source 2052A and the second light source 2052B have been described as being composed of a light emitting diode that emits green light, but emits light in a light emitting color such as blue or white in addition to green. It is also possible to use a light emitting diode or the like.
  • the reflection control units 2032A and 2032B of the first spatial light modulator 2030A and the second spatial light modulator 2030B are on the vertical plane orthogonal to the optical axis Ax of the first projection lens 2072A and the second projection lens 2072B.
  • the lens is arranged in an inclined state (for example, in a forward inclined state) with respect to the vertical plane orthogonal to the optical axis Ax.
  • FIG. 35 is a diagram similar to FIG. 26 showing the vehicle lamp 2200 according to the present modification.
  • the basic configuration of this modification is the same as that of the third embodiment, but the configuration of the second lamp unit 2110B is partially different from that of the third embodiment.
  • the second lamp unit 2110B of the present modification is the central axis Ax1 (that is, the axis passing through the center positions of the plurality of first reflecting elements 2132Bs) and the second projection lens of the reflection control unit 2132B of the second spatial light modulator 2130B. It coincides with the optical axis Ax of 2072B, and extends in the front-rear direction of the lamp in this state.
  • the configuration of the bracket 140B is partially different from that of the bracket 40B of the third embodiment.
  • the opening 106b of the extension panel 106 is formed in a rectangular shape at the front end position of the second lamp unit 2110B so as to surround the first lens 2172B1 of the second projection lens 2172B. , The distance between the two is maintained at a substantially constant value.
  • FIG. 36 is a diagram similar to FIG. 32, which transparently shows a light distribution pattern formed on a virtual vertical screen arranged at a position 25 m in front of the vehicle by irradiation light from the vehicle lamp 2200.
  • the light distribution pattern shown in FIG. 36 is an additional light distribution pattern PD for a high beam formed by the irradiation light from the second lamp unit 2110B.
  • the road surface drawing light distribution pattern PA formed by the irradiation light from the first lamp unit 2010A is the same as the road surface drawing light distribution pattern PA shown in FIG. 31.
  • the high beam additional light distribution pattern PD shown in FIG. 36 is formed as a light distribution pattern for increasing the brightness of the central region of the high beam light distribution pattern PH formed by irradiation light from other vehicle lamps (not shown). It is supposed to be done.
  • the high beam light distribution pattern PH is formed as a light distribution pattern in which the low beam light distribution pattern PL is expanded to the space above the cut-off lines CL1 and CL2.
  • the high beam additional light distribution pattern PD is formed as a spot-shaped light distribution pattern centered on the HV.
  • the shape and formation position of the high beam additional light distribution pattern PD can be appropriately changed by controlling the second spatial light modulator 2130B.
  • the region Zc is a rectangular region centered on HV. This is because the central axis Ax1 of the reflection control unit 2132B of the second spatial light modulator 2130B and the optical axis Ax of the second projection lens 2172B extend in the front-rear direction of the lamp in a state of being aligned with each other. This is because the light that has reached the second projection lens 2172B from the vessel 2130B is emitted from the second projection lens 2172B toward the front of the lamp.
  • the second The high beam additional light distribution pattern PD can be formed accurately and efficiently by the irradiation light from the lamp unit 2110B.
  • FIG. 37 is a view similar to FIG. 26 showing the vehicle lamp 2300 according to the present modification
  • FIG. 38 is a cross-sectional view taken along the line XII-XII of FIG. 37.
  • the basic configuration of this modification is the same as that of the third embodiment, but the configuration of the second lamp unit 210B is different from that of the third embodiment.
  • the second lamp unit 210B of this modification is configured to irradiate the light from the second light source 252B toward the front of the lamp via the second projection lens 272B, and at that time, the second light source 252B.
  • the light from the light source is reflected by the reflector 262 and incident on the second projection lens 272B.
  • the second projection lens 272B is a light source image formed on the rear focal plane (that is, the focal plane including the posterior focal F of the second projection lens 272B) by the light emitted from the second light source 252B and reflected by the reflector 262. Is projected onto a virtual vertical screen in front of the vehicle.
  • the second projection lens 272B is composed of a single resin lens (specifically, an acrylic resin lens).
  • the second projection lens 272B is configured as a plano-convex lens that bulges toward the front of the lamp, and has an outer shape in which both upper and lower ends of a circle are cut out in the horizontal direction when viewed from the front of the lamp.
  • the second projection lens 272B is supported by the lens holder 278 at its outer peripheral edge, and the lens holder 278 is supported by the base member 280.
  • the second light source 252B is a light emitting diode that emits white light, and has a horizontally long rectangular light emitting surface.
  • the second light source 252B is supported by the base member 280 with its light emitting surface arranged upward on the optical axis Ax.
  • the reflector 262 is supported by the base member 280 at its lower end edge in a state where it is arranged so as to cover the second light source 252B from the upper side.
  • the reflection surface 262a of the reflector 262 is formed of a substantially ellipsoidal curved surface having the light emitting center of the second light source 252B as the first focal point.
  • the reflective surface 262a is set to an elliptical shape having a second focal point at which the vertical cross-sectional shape along the long axis is located on the front side of the lamp from the rear focal point F, and the eccentricity is horizontal from the vertical cross section. It is set to gradually increase toward the cross section. As a result, the reflector 262 converges the light emitted from the second light source 252B to a point located in front of the lamp fixture in the vertical cross section, and further converges the convergence position in the horizontal cross section. Displace it forward.
  • the base member 280 is formed with an upward reflecting surface 280a for reflecting a part of the light from the second light source 252B reflected by the reflector 262 upward and then reflecting the blocked light upward.
  • the upward reflecting surface 280a is composed of a horizontal plane in which the left side region located on the left side of the optical axis Ax (right side in front view of the lighting equipment) is located slightly above the optical axis Ax and on the right side of the optical axis Ax.
  • the right side region located in is composed of a horizontal plane one step lower than the left side region (specifically, a horizontal plane located slightly below the optical axis Ax) through a short slope, and its front edge is rearward. It extends to both the left and right sides so as to pass near the upper side of the lateral focal point F.
  • the light reflected upward by the upward reflecting surface 280a of the base member 280 is incident on the second projection lens 272B, and this is emitted from the second projection lens 272B as downward light.
  • a low beam light distribution pattern PL as shown in FIG. 31 is formed.
  • the extension panel 206 which is substantially the same as the extension panel 106 of the third embodiment is arranged in the lighting chamber of the vehicle lamp 2300.
  • the extension panel 206 is formed with a pair of left and right openings 206a and 206b.
  • the opening 206a is formed so as to surround the first lens 72A1 of the first projection lens 2072A at a substantially constant interval at the front end position of the first lamp unit 2010A.
  • the opening 206b is formed so as to surround the second projection lens 272B at the front end position of the second lamp unit 210B at a substantially constant interval.
  • the first lamp unit 2010A and the second lamp unit 210B are arranged in parallel with the first projection lens 2072A and the second projection lens 272B in the same orientation.
  • the directions of the irradiation light from each of the second lamp units 210B can be different from each other. Therefore, the light distribution pattern PA for road surface drawing and the light distribution pattern PL for low beam shown in FIG. 31 can be efficiently formed simultaneously or separately without impairing the appearance of the vehicle lamp 2300.
  • FIG. 39 is a side sectional view showing a vehicle lamp 3100 according to a fourth embodiment of the present disclosure.
  • 40 is a view taken in the direction II of FIG. 39
  • FIG. 41 is a view taken in the direction III of FIG. 39.
  • the same configurations as those of the first to third embodiments are designated by the same reference numerals, and the description thereof will be omitted.
  • the vehicle lamp 3100 is a road surface drawing lamp provided at the front end of the vehicle, and the lamp unit 3010 is placed in a lamp chamber formed by the lamp body 102 and the translucent cover 104. It is housed in a state where the optical axis is adjusted so that the front-rear direction coincides with the front-rear direction of the lamp (and the front-rear direction of the vehicle).
  • the lamp unit 3010 includes a spatial light modulation unit 20, a light source side sub-assy 3050, a lens-side sub-assy 3070, and a bracket 3040 that supports them.
  • the bracket 3040 is a metal member, and has a vertical surface portion 3040A extending along a vertical surface orthogonal to the front-rear direction of the lamp and a horizontal surface portion extending along a substantially horizontal plane from the lower end edge of the vertical surface portion 3040A toward the front of the lamp. It is equipped with 3040B.
  • the lamp unit 3010 is supported so as to be aimable in the vertical direction and the horizontal direction with respect to the lamp body 102.
  • the lamp unit 3010 has a lamp body formed by a pivot 12 located at the upper right (upper left when viewed from the front of the lamp) and two aiming screws 14 and 16 located at the upper left and lower right in the vertical facing portion 3040A of the bracket 3040. It is rotatably supported in the vertical and horizontal directions with respect to 102.
  • the pivot 12 is arranged so as to extend in the front-rear direction of the lamp, and is fixedly supported by the lamp body 102 at its base end (rear end).
  • the pivot 12 has a spherical tip (front end) 12a, and at the tip 12a, the pivot 12 engages with a resin spherical step bearing 42 mounted on the bracket 3040 so as to be rotatable in all directions. ing.
  • the aiming screw 14 is arranged so as to extend in the front-rear direction of the lamp, and is rotatably supported by the lamp body 102 at its base end (rear end).
  • the aiming screw 14 is screwed with a resin aiming nut 44 attached to the bracket 3040 at its screw portion 14a.
  • the aiming nut 44 is attached to the bracket 3040 in a manner capable of allowing the bracket 3040 to rotate around a vertical axis centered on a screwing position with the aiming screw 14.
  • the aiming screw 16 is also arranged so as to extend in the front-rear direction of the lamp, and is rotatably supported by the lamp body 102 at its base end (rear end).
  • the aiming screw 16 is screwed with a resin aiming nut 46 mounted on the bracket 3040 at its screw portion 16a.
  • the aiming nut 46 is attached to the bracket 3040 in a manner capable of allowing the bracket 3040 to rotate around a horizontal axis centered on a screwing position with the aiming screw 16.
  • the spatial light modulation unit 20 includes a spatial light modulator 30, a support substrate 22 arranged on the rear side of the lamp from the spatial light modulator 30, and a support substrate 22 on the rear side of the lamp. It is provided with a heat sink 24 arranged in the above, and is supported by a vertical facing portion 3040A of the bracket 3040 on the front side of the lighting fixture with respect to the spatial light modulator 30.
  • the light source side sub-assy 3050 reflects the pair of left and right light sources (specifically, light emitting diodes that emit green light) 52 mounted on the substrate 56 and the light emitted from each light source 52 toward the spatial light modulation unit 20. It is provided with a reflector 3054 for making the reflector 3054 and a base member 3060 for supporting them, and is supported by the horizontal surface portion 3040B of the bracket 3040 in the base member 3060. At that time, the reflecting surface of the reflector 3054 is configured to converge the light emitted from each light source 52 to a position displaced upward with respect to the rear focal point F of the projection lens 3072.
  • the lens-side sub-assessie 3070 includes a projection lens 3072 having an optical axis Ax extending in the front-rear direction of the lamp, and a lens holder 3074 that supports the projection lens 3072. It is supported by the horizontal surface portion 3040B.
  • the lamp unit 3010 irradiates the light from each light source 52 reflected by the reflector 3054 toward the front of the lamp via the spatial light modulator 30 and the projection lens 3072, thereby displaying characters, symbols, etc. on the road surface in front of the vehicle.
  • the light distribution pattern to be drawn (that is, the light distribution pattern for road surface drawing) can be formed with high accuracy.
  • a heat sink 80 and a heat radiating fan 82 for dissipating heat generated by lighting each light source 52 are arranged on the front side of the lamp and below the lens side sub-assy 3070 on the light source side sub-assy 3050. ing.
  • the heat sink 80 is connected to the heat transfer plate 62 of the light source side subassy 3050 via a heat transfer plate 84 and a pair of left and right heat pipes 86.
  • FIG. 42 is a detailed view of a main part of FIG. 39 showing a detailed structure of the spatial light modulation unit 20.
  • the spatial light modulator 30 is a digital micromirror device (DMD) and includes a reflection control unit 30A, a housing unit 30B, and a light transmissive plate 30C.
  • DMD digital micromirror device
  • the spatial light modulator 30 reflects the light from each light source 52 that has reached each reflecting element 30As by controlling the angle of each reflecting surface of the plurality of reflecting elements 30As constituting the reflection control unit 30A.
  • the direction can be selectively switched. Specifically, the first angular position that reflects the light from each light source 52 in the direction of the optical path R1 toward the projection lens 3072 (the direction shown by the solid line in FIG. 42) and the direction deviating from the projection lens 3072 (that is, the arrangement).
  • a second angular position that reflects in the direction of the optical path R2 (the direction indicated by the two-point chain line in FIG. 42) toward the direction that does not adversely affect the formation of the light pattern is selected.
  • the detailed configuration of each reflection element 30As constituting the reflection control unit 30A is the same as the configuration of the reflection control unit 30A of the first embodiment shown in FIG. Twice
  • the spatial light modulator 30 is supported from both sides in the front-rear direction of the lamp by the vertical facing portion 3040A of the bracket 3040 and the heat sink 24. At that time, a plate-shaped member 3032 and a gasket 34 are arranged between the vertical facing portion 3040A of the bracket 3040 and the spatial light modulator 30.
  • the vertical facing portion 3040A of the bracket 3040 is formed with an opening 40Aa surrounding the translucent plate 30C of the spatial light modulator 30, and the plate-shaped member 3032 is formed with an opening 32a slightly smaller than the opening 40Aa. Has been done.
  • the vertical facing portion 3040A of the bracket 3040 is supported by a dustproof transparent cover 3036 that covers the opening 40Aa from the front side of the lamp.
  • the translucent cover 3036 is fixed to the vertical facing portion 3040A of the bracket 3040 by screwing on both the left and right sides thereof.
  • the projection lens 3072 is composed of a first lens 3072A, a second lens 3072B, and a third lens 3072C arranged side by side in the front-rear direction of the lamp on the optical axis Ax.
  • the first lens 3072A located on the front side of the lamp is configured as a plano-convex lens that bulges toward the front of the lamp.
  • the second lens 3072B located at the center is configured as a biconcave lens.
  • the third lens 3072C, which is located most rearward of the lamp, is configured as a biconvex lens.
  • the first lens 3072A to the third lens 3072C are all made of resin lenses. Specifically, the first lens 3072A and the third lens 3072C are made of acrylic resin, and the second lens 3072B is made of polycarbonate resin.
  • the first lens 3072A to the third lens 3072C have a configuration in which the upper end portion thereof is slightly cut off along the horizontal plane and the lower end portion thereof is cut off relatively large along the horizontal plane.
  • the first lens 3072A to the third lens 3072C are supported by a common lens holder 3074 at the outer peripheral edge thereof.
  • the optical axis Ax of the projection lens 3072 is displaced downward with respect to the central axis Ax1 of the reflection control unit 30A of the spatial light modulator 30, the light that reaches the projection lens 3072 from the reflection control unit 30A can be received.
  • Light is emitted from the projection lens 3072 toward the front of the lamp as light slightly downward in the horizontal direction, whereby a light distribution pattern for drawing the road surface is formed on the road surface in front of the vehicle.
  • FIG. 43 is a perspective view showing the lamp unit 3010 as viewed from diagonally upper left and forward.
  • the lens holder 3074 is a member made of metal (for example, made of aluminum die-cast), and the holder body 3074A formed so as to surround the projection lens 3072 in a tubular shape, and the holder body 3074A.
  • the first metal fitting 3076A is attached to the holder body 3074A from the front side of the lamp, and the second metal fitting 3076B is attached from the rear side of the lamp, whereby the first lens 3072A to the third lens 3072C are fixed to the holder body 3074A. It is configured to be.
  • the pair of left and right legs 3074B are placed on the horizontal surface portion 3040B of the bracket 3040 at the tip thereof.
  • the horizontal surface portion 3040B of the bracket 3040 is formed with a pair of left and right engaging groove portions 3040Ba that engage with the tip portions of the pair of left and right leg portions 3074B.
  • each leg 3074B is formed so as to extend in the front-rear direction of the lamp and extend in the direction directly below, and its lower end surface is in contact with the bottom surface of each engagement groove 3040Ba.
  • Each engaging groove portion 3040Ba has a left-right width slightly wider than the tip portion of each leg portion 3074B, and is formed so as to extend in the front-rear direction of the lamp longer than the tip portion of each leg portion 3074B.
  • the lens holder 3074 is configured to be able to slide in the front-rear direction of the lamp with respect to the bracket 3040.
  • the pair of left and right flange portions 3074C are formed so as to extend in a plate shape along the vertical plane orthogonal to the optical axis Ax at the same height position as the optical axis Ax of the projection lens 3072, and the tip portion thereof is a lamp. Screw holes 3074Ca extending in the front-rear direction are formed respectively.
  • the lamp unit 3010 is provided with an adjustment mechanism 90 for adjusting the relative positional relationship between the bracket 3040 and the lens holder 3074 in the front-rear direction of the lamp so that it can be operated from outside the lamp room of the vehicle lamp 3100. ..
  • a pair of left and right screw 92 supported in a manner rotatable around an axis Ax2 extending in the front-rear direction of the lamp with respect to the bracket 3040 is screwed with a pair of left and right flange portions 3074C of the lens holder 3074. It is composed by doing.
  • each screw 92 is rotatably supported with respect to the bracket 3040 in an intermediate portion of the shaft portion in a state of being inserted into a screw insertion hole (not shown) formed in the bracket 3040. .. At that time, each screw 92 is positioned in the front-rear direction of the lamp by mounting a pair of front and rear holding metal fittings 94 between each screw 92 and the bracket 3040.
  • Each screw 92 is screwed with a screw hole 3074Ca formed in each flange portion 3074C of the lens holder 3074 at a screw portion 92a formed at the tip end portion (front end portion) thereof, and the base end portion (rear) thereof.
  • the rotation operation is performed on the screw head 92b formed at the end portion).
  • the focus alignment of the projection lens 3072 is performed by operating each screw 92 to adjust the relative positional relationship between the bracket 3040 and the lens holder 3074 in the front-rear direction of the lamp.
  • the pitch of the screw portions 92a of each screw 92 is a value finer than the pitch of the screw portions 14a and 16a of the aiming screws 14 and 16 so that the focusing alignment can be performed with high accuracy. (For example, a value of about 1/4 to 3/4) is set.
  • the lamp body 102 has a pair of left and right openings at positions corresponding to a pair of left and right screw 92.
  • the portion 102a is formed.
  • a rubber cap 96 for closing each opening 102a is attached to the base end of each screw 92.
  • Each rubber cap 96 is attached to the lamp body 102 around each opening 102a.
  • the lens holder 3074 is supported by the vertical facing portion 3040A of the bracket 3040 via a pair of left and right screw 92s, but the lens holder 3074 is a bracket at the tip of the pair of left and right legs 3074B. Since the lamp is mounted on the horizontal surface portion 3040B of the 3040 in a state where it can slide in the front-rear direction of the lamp, an unreasonable load acts on the screwed portion between the pair of left and right screw 92s and the pair of left and right flange portions 3074C. There is nothing to do.
  • the figure that transparently shows the light distribution pattern PA formed on the virtual vertical screen arranged at a position 25 m in front of the vehicle by the irradiation light from the vehicle lamp 3100 according to the present embodiment is the same as that of FIG.
  • the lamp unit 3010 housed in the lamp chamber irradiates the light from the light source 52 reflected by the spatial light modulator 30 toward the front of the lamp via the projection lens 3072. Therefore, by controlling the spatial distribution of the reflected light in the spatial light modulator 30, various road surface drawing light distribution patterns PA can be formed with high accuracy.
  • the lamp unit 3010 includes an adjustment mechanism 90 for adjusting the relative positional relationship between the bracket 3040 supporting the spatial light modulator 30 and the lens holder 3074 supporting the projection lens 3072 in the front-rear direction of the lamp. Since the adjusting mechanism 90 is provided so as to be operable from outside the lighting room, the following effects can be obtained.
  • the lamp unit 3010 alone is a projection optical system (that is, the translucent cover 3036 and the projection). Even if the focal point of the projection optical system including the lens 3072 is in the original position, the projection optical system as a whole of the vehicle lighting equipment 3100 (that is, the transparent cover 3036 of the lighting equipment unit 3010 and the transparent cover as well as the projection lens 3072).
  • the focal point of the projection optical system including 104) may be slightly deviated from the original position in the front-rear direction of the lamp.
  • the adjustment mechanism 90 by operating the adjustment mechanism 90 from outside the lamp room to adjust the relative positional relationship between the bracket 3040 and the lens holder 3074 in the front-rear direction of the lamp, the focal point of the projection optical system can be adjusted to the original position. .. Therefore, this makes it possible to accurately form the light distribution pattern PA for drawing the road surface.
  • the light distribution pattern PA for road surface drawing is accurately formed in the vehicle lamp 3100 in which the lamp unit 3010 including the spatial light modulator 30 and the projection lens 3072 is housed in the lamp chamber. can do.
  • the vehicle lamp 3100 has a configuration in which the lamp unit 3010 is supported so as to be aimable in the vertical direction and the horizontal direction with respect to the lamp body 102.
  • the focus is slightly deviated from the original position in the front-back direction of the lamp. Therefore, it is particularly effective to adopt the configuration of the present embodiment.
  • the lens holder 3074 is supported with respect to the bracket 3040 in a slidable manner in the front-rear direction of the lamp, the direction perpendicular to the front-rear direction of the lamp between the spatial light modulator 30 and the projection lens 3072. It is possible to prevent the relative positional relationship of the lenses from being inadvertently displaced, and to prevent an unreasonable load from acting on the adjusting mechanism 90.
  • the adjusting mechanism 90 of the present embodiment is configured by screwing a screw 92 supported with respect to the bracket 3040 so as to be rotatable around the axis Ax2 extending in the front-rear direction of the lamp with the lens holder 3074.
  • the focus of the projection optical system can be adjusted to the original position while the position of the screw 92 is kept substantially constant, and the focus of the projection optical system can be adjusted to the original position after simplifying the lamp configuration. Can be done.
  • the screw 92 is arranged on both the left and right sides of the lens holder 3074, it is possible to stably support the lens holder 3074.
  • the pitch of the screw portions 92a of each screw 92 is set to a value finer than the pitch of the screw portions 14a and 16a of the aiming screws 14 and 16, so that the focal point of the projection optical system is originally set. It is possible to easily adjust to the position with high accuracy.
  • the pair of left and right screws 92 are directly screwed to the pair of left and right flange portions 3074C of the lens holder 3074, but a resin adjusting nut or the like is used. It is also possible to have a configuration in which the left and right flange portions 3074C are screwed with each other. Further, the screw 92 may be configured to be screwed with the lens holder via a nut or the like.
  • the adjusting mechanism 90 is such that a screw 92 supported in a manner rotatable around an axis Ax2 extending in the front-rear direction of the lamp with respect to the bracket 3040 is screwed with the lens holder 3074.
  • the screw 92 screwed with the bracket 3040 in a state of being arranged so as to extend in the front-rear direction of the lamp is connected to the lens holder 3074.
  • FIG. 44 is a diagram similar to FIG. 41 showing the vehicle lighting equipment 3200 according to the present modification.
  • the basic configuration of this modification is the same as that of the fourth embodiment, but the relative positional relationship between the bracket 3140 in the lamp unit 3110 and the lens holder 174 of the lens side sub-assy 170 in the front-rear direction of the lamp is adjusted.
  • the configuration of the adjusting mechanism 190 for this purpose is partially different from that of the fourth embodiment, and accordingly, the configuration of the lamp body 202 is also partially different from that of the fourth embodiment.
  • a pair of left and right screws 192 supported in a manner rotatable around an axis extending in the front-rear direction of the lamp with respect to the lamp body 202 are screwed with the lens holder 174. It is configured.
  • each screw 192 is screwed with a resin adjusting nut 198 attached to each flange portion 174C of the lens holder 174 at a screw portion 192a formed at the tip portion (front end portion) thereof. ..
  • the adjusting nut 198 is attached to the flange portion 174C in such a manner that even if the inclination angle of the lens holder 174 with respect to the screw 192 changes slightly, it can be absorbed.
  • each screw 192 is rotatably supported by the lamp body 202 at its base end (rear end), and a rotation operation is performed at its screw head 192b.
  • the vertical facing portion 3140A of the bracket 3140 is formed with an insertion hole 3140Ab for inserting a pair of left and right screw 192s, thereby avoiding interference between the bracket 3140 and the pair of left and right screws 192. It has become.
  • the lens holder 174 of this modification also includes a holder body 174A and a pair of left and right legs 174B similar to the lens holder 3074 of the fourth embodiment. Further, the bracket 3140 of the present modification also has a pair of left and right engaging groove portions 3140Ba formed on the horizontal surface portion 3140B so as to engage with the tip portions of the pair of left and right leg portions 174B.
  • the adjustment mechanism 190 is operated from outside the lamp chamber to adjust the relative positional relationship between the bracket 3140 and the lens holder 174 in the front-rear direction of the lamp, thereby adjusting the lamp interior.
  • the projection optical system as the vehicle lamp 3200 in which the unit 3110 is housed can be focused to the original position.
  • the lens holder 174 slides in the lamp front-rear direction with respect to the bracket 3140 and is relative to the lamp front-rear direction.
  • the positional relationship will change, but in such a case, the adjustment mechanism 190 should be operated from outside the lamp room to adjust the relative positional relationship between the bracket 3140 and the lens holder 174 in the front-rear direction of the lamp. Just do it.
  • the lamp unit 3110 is not aimed after the assembly is completed, so it is particularly effective to adopt the configuration of this modification.
  • FIG. 45 is a diagram similar to FIG. 40 showing the vehicle lamp 3300 according to the present modification.
  • the basic configuration of this modification is the same as that of the fourth embodiment, but the lamp unit 3210 has a configuration for supporting the lens holder 274 with respect to the bracket 240 in a slidable manner in the front-rear direction of the lamp. It is different from the case of the fourth embodiment.
  • the lens holder 274 of this modification includes the same holder body 274A and a pair of left and right flange portions 274C as the lens holder 3074 of the fourth embodiment, but the left and right 1 of the lens holder 3074 of the fourth embodiment.
  • a single leg 274B is provided instead of the pair of legs 3074B.
  • the leg portion 274B protrudes downward from the holder main body 274A at a position directly below the optical axis Ax of the projection lens 3072, and its tip portion is formed so as to extend to both the left and right sides.
  • bracket 240 of the present modification includes the same vertical surface portion 240A and horizontal plane portion 240B as the bracket 3040 of the fourth embodiment, but the horizontal plane portion 240B has one left and right of the bracket 240 of the fourth embodiment.
  • a single engaging groove 240Ba is formed in place of the paired engaging groove 40Ba.
  • the engaging groove portion 240Ba is formed so as to extend in the front-rear direction of the lamp with a wider left-right width than the tip portion of the leg portion 274B of the lens holder 274. Further, the horizontal surface portion 240B of the bracket 240 is formed with a pair of left and right overhanging portions 240Bb that project horizontally so as to cover the tip end portion of the leg portion 274B from the upper side.
  • the leg portion 274B of the lens holder 274 is inserted into the engaging groove portion 240Ba of the bracket 240 from the front side of the lamp, so that the lens holder 274 is placed on the horizontal surface portion 240B of the bracket 240. In this state, the leg portion 274B and the engaging groove portion 240Ba are engaged.
  • the lens holder 274 is supported in a manner that allows it to slide in the front-rear direction of the lamp with respect to the bracket 240, the spatial light modulator 30 and the projection lens 3072 are supported in the front-rear direction of the lamp.
  • the relative positional relationship in the direction orthogonal to the light can be prevented from being inadvertently displaced, and an unreasonable load can be prevented from acting on the adjusting mechanism 90.
  • the present disclosure is not limited to the configuration described in the above embodiment and its modification, and a configuration with various other modifications can be adopted.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
PCT/JP2021/009037 2020-03-10 2021-03-08 灯具ユニットおよび車両用灯具 WO2021182410A1 (ja)

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JP2020-040554 2020-03-10
JP2020040554A JP2021144786A (ja) 2020-03-10 2020-03-10 灯具ユニット
JP2020-046155 2020-03-17
JP2020046155A JP2021150054A (ja) 2020-03-17 2020-03-17 車両用灯具
JP2020-068815 2020-04-07
JP2020068815A JP7433120B2 (ja) 2020-04-07 2020-04-07 灯具ユニット
JP2020-070773 2020-04-10
JP2020070773A JP2021168250A (ja) 2020-04-10 2020-04-10 車両用灯具

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021132692A1 (de) 2021-12-10 2023-06-15 Marelli Automotive Lighting Reutlingen (Germany) GmbH Lichtmodul eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014022200A (ja) * 2012-07-18 2014-02-03 Koito Mfg Co Ltd 車輌用前照灯
WO2017164328A1 (ja) * 2016-03-24 2017-09-28 株式会社小糸製作所 車両用灯具、車両用灯具制御システムおよびこれらを備えた車両
US20190176683A1 (en) * 2017-12-08 2019-06-13 Hyundai Motor Company Lamp apparatus for vehicle
JP2020009715A (ja) * 2018-07-12 2020-01-16 株式会社小糸製作所 車両用灯具

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7221680B2 (ja) * 2018-12-27 2023-02-14 株式会社小糸製作所 灯具ユニット
JP7112253B2 (ja) * 2018-05-28 2022-08-03 株式会社小糸製作所 車両用灯具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014022200A (ja) * 2012-07-18 2014-02-03 Koito Mfg Co Ltd 車輌用前照灯
WO2017164328A1 (ja) * 2016-03-24 2017-09-28 株式会社小糸製作所 車両用灯具、車両用灯具制御システムおよびこれらを備えた車両
US20190176683A1 (en) * 2017-12-08 2019-06-13 Hyundai Motor Company Lamp apparatus for vehicle
JP2020009715A (ja) * 2018-07-12 2020-01-16 株式会社小糸製作所 車両用灯具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021132692A1 (de) 2021-12-10 2023-06-15 Marelli Automotive Lighting Reutlingen (Germany) GmbH Lichtmodul eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul

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