JP2019185971A - Lighting fixture for vehicle - Google Patents

Abstract

To provide a lighting fixture for a vehicle configured so that light from a light source is emitted toward a region in front of the lighting fixture via a spatial light modulator and a projection lens, in which the spatial light modulator can be arranged with high positional accuracy with respect to the projection lens.SOLUTION: A lens holder 64 supporting a projection lens 62 is screwed and fixed to a bracket 40 supporting a spatial light modulator 32. At this time, a positioning pin 64Bb for positioning the lens holder 64 to the bracket 40 in a right-left direction is inserted into a long hole 40Bc formed in the bracket 40 and extending in a lighting fixture back-and-forth direction. Then, by performing screw fastening fixation in a state that the positioning pin 64Bb is inserted into the long hole 40Bc and properly moved in the lighting fixture back-and-forth direction to restrict displacement of the lens holder 64 in the back-and-forth direction with respect to the bracket 40, a positional relationship between the projection lens 62 and spatial light modulator 32 in the lighting fixture back-and-forth direction can be finely adjusted.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicular lamp configured to irradiate light from a light source toward the front of the lamp through a spatial light modulator and a projection lens.

  Conventionally, as a configuration of a vehicular lamp, as described in, for example, “Patent Document 1”, light from a light source is irradiated toward the front of the lamp via a spatial light modulator and a projection lens. Is known.

JP, 2006-91976, A

  In such a vehicular lamp, it is possible to accurately form various light distribution patterns by controlling the spatial distribution of light reaching the projection lens in the spatial light modulator.

  However, in order to realize this, it is necessary to arrange the spatial light modulator with high positional accuracy with respect to the projection lens.

  The present invention has been made in view of such circumstances, and in a vehicular lamp configured to irradiate light from a light source toward the front of the lamp through a spatial light modulator and a projection lens, An object of the present invention is to provide a vehicular lamp in which a spatial light modulator can be arranged with high positional accuracy with respect to a projection lens.

  The present invention is intended to achieve the above object by devising the support structure of the projection lens.

That is, the vehicular lamp according to the first invention of the present application is:
In a vehicle lamp configured to irradiate light from a light source toward the front of the lamp through a spatial light modulator and a projection lens,
The lens holder that supports the projection lens is fixed to the bracket that supports the spatial light modulator by mechanical fastening,
The lens holder is formed with a positioning projection for positioning the lens holder in a direction perpendicular to the lamp front-rear direction with respect to the bracket.
The bracket is formed with a long hole extending in the front-rear direction of the lamp,
The fixing by the mechanical fastening is performed in a state where the positioning protrusion is inserted into the long hole.

The vehicular lamp according to the second invention of the present application is:
In a vehicle lamp configured to irradiate light from a light source toward the front of the lamp through a spatial light modulator and a projection lens,
The lens holder that supports the projection lens is fixed to the bracket that supports the spatial light modulator by mechanical fastening,
A positioning projection for positioning the bracket in a direction perpendicular to the lamp front-rear direction with respect to the lens holder is formed on the bracket,
In the lens holder, a long hole extending in the lamp front-rear direction is formed,
The fixing by the mechanical fastening is performed in a state where the positioning protrusion is inserted into the long hole.

  The “spatial light modulator” is not particularly limited in its specific configuration as long as it can control the spatial distribution of light reaching the projection lens. A thing using a mirror, a thing using transmissive liquid crystal, or reflective liquid crystal, etc. are employable.

  The specific mode of the “mechanical fastening” is not particularly limited, and for example, a fastening structure such as screw fastening or clip fastening can be employed.

  Since the vehicular lamp according to the present invention is configured to irradiate light from the light source toward the front of the lamp via the spatial light modulator and the projection lens, the light that reaches the projection lens in the spatial light modulator. By controlling the spatial distribution, various light distribution patterns can be formed with high accuracy.

  In that case, in the vehicular lamp according to the present invention, since the lens holder that supports the projection lens is fixed to the bracket that supports the spatial light modulator by mechanical fastening, the projection lens and the spatial light modulator Support can be ensured.

  In addition, in the first invention of the present application, the lens holder is provided with a positioning projection for positioning the lens holder in a direction orthogonal to the lamp front-rear direction with respect to the bracket. Since a long hole extending in the front-rear direction is formed, and fixing is performed by mechanical fastening in a state in which the positioning projection is inserted into the long hole, the following effects can be obtained. it can.

  That is, the lens holder is perpendicular to the lamp front-rear direction with respect to the bracket by inserting the positioning protrusion of the lens holder into the long hole of the bracket and moving it appropriately in the front-rear direction of the lamp. It is possible to finely adjust the positional relationship between the projection lens supported by the lens holder and the spatial light modulator supported by the bracket in the front-rear direction of the lamp. Thus, the spatial light modulator can be arranged with high positional accuracy with respect to the projection lens.

  In the second invention of the present application, the bracket is formed with a positioning projection for positioning the lens holder with respect to the bracket in a direction orthogonal to the lamp front-rear direction, and the lens holder is provided with the lamp front-rear direction. Since a long hole extending in the hole is formed, and fixing is performed by mechanical fastening in a state where the positioning projection is inserted into the long hole, the following operational effects can be obtained.

  In other words, the lens holder is perpendicular to the lamp front-rear direction with respect to the bracket by inserting the positioning protrusion of the bracket into the elongated hole of the lens holder and fixing it by mechanical fastening in a state where it is appropriately moved in the lamp front-rear direction. It is possible to finely adjust the positional relationship between the projection lens supported by the lens holder and the spatial light modulator supported by the bracket in the front-rear direction of the lamp. Thus, the spatial light modulator can be arranged with high positional accuracy with respect to the projection lens.

  Thus, according to the present invention, in the vehicular lamp configured to irradiate the light from the light source toward the front of the lamp via the spatial light modulator and the projection lens, the spatial light modulator is applied to the projection lens. Can be placed with high positional accuracy.

  In the above configuration, the positioning projection may be configured by a single positioning pin as a specific configuration. However, this positioning may be performed by two positioning units arranged at intervals in the lamp front-rear direction. If it is constituted by a pin, the rigidity as the positioning projection can be increased.

  In the above configuration, if the positioning projection is configured by a standing wall extending in the front-rear direction of the lamp, the rigidity as the positioning projection is greatly increased as compared to the case where the positioning projection is configured by one positioning pin. Can do.

  In the above configuration, if the positioning projection is caulked and fixed to the bracket or the lens holder around the long hole, the positional relationship between the projection lens supported by the lens holder and the spatial light modulator supported by the bracket Can be easily maintained in a state where fine adjustment in the front-rear direction of the lamp is completed. In this case, the “caulking and fixing” may be performed by hot caulking or by cold caulking. It is also possible to employ laser welding or the like instead of the above “caulking”.

  In the above configuration, if the fixing by the mechanical fastening is performed at two positions on the left and right sides of the projection lens, the projection lens can be supported more reliably. At that time, if the positioning projections and the long holes are respectively arranged between the front and rear two positions on each of the left and right sides of the projection lens, the positioning projections are reliably maintained in the state of being inserted into the long holes. And the positioning function can be enhanced.

The front view which shows the vehicle lamp which concerns on 1st Embodiment of this invention. II-II sectional view of FIG. III-III sectional view of FIG. The exploded perspective view which shows the lens side subassembly of the said vehicle lamp with the bracket of a spatial light modulator subassembly FIGS. 3A and 3B are views similar to FIGS. 3A and 3B showing a first modification and a second modification of the first embodiment, and FIG. 5B is a view showing a first modification, and FIG. FIGS. 3A and 3B show the third and fourth modifications of the first embodiment, and are substantially the same as FIGS. 3A and 3B, and FIG. 3B shows the third modification, and FIG. The figure similar to FIG. 3 which shows the vehicle lamp which concerns on 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, a first embodiment of the present invention will be described.

  FIG. 1 is a front view showing a vehicular lamp 10 according to the first embodiment of the present invention, and shows a part thereof as a cross-sectional view. 2 is a cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along line III-III in FIG.

  In these drawings, the direction indicated by X is “front” as a lamp (“front” as a vehicle), and the direction indicated by Y is “left” (“left direction” as a vehicle) orthogonal to “front”. However, it is “right direction” in the front view of the lamp, and the direction indicated by Z is “upward direction”. The same applies to other figures.

  As shown in these drawings, the vehicular lamp 10 according to the present embodiment is a headlamp provided at the front end of a vehicle, and is incorporated in a lamp chamber formed by a lamp body and a translucent cover (not shown). It is configured as a projector-type lamp unit.

  The vehicular lamp 10 includes a light source side subassembly 20, a spatial light modulator subassembly 30, and a lens side subassembly 60.

  The light source side sub-assembly 20 includes a light source 22, a reflector 24 that reflects light emitted from the light source 22 toward the spatial light modulator sub-assembly 30, and a base member 26 that supports them. Yes.

  The spatial light modulator sub-assembly 30 includes a spatial light modulator 32, a support substrate 36 disposed on the rear side of the lamp relative to the spatial light modulator 32, and a bracket disposed on the front side of the lamp relative to the support substrate 36. 40 and a heat sink 50 disposed on the rear side of the lamp with respect to the spatial light modulator 32.

  The lens-side subassembly 60 includes a projection lens 62 having an optical axis Ax extending in the vehicle front-rear direction, and a lens holder 64 that supports the projection lens 62.

  The vehicular lamp 10 according to this embodiment irradiates the light from the light source 22 reflected by the reflector 24 toward the front of the lamp via the spatial light modulator 32 and the projection lens 62, thereby providing various light distributions. A pattern (for example, a light distribution pattern for a low beam, a light distribution pattern for a high beam, a light distribution pattern that changes in accordance with the vehicle driving condition, or a light distribution pattern that draws characters or symbols on the road surface in front of the vehicle) is accurately formed. It is the structure to obtain.

  In order to realize this, in the assembly process of the vehicular lamp 10, the positional relationship between the spatial light modulator 32 and the projection lens 62 is finely adjusted in a state where the light source 22 is turned on to form a light distribution pattern. The positional relation accuracy is improved.

  The vehicular lamp 10 is supported by the lamp body at the bracket 40 or the heat sink 50 of the spatial light modulator sub-assembly 30.

  Next, specific configurations of each of the light source side sub-assembly 20, the spatial light modulator sub-assembly 30, and the lens-side sub-assembly 60 will be described.

  First, the configuration of the light source side sub-assembly 20 will be described.

  The light source 22 is a white light emitting diode, and is fixedly supported by the base member 26 with its light emitting surface facing obliquely upward and forward. The base member 26 is fixedly supported on the bracket 40 of the spatial light modulator subassembly 30.

  The reflector 24 is disposed so as to cover the light source 22 from the front side of the lamp, and is fixedly supported by the base member 26 at the peripheral edge thereof. The reflector 26 reflects light emitted from the light source 22 obliquely upward and rearward. At this time, the reflecting surface 24 a of the reflector 24 is formed so as to converge the light emitted from the light source 22 in the vicinity of the rear focal plane including the rear focal point F of the projection lens 62.

  Next, the configuration of the spatial light modulator subassembly 30 will be described.

  The spatial light modulator 32 is a reflective spatial light modulator, and is composed of a digital micromirror device (DMD) in which a plurality of micromirrors are arranged in a matrix.

  The spatial light modulator 32 is configured to selectively switch the reflection direction of light from the light source 22 that has reached the spatial light modulator 32 by controlling the angle of the reflection surface of each of the plurality of micromirrors. It has become. Specifically, a mode in which the light from the light source 22 is reflected toward the projection lens 62 and a mode in which the light is reflected in the other direction (that is, a direction that does not adversely affect the formation of the light distribution pattern) are selected. It is like that.

  The spatial light modulator 32 is disposed along a vertical plane orthogonal to the optical axis Ax at the position of the rear focal point F of the projection lens 62, and the reflected light control region 32a is horizontally long with the optical axis Ax as the center. It has a rectangular outer shape.

  The spatial light modulator 32 is supported by a support substrate 36 via a socket 34 on the rear surface of a peripheral edge portion 32b surrounding the reflected light control region 32a.

  The socket 34 is configured as a horizontally long rectangular frame member along the peripheral edge 32b of the spatial light modulator 32, and is electrically connected to a conductive pattern (not shown) formed on the support substrate 36. And fixed to the support substrate 36 by soldering or the like. An opening 36 a having substantially the same shape as the inner peripheral edge shape of the socket 34 is formed in the support substrate 36.

  A plurality of terminal pins 32 c projecting from the rear surface toward the rear of the lamp are formed on the peripheral edge portion 32 b of the spatial light modulator 32, and a plurality of fittings in which the plurality of terminal pins 32 c are formed in the socket 34 are formed. The socket 34 is electrically connected by being fitted into a hole (not shown).

  The spatial light modulator 32 is supported by the bracket 40 and the heat sink 50 from both sides in the lamp front-rear direction.

  The bracket 40 is a member made of metal (for example, made of aluminum die casting), and has a vertical surface portion 40A extending along a vertical surface orthogonal to the optical axis Ax, and a horizontal surface from the lower end edge of the vertical surface portion 40A toward the front of the lamp. It is the structure provided with the horizontal surface part 40B extended along.

  In the vertical surface portion 40A, a horizontally-long rectangular opening 40Aa is formed around the optical axis Ax. The opening 40Aa has a horizontally-long rectangular opening shape that is smaller than the outer peripheral edge shape of the spatial light modulator 32 but larger than the reflected light control region 32a, and the front edge of the inner peripheral surface is the entire circumference. It is chamfered over.

  On the rear surface of the vertical surface portion 40A, columnar protrusions 40Ab protruding to the rear side of the lamp are formed at three locations around the opening 40Aa. The bracket 40 comes into contact with the peripheral edge portion 32b of the spatial light modulator 32 from the front side of the lamp at the rear end face of the three protrusions 40Ab.

  The horizontal plane portion 40B is formed so as to extend to the front side of the lamp from the reflector 24, and a horizontally long rectangular opening 40Ba for inserting the reflector 24 is formed in the horizontal plane portion 40B.

  The heat sink 50 is a member made of metal (for example, made of aluminum die casting) and is disposed so as to extend along a vertical plane orthogonal to the optical axis Ax, and a plurality of heat radiating fins 50b are vertically striped on the rear surface. Is formed.

  On the front surface of the heat sink 50, a prismatic protrusion 50c that protrudes toward the front side of the lamp is formed. The protrusion 50 c has a horizontally-long rectangular cross section centered on the optical axis Ax, and the size thereof is set to a value smaller than the inner peripheral surface shape of the socket 34. The projection 50c is inserted through the opening 36a of the support substrate 36, and the rear end of the lamp with respect to the central portion of the spatial light modulator 32 (that is, the portion where the reflected light control region 32a is located) on the front end surface thereof. It comes to contact from the side.

  The spatial light modulator subassembly 30 has a configuration in which a plurality of stepped bolts 52 are arranged around the spatial light modulator 32. Specifically, four stepped bolts 52 are arranged at two positions on the left and right sides of the spatial light modulator 32.

  Each stepped bolt 52 is arranged so as to be inserted from the rear side of the lamp through a bolt insertion hole 50a formed in the heat sink 50 and a bolt insertion hole 36b formed in the support substrate 36, and a small diameter portion at the tip thereof. It is screwed to the bracket 40 at 52a. In order to realize this, the bracket 40 is formed with boss portions 40Ac for screwing the small diameter portions 52a of the stepped bolts 52 at four locations corresponding to the four stepped bolts 52.

  A spring 54 for elastically pressing the heat sink 50 toward the front side of the lamp is attached to the large diameter portion 52b of each stepped bolt 52. Each spring 54 is composed of a compression coil spring disposed between the head 52 c of each stepped bolt 52 and the heat sink 50.

  In such a state that an unreasonable load is not applied to the spatial light modulator by elastically pressing the heat sink 50 toward the front side of the lamp at the upper and lower two positions on both the left and right sides of the spatial light modulator 32, The central part is elastically pressed toward the front side of the lamp. As a result, the plurality of terminal pins 32c formed on the peripheral edge portion 32b of the spatial light modulator 32 are properly fitted in the fitting holes of the socket 34 (that is, the electrical connection between the spatial light modulator 32 and the socket 34). It is designed to maintain a reliable connection).

  Next, the configuration of the lens side sub-assembly 60 will be described.

  The projection lens 62 includes first and second lenses 62A and 62B that are arranged on the optical axis Ax with a required interval in the front-rear direction of the lamp.

  The first lens 62A positioned on the front side of the lamp is configured as a biconvex lens, and the second lens 62B positioned on the rear side of the lamp is configured as a concave meniscus lens that bulges toward the rear of the lamp. At this time, the first and second lenses 62A and 62B are configured such that the upper end portions thereof are slightly cut along the horizontal plane and the lower portions thereof are cut relatively large along the horizontal plane.

  And these 1st and 2nd lenses 62A and 62B are supported by the common lens holder 64 in the outer periphery part.

  The lens holder 64 is a member made of metal (for example, made of aluminum die casting), and includes a holder main body 64A formed so as to surround the projection lens 62 in a cylindrical shape, and a horizontal plane at the lower end portion of the outer peripheral surface of the holder main body 64A. And a pair of flange portions 64B formed so as to protrude to both the left and right sides.

  A protrusion 64Aa for positioning the first and second lenses 62A and 62B is formed on the inner peripheral surface of the holder body 64A. On the other hand, the pair of left and right flange portions 64B are formed in a flat plate shape so as to extend in the front-rear direction of the lamp over the entire length of the lens holder 64 with a constant left-right width.

  FIG. 4 is an exploded perspective view showing the lens-side subassembly 60 together with the bracket 40 of the spatial light modulator subassembly 30.

  As also shown in the figure, the lens holder 64 is fixed to the horizontal surface portion 40B of the bracket 40 of the spatial light modulator subassembly 30 by mechanical fastening at the pair of left and right flange portions 64B. The fixing by the mechanical fastening is performed by screw fastening.

  In order to achieve this, each flange portion 64B of the lens holder 64 is formed with a pair of front and rear screw insertion holes 64Ba penetrating the flange portion 64B in the vertical direction. Further, a pair of front and rear boss portions 40Bb having screw holes 40Bb1 are formed on the horizontal surface portion 40B of the bracket 40 so as to protrude downward. The screws 66 are screwed into the screw holes of the boss portions 40Bb from above the flange portions 64B through the screw insertion holes 64Ba.

  At this time, each screw insertion hole 64Ba is formed as a long hole extending in the front-rear direction of the lamp with a lateral width larger than the screw diameter of each screw 66, whereby the lens holder 64 is positioned in the front-rear direction of the lamp with respect to the bracket 40. The screw can be tightened in the adjusted state.

  On the lower surface of each flange portion 64B of the lens holder 64, a positioning pin 64Bb is formed that protrudes vertically downward at the center position in the front-rear direction of the pair of front and rear screw insertion holes 64Ba. Each positioning pin 64Bb is formed in a cylindrical shape, and its tip is formed in a convex curved surface shape. Further, the downward projecting amount of each positioning pin 64Bb from the flange portion 264B is set to a value slightly larger than the plate thickness of the horizontal surface portion 40B of the bracket 40.

  On the other hand, in the horizontal surface portion 40B of the bracket 40, a long hole 40Bc penetrating the horizontal surface portion 40B in the vertical direction is formed at a position corresponding to each positioning pin 64Bb. Each long hole 40Bc is formed as a long hole extending in the front-rear direction of the lamp with a lateral width slightly larger than the diameter of the positioning pin 64Bb.

  When the lens holder 64 is screwed to the bracket 40, the lens holder 64 is prevented from being displaced in the left-right direction with respect to the bracket 40 by inserting the positioning pin 64Bb into the elongated hole 40Bc in advance. Above, the positional relationship between the lens holder 64 and the bracket 40 in the front-rear direction of the lamp can be finely adjusted. As a result, the lens holder 64 is prevented from inadvertently rotating with respect to the bracket 40 due to the torque generated when the screws are tightened, and the positional relationship accuracy between the spatial light modulator 32 and the projection lens 62 is improved. ing.

  Next, the operation of this embodiment will be described.

  Since the vehicular lamp 10 according to the present embodiment is configured to irradiate the light from the light source 22 toward the front of the lamp via the spatial light modulator 32 and the projection lens 62, the light is projected by the spatial light modulator 32. By controlling the spatial distribution of the light reaching the lens 62, various light distribution patterns can be formed with high accuracy.

  At that time, in the vehicular lamp 10 according to the present embodiment, the lens holder 64 that supports the projection lens 62 is fixed to the bracket 40 that supports the spatial light modulator 32 by screw tightening (that is, mechanical fastening). Therefore, the projection lens 62 and the spatial light modulator 32 can be reliably supported.

  In addition, the lens holder 64 is formed with positioning pins 64Bb (that is, positioning protrusions) for positioning the lens holder 64 in the left-right direction (that is, the direction orthogonal to the lamp front-rear direction) with respect to the bracket 40. In addition, a long hole 40Bc extending in the front-rear direction of the lamp is formed in the bracket 40, and screw fastening is performed with the positioning pin 64Bb inserted in the long hole 40Bc. Advantageous effects can be obtained.

  That is, by inserting the positioning pin 64Bb of the lens holder 64 into the elongated hole 40Bc of the bracket 40 and appropriately moving it in the front-rear direction of the lamp, the lens holder 64 is moved in the left-right direction with respect to the bracket 40. After restricting the displacement, the positional relationship in the front-rear direction of the lamp between the projection lens 62 supported by the lens holder 64 and the spatial light modulator 32 supported by the bracket 40 can be finely adjusted. Thus, the spatial light modulator 32 can be arranged with high positional accuracy with respect to the projection lens 62.

  As described above, according to the present embodiment, in the vehicular lamp 10 configured to irradiate the light from the light source 22 toward the front of the lamp via the spatial light modulator 32 and the projection lens 62, the spatial light modulator. 32 can be arranged with high positional accuracy with respect to the projection lens 62.

  At this time, in the present embodiment, the positioning projection for positioning the lens holder 64 in the left-right direction with respect to the bracket 40 is configured by one positioning pin 64Bb, so that the lamp configuration is simplified. can do.

  Further, in the present embodiment, since the screw fastening is performed at two positions on the left and right sides of the projection lens 62, the support to the projection lens 62 can be surely performed. In addition, at that time, the positioning pins 64Bb and the long holes 40Bc are respectively disposed between the front and rear portions of the left and right sides of the projection lens 62, so that it is ensured that the positioning pins 64Bb are inserted into the long holes 40Bc. The positioning function can be enhanced.

  In the first embodiment, the light emitted from the light source 22 reflected by the reflector 26 is reflected by the spatial light modulator 32. However, the light emitted from the light source 22 whose deflection is controlled by a lens or the like is spatial light. It is also possible to adopt a configuration in which light is reflected by the modulator 32 or a structure in which light emitted from the light source 22 is directly reflected by the spatial light modulator 32.

  In the first embodiment, the spatial light modulator 32 has been described as a reflection type spatial light modulator. However, the spatial light modulator 32 may be configured as a transmission type spatial light modulator. is there.

  Next, a modification of the first embodiment will be described.

  First, a first modification of the first embodiment will be described.

  FIG. 5 is a view similar to FIG. 3 showing the main part of the vehicular lamp 110 according to this modification.

  As shown in the figure, the basic configuration of the vehicular lamp 110 is the same as that of the vehicular lamp 10 according to the first embodiment, but the lens holder 164 of the lens-side subassembly 160 and the spatial light modulator sub The positioning structure of the assembly with the bracket 140 is partially different from that of the first embodiment.

  That is, the lens holder 164 of the present modification also includes a pair of flange portions 164B formed so as to protrude from the left and right sides along the horizontal plane at the lower end portion of the outer peripheral surface of the holder main body 164A, and each flange portion 164B. Are fixed to the horizontal surface portion 140B of the bracket 140 with screws at two locations.

  In addition, in this modified example, a pair of front and rear positioning pins 164Bb is formed in each flange portion 164B of the lens holder 164, and the horizontal surface portion 140B of the bracket 140 penetrates the horizontal surface portion 140B in the vertical direction. A single long hole 140Bc is formed.

  The long hole 140Bc is formed so as to extend long in the front-rear direction of the lamp between the pair of front and rear boss portions 140Bb over the substantially entire length thereof, and the lateral width thereof is set to the same value as the long hole 40Bc of the first embodiment. Has been.

  On the other hand, the pair of front and rear positioning pins 164Bb are formed at positions separated from the front end edge and the rear end edge of the long hole 140Bc while being separated from each other in the lamp front-rear direction. Each positioning pin 164Bb has the same configuration as the positioning pin 64Bb of the first embodiment.

  Also in this modified example, when screw fastening is performed at two positions on the left and right sides of the holder main body 164A, a pair of positioning pins 164Bb are inserted into the elongated holes 140Bc of the flange portions 164B. The lens holder 164 is restricted from being displaced in the left-right direction with respect to the bracket 140, and then the projection lens 62 supported by the lens holder 164 and the spatial light modulator (not shown) supported by the bracket 140 are used. The positional relationship in the front-rear direction of the lamp can be finely adjusted.

  In addition, in the present modification, the positioning protrusions for positioning the lens holder 164 with respect to the bracket 140 are configured by a pair of front and rear positioning pins 164Bb formed on each flange portion 164B of the lens holder 164. Therefore, the lens holder 164 can be effectively positioned with respect to the bracket 140 not only in the left-right direction but also in the rotational direction around the vertical axis, and the rigidity as the positioning positioning projection is the same as that of the first embodiment. It can be increased compared to the case.

  Next, a second modification of the first embodiment will be described.

  FIG.5 (b) is a figure similar to FIG. 3 which shows the principal part of the vehicle lamp 210 which concerns on this modification.

  As shown in the figure, the basic configuration of the vehicular lamp 210 is the same as that of the vehicular lamp 10 according to the first embodiment, but the lens holder 264 of the lens-side subassembly 260 and the spatial light modulator sub The positioning structure with the bracket 240 of the assembly is partially different from the case of the first embodiment.

  That is, also in this modified example, the lens holder 264 includes a pair of flange portions 264B formed so as to protrude from the left and right sides along the horizontal plane at the lower end portion of the outer peripheral surface of the holder main body 264A. Screwed and fixed to the horizontal surface portion 240B of the bracket 240 at two locations before and after the pair of flange portions 264B.

  In addition, in this modified example, each flange portion 264B of the lens holder 264 is formed with an upright wall 264Bb extending in the front-rear direction of the lamp, and penetrates the horizontal plane portion 240B in the horizontal plane portion 240B of the bracket 240 in the vertical direction. A single long hole 240Bc is formed.

  The long hole 240Bc is formed so as to extend long in the front-rear direction of the lamp between the pair of front and rear bosses 240Bb over substantially the entire length thereof, and the lateral width thereof is set to the same value as the long hole 40Bc of the first embodiment. Has been.

  On the other hand, the standing wall 264Bb is formed in a state of being separated from the front end edge and the rear end edge in the long hole 240Bc. The standing wall 264Bb has a lateral width that is set to the same value as the diameter of the positioning pin 64Bb of the first embodiment, and a downward projecting amount from the flange portion 264B is the same as that of the positioning pin 64Bb of the first embodiment. Is set to a value.

  Also in this modified example, when the screw fastening is performed at the two front and rear sides on both the left and right sides of the holder main body 264A, the standing wall 264Bb is inserted into the long hole 240Bc of each flange portion 264B, so that the lens holder 264 is The position of the projection lens 62 supported by the lens holder 264 and the spatial light modulator (not shown) supported by the bracket 240 in the front-rear direction of the lamp after restricting the horizontal displacement with respect to the bracket 240. You can fine-tune the relationship.

  Moreover, in this modification, the positioning projections for positioning the lens holder 264 with respect to the bracket 240 are constituted by standing walls 264Bb formed in the flange portions 264B of the lens holder 264 and extending in the front-rear direction of the lamp. Therefore, the lens holder 264 can be effectively positioned with respect to the bracket 240 not only in the left-right direction but also in the rotation direction around the vertical axis, and the rigidity as the positioning positioning projection is the first embodiment. As compared with the case of, it can raise significantly.

  Next, a third modification of the first embodiment will be described.

  Fig.6 (a) is a figure similar to FIG. 3 which shows the principal part of the vehicle lamp 310 which concerns on this modification.

  As shown in the figure, the basic configuration of the vehicular lamp 310 is the same as that of the vehicular lamp 10 according to the first embodiment, but the lens holder 364 of the lens-side subassembly 360 and the spatial light modulator sub The positioning structure with the assembly bracket 340 is partially different from that in the first embodiment.

  That is, the bracket 340 of this modification has a configuration similar to that of the bracket 40 of the first embodiment, and a long hole 340Bc similar to the long hole 40Bc of the first embodiment is formed in the horizontal plane portion 340B. Is formed.

  On the other hand, the lens holder 364 of this modification is configured as a member made of synthetic resin (for example, polycarbonate resin). The shape of the holder main body 364A of the lens holder 364 and the basic shape of the positioning pin 364Bb are the same as those in the first embodiment, but the positioning pin 364Bb is the first embodiment as indicated by a two-dot chain line in the figure. The positioning pin 64Bb is formed to be longer than the positioning pin 64Bb, and the tip thereof is caulked and fixed to the horizontal surface portion 340B of the bracket 340 around the long hole 340Bc by heat caulking.

  At this time, in this modification, the tip of the positioning pin 364Bb is engaged with the lower surface of the horizontal surface portion 340B around the long hole 340Bc by heat caulking.

  By adopting the configuration of this modification, the positional relationship between the projection lens 62 supported by the lens holder 364 and the spatial light modulator (not shown) supported by the bracket 340 can be finely adjusted in the front-rear direction of the lamp. It is possible to easily maintain the completed state.

  In this modification, the positioning pin 364Bb may be fixed after the screw tightening is completed, or may be performed before the completion of the screw tightening. It is preferable to perform caulking with the positional relationship between the lens holder 364 and the bracket 340 being fixed using a jig or the like after the fine adjustment is completed.

  In the third modification, the positioning pin 364Bb of the lens holder 364 made of synthetic resin has been described as being caulked and fixed to the horizontal surface portion 340B of the bracket 340 by heat caulking, but the lens holder 364 is used as a metal member. In addition, the positioning pin 364Bb may be fixed to the horizontal plane portion 340B of the bracket 340 by cold caulking.

  Next, a fourth modification of the first embodiment will be described.

  FIG. 6B is a view similar to FIG. 3 showing the main part of the vehicular lamp 410 according to this modification.

  As shown in the figure, the basic configuration of the vehicular lamp 410 is the same as that of the vehicular lamp 310 according to the third modified example. However, the manner of caulking and fixing the tip of the positioning pin 464Bb is the same as that of the third embodiment. This is partly different from the modified example.

  That is, also in this modified example, the tip of the positioning pin 464Bb is caulked and fixed to the horizontal surface portion 440B of the bracket 440 around the long hole 440Bc by heat caulking, but by increasing the pressing force at the time of heat caulking, The tip of the positioning pin 464Bb engages with the lower surface of the horizontal surface portion 440B in the vicinity of the long hole 440Bc, and caulking is performed with the middle portion of the positioning pin 464Bb filled into the long hole 440Bc by thermal deformation. It has become.

  By adopting the configuration of this modification, the positional relationship between the projection lens 62 supported by the lens holder 464 and the spatial light modulator (not shown) supported by the bracket 440 can be finely adjusted in the longitudinal direction of the lamp. It becomes easier to maintain the completed state.

  Also in this modified example, the positioning pin 464Bb may be fixed with caulking after the screw tightening is completed, or may be performed before the completion of screw tightening. It is preferable to perform caulking and fixing with the positional relationship between the lens holder 464 and the bracket 440 fixed using a jig or the like after fine adjustment of the direction is completed.

  Next, a second embodiment of the present invention will be described.

  FIG. 7 is a view similar to FIG. 3, showing a vehicular lamp 510 according to the second embodiment of the present invention.

  As shown in the figure, the basic configuration of the vehicular lamp 510 is the same as that of the vehicular lamp 10 according to the first embodiment, but the lens holder 564 of the lens-side subassembly 560 and the spatial light modulator sub The positioning structure of the assembly 530 and the bracket 540 is partially different from that of the first embodiment.

  That is, the lens holder 564 of the present embodiment also includes a pair of flange portions 564B formed so as to protrude from the left and right sides along the horizontal plane at the lower end portion of the outer peripheral surface of the holder body 564A, and each flange portion 564B. Are fixed to the horizontal surface portion 540B of the bracket 540 with screws.

  Also in this embodiment, each flange portion 564B of the lens holder 564 is formed with a pair of front and rear screw insertion holes 564Ba penetrating the flange portion 564B in the vertical direction. Further, a pair of front and rear boss portions 540Bb having screw holes are formed on the horizontal surface portion 540B of the bracket 540 so as to protrude downward. The screws 66 are screwed into the screw holes of the boss portions 540Bb through the screw insertion holes 564Ba from above the flange portions 564B.

  At this time, each screw insertion hole 564Ba is formed as a long hole extending in the front-rear direction of the lamp with a left-right width larger than the screw diameter of each screw 66, whereby the lens holder 564 is positioned in the front-rear direction of the lamp with respect to the bracket 540. The screw can be tightened in the adjusted state.

  A positioning pin 540Bd is formed on the upper surface of the horizontal surface portion 540B of the bracket 540 so as to protrude vertically upward at the center position in the front-rear direction of the pair of front and rear boss portions 540Bb. Each positioning pin 540Bd is formed in a columnar shape, and its tip is formed in a convex curved surface shape. Further, the upward protrusion amount of each positioning pin 540Bd from the horizontal plane portion 540B is set to a value slightly larger than the plate thickness of each flange portion 564B of the lens holder 564.

  On the other hand, each flange portion 564B of the lens holder 564 is formed with a long hole 564Bc penetrating the flange portion 564B in the vertical direction at a position corresponding to each positioning pin 540Bd. Each long hole 564Bc is formed as a long hole extending in the front-rear direction of the lamp with a lateral width slightly larger than the diameter of the positioning pin 540Bd.

  When the lens holder 64 is screwed to the bracket 40, the positioning pin 540Bd is inserted into the elongated hole 564Bc in advance to restrict the lens holder 564 from being displaced in the left-right direction with respect to the bracket 540. Above, the positional relationship between the lens holder 564 and the bracket 540 in the lamp front-rear direction can be finely adjusted. As a result, the lens holder 564 is prevented from inadvertently rotating with respect to the bracket 540 due to torque generated during screw tightening, and the positional relationship accuracy between the spatial light modulator 32 and the projection lens 62 is improved. ing.

  Next, the operation of this embodiment will be described.

  Also in the vehicular lamp 510 according to the present embodiment, the lens holder 564 that supports the projection lens 62 is fixed to the bracket 540 that supports the spatial light modulator 32 by screw tightening (that is, mechanical fastening). It is possible to ensure that the projection lens 62 and the spatial light modulator 32 are supported.

  In addition, the bracket 540 is formed with positioning pins 540Bd (that is, positioning protrusions) for positioning the lens holder 564 with respect to the bracket 540 in the left-right direction (that is, the direction orthogonal to the lamp front-rear direction). In addition, the lens holder 564 is formed with a long hole 564Bc extending in the front-rear direction of the lamp. Since the positioning pin 540Bd is inserted into the long hole 564Bc, screw fastening is performed. Such effects can be obtained.

  That is, by inserting the positioning pin 540Bd of the bracket 540 into the elongated hole 564Bc of the lens holder 564 and moving it appropriately in the front-rear direction of the lamp, the lens holder 564 is fixed to the bracket 540 to the left and right. The positional relationship in the front-rear direction of the lamp between the projection lens 62 supported by the lens holder 564 and the spatial light modulator 32 supported by the bracket 540 can be finely adjusted after restricting displacement in the direction. Thus, the spatial light modulator 32 can be arranged with high positional accuracy with respect to the projection lens 62.

  At this time, also in this embodiment, since the positioning projection for positioning the lens holder 564 in the left-right direction with respect to the bracket 540 is configured by one positioning pin 564Bb, the lamp configuration is simplified. can do.

  The configurations of the first to fourth modifications of the first embodiment can be applied to the configuration of the present embodiment. In this case, the first to first variations of the first embodiment are applicable. The same effects as those of the fourth modification can be obtained.

  In addition, the numerical value shown as a specification in the said 1st Embodiment, its modification, and the said 2nd Embodiment is only an example, and of course, you may set these to a different value suitably.

  The invention of the present application is not limited to the configuration described in the first embodiment, the modification thereof, and the second embodiment, and a configuration in which various other changes are added can be employed.

10, 110, 210, 310, 410, 510 Vehicle lamp 20 Light source side sub-assembly 22 Light source 24 Reflector 24a Reflecting surface 26 Base member 30, 530 Spatial light modulator sub-assembly 32 Spatial light modulator 32a Reflected light control region 32b Perimeter Portion 32c Terminal pin 34 Socket 36 Support substrate 36a Opening portion 36b Bolt insertion hole 40, 140, 240, 340, 440, 540 Bracket 40A Vertical surface portion 40Aa, 40Ba Opening portion 40Ab Protrusion portion 40Ac, 40Bb, 140Bb, 240Bb, 540Bb Boss portion 40B, 140B, 240B, 340B, 440B, 540B Horizontal plane portion 40Bb1 Screw hole 40Bc, 140Bc, 240Bc, 340Bc, 440Bc, 564Bc Long hole 50 Heat sink 50a Bolt insertion hole 50 Radiation fin 50c Projection part 52 Stepped bolt 52a Small diameter part 52b Large diameter part 52c Head part 54 Spring 60, 160, 260, 360, 560 Lens side sub-assembly 62 Projection lens 62A First lens 62B Second lens 64, 164, 264 364, 564 Lens holder 64A, 164A, 264A, 364A, 564A Holder body 64Aa Protruding part 64B, 164B, 264B, 564B Flange part 64Ba, 564Ba Screw insertion hole 64Bb, 164Bb, 364Bb, 464Bb, 540Bd Positioning pin (positioning protrusion Part)
66 Screw 264Bb Standing wall (positioning protrusion)
Ax Optical axis F Rear focus

Claims (6)

In a vehicle lamp configured to irradiate light from a light source toward the front of the lamp through a spatial light modulator and a projection lens,
The lens holder that supports the projection lens is fixed to the bracket that supports the spatial light modulator by mechanical fastening,
The lens holder is formed with a positioning projection for positioning the lens holder in a direction orthogonal to the lamp front-rear direction with respect to the bracket.
The bracket is formed with a long hole extending in the front-rear direction of the lamp,
A vehicular lamp characterized by being fixed by the mechanical fastening in a state where the positioning projection is inserted into the long hole. In a vehicle lamp configured to irradiate light from a light source toward the front of the lamp through a spatial light modulator and a projection lens,
The lens holder that supports the projection lens is fixed to the bracket that supports the spatial light modulator by mechanical fastening,
The bracket is formed with a positioning projection for positioning the lens holder in a direction perpendicular to the lamp front-rear direction with respect to the bracket,
In the lens holder, a long hole extending in the lamp front-rear direction is formed,
A vehicular lamp characterized by being fixed by the mechanical fastening in a state in which the positioning projection is inserted into the long hole.   3. The vehicular lamp according to claim 1 or 2, wherein the positioning projection is composed of two positioning pins arranged at intervals in the lamp front-rear direction.   The vehicular lamp according to claim 1, wherein the positioning projection is formed of a standing wall extending in the front-rear direction of the lamp.   The vehicular lamp according to any one of claims 1 to 4, wherein the positioning protrusion is caulked and fixed to the bracket or the lens holder around the elongated hole. Fixing by the mechanical fastening is performed at two places on the front and rear sides of the left and right sides of the projection lens,
The vehicular lamp according to any one of claims 1 to 5, wherein the positioning protrusion and the elongated hole are respectively disposed between the two front and rear portions on each of the left and right sides of the projection lens. .

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