WO2022044731A1 - Vehicle lighting - Google Patents

Vehicle lighting Download PDF

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Publication number
WO2022044731A1
WO2022044731A1 PCT/JP2021/028868 JP2021028868W WO2022044731A1 WO 2022044731 A1 WO2022044731 A1 WO 2022044731A1 JP 2021028868 W JP2021028868 W JP 2021028868W WO 2022044731 A1 WO2022044731 A1 WO 2022044731A1
Authority
WO
WIPO (PCT)
Prior art keywords
irradiation
slit
light
vehicle
slit portion
Prior art date
Application number
PCT/JP2021/028868
Other languages
French (fr)
Japanese (ja)
Inventor
泰宏 大久保
Original Assignee
市光工業株式会社
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
Application filed by 市光工業株式会社 filed Critical 市光工業株式会社
Publication of WO2022044731A1 publication Critical patent/WO2022044731A1/en

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Classifications

    • 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
    • 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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

  • This disclosure relates to vehicle lighting equipment.
  • the lighting equipment for a vehicle forms an irradiation pattern on the road surface around the vehicle (see, for example, Patent Document 1 and the like).
  • this vehicle lamp can inform the viewer of some intention.
  • this vehicle lamp has only a plurality of symbols arranged, it is difficult to increase the types of intentions that can be notified by the irradiation pattern.
  • the present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a vehicle lamp that can increase the types of intentions that can be notified by an irradiation pattern.
  • the vehicle lighting equipment of the present disclosure includes a light source, a light-shielding member provided with an irradiation slit that partially passes light from the light source, and a projection lens that projects light through the light-shielding member to form an irradiation pattern.
  • the irradiation slit includes a far slit portion corresponding to a distant irradiation point projected at a distant position in the irradiation pattern, and a near slit portion corresponding to a near irradiation point projected at a near position in the irradiation pattern.
  • the far slit portion has a portion and a shape
  • the near slit portion has a shape that imitates a symbol
  • the near slit portion has a shape that imitates a character.
  • the vehicle lighting equipment of the present disclosure it is possible to increase the types of intentions that can be notified by the irradiation pattern.
  • Example 1 of the vehicle lamp 10 as an example of the vehicle lamp according to the present disclosure will be described with reference to the drawings.
  • the vehicle light fixture 10 in order to make it easy to grasp the state in which the vehicle light fixture 10 is provided, the vehicle light fixture 10 is emphasized with respect to the vehicle 1, and it does not necessarily match the actual state. It's not a thing.
  • the vehicle lighting fixture 10 of the first embodiment is used as a lighting fixture of a vehicle 1 such as an automobile, and is a road surface around the front of the vehicle 1 separately from the headlights provided in the vehicle 1. It is provided in the front part of the vehicle 1 in order to form the irradiation pattern Pi in 2.
  • the periphery in front of the vehicle 1 always includes a proximity region closer to the vehicle 1 than the headlight region illuminated by the headlights provided in the vehicle 1, and partially includes the headlight region. In some cases.
  • each vehicle lighting tool 10 is provided at the rear of the vehicle 1 so as to form an irradiation pattern Pi on the road surface 2 around the rear of the vehicle 1.
  • each vehicle lighting tool 10 is arranged at a position higher than the road surface 2 at the front and rear ends of the vehicle 1, and is provided in a state where the projected optical axis Lp is inclined with respect to the road surface 2.
  • the two vehicle lamps 10 have basically the same configuration except that the mounting position and the position forming the irradiation pattern Pi are different.
  • the direction in which the projected optical axis Lp, which is the direction of irradiating light, extends is defined as the optical axis direction (Z in the drawing), and the optical axis direction is defined as being along the horizontal plane.
  • the vertical direction is the vertical direction (Y in the drawing), and the direction orthogonal to the optical axis direction and the vertical direction (horizontal direction) is the width direction (X in the drawing) (see FIG. 2 and the like).
  • the vehicle lamp 10 is of a projector type in which a light source unit 11, a condenser lens 12, a filter 13, and a projection lens 14 are housed in a housing 15 to form a single projection optical system. It constitutes a road surface projection unit.
  • the housing 15 is composed of a semi-cylindrical lower member 15a and an upper member 15b, and the installation base portion 16 is provided with the above-mentioned members (12 to 14) installed on the lower member 15a.
  • the lower member 15a and the upper member 15b are fitted so as to be interposed.
  • the housing 15 is provided with a condenser lens groove 15c into which the condenser lens 12 is fitted, a filter groove (not shown) into which the filter 13 is fitted, and a projection lens groove 15d into which the projection lens 14 is fitted (not shown). Only the lower member 15a side is shown).
  • the lower member 15a is provided with a pair of fixing protrusions 15e in the width direction
  • the upper member 15b is provided with a pair of fixing holes 15f in the width direction (both). Only the front side is shown), and each fixing protrusion 15e and each fixing hole 15f can be fitted.
  • the housing 15 is provided with connecting protrusions 15g (only the upper side is shown) in pairs in the vertical direction.
  • the shape of the housing 15 may be appropriately set, and is not limited to the configuration of the first embodiment.
  • the installation base portion 16 is for installing the light source portion 11, is made of aluminum die-cast or resin having thermal conductivity, and has an installation portion 16a and a heat dissipation portion 16b.
  • the installation location 16a is a location where the light source unit 11 (the substrate 23 thereof) is installed, and has a flat plate shape orthogonal to the optical axis direction.
  • the installation location 16a is provided with a connection wall 16c surrounding the light source unit 11.
  • the connection wall 16c is provided with connection holes 16d in pairs in the vertical direction, and each connection protrusion 15g of the housing 15 into which the lower member 15a and the upper member 15b are fitted is provided with the corresponding connection hole 16d. By being inserted, it is connected to the housing 15.
  • the heat radiating portion 16b functions as a heat sink that releases heat generated by the light source unit 11 to the outside.
  • the heat radiating portion 16b has a plurality of radiating fins 16e continuously provided at the installation portion 16a.
  • the heat radiating portion 16b radiates heat generated by the light source unit 11 installed at the installation portion 16a from each heat radiating fin 16e to the outside.
  • the light source unit 11 has a first light source 21, a second light source 22, and a substrate 23 on which they are mounted.
  • the first light source 21 and the second light source 22 are composed of light emitting elements such as LEDs (Light Emitting Diodes).
  • the first light source 21 and the second light source 22 emit white light (white light) with a Lambersian distribution centered on the emission light axis.
  • the first light source 21 and the second light source 22 may be appropriately set in color (wavelength band), distribution mode, number of colors, and the like, and are not limited to the configuration of the first embodiment.
  • the board 23 is attached to the installation location 16a of the installation base 16, and the first light source 21 and the second light source 22 are mounted.
  • the substrate 23 is provided with a lighting control circuit, and electric power is appropriately supplied from the lighting control circuit to light the first light source 21 and the second light source 22.
  • the substrate 23 is attached to the installation location 16a of the installation base portion 16 and the housing 15 is connected to the connection wall 16c so that the rear end portion of the housing 15 (projection lens groove 15d in the optical axis direction) is formed. Is located on the opposite end) side and faces the condenser lens 12 (the incident surface thereof) housed in the housing 15.
  • the condenser lens 12 collects the light emitted from the first light source 21 and the second light source 22, and the periphery of each slit portion 27 described later on the filter 13, that is, the filter. Light is collected in the region where each slit portion 27 is provided while including all the slit portions 27 on the 13.
  • the condenser lens 12 is basically a biconvex lens, and the entrance surface and the exit surface are free curved surfaces.
  • the condenser lens 12 is provided with flange portions 12a at both ends in the width direction. Each flange portion 12a can be fitted into the condenser lens groove 15c of the housing 15. When the flange portion 12a of the condenser lens 12 is fitted into the condenser lens groove 15c, the lens axis coincides with the projected optical axis Lp.
  • the filter 13 is an example of a light-shielding member that forms an irradiation pattern Pi by partially passing light from the first light source 21 and the second light source 22 condensed by the condenser lens 12.
  • the three irradiation points Li are arranged at substantially equal intervals in the direction away from the vehicle 1.
  • the first irradiation point Li1 the one farthest from the vehicle 1
  • the second irradiation point Li2 and the third irradiation point Li3 are in order. And.
  • the first irradiation point Li1 becomes the distant irradiation point
  • the third irradiation point Li3 becomes the near irradiation point
  • the second irradiation point Li2 in between becomes the intermediate irradiation point.
  • the first irradiation point Li1 and the second irradiation point Li2 are designated as V-shaped symbols that are wide open, and the first irradiation point Li1 is slightly larger.
  • the third irradiation point Li3 is a character written as "CAR" in the three alphabets, and is formed in a region having a size substantially equal to the region where the second irradiation spot Li2 is formed.
  • the first irradiation point Li1, the second irradiation point Li2, and the third irradiation point Li3 are elongated in the direction orthogonal to the arrow direction Da described later on the road surface 2 serving as the projection surface. However, they are formed side by side in the direction of the arrow Da.
  • the irradiation pattern Pi can be made to look like an arrow pointing to the arrow direction Da in which two V-shaped vertices are lined up from the vehicle 1.
  • the irradiation pattern Pi uses the third irradiation point Li3 as a character, it is possible to convey an intention different from the arrow.
  • the direction indicated by the arrow as the irradiation pattern Pi that is, the direction in which the V-shaped vertices of both irradiation points (Li1 and Li2) are lined up is the arrow direction Da, and the pointed side (first irradiation point Li1 side) is the arrow direction Da.
  • the first irradiation point Li1 is a straight line in which two side end Lies located in a direction orthogonal to the arrow direction Da are inclined toward the inside (the side approaching the vehicle 1) toward the rear side in the arrow direction Da. Has been done. That is, the both end Lies of the first irradiation point Li1 are inclined inward with respect to the arrow direction Da.
  • the irradiation pattern Pi including the three irradiation points Li is formed by the filter 13.
  • the filter 13 is provided with a filter unit 24 in the filter frame unit 25.
  • the filter frame portion 25 has a circular frame shape surrounding the filter portion 24, can be fitted into the filter groove of the housing 15, and is attached to the housing 15 (see FIG. 1).
  • the filter unit 24 is basically formed of a plate-shaped member that blocks the transmission of light, and is provided with an irradiation slit 26 through which the member is partially cut out and penetrated.
  • the irradiation slit 26 partially passes the light from the first light source 21 and the second light source 22 condensed by the condenser lens 12 to form the irradiation pattern Pi into a predetermined shape.
  • the irradiation slit 26 corresponds to the irradiation pattern Pi, and is composed of three slit portions 27 in the first embodiment.
  • the three slits 27 have a one-to-one correspondence with the three irradiation points Li. Since the projection lens 14 inverts the filter 13 (irradiation slit 26) and projects it onto the road surface 2, each of the slit portions 27 sets the projected optical axis Lp with respect to the positional relationship of each irradiation point Li of the irradiation pattern Pi. It has a positional relationship that is a rotation target as the center (see FIGS. 3 and 4). Therefore, in each slit portion 27, the lowermost first slit portion 271 in the vertical direction becomes a distant slit portion corresponding to the first irradiation point Li1 (distant irradiation point) of the irradiation pattern Pi.
  • each slit portion 27 the second slit portion 272 above the slit portion 27 becomes an intermediate slit portion corresponding to the second irradiation point Li2 (intermediate irradiation point). Then, in each slit portion 27, the uppermost third slit portion 273 becomes a near slit portion corresponding to the third irradiation point Li3 (near irradiation point). The position of each slit portion 27 is set on the filter portion 24 so that each irradiation point Li has a targeted positional relationship on the road surface 2.
  • the third slit portion 273 is provided above the projected optical axis Lp in the vertical direction, and the second slit portion 272 is provided below the filter 13 across the horizontal line including the projected optical axis Lp.
  • a first slit portion 271 is provided below the first slit portion 271. The light transmitted through the filter 13 (each slit portion 27 of the irradiation slit 26) is projected onto the road surface 2 by the projection lens 14.
  • the first slit portion 271 and the second slit portion 272 are shaped to imitate a V-shaped symbol that opens wide like the first irradiation point Li1 and the second irradiation point Li2, respectively, respectively.
  • the top, bottom, left, and right are reversed with respect to the irradiation point Li1 and the second irradiation point Li2.
  • the third slit portion 273 has a shape that imitates the characters of the three alphabets "CAR" like the corresponding third irradiation point Li3, and is inverted up, down, left and right.
  • each slit portion 27 (each irradiation point Li that is the light transmitted through the slit portion 27) has a size and an interval corresponding to the distance.
  • each slit portion 27 is set according to the distance to the road surface 2 so that the irradiation points Li are substantially equally spaced on the road surface 2 with the above-mentioned size.
  • the first slit portion 271 has a shape that imitates a thin V-shaped symbol
  • the second slit portion 272 has a shape that imitates a V-shaped symbol that is thicker than the first slit portion 271. It is said that they are elongated in the width direction from the corresponding irradiation points Li.
  • the third slit portion 273 has a shape that imitates the character string of "CAR" that is inflated and curved toward the side away from the projected optical axis Lp.
  • the three slit portions 27 are different in size from each other and have different intervals, unlike each irradiation point Li.
  • the reduction ratio with respect to the corresponding irradiation point Li is the smallest in the first slit portion 271, and when the passing light is projected onto the road surface 2, it is enlarged at the largest enlargement ratio. 1 Irradiation site Li1 is formed.
  • the reduction ratio with respect to the corresponding irradiation point Li is the largest in the third slit portion 273, and when the passing light is projected onto the road surface 2, it is enlarged at the smallest enlargement ratio.
  • the third irradiation point Li3 is formed.
  • the projection lens 14 includes a lens main body portion 28 which is a convex lens having a circular shape when viewed in the optical axis direction, and a flange portion 29 surrounding the lens main body portion 28.
  • the lens body 28 has a free curved surface whose incident surface and exit surface are convex surfaces.
  • the lens body portion 28 projects the irradiation pattern Pi on the road surface 2 inclined with respect to the projected optical axis Lp, as shown in FIG. 1 and the like.
  • the incident surface and the exit surface may be convex or concave as long as the lens body 28 is a convex lens, and are not limited to the configuration of the first embodiment.
  • the flange portion 29 protrudes from the lens main body portion 28 in the radial direction centered on the lens axis, and extends over the entire circumference in the circumferential direction centered on the lens axis.
  • the flange portion 29 can be fitted into the projection lens groove 15d of the housing 15.
  • the lens axis coincides with the projection optical axis Lp.
  • the formation of the third slit portion 273 will be described with reference to FIGS. 4 and 5. Since the third slit portion 273 has a shape that imitates the characters of the three alphabets "CAR" as described above, it has a complicated shape as compared with the first slit portion 271 and the second slit portion 272. Has been done. Therefore, the third slit portion 273 is required to have higher forming accuracy than the first slit portion 271 and the second slit portion 272. As a result, the third slit portion 273 is supposed to more accurately imitate the characters "CAR".
  • each corner of each character is sharpened as shown in FIG. 5 (a), which is a partially enlarged circle of the alternate long and short dash line in FIG.
  • the filter portion 24 of the filter 13 of the first embodiment is provided with each slit portion 27 by an etching method.
  • this etching method when the filter portion 24 is masked by imitating the shape of each slit portion 27 as it is, the corner portions of each slit portion 27 after the etching process is performed on the filter portion 24 are shown in FIG. 5A. It curls up as shown by the alternate long and short dash line. Therefore, in the filter unit 24, correction for avoiding roundness of the edge (hereinafter, also referred to as edge roundness avoidance correction) is applied to each corner portion of the third slit portion 273.
  • edge roundness avoidance correction correction for avoiding roundness of the edge
  • convex portions 31 are formed at all corners of each character of the third slit portion 273.
  • the convex portion 31 is centered on the bisector 32 of the corresponding corner portion (inner angle thereof), and is projected in the direction in which the bisector 32 extends, and the protruding end 31a is the corresponding corner portion. It protrudes (outside) from the apex.
  • the filter portion 24 has convex portions 31 formed at each corner portion in masking, so that the corner portions of each slit portion 27 after the etching process are sharpened as shown by a solid line in FIG. 5A. be able to. In this way, the edge roundness avoidance correction is performed by performing the etching process after forming the convex portions 31 at each corner portion in the masking.
  • this edge rounding avoidance correction has a lower limit of the size that can form the convex portion 31 that can obtain the above-mentioned sharpening effect, there is also a lower limit of the width dimension of the target slit accordingly.
  • the lower limit of the width dimension of this slit is 0.2 mm.
  • the area occupied by the third slit portion 273 on the filter portion 24 is the largest in each slit portion 27 of the filter portion 24, and can be made larger than the lower limit of the width dimension.
  • it is possible to perform edge rounding avoidance correction by making the third slit portion 273 corresponding to the third irradiation portion Li3, which is a character, the largest.
  • the vehicle lamp 10 is assembled as follows with reference to FIG. First, the first light source 21 and the second light source 22 are mounted on the substrate 23, the light source unit 11 is assembled, and the light source unit 11 is fixed to the installation location 16a to form the installation base unit 16.
  • the condenser lens 12 is fitted into the condenser lens groove 15c
  • the filter 13 is fitted into the filter groove
  • the projection lens 14 is fitted into the projection lens groove 15d.
  • the upper member 15b is fitted to the lower member 15a to form the housing 15, and each connection protrusion 15g of the housing 15 is inserted into the corresponding connection hole 16d to form the housing 15 via the connection wall 16c.
  • the body 15 is connected to the installation base 16.
  • the condenser lens 12, the filter 13, and the projection lens 14 are housed in the housing 15, and the light source unit 11 is connected to the housing 15.
  • the light collecting lens 12, the filter 13, and the projection lens 14 are arranged on the projected optical axis Lp in a predetermined positional relationship from the side of the light source unit 11, and the vehicle lamp 10 is assembled.
  • the vehicle lighting fixture 10 is provided in a state where the projected optical axis Lp is directed toward the front side of the vehicle 1 and is inclined with respect to the road surface 2 around the vehicle 1, and the projected optical axis Lp is located on the rear side of the vehicle 1. It is provided in a state of being inclined with respect to the road surface 2 around the vehicle 1 while being directed.
  • Each vehicle lighting tool 10 can appropriately turn on and off the electric power from the lighting control circuit by supplying electric power from the substrate 23 to both light sources (21 and 22). The light from both light sources (21, 22) is collected by the condenser lens 12 and irradiates the filter 13.
  • the second slit portion 272 is darker than the first slit portion 271, and the third slit portion 273 is darker than the second slit portion 272, and each slit portion 27 is bright in the width direction. Is considered to be substantially uniform.
  • the light from both the light sources (21 and 22) is projected by the projection lens 14 after passing through each of the slit portions 27, so that the light is formed as an irradiation pattern Pi on the road surface 2.
  • the irradiation pattern Pi is formed by arranging three irradiation points Li on a substantially straight line, and each irradiation point Li has substantially equal brightness to each other.
  • both light sources (21 and 22) are monochromatic light
  • the influence of chromatic aberration on the projection lens 14 can be significantly suppressed, and the irradiation pattern Pi, that is, each irradiation point Li. (Each shape) can be clarified.
  • the vehicle lighting fixture 10 can inform those who are in front of and behind the vehicle 1 that the vehicle 1 may be in the driving state and start moving.
  • the vehicle lighting tool 10 for example, when the gear of the vehicle 1 is on the forward side, the irradiation pattern is on the front side, and when the gear of the vehicle 1 is on the backward side, the irradiation pattern is on the rear side. Pi is formed on the road surface 2. As a result, each vehicle lighting tool 10 can notify a person existing on the front side or the rear side of the vehicle 1 that the vehicle 1 is moving or is about to move back and forth.
  • each vehicle lamp 10 uses the third irradiation point Li3 of the irradiation pattern Pi to be formed as a character, the types of intentions to be conveyed to the occupants and those around them can be greatly increased.
  • the third irradiation point Li3 of the first embodiment is set to "CAR", and it is possible to inform the surrounding people who are in a position where the vehicle 1 cannot be directly seen that the vehicle 1 exists.
  • the third irradiation point Li3 of the first embodiment is referred to as "CAR”.
  • CAR the third irradiation point Li3 of the first embodiment
  • the third irradiation point Li3 can be used as a greeting word such as "HELLO" to soften the occupants and those around them.
  • the characters of the third irradiation point Li3 may be appropriately set, and are not limited to the configuration of the first embodiment or the above-mentioned example.
  • each vehicle lamp 10 can instantly convey the intention to the viewer by using the first irradiation point Li1 and the second irradiation point Li2 as symbols, and separately, the third irradiation point Li3 is used.
  • Other intentions can be conveyed by using letters.
  • the vehicle lamp 10 can intuitively convey the intention by the symbol, and can also convey various intentions different from the symbol by the character.
  • the vehicle lighting tool 10 uses the first irradiation point Li1 at the position farthest from the vehicle 1 as a symbol, some intention can be smoothly transmitted to those around the vehicle 1.
  • the vehicle lighting tool 10 has the third irradiation point Li3 at the position closest to the vehicle 1 as a character, even if it is aimed at the occupant, the intention can be smoothly conveyed to the occupant. , It is possible to suppress a sense of discomfort to those around the vehicle 1.
  • the vehicle lamp 10 has a size of the first irradiation point Li1 larger than that of the second irradiation point Li2. Therefore, in the vehicle lamp 10, the first irradiation point Li1 can give the impression that the first irradiation point Li1 corresponds to the arrow head in the arrow symbol and the second irradiation point Li2 corresponds to the shaft in the arrow symbol, and only two symbols can be given. However, it can give the impression of pointing to the arrow direction Da. In particular, in the vehicle lamp 10, the both end Lies of the first irradiation point Li1 are inclined inward with respect to the arrow direction Da.
  • the first irradiation point Li1 can give a stronger impression corresponding to the arrow head in the symbol of the arrow, and can give a stronger impression pointing to the arrow direction Da.
  • the vehicle lighting tool 10 can instantly make people around the vehicle 1 know that the irradiation pattern Pi points to the arrow direction Da.
  • the vehicle lamp 10 of the first embodiment can obtain each of the following effects.
  • the irradiation slit 26 corresponds to the far slit portion (first slit portion 271) corresponding to the distant irradiation portion (first irradiation portion Li1) and the near irradiation portion (third irradiation portion Li3). It has a near slit portion (third slit portion 273).
  • the far slit portion has a shape that imitates a symbol
  • the near slit portion has a shape that imitates a character. Therefore, the vehicle lamp 10 can intuitively convey the intention by the symbol, and can also convey various intentions different from the symbol by the character, and can be notified by the irradiation pattern Pi. Can be increased.
  • the vehicle lamp 10 has a character string in which the near slit portion (third slit portion 273) imitates a plurality of characters. Therefore, the vehicle lamp 10 can greatly increase the types of intentions that can be notified by the near irradiation point (third irradiation point Li3) formed by the near slit portion.
  • the irradiation slit 26 is formed by an etching method, and edge rounding avoidance correction is applied to each corner of the near slit portion (third slit portion 273). Therefore, even if the near-slit portion has a complicated shape that imitates a character, the vehicle lamp 10 can sharpen each corner portion and allow light to pass to the vicinity of the apex of each corner portion. .. As a result, the vehicle lamp 10 can enhance the reproducibility of the shape of the near slit portion on the projected road surface 2, and can clarify the characters of the near irradiation portion (third irradiation portion Li3).
  • the vehicle lamp 10 includes a condenser lens 12 that collects the light emitted from the light sources (21, 22) around the irradiation slit 26 in the light-shielding member (filter 13). Therefore, the vehicle lamp 10 can collect the light emitted from the light sources (21, 22) in the region provided with the irradiation slit 26 in the light-shielding member. As a result, the vehicle lamp 10 clearly uses the light from the light source (21, 22) to clearly identify the distant irradiation point (first irradiation point Li1) and the near irradiation point (third irradiation point Li3). Can be formed.
  • the vehicle lamp 10 has an intermediate slit portion (second slit portion 272) in which the irradiation slit 26 corresponds to the intermediate irradiation portion (second irradiation portion Li2). Therefore, the vehicle lamp 10 can more appropriately convey the intention in cooperation with the symbol of the distant irradiation point by using the intermediate irradiation point as the symbol as in the first embodiment. Further, the vehicle lamp 10 can convey more intentions in cooperation with the characters of the near irradiation portion by using the characters of the intermediate irradiation portion.
  • the vehicle lamp 10 has the largest (occupied area) of the near slit portion (third slit portion 273) in the irradiation slit 26. Therefore, the vehicle lamp 10 can appropriately form a near-slit portion having a complicated shape by imitating a character, and a near-irradiation portion (third irradiation portion) by light passing through the near-slit portion.
  • the characters of Li3) can be clarified. Further, in the vehicle lamp 10, by making the near slit portion (third slit portion 273) the largest, it becomes easy to correct the edge roundness avoidance at each corner portion, and due to the effect, the shape on the road surface 2 is formed. Reproducibility can be improved.
  • the vehicle lamp 10 of the first embodiment as the vehicle lamp according to the present disclosure can increase the types of intentions that can be notified by the irradiation pattern Pi.
  • vehicle lamps of the present disclosure have been described above based on the first embodiment, the specific configuration is not limited to the first embodiment and deviates from the gist of the invention according to each claim within the scope of the claims. Unless otherwise, design changes or additions are allowed.
  • the three irradiation points Li are arranged at substantially equal intervals in the direction away from the vehicle 1 to form the irradiation pattern Pi.
  • the distant irradiation point (first irradiation point Li1) by the distant slit portion (first slit portion 271) is a symbol
  • the near irradiation point (first irradiation point 273) by the near slit portion (third slit portion 273) is a character
  • the symbol design, the type of character, the position to be formed, the number of irradiation points Li, and the like may be appropriately set, and the configuration is not limited to that of the first embodiment.
  • the vehicle lighting fixture 10 is provided in the front portion and the rear portion of the vehicle 1 in the first embodiment, if the vehicle lighting tool 10 is provided in the vehicle 1 according to the position where the irradiation pattern is formed with respect to the vehicle 1, the door mirror can be used. It may be accommodated, arranged in a headlight room, a taillight room (light rooms on both the left and right sides of the rear part of the vehicle), or provided on a vehicle body, and is not limited to the configuration of the first embodiment.
  • the first light source 21 and the second light source 22 emit white light.
  • the color of the light emitted from the light source may be appropriately set according to the location to be provided and the content to be transmitted, and is not limited to the configuration of the first embodiment.
  • a filter 13 for passing the light collected by the condenser lens 12 through the irradiation slit 26 is used as the light shielding member.
  • the light-shielding member may have another configuration as long as it is provided with an irradiation slit 26 that partially passes the light condensed by the condenser lens 12, and is not limited to the configuration of each embodiment.
  • a plate-shaped film member that blocks light transmission is provided with an irradiation slit that partially transmits light, and a light-shielding plate that transmits light that has passed through the condenser lens 12 through the irradiation slit. Can be done.
  • the vehicle lighting tool 10 is provided in the vehicle 1 driven by the driver.
  • the vehicle lighting equipment may be provided in a vehicle having an automatic driving function, and is not limited to the configuration of the first embodiment.
  • the lighting fixture for a vehicle may form an irradiation pattern at a timing according to the intended use, that is, at a timing according to some intention regarding the operation of the vehicle 1, and is not limited to the configuration of the first embodiment.
  • the light source portion 11 is provided on the installation base portion 16 having a function as a heat sink (heat dissipation portion 16b), and the installation base portion 16 is connected to the housing 15.
  • the light source for a vehicle is to collect the light from the light source on a light-shielding member with a light-shielding lens and project it with a projection lens to form an irradiation pattern
  • the light source unit is located at the end of the housing. It may be provided or may be another configuration, and is not limited to the configuration of the first embodiment.
  • an intermediate slit portion (second slit portion 272) is provided in the irradiation slit 26 of the light-shielding member (filter 13) to form an intermediate irradiation portion (second irradiation portion Li2) as a symbol.
  • the far slit portion (first slit portion 271) forms the far irradiation point (first irradiation point Li1) of the symbol
  • the near slit portion (third slit portion 273) forms the character near.
  • the intermediate irradiation point may not be provided, or a plurality of intermediate irradiation points (intermediate slit portion) may be provided. Not limited to. Further, the intermediate irradiation portion (intermediate slit portion) may be a character and is not limited to the configuration of the first embodiment.
  • the near irradiation portion (third irradiation portion Li3) formed by the near slit portion (third slit portion 273) has three characters of "CAR".
  • the near irradiation portion (near slit portion) is a character
  • the number of characters (including one character) and the content may be appropriately set, and the configuration is not limited to that of the first embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Provided is a vehicle lighting that allows more varieties of intent that can be indicated by an irradiation pattern.　The vehicle lighting 10 comprises light sources (21, 22), a light-shielding member (13) provided with an irradiation slit 26 via which light from the light sources partially passes, and a projection lens 14 that projects light that has passed through the light-shielding member to form an irradiation pattern Pi. The irradiation slit 26 has a far slit part (first slit part 271) corresponding to a far irradiation location (first irradiation location Li1) projected at a far position in the irradiation pattern Pi, and a near slit part (third slit part 273) corresponding to a near irradiation location (third irradiation location Li3) projected at a close position in the irradiation pattern Pi. The far slit part (first slit part 271) is shaped to resembles a symbol, and the near slit part (third slit part 273) is shaped to resemble a character.

Description

車両用灯具Vehicle lighting
　本開示は、車両用灯具に関する。 This disclosure relates to vehicle lighting equipment.
　車両用灯具は、車両の周辺の路面に照射パターンを形成することが考えられている（例えば、特許文献１等参照）。この車両用灯具は、矢印等の記号を光軸方向に複数並べて照射パターンを形成することで、見た者に何らかの意図を知らせることができる。 It is considered that the lighting equipment for a vehicle forms an irradiation pattern on the road surface around the vehicle (see, for example, Patent Document 1 and the like). By arranging a plurality of symbols such as arrows in the optical axis direction to form an irradiation pattern, this vehicle lamp can inform the viewer of some intention.
ＷＯ２０１９／０１６９４３号公報WO2019 / 016943
　ところが、この車両用灯具は、複数の記号を並べているのみなので、照射パターンで知らせることのできる意図の種類を増やすことが困難である。 However, since this vehicle lamp has only a plurality of symbols arranged, it is difficult to increase the types of intentions that can be notified by the irradiation pattern.
　本開示は、上記の事情に鑑みて為されたもので、照射パターンで知らせることのできる意図の種類を増やすことのできる車両用灯具を提供することを目的とする。 The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a vehicle lamp that can increase the types of intentions that can be notified by an irradiation pattern.
　本開示の車両用灯具は、光源と、前記光源からの光を部分的に通す照射スリットが設けられた遮光部材と、前記遮光部材を通した光を投影して照射パターンを形成する投影レンズと、を備え、前記照射スリットは、前記照射パターンにおいて遠い位置に投影される遠方照射箇所に対応する遠方スリット部と、前記照射パターンにおいて近い位置に投影される近方照射箇所に対応する近方スリット部と、を有し、前記遠方スリット部は、記号を模る形状とされ、前記近方スリット部は、文字を模る形状とされていることを特徴とする。 The vehicle lighting equipment of the present disclosure includes a light source, a light-shielding member provided with an irradiation slit that partially passes light from the light source, and a projection lens that projects light through the light-shielding member to form an irradiation pattern. The irradiation slit includes a far slit portion corresponding to a distant irradiation point projected at a distant position in the irradiation pattern, and a near slit portion corresponding to a near irradiation point projected at a near position in the irradiation pattern. The far slit portion has a portion and a shape, and the near slit portion has a shape that imitates a symbol, and the near slit portion has a shape that imitates a character.
　本開示の車両用灯具によれば、照射パターンで知らせることのできる意図の種類を増やすことができる。 According to the vehicle lighting equipment of the present disclosure, it is possible to increase the types of intentions that can be notified by the irradiation pattern.
本開示に係る実施例１の車両用灯具が車両の前後に搭載されてそれぞれ照射パターンを形成した様子を示す説明図である。It is explanatory drawing which shows the state that the vehicle lighting equipment of Example 1 which concerns on this disclosure is mounted on the front and back of a vehicle, and formed the irradiation pattern respectively. 車両用灯具の構成を示す説明図である。It is explanatory drawing which shows the structure of the lamp for a vehicle. 路面上に投影した照射パターンを示す説明図である。It is explanatory drawing which shows the irradiation pattern projected on the road surface. フィルタを示す説明図である。It is explanatory drawing which shows the filter. 近方スリット部の角部にエッジ丸み回避補正を施す様子を示す説明図であり、（ａ）に図４に一点鎖線で示す円の位置を部分的に拡大して示し、（ｂ）に（ａ）に示す角部を形成するためにエッジ丸み回避補正のためのマスキングを施した様子を示す。It is explanatory drawing which shows the state which the edge roundness avoidance correction is applied to the corner part of the near slit part, and (a) shows the position of the circle shown by the alternate long and short dash line in FIG. 4, and (b) shows (b). It shows how masking for edge rounding avoidance correction was applied to form the corner part shown in a).
　以下に、本開示に係る車両用灯具の一例としての車両用灯具１０の実施例１について図面を参照しつつ説明する。なお、図１では、車両用灯具１０が設けられている様子の把握を容易とするために、車両１に対して車両用灯具１０を強調して示しており、必ずしも実際の様子とは一致するものではない。 Hereinafter, Example 1 of the vehicle lamp 10 as an example of the vehicle lamp according to the present disclosure will be described with reference to the drawings. In addition, in FIG. 1, in order to make it easy to grasp the state in which the vehicle light fixture 10 is provided, the vehicle light fixture 10 is emphasized with respect to the vehicle 1, and it does not necessarily match the actual state. It's not a thing.
　本開示に係る車両用灯具の一実施形態に係る実施例１の車両用灯具１０を、図１から図５を用いて説明する。実施例１の車両用灯具１０は、図１に示すように、自動車等の車両１の灯具として用いられるもので、車両１に設けられる前照灯とは別に、車両１の前方の周辺の路面２に照射パターンＰｉを形成すべく車両１の前部に設けられる。その車両１の前方の周辺とは、車両１に設けられる前照灯により照射される前照灯領域よりも車両１に近い近接領域を必ず含むものであり、部分的に前照灯領域を含む場合もある。また、車両用灯具１０は、車両１の後方の周辺の路面２にも照射パターンＰｉを形成すべく、車両１の後部に設けられる。各車両用灯具１０は、実施例１では、車両１の前後端における路面２よりも高い位置に配置されており、投影光軸Ｌｐが路面２に対して傾斜した状態で設けられる。２つの車両用灯具１０は、取り付けられる位置および照射パターンＰｉを形成する位置が異なることを除くと、基本的に等しい構成とされている。以下の説明では、各車両用灯具１０において、光を照射する方向となる投影光軸Ｌｐが伸びる方向を光軸方向（図面ではＺとする）とし、光軸方向を水平面に沿う状態とした際の鉛直方向を上下方向（図面ではＹとする）とし、光軸方向および上下方向に直交する方向（水平方向）を幅方向（図面ではＸとする）とする（図２等参照）。 The vehicle lamp 10 of the first embodiment according to the embodiment of the vehicle lamp according to the present disclosure will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the vehicle lighting fixture 10 of the first embodiment is used as a lighting fixture of a vehicle 1 such as an automobile, and is a road surface around the front of the vehicle 1 separately from the headlights provided in the vehicle 1. It is provided in the front part of the vehicle 1 in order to form the irradiation pattern Pi in 2. The periphery in front of the vehicle 1 always includes a proximity region closer to the vehicle 1 than the headlight region illuminated by the headlights provided in the vehicle 1, and partially includes the headlight region. In some cases. Further, the vehicle lighting tool 10 is provided at the rear of the vehicle 1 so as to form an irradiation pattern Pi on the road surface 2 around the rear of the vehicle 1. In the first embodiment, each vehicle lighting tool 10 is arranged at a position higher than the road surface 2 at the front and rear ends of the vehicle 1, and is provided in a state where the projected optical axis Lp is inclined with respect to the road surface 2. The two vehicle lamps 10 have basically the same configuration except that the mounting position and the position forming the irradiation pattern Pi are different. In the following description, in each vehicle lighting tool 10, the direction in which the projected optical axis Lp, which is the direction of irradiating light, extends is defined as the optical axis direction (Z in the drawing), and the optical axis direction is defined as being along the horizontal plane. The vertical direction is the vertical direction (Y in the drawing), and the direction orthogonal to the optical axis direction and the vertical direction (horizontal direction) is the width direction (X in the drawing) (see FIG. 2 and the like).
　車両用灯具１０は、図２に示すように、光源部１１と集光レンズ１２とフィルタ１３と投影レンズ１４とが筐体１５に収容され、単一の投射光学系とされて、プロジェクタタイプの路面投影ユニットを構成する。筐体１５は、半円筒形の下側部材１５ａと上側部材１５ｂとで構成されており、下側部材１５ａに上記の各部材（１２から１４）が設置された状態で、設置台部１６を介在させて下側部材１５ａと上側部材１５ｂとが嵌め合わされる。筐体１５では、集光レンズ１２を嵌め入れる集光レンズ溝１５ｃと、フィルタ１３を嵌め入れるフィルタ溝（図示せず）と、投影レンズ１４を嵌め入れる投影レンズ溝１５ｄとが設けられている（それぞれ下側部材１５ａ側のみ図示）。 As shown in FIG. 2, the vehicle lamp 10 is of a projector type in which a light source unit 11, a condenser lens 12, a filter 13, and a projection lens 14 are housed in a housing 15 to form a single projection optical system. It constitutes a road surface projection unit. The housing 15 is composed of a semi-cylindrical lower member 15a and an upper member 15b, and the installation base portion 16 is provided with the above-mentioned members (12 to 14) installed on the lower member 15a. The lower member 15a and the upper member 15b are fitted so as to be interposed. The housing 15 is provided with a condenser lens groove 15c into which the condenser lens 12 is fitted, a filter groove (not shown) into which the filter 13 is fitted, and a projection lens groove 15d into which the projection lens 14 is fitted (not shown). Only the lower member 15a side is shown).
　また、筐体１５では、下側部材１５ａに幅方向で対を為して固定突起１５ｅが設けられるとともに、上側部材１５ｂに幅方向で対を為して固定孔１５ｆが設けられており（共に手前側のみ図示）、各固定突起１５ｅと各固定孔１５ｆとが嵌め合わせることが可能とされている。さらに、筐体１５では、上下方向で対を為して接続突起１５ｇ（上側のみ図示）が設けられている。なお、筐体１５の形状は、適宜設定すればよく、実施例１の構成に限定されない。 Further, in the housing 15, the lower member 15a is provided with a pair of fixing protrusions 15e in the width direction, and the upper member 15b is provided with a pair of fixing holes 15f in the width direction (both). Only the front side is shown), and each fixing protrusion 15e and each fixing hole 15f can be fitted. Further, the housing 15 is provided with connecting protrusions 15g (only the upper side is shown) in pairs in the vertical direction. The shape of the housing 15 may be appropriately set, and is not limited to the configuration of the first embodiment.
　設置台部１６は、光源部１１を設置するもので、熱伝導性を有するアルミダイカストや樹脂で形成され、設置箇所１６ａと放熱箇所１６ｂとを有する。設置箇所１６ａは、光源部１１（その基板２３）が設置される箇所であり、光軸方向に直交する平板状とされている。設置箇所１６ａには、光源部１１を囲む接続壁１６ｃが設けられている。接続壁１６ｃは、上下方向で対を為して接続孔１６ｄが設けられており、下側部材１５ａと上側部材１５ｂとが嵌め合わされた筐体１５の各接続突起１５ｇが対応する接続孔１６ｄに挿入されることで、筐体１５に接続される。放熱箇所１６ｂは、光源部１１で発生する熱を外部に逃がすヒートシンクとして機能する。この放熱箇所１６ｂは、設置箇所１６ａに連続して設けられた複数の放熱フィン１６ｅを有する。放熱箇所１６ｂは、設置箇所１６ａに設置された光源部１１で発生した熱を各放熱フィン１６ｅから外部に放熱する。 The installation base portion 16 is for installing the light source portion 11, is made of aluminum die-cast or resin having thermal conductivity, and has an installation portion 16a and a heat dissipation portion 16b. The installation location 16a is a location where the light source unit 11 (the substrate 23 thereof) is installed, and has a flat plate shape orthogonal to the optical axis direction. The installation location 16a is provided with a connection wall 16c surrounding the light source unit 11. The connection wall 16c is provided with connection holes 16d in pairs in the vertical direction, and each connection protrusion 15g of the housing 15 into which the lower member 15a and the upper member 15b are fitted is provided with the corresponding connection hole 16d. By being inserted, it is connected to the housing 15. The heat radiating portion 16b functions as a heat sink that releases heat generated by the light source unit 11 to the outside. The heat radiating portion 16b has a plurality of radiating fins 16e continuously provided at the installation portion 16a. The heat radiating portion 16b radiates heat generated by the light source unit 11 installed at the installation portion 16a from each heat radiating fin 16e to the outside.
　光源部１１は、第１光源２１と、第２光源２２と、それらが実装される基板２３と、を有する。第１光源２１と第２光源２２とは、ＬＥＤ（Light Emitting Diode）等の発光素子で構成されている。第１光源２１と第２光源２２とは、実施例１では、出射光軸を中心とするランバーシアン分布で白色の光（白色光）を出射する。なお、第１光源２１と第２光源２２とは、色（波長帯域）や、分布の態様や、色の数等は適宜設定すればよく、実施例１の構成に限定されない。 The light source unit 11 has a first light source 21, a second light source 22, and a substrate 23 on which they are mounted. The first light source 21 and the second light source 22 are composed of light emitting elements such as LEDs (Light Emitting Diodes). In the first embodiment, the first light source 21 and the second light source 22 emit white light (white light) with a Lambersian distribution centered on the emission light axis. The first light source 21 and the second light source 22 may be appropriately set in color (wavelength band), distribution mode, number of colors, and the like, and are not limited to the configuration of the first embodiment.
　基板２３は、設置台部１６の設置箇所１６ａに取り付けられ、第１光源２１と第２光源２２とが実装される。基板２３は、点灯制御回路が設けられており、そこから電力を適宜供給して第１光源２１と第２光源２２とを点灯させる。基板２３は、設置台部１６の設置箇所１６ａに取り付けられた状態で、接続壁１６ｃに筐体１５が接続されることで、筐体１５の後端部（光軸方向で投影レンズ溝１５ｄとは反対側の端部）側に位置されて、その筐体１５に収容された集光レンズ１２（その入射面）と対向される。 The board 23 is attached to the installation location 16a of the installation base 16, and the first light source 21 and the second light source 22 are mounted. The substrate 23 is provided with a lighting control circuit, and electric power is appropriately supplied from the lighting control circuit to light the first light source 21 and the second light source 22. The substrate 23 is attached to the installation location 16a of the installation base portion 16 and the housing 15 is connected to the connection wall 16c so that the rear end portion of the housing 15 (projection lens groove 15d in the optical axis direction) is formed. Is located on the opposite end) side and faces the condenser lens 12 (the incident surface thereof) housed in the housing 15.
　集光レンズ１２は、図２に示すように、第１光源２１、第２光源２２から出射された光を集光するものであり、フィルタ１３上における後述する各スリット部２７の周辺、すなわちフィルタ１３上において全てのスリット部２７を含みつつ各スリット部２７が設けられた領域に光を集める。集光レンズ１２は、実施例１では基本的に両凸レンズとされており、入射面および出射面が自由曲面とされている。集光レンズ１２では、幅方向の両端にフランジ部１２ａが設けられている。各フランジ部１２ａは、筐体１５の集光レンズ溝１５ｃに嵌め入れることが可能とされている。集光レンズ１２は、フランジ部１２ａが集光レンズ溝１５ｃに嵌め入れられるとレンズ軸が投影光軸Ｌｐと一致される。 As shown in FIG. 2, the condenser lens 12 collects the light emitted from the first light source 21 and the second light source 22, and the periphery of each slit portion 27 described later on the filter 13, that is, the filter. Light is collected in the region where each slit portion 27 is provided while including all the slit portions 27 on the 13. In the first embodiment, the condenser lens 12 is basically a biconvex lens, and the entrance surface and the exit surface are free curved surfaces. The condenser lens 12 is provided with flange portions 12a at both ends in the width direction. Each flange portion 12a can be fitted into the condenser lens groove 15c of the housing 15. When the flange portion 12a of the condenser lens 12 is fitted into the condenser lens groove 15c, the lens axis coincides with the projected optical axis Lp.
　フィルタ１３は、集光レンズ１２で集光された第１光源２１や第２光源２２からの光を部分的に通すことで照射パターンＰｉを形成する遮光部材の一例である。その照射パターンＰｉは、図１、図３に示すように、３つの照射箇所Ｌｉが車両１から遠ざかる方向に略等しい間隔で整列されている。ここで、各照射箇所Ｌｉは、個別に示す際には、車両１から最も遠いものを第１照射箇所Ｌｉ１とし、そこから車両１に近づくにつれて順に、第２照射箇所Ｌｉ２、第３照射箇所Ｌｉ３とする。このため、照射パターンＰｉでは、第１照射箇所Ｌｉ１が遠方照射箇所となり、第３照射箇所Ｌｉ３が近方照射箇所となり、その間の第２照射箇所Ｌｉ２が中間照射箇所となる。実施例１では、第１照射箇所Ｌｉ１および第２照射箇所Ｌｉ２が、大きく開くＶ字形状の記号とされており、第１照射箇所Ｌｉ１の方が僅かに大きくされている。また、第３照射箇所Ｌｉ３は、３つのアルファベットで「ＣＡＲ」と書かれた文字とされており、第２照射箇所Ｌｉ２が形成された領域と略等しい大きさの領域に形成されている。 The filter 13 is an example of a light-shielding member that forms an irradiation pattern Pi by partially passing light from the first light source 21 and the second light source 22 condensed by the condenser lens 12. In the irradiation pattern Pi, as shown in FIGS. 1 and 3, the three irradiation points Li are arranged at substantially equal intervals in the direction away from the vehicle 1. Here, when each irradiation point Li is shown individually, the one farthest from the vehicle 1 is referred to as the first irradiation point Li1, and as the vehicle approaches the vehicle 1 from there, the second irradiation point Li2 and the third irradiation point Li3 are in order. And. Therefore, in the irradiation pattern Pi, the first irradiation point Li1 becomes the distant irradiation point, the third irradiation point Li3 becomes the near irradiation point, and the second irradiation point Li2 in between becomes the intermediate irradiation point. In the first embodiment, the first irradiation point Li1 and the second irradiation point Li2 are designated as V-shaped symbols that are wide open, and the first irradiation point Li1 is slightly larger. Further, the third irradiation point Li3 is a character written as "CAR" in the three alphabets, and is formed in a region having a size substantially equal to the region where the second irradiation spot Li2 is formed.
　この照射パターンＰｉは、投影面となる路面２上において、第１照射箇所Ｌｉ１と第２照射箇所Ｌｉ２と第３照射箇所Ｌｉ３とを、後述する矢印方向Ｄａに直交する方向に長尺なものとしつつ、矢印方向Ｄａに並べて形成されている。照射パターンＰｉは、第１照射箇所Ｌｉ１と第２照射箇所Ｌｉ２とが並べられることで、車両１から２つのＶ字形状の頂点が並ぶ矢印方向Ｄａを指し示す矢印のように見せることができる。また、照射パターンＰｉは、第３照射箇所Ｌｉ３を文字としているので、矢印とは別の意図を伝えることができる。この照射パターンＰｉとしての矢印が指し示す方向すなわち両照射箇所（Ｌｉ１、Ｌｉ２）のＶ字形状の頂点が並ぶ方向を矢印方向Ｄａとし、その指し示す側（第１照射箇所Ｌｉ１側）を矢印方向Ｄａの前側とする。 In this irradiation pattern Pi, the first irradiation point Li1, the second irradiation point Li2, and the third irradiation point Li3 are elongated in the direction orthogonal to the arrow direction Da described later on the road surface 2 serving as the projection surface. However, they are formed side by side in the direction of the arrow Da. By arranging the first irradiation point Li1 and the second irradiation point Li2 side by side, the irradiation pattern Pi can be made to look like an arrow pointing to the arrow direction Da in which two V-shaped vertices are lined up from the vehicle 1. Further, since the irradiation pattern Pi uses the third irradiation point Li3 as a character, it is possible to convey an intention different from the arrow. The direction indicated by the arrow as the irradiation pattern Pi, that is, the direction in which the V-shaped vertices of both irradiation points (Li1 and Li2) are lined up is the arrow direction Da, and the pointed side (first irradiation point Li1 side) is the arrow direction Da. The front side.
　その第１照射箇所Ｌｉ１は、矢印方向Ｄａに直交する方向に位置する２つの側端Ｌｉｅが、矢印方向Ｄａの後側に向かうに連れて内側（車両１に近付く側）に向かう傾斜の直線とされている。すなわち、第１照射箇所Ｌｉ１の両側端Ｌｉｅは、矢印方向Ｄａに対して内側に傾斜されている。この３つの照射箇所Ｌｉからなる照射パターンＰｉは、フィルタ１３により形成される。 The first irradiation point Li1 is a straight line in which two side end Lies located in a direction orthogonal to the arrow direction Da are inclined toward the inside (the side approaching the vehicle 1) toward the rear side in the arrow direction Da. Has been done. That is, the both end Lies of the first irradiation point Li1 are inclined inward with respect to the arrow direction Da. The irradiation pattern Pi including the three irradiation points Li is formed by the filter 13.
　フィルタ１３は、図４に示すように、フィルタ部２４がフィルタ枠部２５に設けられている。フィルタ枠部２５は、フィルタ部２４を取り囲む円形の枠状とされており、筐体１５のフィルタ溝に嵌め入れることが可能とされて、筐体１５に取り付けられる（図１参照）。 As shown in FIG. 4, the filter 13 is provided with a filter unit 24 in the filter frame unit 25. The filter frame portion 25 has a circular frame shape surrounding the filter portion 24, can be fitted into the filter groove of the housing 15, and is attached to the housing 15 (see FIG. 1).
　フィルタ部２４は、基本的に光の透過を阻む板状の部材で形成されており、その部材が部分的に切り欠かれて貫通された照射スリット２６が設けられている。照射スリット２６は、集光レンズ１２で集光された第１光源２１、第２光源２２からの光を部分的に通すことで、照射パターンＰｉを所定の形状に成形する。照射スリット２６は、照射パターンＰｉに対応されており、実施例１では３つのスリット部２７で構成されている。 The filter unit 24 is basically formed of a plate-shaped member that blocks the transmission of light, and is provided with an irradiation slit 26 through which the member is partially cut out and penetrated. The irradiation slit 26 partially passes the light from the first light source 21 and the second light source 22 condensed by the condenser lens 12 to form the irradiation pattern Pi into a predetermined shape. The irradiation slit 26 corresponds to the irradiation pattern Pi, and is composed of three slit portions 27 in the first embodiment.
　この３つのスリット部２７は、３つの照射箇所Ｌｉに一対一で対応している。その各スリット部２７は、投影レンズ１４がフィルタ１３（照射スリット２６）を反転させて路面２に投影することから、照射パターンＰｉの各照射箇所Ｌｉの位置関係に対して、投影光軸Ｌｐを中心として回転対象な位置関係とされている（図３、図４参照）。このため、各スリット部２７は、上下方向の最も下側の第１スリット部２７１が、照射パターンＰｉの第１照射箇所Ｌｉ１（遠方照射箇所）に対応する遠方スリット部となる。また、各スリット部２７は、その上の第２スリット部２７２が、第２照射箇所Ｌｉ２（中間照射箇所）に対応する中間スリット部となる。そして、各スリット部２７は、最も上側の第３スリット部２７３が第３照射箇所Ｌｉ３（近方照射箇所）に対応する近方スリット部となる。各スリット部２７は、路面２上で各照射箇所Ｌｉが狙った位置関係となるように、フィルタ部２４上での位置が設定されている。実施例１のフィルタ１３では、上下方向において、第３スリット部２７３が投影光軸Ｌｐよりも上方に設けられ、その下で投影光軸Ｌｐを含む水平線を跨いで第２スリット部２７２が設けられ、その下に第１スリット部２７１が設けられている。このフィルタ１３（照射スリット２６の各スリット部２７）を透過した光は、投影レンズ１４により路面２に投影される。 The three slits 27 have a one-to-one correspondence with the three irradiation points Li. Since the projection lens 14 inverts the filter 13 (irradiation slit 26) and projects it onto the road surface 2, each of the slit portions 27 sets the projected optical axis Lp with respect to the positional relationship of each irradiation point Li of the irradiation pattern Pi. It has a positional relationship that is a rotation target as the center (see FIGS. 3 and 4). Therefore, in each slit portion 27, the lowermost first slit portion 271 in the vertical direction becomes a distant slit portion corresponding to the first irradiation point Li1 (distant irradiation point) of the irradiation pattern Pi. Further, in each slit portion 27, the second slit portion 272 above the slit portion 27 becomes an intermediate slit portion corresponding to the second irradiation point Li2 (intermediate irradiation point). Then, in each slit portion 27, the uppermost third slit portion 273 becomes a near slit portion corresponding to the third irradiation point Li3 (near irradiation point). The position of each slit portion 27 is set on the filter portion 24 so that each irradiation point Li has a targeted positional relationship on the road surface 2. In the filter 13 of the first embodiment, the third slit portion 273 is provided above the projected optical axis Lp in the vertical direction, and the second slit portion 272 is provided below the filter 13 across the horizontal line including the projected optical axis Lp. A first slit portion 271 is provided below the first slit portion 271. The light transmitted through the filter 13 (each slit portion 27 of the irradiation slit 26) is projected onto the road surface 2 by the projection lens 14.
　その第１スリット部２７１と第２スリット部２７２とは、それぞれが対応する第１照射箇所Ｌｉ１および第２照射箇所Ｌｉ２と同様に大きく開くＶ字の記号を模る形状とされており、第１照射箇所Ｌｉ１および第２照射箇所Ｌｉ２に対して上下左右が反転されている。また、第３スリット部２７３は、対応する第３照射箇所Ｌｉ３と同様に３つのアルファベットの「ＣＡＲ」の文字を模る形状とされており、上下左右が反転されている。３つのスリット部２７は、路面２上で各照射箇所Ｌｉが上記した図３に示す大きさで略等間隔となるように、それぞれ路面２までの距離に応じて大きさおよび間隔が設定されている。詳細には、車両用灯具１０は、路面２に対して投影光軸Ｌｐが傾斜して設けられることでフィルタ１３および投影レンズ１４から路面２までの距離が異なるので、投影レンズ１４により路面２上に投影されると各スリット部２７（そこを透過した光である各照射箇所Ｌｉ）がその距離に応じた大きさおよび間隔とされる。 The first slit portion 271 and the second slit portion 272 are shaped to imitate a V-shaped symbol that opens wide like the first irradiation point Li1 and the second irradiation point Li2, respectively, respectively. The top, bottom, left, and right are reversed with respect to the irradiation point Li1 and the second irradiation point Li2. Further, the third slit portion 273 has a shape that imitates the characters of the three alphabets "CAR" like the corresponding third irradiation point Li3, and is inverted up, down, left and right. The sizes and intervals of the three slit portions 27 are set according to the distance to the road surface 2 so that the irradiation points Li are substantially equally spaced on the road surface 2 with the sizes shown in FIG. 3 described above. There is. Specifically, since the projection optical axis Lp of the vehicle lamp 10 is provided so as to be inclined with respect to the road surface 2, the distances from the filter 13 and the projection lens 14 to the road surface 2 are different, so that the projection lens 14 is used on the road surface 2. When projected onto the lens, each slit portion 27 (each irradiation point Li that is the light transmitted through the slit portion 27) has a size and an interval corresponding to the distance.
　このため、各スリット部２７は、路面２上で各照射箇所Ｌｉが上記した大きさで略等間隔となるように、路面２までの距離に応じて大きさおよび間隔が設定されている。具体的には、実施例１では、第１スリット部２７１が細いＶ字の記号を模る形状とされ、第２スリット部２７２が第１スリット部２７１よりも太いＶ字の記号を模る形状とされており、それぞれ対応する照射箇所Ｌｉよりも幅方向に細長くされている。また、実施例１では、第３スリット部２７３は、投影光軸Ｌｐから遠ざかる側に膨らませて湾曲された「ＣＡＲ」の文字列を模る形状とされている。 Therefore, the size and spacing of each slit portion 27 are set according to the distance to the road surface 2 so that the irradiation points Li are substantially equally spaced on the road surface 2 with the above-mentioned size. Specifically, in the first embodiment, the first slit portion 271 has a shape that imitates a thin V-shaped symbol, and the second slit portion 272 has a shape that imitates a V-shaped symbol that is thicker than the first slit portion 271. It is said that they are elongated in the width direction from the corresponding irradiation points Li. Further, in the first embodiment, the third slit portion 273 has a shape that imitates the character string of "CAR" that is inflated and curved toward the side away from the projected optical axis Lp.
　このように、３つのスリット部２７は、各照射箇所Ｌｉとは異なり互いに異なる大きさとされるとともに異なる間隔とされている。各スリット部２７では、対応する照射箇所Ｌｉに対する縮小比が、第１スリット部２７１が最も小さくされており、通った光が路面２上に投影される際に最も大きな拡大率で拡大されて第１照射箇所Ｌｉ１を形成する。また、各スリット部２７では、対応する照射箇所Ｌｉに対する縮小比が、第３スリット部２７３が最も大きくされており、通った光が路面２上に投影される際に最も小さな拡大率で拡大されて第３照射箇所Ｌｉ３を形成する。 As described above, the three slit portions 27 are different in size from each other and have different intervals, unlike each irradiation point Li. In each slit portion 27, the reduction ratio with respect to the corresponding irradiation point Li is the smallest in the first slit portion 271, and when the passing light is projected onto the road surface 2, it is enlarged at the largest enlargement ratio. 1 Irradiation site Li1 is formed. Further, in each slit portion 27, the reduction ratio with respect to the corresponding irradiation point Li is the largest in the third slit portion 273, and when the passing light is projected onto the road surface 2, it is enlarged at the smallest enlargement ratio. The third irradiation point Li3 is formed.
　投影レンズ１４は、図２に示すように、光軸方向で見て円形状の凸レンズとされたレンズ本体部２８と、その周辺を取り巻くフランジ部２９と、を備える。レンズ本体部２８は、実施例１では、入射面および出射面が、凸面とされた自由曲面とされている。レンズ本体部２８は、フィルタ１３の照射スリット２６（その各スリット部２７）を投影することで、図１等に示すように、投影光軸Ｌｐに対して傾斜する路面２上に照射パターンＰｉを形成する。なお、入射面と出射面とは、レンズ本体部２８を凸レンズとするものであれば、凸面でもよく凹面でもよく、実施例１の構成に限定されない。 As shown in FIG. 2, the projection lens 14 includes a lens main body portion 28 which is a convex lens having a circular shape when viewed in the optical axis direction, and a flange portion 29 surrounding the lens main body portion 28. In the first embodiment, the lens body 28 has a free curved surface whose incident surface and exit surface are convex surfaces. By projecting the irradiation slit 26 (each slit portion 27 thereof) of the filter 13, the lens body portion 28 projects the irradiation pattern Pi on the road surface 2 inclined with respect to the projected optical axis Lp, as shown in FIG. 1 and the like. Form. The incident surface and the exit surface may be convex or concave as long as the lens body 28 is a convex lens, and are not limited to the configuration of the first embodiment.
　フランジ部２９は、レンズ本体部２８からレンズ軸を中心とする放射方向に突出しており、レンズ軸を中心する周方向で全周に亘っている。フランジ部２９は、筐体１５の投影レンズ溝１５ｄに嵌め入れることが可能とされている。投影レンズ１４は、フランジ部２９が投影レンズ溝１５ｄに嵌め入れられるとレンズ軸が投影光軸Ｌｐと一致される。 The flange portion 29 protrudes from the lens main body portion 28 in the radial direction centered on the lens axis, and extends over the entire circumference in the circumferential direction centered on the lens axis. The flange portion 29 can be fitted into the projection lens groove 15d of the housing 15. When the flange portion 29 of the projection lens 14 is fitted into the projection lens groove 15d, the lens axis coincides with the projection optical axis Lp.
　次に、第３スリット部２７３の形成について、図４および図５を用いて説明する。第３スリット部２７３は、上記のように３つのアルファベットの「ＣＡＲ」の文字を模る形状とされているので、第１スリット部２７１および第２スリット部２７２と比較して、複雑な形状とされている。このため、第３スリット部２７３は、第１スリット部２７１や第２スリット部２７２よりも、高い形成精度が求められる。これにより、第３スリット部２７３は、「ＣＡＲ」の文字をより正確に模るものとされている。 Next, the formation of the third slit portion 273 will be described with reference to FIGS. 4 and 5. Since the third slit portion 273 has a shape that imitates the characters of the three alphabets "CAR" as described above, it has a complicated shape as compared with the first slit portion 271 and the second slit portion 272. Has been done. Therefore, the third slit portion 273 is required to have higher forming accuracy than the first slit portion 271 and the second slit portion 272. As a result, the third slit portion 273 is supposed to more accurately imitate the characters "CAR".
　詳細には、第３スリット部２７３では、図４の一点鎖線の円を部分的に拡大した図５（ａ）に示すように、各文字の各角部が尖るものとされている。ここで、実施例１のフィルタ１３のフィルタ部２４は、エッチング工法で各スリット部２７を設けている。このエッチング工法では、フィルタ部２４に各スリット部２７の形状をそのまま模ってマスキングを施すと、フィルタ部２４にエッチング処理を行った後の各スリット部２７の角部が、図５（ａ）に一点鎖線で示すように丸まってしまう。このため、フィルタ部２４では、第３スリット部２７３の各角部にエッジの丸まりを回避する補正（以下、エッジ丸み回避補正ともいう）を施している。 Specifically, in the third slit portion 273, each corner of each character is sharpened as shown in FIG. 5 (a), which is a partially enlarged circle of the alternate long and short dash line in FIG. Here, the filter portion 24 of the filter 13 of the first embodiment is provided with each slit portion 27 by an etching method. In this etching method, when the filter portion 24 is masked by imitating the shape of each slit portion 27 as it is, the corner portions of each slit portion 27 after the etching process is performed on the filter portion 24 are shown in FIG. 5A. It curls up as shown by the alternate long and short dash line. Therefore, in the filter unit 24, correction for avoiding roundness of the edge (hereinafter, also referred to as edge roundness avoidance correction) is applied to each corner portion of the third slit portion 273.
　このエッジ丸み回避補正では、図５（ｂ）に示すように、施すマスキングにおいて、第３スリット部２７３の各文字の全ての角部に凸部３１を形成する。この凸部３１は、対応する角部（その内角）の二等分線３２を中心としつつ、その二等分線３２が伸びる方向に突出されており、その突出端３１ａが対応する角部の頂点よりも突出（外側に位置）されている。フィルタ部２４は、マスキングにおける各角部に凸部３１が形成されることにより、エッチング処理を行った後の各スリット部２７の角部を、図５（ａ）に実線で示すように尖らせることができる。このように、マスキングにおける各角部に凸部３１を形成してからエッチング処理を行うことがエッジ丸み回避補正となる。 In this edge rounding avoidance correction, as shown in FIG. 5B, in the masking applied, convex portions 31 are formed at all corners of each character of the third slit portion 273. The convex portion 31 is centered on the bisector 32 of the corresponding corner portion (inner angle thereof), and is projected in the direction in which the bisector 32 extends, and the protruding end 31a is the corresponding corner portion. It protrudes (outside) from the apex. The filter portion 24 has convex portions 31 formed at each corner portion in masking, so that the corner portions of each slit portion 27 after the etching process are sharpened as shown by a solid line in FIG. 5A. be able to. In this way, the edge roundness avoidance correction is performed by performing the etching process after forming the convex portions 31 at each corner portion in the masking.
　このエッジ丸み回避補正は、上記の尖らせる効果を得られる凸部３１を形成できる大きさの下限があることから、それに伴って対象とするスリットの幅寸法にも下限がある。このスリットの幅寸法の下限は、０．２ｍｍとされている。ここで、第３スリット部２７３は、フィルタ部２４上で占有する面積が、フィルタ部２４の各スリット部２７において最も大きいものとされており、幅寸法の下限よりも大きくできる。換言すると、フィルタ部２４では、文字とされた第３照射箇所Ｌｉ３に対応する第３スリット部２７３を最も大きくすることにより、エッジ丸み回避補正を施すことを可能としている。 Since this edge rounding avoidance correction has a lower limit of the size that can form the convex portion 31 that can obtain the above-mentioned sharpening effect, there is also a lower limit of the width dimension of the target slit accordingly. The lower limit of the width dimension of this slit is 0.2 mm. Here, the area occupied by the third slit portion 273 on the filter portion 24 is the largest in each slit portion 27 of the filter portion 24, and can be made larger than the lower limit of the width dimension. In other words, in the filter unit 24, it is possible to perform edge rounding avoidance correction by making the third slit portion 273 corresponding to the third irradiation portion Li3, which is a character, the largest.
　車両用灯具１０は、図２を参照して以下のように組み付けられる。先ず、基板２３に第１光源２１、第２光源２２が実装されて光源部１１が組み付けられ、その光源部１１が設置箇所１６ａに固定されて設置台部１６が構成される。その後、筐体１５の下側部材１５ａにおいて、集光レンズ溝１５ｃに集光レンズ１２を嵌め入れ、フィルタ溝にフィルタ１３を嵌め入れ、投影レンズ溝１５ｄに投影レンズ１４を嵌め入れる。そして、その下側部材１５ａに上側部材１５ｂを嵌め合わせて筐体１５を構成し、その筐体１５の各接続突起１５ｇを対応する接続孔１６ｄに挿入することで、接続壁１６ｃを介して筐体１５が設置台部１６に接続される。これにより、集光レンズ１２とフィルタ１３と投影レンズ１４とが筐体１５に収容されつつ、その筐体１５に光源部１１が接続される。これにより、投影光軸Ｌｐ上に、光源部１１の側から集光レンズ１２とフィルタ１３と投影レンズ１４との順に並ぶ所定の位置関係で配置されて、車両用灯具１０が組み付けられる。 The vehicle lamp 10 is assembled as follows with reference to FIG. First, the first light source 21 and the second light source 22 are mounted on the substrate 23, the light source unit 11 is assembled, and the light source unit 11 is fixed to the installation location 16a to form the installation base unit 16. After that, in the lower member 15a of the housing 15, the condenser lens 12 is fitted into the condenser lens groove 15c, the filter 13 is fitted into the filter groove, and the projection lens 14 is fitted into the projection lens groove 15d. Then, the upper member 15b is fitted to the lower member 15a to form the housing 15, and each connection protrusion 15g of the housing 15 is inserted into the corresponding connection hole 16d to form the housing 15 via the connection wall 16c. The body 15 is connected to the installation base 16. As a result, the condenser lens 12, the filter 13, and the projection lens 14 are housed in the housing 15, and the light source unit 11 is connected to the housing 15. As a result, the light collecting lens 12, the filter 13, and the projection lens 14 are arranged on the projected optical axis Lp in a predetermined positional relationship from the side of the light source unit 11, and the vehicle lamp 10 is assembled.
　次に、車両用灯具１０の作用について説明する。この車両用灯具１０は、投影光軸Ｌｐが車両１の前側に向けられつつ車両１の周辺の路面２に対して傾斜された状態で設けられるとともに、投影光軸Ｌｐが車両１の後側に向けられつつ車両１の周辺の路面２に対して傾斜された状態で設けられる。各車両用灯具１０は、点灯制御回路からの電力を基板２３から両光源（２１、２２）に供給することで、それらを適宜点灯および消灯できる。両光源（２１、２２）からの光は、集光レンズ１２で集光されてフィルタ１３を照射する。そのフィルタ１３上では、第１スリット部２７１よりも第２スリット部２７２が、かつ第２スリット部２７２よりも第３スリット部２７３が、暗くされつつ、その各スリット部２７が幅方向における明るさが略均一なものとされている。この両光源（２１、２２）からの光は、各スリット部２７を通した後に、投影レンズ１４により投影されることで、路面２上で照射パターンＰｉとして形成される。その照射パターンＰｉは、略一直線上に３つの照射箇所Ｌｉが並べられて形成されており、各照射箇所Ｌｉが互いに略等しい明るさとされている。特に、実施例１の車両用灯具１０では、両光源（２１、２２）を単色光としているので、投影レンズ１４における色収差の影響を大幅に抑制することができ、照射パターンＰｉすなわち各照射箇所Ｌｉ（それぞれの形状）を明確なものにできる。 Next, the operation of the vehicle lamp 10 will be described. The vehicle lighting fixture 10 is provided in a state where the projected optical axis Lp is directed toward the front side of the vehicle 1 and is inclined with respect to the road surface 2 around the vehicle 1, and the projected optical axis Lp is located on the rear side of the vehicle 1. It is provided in a state of being inclined with respect to the road surface 2 around the vehicle 1 while being directed. Each vehicle lighting tool 10 can appropriately turn on and off the electric power from the lighting control circuit by supplying electric power from the substrate 23 to both light sources (21 and 22). The light from both light sources (21, 22) is collected by the condenser lens 12 and irradiates the filter 13. On the filter 13, the second slit portion 272 is darker than the first slit portion 271, and the third slit portion 273 is darker than the second slit portion 272, and each slit portion 27 is bright in the width direction. Is considered to be substantially uniform. The light from both the light sources (21 and 22) is projected by the projection lens 14 after passing through each of the slit portions 27, so that the light is formed as an irradiation pattern Pi on the road surface 2. The irradiation pattern Pi is formed by arranging three irradiation points Li on a substantially straight line, and each irradiation point Li has substantially equal brightness to each other. In particular, in the vehicle lamp 10 of the first embodiment, since both light sources (21 and 22) are monochromatic light, the influence of chromatic aberration on the projection lens 14 can be significantly suppressed, and the irradiation pattern Pi, that is, each irradiation point Li. (Each shape) can be clarified.
　２つの車両用灯具１０は、例えば、車両１が駆動状態とされると、それに合わせて第１光源２１、第２光源２２が点灯されて、照射パターンＰｉを路面２上に形成する。これにより、車両用灯具１０は、車両１の前後に存在する者に対して、車両１が駆動状態とされて動き出す可能性があることを知らせることができる。また、車両用灯具１０は、例えば、車両１のギヤが前進側とされた際には前側のものが、車両１のギヤが後退側とされた際には後側のものが、それぞれ照射パターンＰｉを路面２上に形成する。これにより、各車両用灯具１０は、車両１の前側または後側に存在する者に対して、車両１が前後に移動しているもしくは移動しようとしていることを知らせることができる。 For example, when the vehicle 1 is driven, the first light source 21 and the second light source 22 are turned on in the two vehicle lamps 10 to form the irradiation pattern Pi on the road surface 2. As a result, the vehicle lighting fixture 10 can inform those who are in front of and behind the vehicle 1 that the vehicle 1 may be in the driving state and start moving. Further, for the vehicle lighting tool 10, for example, when the gear of the vehicle 1 is on the forward side, the irradiation pattern is on the front side, and when the gear of the vehicle 1 is on the backward side, the irradiation pattern is on the rear side. Pi is formed on the road surface 2. As a result, each vehicle lighting tool 10 can notify a person existing on the front side or the rear side of the vehicle 1 that the vehicle 1 is moving or is about to move back and forth.
　各車両用灯具１０は、形成する照射パターンＰｉの第３照射箇所Ｌｉ３を文字としているので、乗員や周囲の者に伝える意図の種類を大幅に増加させることができる。実施例１の第３照射箇所Ｌｉ３は、「ＣＡＲ」としており、直接は車両１が見えない位置にいる周囲の者に対しても、車両１が存在することを伝えることができる。なお、実施例１の第３照射箇所Ｌｉ３は、「ＣＡＲ」としているが、例えば、車両１の車種名とすることで、乗員におもてなしの意図を伝えることができるとともに、周囲の者に車種名をアピールすることができる。また、第３照射箇所Ｌｉ３は、「ＨＥＬＬＯ」等の挨拶の言葉とすることで、乗員や周囲の者を和ませることができる。なお、この第３照射箇所Ｌｉ３の文字は、適宜設定すればよく、実施例１の構成や上記の例に限定されない。 Since each vehicle lamp 10 uses the third irradiation point Li3 of the irradiation pattern Pi to be formed as a character, the types of intentions to be conveyed to the occupants and those around them can be greatly increased. The third irradiation point Li3 of the first embodiment is set to "CAR", and it is possible to inform the surrounding people who are in a position where the vehicle 1 cannot be directly seen that the vehicle 1 exists. The third irradiation point Li3 of the first embodiment is referred to as "CAR". For example, by using the vehicle model name of the vehicle 1, the intention of hospitality can be conveyed to the occupants and the vehicle model name can be given to the surrounding people. Can be appealed. In addition, the third irradiation point Li3 can be used as a greeting word such as "HELLO" to soften the occupants and those around them. The characters of the third irradiation point Li3 may be appropriately set, and are not limited to the configuration of the first embodiment or the above-mentioned example.
　また、各車両用灯具１０は、第１照射箇所Ｌｉ１および第２照射箇所Ｌｉ２を記号とすることにより、見た者に瞬時に意図を伝えることができるとともに、それとは別に第３照射箇所Ｌｉ３を文字とすることで他の意図も伝えることができる。換言すると、車両用灯具１０は、記号により直感的に意図を伝えるとともに、文字により記号とは異なる多様な意図も併せて伝えることができる。加えて、車両用灯具１０は、最も車両１から遠い位置の第１照射箇所Ｌｉ１を記号としているので、何らかの意図を車両１の周囲の者へと円滑に伝えることができる。また、車両用灯具１０は、最も車両１に近い位置の第３照射箇所Ｌｉ３を文字としているので、それが乗員に向けたものであっても、その意図を乗員に円滑に伝えることができるとともに、車両１の周囲の者への違和感を抑制できる。 Further, each vehicle lamp 10 can instantly convey the intention to the viewer by using the first irradiation point Li1 and the second irradiation point Li2 as symbols, and separately, the third irradiation point Li3 is used. Other intentions can be conveyed by using letters. In other words, the vehicle lamp 10 can intuitively convey the intention by the symbol, and can also convey various intentions different from the symbol by the character. In addition, since the vehicle lighting tool 10 uses the first irradiation point Li1 at the position farthest from the vehicle 1 as a symbol, some intention can be smoothly transmitted to those around the vehicle 1. Further, since the vehicle lighting tool 10 has the third irradiation point Li3 at the position closest to the vehicle 1 as a character, even if it is aimed at the occupant, the intention can be smoothly conveyed to the occupant. , It is possible to suppress a sense of discomfort to those around the vehicle 1.
　加えて、車両用灯具１０は、第１照射箇所Ｌｉ１を第２照射箇所Ｌｉ２よりも大きな寸法としている。このため、車両用灯具１０は、第１照射箇所Ｌｉ１が矢印の記号におけるアローヘッドに相当するとともに第２照射箇所Ｌｉ２が矢印の記号におけるシャフトに相当する印象を与えることができ、２つの記号だけでも矢印方向Ｄａを指し示す印象を与えることができる。特に、車両用灯具１０は、第１照射箇所Ｌｉ１の両側端Ｌｉｅを矢印方向Ｄａに対して内側に傾斜させている。このため、車両用灯具１０は、第１照射箇所Ｌｉ１が矢印の記号におけるアローヘッドに相当する印象をより強く与えることができ、矢印方向Ｄａを指し示す印象をより強く与えることができる。これにより、車両用灯具１０は、車両１の周囲の者に対して、照射パターンＰｉが矢印方向Ｄａを指し示していることを瞬時に把握させることができる。 In addition, the vehicle lamp 10 has a size of the first irradiation point Li1 larger than that of the second irradiation point Li2. Therefore, in the vehicle lamp 10, the first irradiation point Li1 can give the impression that the first irradiation point Li1 corresponds to the arrow head in the arrow symbol and the second irradiation point Li2 corresponds to the shaft in the arrow symbol, and only two symbols can be given. However, it can give the impression of pointing to the arrow direction Da. In particular, in the vehicle lamp 10, the both end Lies of the first irradiation point Li1 are inclined inward with respect to the arrow direction Da. Therefore, in the vehicle lamp 10, the first irradiation point Li1 can give a stronger impression corresponding to the arrow head in the symbol of the arrow, and can give a stronger impression pointing to the arrow direction Da. As a result, the vehicle lighting tool 10 can instantly make people around the vehicle 1 know that the irradiation pattern Pi points to the arrow direction Da.
　実施例１の車両用灯具１０は、以下の各作用効果を得ることができる。 The vehicle lamp 10 of the first embodiment can obtain each of the following effects.
　車両用灯具１０は、照射スリット２６が、遠方照射箇所（第１照射箇所Ｌｉ１）に対応する遠方スリット部（第１スリット部２７１）と、近方照射箇所（第３照射箇所Ｌｉ３）に対応する近方スリット部（第３スリット部２７３）と、を有する。そして、車両用灯具１０では、遠方スリット部を記号を模る形状とし、近方スリット部を文字を模る形状としている。このため、車両用灯具１０は、記号により直感的に意図を伝えることができるとともに、文字により記号とは異なる多様な意図も併せて伝えることができ、照射パターンＰｉで知らせることのできる意図の種類を増やすことができる。 In the vehicle lighting fixture 10, the irradiation slit 26 corresponds to the far slit portion (first slit portion 271) corresponding to the distant irradiation portion (first irradiation portion Li1) and the near irradiation portion (third irradiation portion Li3). It has a near slit portion (third slit portion 273). In the vehicle lamp 10, the far slit portion has a shape that imitates a symbol, and the near slit portion has a shape that imitates a character. Therefore, the vehicle lamp 10 can intuitively convey the intention by the symbol, and can also convey various intentions different from the symbol by the character, and can be notified by the irradiation pattern Pi. Can be increased.
　車両用灯具１０は、近方スリット部（第３スリット部２７３）が複数の文字を模る文字列の形状とされている。このため、車両用灯具１０は、近方スリット部で形成する近方照射箇所（第３照射箇所Ｌｉ３）で知らせることのできる意図の種類を大幅に増やすことができる。 The vehicle lamp 10 has a character string in which the near slit portion (third slit portion 273) imitates a plurality of characters. Therefore, the vehicle lamp 10 can greatly increase the types of intentions that can be notified by the near irradiation point (third irradiation point Li3) formed by the near slit portion.
　車両用灯具１０は、照射スリット２６をエッチング工法で形成し、その近方スリット部（第３スリット部２７３）の各角部にエッジ丸み回避補正を施している。このため、車両用灯具１０は、近方スリット部が文字を模る複雑な形状とされていても、各角部を尖らせることができ、各角部の頂点付近まで光を通すことができる。これにより、車両用灯具１０は、投影した路面２上における近方スリット部の形状の再現性を高めることができ、近方照射箇所（第３照射箇所Ｌｉ３）の文字を明確なものにできる。 In the vehicle lamp 10, the irradiation slit 26 is formed by an etching method, and edge rounding avoidance correction is applied to each corner of the near slit portion (third slit portion 273). Therefore, even if the near-slit portion has a complicated shape that imitates a character, the vehicle lamp 10 can sharpen each corner portion and allow light to pass to the vicinity of the apex of each corner portion. .. As a result, the vehicle lamp 10 can enhance the reproducibility of the shape of the near slit portion on the projected road surface 2, and can clarify the characters of the near irradiation portion (third irradiation portion Li3).
　車両用灯具１０は、光源（２１、２２）から出射された光を遮光部材（フィルタ１３）における照射スリット２６の周辺に集光する集光レンズ１２を備える。このため、車両用灯具１０は、光源（２１、２２）から出射された光を遮光部材において照射スリット２６が設けられた領域に集めることができる。これにより、車両用灯具１０は、光源（２１、２２）からの光を効率よく利用しつつ、遠方照射箇所（第１照射箇所Ｌｉ１）や近方照射箇所（第３照射箇所Ｌｉ３）を明確に形成することができる。 The vehicle lamp 10 includes a condenser lens 12 that collects the light emitted from the light sources (21, 22) around the irradiation slit 26 in the light-shielding member (filter 13). Therefore, the vehicle lamp 10 can collect the light emitted from the light sources (21, 22) in the region provided with the irradiation slit 26 in the light-shielding member. As a result, the vehicle lamp 10 clearly uses the light from the light source (21, 22) to clearly identify the distant irradiation point (first irradiation point Li1) and the near irradiation point (third irradiation point Li3). Can be formed.
　車両用灯具１０は、照射スリット２６が中間照射箇所（第２照射箇所Ｌｉ２）に対応する中間スリット部（第２スリット部２７２）を有する。このため、車両用灯具１０は、実施例１のように中間照射箇所を記号とすることで、遠方照射箇所の記号と協働して意図をより適切に知らせることができる。また、車両用灯具１０は、中間照射箇所を文字とすることで、近方照射箇所の文字と協働してより多くの意図を知らせることができる。 The vehicle lamp 10 has an intermediate slit portion (second slit portion 272) in which the irradiation slit 26 corresponds to the intermediate irradiation portion (second irradiation portion Li2). Therefore, the vehicle lamp 10 can more appropriately convey the intention in cooperation with the symbol of the distant irradiation point by using the intermediate irradiation point as the symbol as in the first embodiment. Further, the vehicle lamp 10 can convey more intentions in cooperation with the characters of the near irradiation portion by using the characters of the intermediate irradiation portion.
　車両用灯具１０は、照射スリット２６において近方スリット部（第３スリット部２７３）を最も大きく（占有する面積）している。このため、車両用灯具１０は、文字を模ることで複雑な形状とされている近方スリット部を適切に形成することができ、そこを通した光による近方照射箇所（第３照射箇所Ｌｉ３）の文字を明確なものにできる。また、車両用灯具１０は、近方スリット部（第３スリット部２７３）を最も大きくすることで、各角部にエッジ丸み回避補正を施すことが容易となり、その効果により路面２上における形状の再現性を高めることができる。 The vehicle lamp 10 has the largest (occupied area) of the near slit portion (third slit portion 273) in the irradiation slit 26. Therefore, the vehicle lamp 10 can appropriately form a near-slit portion having a complicated shape by imitating a character, and a near-irradiation portion (third irradiation portion) by light passing through the near-slit portion. The characters of Li3) can be clarified. Further, in the vehicle lamp 10, by making the near slit portion (third slit portion 273) the largest, it becomes easy to correct the edge roundness avoidance at each corner portion, and due to the effect, the shape on the road surface 2 is formed. Reproducibility can be improved.
　したがって、本開示に係る車両用灯具としての実施例１の車両用灯具１０は、照射パターンＰｉで知らせることのできる意図の種類を増やすことができる。 Therefore, the vehicle lamp 10 of the first embodiment as the vehicle lamp according to the present disclosure can increase the types of intentions that can be notified by the irradiation pattern Pi.
　以上、本開示の車両用灯具を実施例１に基づき説明してきたが、具体的な構成については実施例１に限られるものではなく、特許請求の範囲の各請求項に係る発明の要旨を逸脱しない限り、設計の変更や追加等は許容される。 Although the vehicle lamps of the present disclosure have been described above based on the first embodiment, the specific configuration is not limited to the first embodiment and deviates from the gist of the invention according to each claim within the scope of the claims. Unless otherwise, design changes or additions are allowed.
　なお、実施例１では、３つの照射箇所Ｌｉを車両１から遠ざかる方向に略等しい間隔で整列させて照射パターンＰｉを構成している。しかしながら、照射パターンは、遠方スリット部（第１スリット部２７１）による遠方照射箇所（第１照射箇所Ｌｉ１）が記号であり、近方スリット部（第３スリット部２７３）による近方照射箇所（第３照射箇所Ｌｉ３）が文字であれば、記号の図柄や文字の種類や形成する位置や照射箇所Ｌｉの数等は適宜設定すればよく、実施例１の構成に限定されない。また、車両用灯具１０は、実施例１では車両１の前部と後部とに設けられていたが、車両１に対して照射パターンを形成する位置に応じて車両１に設ければ、ドアミラーに収容したり、前照灯の灯室や尾灯の灯室（車両の後部の左右両側の灯室）に配置したり、車体に設けたりしてもよく、実施例１の構成に限定されない。 In the first embodiment, the three irradiation points Li are arranged at substantially equal intervals in the direction away from the vehicle 1 to form the irradiation pattern Pi. However, in the irradiation pattern, the distant irradiation point (first irradiation point Li1) by the distant slit portion (first slit portion 271) is a symbol, and the near irradiation point (first irradiation point 273) by the near slit portion (third slit portion 273). 3 If the irradiation point Li3) is a character, the symbol design, the type of character, the position to be formed, the number of irradiation points Li, and the like may be appropriately set, and the configuration is not limited to that of the first embodiment. Further, although the vehicle lighting fixture 10 is provided in the front portion and the rear portion of the vehicle 1 in the first embodiment, if the vehicle lighting tool 10 is provided in the vehicle 1 according to the position where the irradiation pattern is formed with respect to the vehicle 1, the door mirror can be used. It may be accommodated, arranged in a headlight room, a taillight room (light rooms on both the left and right sides of the rear part of the vehicle), or provided on a vehicle body, and is not limited to the configuration of the first embodiment.
　また、実施例１では、第１光源２１と第２光源２２とを白色の光を出射するものとしている。しかしながら、光源から出射する光の色は、設ける箇所や伝える内容に合わせて適宜設定すればよく、実施例１の構成に限定されない。 Further, in the first embodiment, it is assumed that the first light source 21 and the second light source 22 emit white light. However, the color of the light emitted from the light source may be appropriately set according to the location to be provided and the content to be transmitted, and is not limited to the configuration of the first embodiment.
　さらに、実施例１では、遮光部材として、集光レンズ１２で集光された光を照射スリット２６から通すフィルタ１３を用いている。しかしながら、遮光部材は、集光レンズ１２で集光された光を部分的に通す照射スリット２６が設けられたものであれば、他の構成でもよく、各実施例の構成に限定されない。その他の構成としては、例えば、光の透過を阻む板状のフィルム部材に、光を部分的に透過させる照射スリットを設け、集光レンズ１２を経た光を照射スリットから透過させる遮光板とすることができる。 Further, in the first embodiment, a filter 13 for passing the light collected by the condenser lens 12 through the irradiation slit 26 is used as the light shielding member. However, the light-shielding member may have another configuration as long as it is provided with an irradiation slit 26 that partially passes the light condensed by the condenser lens 12, and is not limited to the configuration of each embodiment. As another configuration, for example, a plate-shaped film member that blocks light transmission is provided with an irradiation slit that partially transmits light, and a light-shielding plate that transmits light that has passed through the condenser lens 12 through the irradiation slit. Can be done.
　実施例１では、運転手が運転する車両１に車両用灯具１０を設けている。しかしながら、車両用灯具は、自動運転機能を有する車両に設けられてもよく、実施例１の構成に限定されない。この場合、車両用灯具は、設けられる用途に応じたタイミング、すなわち車両１の動作に関する何らかの意図に応じたタイミングで照射パターンを形成すればよく、実施例１の構成に限定されない。 In the first embodiment, the vehicle lighting tool 10 is provided in the vehicle 1 driven by the driver. However, the vehicle lighting equipment may be provided in a vehicle having an automatic driving function, and is not limited to the configuration of the first embodiment. In this case, the lighting fixture for a vehicle may form an irradiation pattern at a timing according to the intended use, that is, at a timing according to some intention regarding the operation of the vehicle 1, and is not limited to the configuration of the first embodiment.
　実施例１では、光源部１１がヒートシンク（放熱箇所１６ｂ）としての機能を有する設置台部１６に設けられており、この設置台部１６が筐体１５に接続される構成とされている。しかしながら、車両用灯具は、光源からの光を集光レンズで遮光部材上に集光し、投影レンズで投影することで照射パターンを形成するものであれば、光源部は筐体の端部に設けられてもよく、他の構成でもよく、実施例１の構成に限定されない。 In the first embodiment, the light source portion 11 is provided on the installation base portion 16 having a function as a heat sink (heat dissipation portion 16b), and the installation base portion 16 is connected to the housing 15. However, if the light source for a vehicle is to collect the light from the light source on a light-shielding member with a light-shielding lens and project it with a projection lens to form an irradiation pattern, the light source unit is located at the end of the housing. It may be provided or may be another configuration, and is not limited to the configuration of the first embodiment.
　実施例１では、遮光部材（フィルタ１３）の照射スリット２６に中間スリット部（第２スリット部２７２）を設けて、記号としての中間照射箇所（第２照射箇所Ｌｉ２）を形成している。しかしながら、車両用灯具は、遠方スリット部（第１スリット部２７１）により記号の遠方照射箇所（第１照射箇所Ｌｉ１）を形成するとともに、近方スリット部（第３スリット部２７３）により文字の近方照射箇所（第３照射箇所Ｌｉ３）を形成すれば、中間照射箇所（中間スリット部）が設けなくてもよく、中間照射箇所（中間スリット部）を複数設けてもよく、実施例１の構成に限定されない。また、中間照射箇所（中間スリット部）は、文字としてもよく、実施例１の構成に限定されない。 In Example 1, an intermediate slit portion (second slit portion 272) is provided in the irradiation slit 26 of the light-shielding member (filter 13) to form an intermediate irradiation portion (second irradiation portion Li2) as a symbol. However, in the vehicle lighting equipment, the far slit portion (first slit portion 271) forms the far irradiation point (first irradiation point Li1) of the symbol, and the near slit portion (third slit portion 273) forms the character near. If the one-sided irradiation point (third irradiation point Li3) is formed, the intermediate irradiation point (intermediate slit portion) may not be provided, or a plurality of intermediate irradiation points (intermediate slit portion) may be provided. Not limited to. Further, the intermediate irradiation portion (intermediate slit portion) may be a character and is not limited to the configuration of the first embodiment.
　実施例１では、近方スリット部（第３スリット部２７３）により形成する近方照射箇所（第３照射箇所Ｌｉ３）を、「ＣＡＲ」の３文字としている。しかしながら、近方照射箇所（近方スリット部）は、文字とされていれば、その字数（１文字も含む）や内容は適宜設定すればよく、実施例１の構成に限定されない。 In the first embodiment, the near irradiation portion (third irradiation portion Li3) formed by the near slit portion (third slit portion 273) has three characters of "CAR". However, if the near irradiation portion (near slit portion) is a character, the number of characters (including one character) and the content may be appropriately set, and the configuration is not limited to that of the first embodiment.
　１０　車両用灯具　　
　１２　集光レンズ　　
　１３　（遮光部材の一例としての）フィルタ　　
　１４　投影レンズ　　　２１　（光源の一例としての）第１光源　　
　２１　（光源の一例としての）第２光源　　
　２６　照射スリット　　
　２７１　（遠方スリット部の一例としての）第１スリット部　　
　２７２　（中間スリット部の一例としての）第２スリット部　　
　２７３　（近方スリット部の一例としての）第３スリット部　　
　Ｌｉ１　（遠方照射箇所の一例としての）第１照射箇所　　
　Ｌｉ２　（中間照射箇所の一例としての）第２照射箇所　　
　Ｌｉ３　（近方照射箇所の一例としての）第３照射箇所　　
　Ｐｉ　照射パターン 10 Vehicle lamps
12 Condensing lens
13 Filter (as an example of shading member)
14 Projection lens 21 First light source (as an example of a light source)
21 Second light source (as an example of a light source)
26 Irradiation slit
271 First slit (as an example of a distant slit)
272 Second slit (as an example of intermediate slit)
273 Third slit (as an example of near slit)
Li1 1st irradiation point (as an example of a distant irradiation point)
Li2 Second irradiation point (as an example of intermediate irradiation point)
Li3 3rd irradiation point (as an example of near irradiation point)
Pi irradiation pattern

Claims (6)

  1. 　光源と、
    　前記光源からの光を部分的に通す照射スリットが設けられた遮光部材と、
    　前記遮光部材を通した光を投影して照射パターンを形成する投影レンズと、を備え、
    　前記照射スリットは、前記照射パターンにおいて遠い位置に投影される遠方照射箇所に対応する遠方スリット部と、前記照射パターンにおいて近い位置に投影される近方照射箇所に対応する近方スリット部と、を有し、
    　前記遠方スリット部は、記号を模る形状とされ、
    　前記近方スリット部は、文字を模る形状とされていることを特徴とする車両用灯具。     Light source and
    A light-shielding member provided with an irradiation slit that partially passes light from the light source, and
    A projection lens that projects light through the light-shielding member to form an irradiation pattern, is provided.
    The irradiation slit includes a distant slit portion corresponding to a distant irradiation point projected at a distant position in the irradiation pattern and a near slit portion corresponding to a near irradiation point projected at a near position in the irradiation pattern. Have and
    The distant slit portion has a shape that imitates a symbol.
    The near-slit portion is a vehicle lamp characterized in that it has a shape that imitates a character.
  2. 　前記近方スリット部は、複数の文字を模る文字列の形状とされていることを特徴とする請求項１に記載の車両用灯具。 The vehicle lamp according to claim 1, wherein the near slit portion is in the shape of a character string that imitates a plurality of characters.
  3. 　前記照射スリットは、エッチング工法で形成され、
    　前記近方スリット部は、角部にエッジ丸み回避補正が施されていることを特徴とする請求項１に記載の車両用灯具。     The irradiation slit is formed by an etching method and is formed.
    The vehicle lamp according to claim 1, wherein the near slit portion is provided with edge roundness avoidance correction at a corner portion.
  4. 　さらに、前記光源から出射された光を前記遮光部材における前記照射スリットの周辺に集光する集光レンズを備えることを特徴とする請求項１に記載の車両用灯具。 The vehicle lamp according to claim 1, further comprising a condensing lens that collects light emitted from the light source around the irradiation slit in the light-shielding member.
  5. 　前記照射スリットは、前記照射パターンにおいて前記遠方照射箇所と前記近方照射箇所との間の中間照射箇所に対応する中間スリット部を有することを特徴とする請求項１に記載の車両用灯具。 The vehicle lamp according to claim 1, wherein the irradiation slit has an intermediate slit portion corresponding to an intermediate irradiation portion between the far irradiation portion and the near irradiation portion in the irradiation pattern.
  6. 　前記照射スリットは、前記近方スリット部が最も大きくされていることを特徴とする請求項１に記載の車両用灯具。
          The vehicle lamp according to claim 1, wherein the irradiation slit has the largest near-slit portion.
PCT/JP2021/028868 2020-08-24 2021-08-04 Vehicle lighting WO2022044731A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018098066A (en) * 2016-12-14 2018-06-21 トヨタ自動車株式会社 Lighting device for vehicle
WO2018198156A1 (en) * 2017-04-24 2018-11-01 三菱電機株式会社 Notification control device and notification control method
JP2020102332A (en) * 2018-12-21 2020-07-02 スタンレー電気株式会社 Vehicular road surface drawing light projection unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018098066A (en) * 2016-12-14 2018-06-21 トヨタ自動車株式会社 Lighting device for vehicle
WO2018198156A1 (en) * 2017-04-24 2018-11-01 三菱電機株式会社 Notification control device and notification control method
JP2020102332A (en) * 2018-12-21 2020-07-02 スタンレー電気株式会社 Vehicular road surface drawing light projection unit

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