WO2023219044A1 - Accessoire de lampe de véhicule - Google Patents

Accessoire de lampe de véhicule Download PDF

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Publication number
WO2023219044A1
WO2023219044A1 PCT/JP2023/017172 JP2023017172W WO2023219044A1 WO 2023219044 A1 WO2023219044 A1 WO 2023219044A1 JP 2023017172 W JP2023017172 W JP 2023017172W WO 2023219044 A1 WO2023219044 A1 WO 2023219044A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
attached
light guide
reflector
shade
Prior art date
Application number
PCT/JP2023/017172
Other languages
English (en)
Japanese (ja)
Inventor
豊 岡村
章宏 加藤
彰裕 炭家
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2023219044A1 publication Critical patent/WO2023219044A1/fr

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Classifications

    • 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • 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
    • F21W2103/20—Direction indicator lights
    • 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
    • F21W2103/35—Brake lights
    • 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
    • F21W2103/55—Daytime running lights [DRL]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to the technical field of a vehicular lamp having a light guide that guides and emits incident light.
  • the vehicular lamp described in Patent Document 1 is provided with a round shaft-shaped light guide that extends in a predetermined direction.
  • the light guide light is incident from an entrance surface that is one end surface in the longitudinal direction, and the incident light is emitted while being guided in the longitudinal direction.
  • the light guide is provided with an attached portion protruding in a predetermined direction at the end in the longitudinal direction, and the attached portion is attached to a mounting member, a lamp housing, etc. by screwing.
  • the light guide is formed in a shape extending in a predetermined direction, and in order to ensure the stability of the attached state, there are attached parts at both ends in the longitudinal direction. is often provided.
  • an incident surface into which light emitted from the light source enters is formed at both ends of the light guide in the longitudinal direction, a portion of the light incident from the incident surface enters the attached part. There is a risk. If part of the light is incident on the attached part, the incident light may be emitted from the attached part as unnecessary leakage light, which may affect the light distribution pattern or deteriorate the appearance.
  • an object of the vehicle lamp of the present invention is to suppress the emission of leaked light from the attached part.
  • a vehicular lamp according to the present invention includes a light source that emits light, a light guide portion that guides the incident light, and a light guide portion that is bent with respect to the light guide portion.
  • a light guide having an attached part attached to a predetermined attachment part, and a continuous part of the light guide part and the attached part has an outer circumferential dimension smaller than the outer circumferential dimension of the attached part. It was formed as a division.
  • the light incident from the incident surface is less likely to enter the attached part, the light is less likely to be emitted from the attached part, and the emission of leaked light from the attached part can be suppressed. .
  • FIG. 3 is a rear view showing a part of the light guide.
  • FIG. 7 is an enlarged front view showing a state in which the incident side end of the light guide is inserted into the insertion hole and positioned.
  • FIG. 3 is a perspective view showing the shade as seen from a different direction from FIG. 2;
  • FIG. 3 is a cross-sectional view showing a state in which the attached part is attached.
  • front, back, top, bottom, left, and right directions will be described with the direction of light emitted from the vehicle lamp being the front.
  • the directions of front, rear, top, bottom, left and right shown below are for convenience of explanation, and the implementation of the present invention is not limited to these directions.
  • the vehicle light of the present invention is preferably used as a clearance lamp, a turn signal lamp, or a daytime running lamp when it is attached to the front end of the vehicle body, and when it is attached to the rear end of the vehicle body. It is suitable for use as a tail lamp, stop lamp, or turn signal lamp.
  • the vehicular lamp 1 includes a lamp housing 2 that is open from the front or from the front to the sides, and a cover 3 that closes the opening of the lamp housing 2 (see FIG. 1).
  • the lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and an internal space of the lamp outer casing 4 is formed as a lamp chamber 4a.
  • an inner lens 5 for controlling transmitted light
  • a light source 6 mounted on a substrate (not shown)
  • a light guide 7 for guiding the light emitted from the light source 6 (FIGS. 1 and 4). (See 3).
  • various members such as an extension may be arranged in the lamp chamber 4a.
  • the inner lens 5 is formed in a shape that extends substantially left and right, and is arranged in an intermediate region in the left and right direction of the lamp chamber 4a.
  • a diffusion step (not shown) is formed in the inner lens 5, and the light transmitted through the inner lens 5 is emitted in a diffused state by the diffusion step.
  • the light source 6 for example, a light emitting diode (LED) is used.
  • LED light emitting diode
  • the light guide 7 has a light guide part 8 extending in a predetermined direction, for example, approximately in the left-right direction, and a pair of attached parts 9 bent in a direction toward each other with respect to both longitudinal ends of the light guide part 8. For example, it is formed in a laterally symmetrical shape.
  • Both end surfaces in the longitudinal direction of the light guide section 8 are each formed as an entrance surface 10 into which the light emitted from the light source 6 is incident (see FIG. 4).
  • the entrance surface 10 is, for example, formed in a circular shape.
  • Both ends of the light guide section 8 in the longitudinal direction are provided as incident side ends 8a.
  • the front surface of the portion of the light guide section 8 excluding the incident side end 8a is formed as an output surface 11 (see FIG. 2).
  • the rear surface of the light guide section 8 is formed as a reflective surface 12 (see FIG. 4).
  • First reflective steps 13 are formed in the light guide portion 8 near both ends in the longitudinal direction (see FIG. 2).
  • the light that reaches the first reflection step 13 is reflected by the first reflection step 13 and guided by the light guide section 8 . Therefore, unnecessary light is less likely to be emitted from the light guide section 8 by the first reflection step 13, and the light can be used effectively.
  • a second reflective step 12a extending in the longitudinal direction is formed on the reflective surface 12 of the light guide portion 8 (see FIG. 4).
  • the light incident from the entrance surface 10 is reflected by the second reflection step 12a, and is emitted forward from the exit surface 11 while being guided by the light guide section 8.
  • a third reflective step 12b extending in the longitudinal direction is formed on the reflective surface 12 of the light guiding portion 8.
  • the third reflective step 12b is formed along both ends of the second reflective step 12a.
  • the light incident from the entrance surface 10 is reflected by the third reflection step 12b, and is emitted from the exit surface 11 while being guided by the light guide section 8.
  • the light reflected at the third reflection step 12b is emitted from the output surface 11 diagonally upward in the front direction or diagonally upward in the side direction. Therefore, the light is reflected at the second reflection step 12a and emitted forward from the output surface 11, and the light is reflected at the third reflection step 12b and emitted from the output surface 11 diagonally upward in front or diagonally upward laterally.
  • the light irradiates a wide range of areas from the front to the top, making it possible to improve visibility.
  • the light guide body 7 is provided with substantially flat plate-shaped auxiliary emission parts 14 that respectively protrude from both ends in the longitudinal direction of the light guide part 8 (see FIGS. 2 and 4).
  • the auxiliary output part 14 protrudes from the light guide part 8 from laterally diagonally downward to downward, and the auxiliary output part 14 has a diffusion step 14a formed on the front surface and a reflection step 14b formed on the rear surface. .
  • Some of the light emitted from the light source 6 and incident on the entrance surface 10 reaches the auxiliary output part 14, but the light that reaches the auxiliary output part 14 is reflected toward the front side by the reflection step 14b and diffused.
  • the light is emitted forward in a diffused state by step 14a. Therefore, the auxiliary emitting section 14 can make effective use of light and ensure that the desired range is irradiated with light.
  • the attached portion 9 protrudes from both ends of the light guide portion 8 in the longitudinal direction, is bent with respect to the light guide portion 8, and is formed in a horizontally elongated shape extending substantially left and right.
  • a step portion 15 that opens forward and upward is formed in the front portion of the attached portion 9, and the step portion 15 is constituted by a first surface 15a facing forward and a second surface 15b facing upward. There is.
  • the lower edge of the first surface 15a and the rear edge of the second surface 15b are continuous.
  • the continuous portion of the light guiding portion 8 and the attached portion 9 is formed as a constricted portion 16, and the constricted portion 16 is formed with, for example, two recesses 16a that are opened in opposite directions.
  • the surface forming the recess 16a is curved.
  • the outer circumferential dimension H1 of the constricted portion 16 is smaller than the outer circumferential dimension H2 of the attached portion 9 (see FIG. 4). Therefore, in the cross-sectional shape taken along the outer circumferences of the attached portion 9 and the constricted portion 16, the cross-sectional area of the constricted portion 16 is smaller than the cross-sectional area of the attached portion 9.
  • the cross-sectional area of the constricted portion 16 is made smaller than the cross-sectional area of the end portion 9a of the attached portion 9 on the constricted portion 16 side.
  • the surface forming the concave portion 16a in the constricted portion 16 is formed into a curved surface, the light guide portion 8 and the attached portion 9 are connected by the curved surface, and stress is difficult to concentrate on the constricted portion 16.
  • the constricted portion 16 can be easily processed and the light guide 7 can be easily formed.
  • the number of recesses 16a formed in the constriction 16 is arbitrary, and a plurality of recesses 16a may be formed spaced apart in the circumferential direction, or the recesses 16a may be formed around the entire circumference of the constriction 16. good.
  • the light guide 7 configured as described above is held by the reflector 17 and the shade 18 (see FIGS. 2 and 3).
  • the reflector 17 has a function of reflecting light
  • the shade 18 has a function of performing control such as blocking light or reducing the amount of light emitted.
  • the reflector 17 extends substantially in the left-right direction and is formed in a symmetrical shape.
  • the reflector 17 has left and right portions provided as end-side holding portions 19, and portions other than the end-side holding portions 19 are provided as an intermediate-side holding portion 20.
  • the reflector 17 is made of a colored material such as white, and has an arrangement recess 17a in which the reflective surface 12 of the light guide section 8 is positioned facing. .
  • the light is reflected on the surface of the light guide 17a and enters the light guide section 8 again. Therefore, it is possible to utilize light effectively.
  • the end holding portion 19 is provided with a pedestal portion 21 facing in the up-down direction, a standing wall surface portion 22 facing in the front-back direction, and a hole-forming surface portion 23 facing in the front-back direction (see FIG. 3).
  • a portion of the vertical wall surface portion 22 is provided on the rear side of the pedestal portion 21 so as to be continuous with the rear edge of the pedestal portion 21 .
  • the hole-forming surface portion 23 has an upper edge continuous with the front edge of the pedestal portion 21 on the front side of the pedestal portion 21 .
  • first receiving protrusions 24 are provided on the receiving base portion 21, spaced apart from each other in the left and right directions.
  • the first receiving protrusion 24 extends back and forth, and is formed, for example, in a substantially semi-cylindrical shape that is convex upward.
  • An insertion hole 25 is formed in the vertical wall surface portion 22 at the outer end in the left-right direction.
  • a plurality of positioning protrusions 25a protruding toward the center are provided at the opening edge of the insertion hole 25 and spaced apart in the circumferential direction (see FIG. 5).
  • a light-shielding protrusion 26 is provided extending substantially left and right from the upper end of the front surface of the vertical wall surface portion 22 (see FIG. 3).
  • the light-shielding protrusion 26 is provided as an insertion portion 26a whose outer end in the left-right direction is bent downward.
  • Position regulating protrusions 27 that protrude forward are provided on the vertical wall surface portion 22 on both sides of the light shielding protrusion 26 .
  • Two second receiving protrusions 28 are provided on the vertical wall surface portion 22 below the light-shielding protrusion 26 and are spaced apart from each other in the left and right directions.
  • a coupling hole 22 a is formed in the vertical wall surface section 22 immediately above the pedestal section 21 .
  • a positioning hole 23a is formed in the hole forming surface portion 23.
  • the shade 18 is made of a colored material, such as white, and has a function of preventing direct light emitted from the light source 6 from being seen from the outside. Therefore, in the vehicle lamp 1, the light that enters the light guide 7 from the light source 6 and is emitted from the light guide 7 is made visible from the front via the reflector 17.
  • the shade 18 has a cover base part 29 and a cover protrusion 30, and is coupled to the reflector 17 while covering the end holding part 19 from the front side (see FIGS. 2, 3, and 6).
  • the cover base portion 29 has a top surface portion 31 facing in the vertical direction and an upright surface portion 32 protruding substantially downward from the front edge of the top surface portion 31.
  • a scattering step 32a is formed on the rear surface of the vertical surface portion 32, and the scattering step 32a is located approximately in the outer half in the left-right direction (see FIG. 6).
  • part of the light incident from the light source 6 is emitted from the entrance end 8a of the light guide 8, but at least part of the emitted light is scattered (diffused) by the scattering step 32a. ), so that the so-called point light condition in which the light is concentrated at approximately one point and is visible is prevented, and visibility is improved.
  • the shade 18 is provided with an engaging protrusion 33 and an alignment protrusion 34 that respectively protrude rearward.
  • the engagement protrusion 33 protrudes rearward from the rear surface of the top surface part 31, and has a locking protrusion 33a at its tip.
  • the engaging protrusion 33 is elastically deformable substantially vertically relative to the top surface portion 31.
  • the positioning projection 34 projects rearward from the vertical surface 32 and is located on the side of the scattering step 32a.
  • the cover protrusion 30 is formed in a box shape that is open downward and rearward, and has a wall portion 35 facing in the front-rear direction and a circumferential surface portion 36 protruding rearward from the outer periphery of the wall portion 35.
  • the cover protrusion 30 is provided so as to protrude upward from the rear end side portion of the cover base portion 29.
  • two pressing protrusions 37 protrude from the rear surface of the wall portion 35.
  • the holding protrusions 37 are spaced apart from each other in the left and right directions, and are formed into a substantially trapezoidal shape whose vertical width becomes smaller toward the tip.
  • the light guide 7 is arranged with the reflective surface 12 of the light guide 8 facing the arrangement recess 17a of the reflector 17 from the front, and the incident end 8a is inserted into the insertion hole 25 of the reflector 17 from the front. (See Figure 5). At this time, the incident side end 8a is positioned with respect to the reflector 17 by engaging the plurality of positioning protrusions 25a on the outer peripheral surface. Therefore, the light source 6 is positioned opposite to the center of the entrance surface 10.
  • a plurality of positioning protrusions 25a are provided at the opening edge of the insertion hole 25 at intervals in the circumferential direction, and the positioning protrusions 25a engage with the outer circumferential surface of the entrance side end 8a.
  • the light guide section 8 is positioned on the reflector 17.
  • the light guide section 8 is positioned on the reflector 17 by inserting the entrance end 8a into the insertion hole 25, so that the light guide section 8 can be easily and accurately positioned with respect to the reflector 17.
  • the attached part 9 is inserted from the front between the first receiving protrusion 24 and the light shielding protrusion 26 of the reflector 17. (See Figure 7).
  • the attached part 9 is received by the two first receiving protrusions 24 from below and by the two second receiving protrusions 28 from the rear or side. At this time, at least a portion of the attached portion 9 is covered by the light shielding protrusion 26 from above.
  • the shade 18 is coupled to the reflector 17 (see FIG. 3).
  • the alignment protrusion 34 is inserted into the alignment hole 23a from the front side and positioned on the reflector 17, and the engagement protrusion 33 is inserted into the coupling hole 22a from the front side.
  • the engagement protrusion 33 is inserted into the coupling hole 22a from the front side, the locking protrusion 33a is slid on the upper opening edge of the coupling hole 22a, the engagement protrusion 33 is elastically deformed, and the locking protrusion 33a
  • the engagement protrusion 33 is elastically restored by passing over the upper opening edge of the coupling hole 22a.
  • the shade 18 is coupled to the reflector 17 by the engagement protrusion 33a of the engagement protrusion 33 being engaged with the rear opening edge of the coupling hole 22a.
  • the cover protrusion 30 of the shade 18 is inserted between the two position regulating protrusions 27 of the reflector 17, and the shade 18 is coupled to the reflector 17 with its position relative to the reflector 17 being regulated.
  • the pressing protrusion 37 of the shade 18 is engaged with the first surface 15a of the attached part 9, and the attached part 9 is pressed by the pressing protrusion 37 (see FIG. (see 7). At this time, the pressing protrusion 37 may also be engaged with the second surface 15b.
  • the holding protrusion 37 is provided on the shade 18, and the stepped portion 15 is formed on the attached part 9 by the continuous first surface 15a and second surface 15b facing in different directions, and the attached part 9 is pressed by the shade 18 when the pressing protrusion 37 is engaged with at least one of the first surface 15a and the second surface 15b.
  • the holding protrusion 37 of the shade 18 is engaged with the stepped portion 15 and the mounted part 9 is mounted in a state of being pressed by the reflector 17 and the shade 18, so that the mounted part 9 can be mounted in a stable state. can.
  • the attached part 9 is attached to the reflector 17 and the shade 18 by being pressed by the holding protrusion 37 of the shade 18 and also being received and pressed by the first receiving protrusion 24 and the second receiving protrusion 28 of the reflector 17. . Therefore, each part of the reflector 17 and the shade 18 functions as a mounting part to which the mounted part 9 is mounted.
  • the incident side end 8a of the light guide part 8 and the attached part 9 are covered by the shade 18 and the reflector 17, and the attached part 9 is attached to the reflector 17 and the shade 18, so that the reflector 17 and the shade are covered. It is held at 18.
  • the shade 18 When the shade 18 is coupled to the reflector 17 , the upper surface of the peripheral surface 36 of the shade 18 is positioned above the light-shielding protrusion 26 of the reflector 17 . Further, the insertion portion 26a of the light shielding protrusion 26 is inserted into the recess 16a formed in the constricted portion 16 of the light guide 7 from above.
  • the light emitted from the light source 6 enters the light guide portion 8 from the entrance surface 10.
  • the light incident on the light guide part 8 is reflected by the reflection surface 12, guided by the light guide part 8, and emitted from the output surface 11, transmitted through the inner lens 5 and the cover 3 in order, and irradiated forward.
  • the shade 18 suppresses unnecessary light from being emitted forward.
  • the constricted portion 16 is formed to be smaller than the dimensions, the area of the light incident path to the attached part 9 is small, and the incidence of light to the attached part 9 is suppressed.
  • the vehicular lamp 1 is provided with the light guide body 7 having the light guide part 8 that guides the incident light and the attached part 9 that is bent with respect to the light guide part 8.
  • the continuous portion of the light guiding portion 8 and the attached portion 9 is formed as a constricted portion 16 whose outer periphery is smaller than the outer circumferential dimension of the attached portion 9 .
  • the light incident from the incident surface 10 is less likely to enter the attached part 9, and the light is less likely to be emitted from the attached part 9. Emission of leakage light from the portion 9 can be suppressed.
  • the reflector 17 is provided with a light-shielding protrusion 26 that covers at least a part of the attached part 9, at least a part of the attached part 9 is covered by the light-shielding protrusion 26 when the attached part 9 is attached. covered.
  • the reflector 17 and the shade 18 are combined, and the mounted portion 9 is attached while being pressed by a portion of the reflector 17 and a portion of the shade 18 from at least opposite sides.
  • the attached part 9 is attached to the attachment part while being pressed by the reflector 17 and the shade 18, so that it is difficult to attach the attached part 9 to the reflector 17 or the shade 18. No mounting screws or the like are required, and the light guide 7 can be mounted easily and quickly.
  • SYMBOLS 1 Vehicle lamp, 6... Light source, 7... Light guide, 8... Light guide part, 8a... Incident side end part, 9... Attached part, 10... Incident surface, 15... Step part, 15a... First Surface, 15b...second surface, 16...constriction, 16a...recess, 17...reflector, 18...shade, 25...insertion hole, 25a...positioning protrusion, 26...light shielding protrusion, 37...pressing protrusion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention comprend : une source de lumière qui émet de la lumière ; et un corps de guidage de lumière qui comprend une section de guidage de lumière qui a une surface d'entrée dans laquelle pénètre la lumière émise par la source de lumière et qui guide la lumière qui est entrée et une section fixée qui est courbée par rapport à la section de guidage de lumière et qui est fixée à une section de fixation prescrite. Une partie où la section de guidage de lumière et la section fixée sont continues est formée sous la forme d'une section rétrécie ayant une dimension périphérique externe inférieure à la dimension périphérique externe de la section fixée. En conséquence, il devient difficile pour la lumière qui est entrée à travers la surface d'entrée d'entrer dans la section fixée, ce qui rend difficile l'émission de lumière à partir de la section fixée et permet la suppression de l'émission de lumière de fuite à partir de la section fixée.
PCT/JP2023/017172 2022-05-13 2023-05-02 Accessoire de lampe de véhicule WO2023219044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022079800 2022-05-13
JP2022-079800 2022-05-13

Publications (1)

Publication Number Publication Date
WO2023219044A1 true WO2023219044A1 (fr) 2023-11-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170234500A1 (en) * 2014-10-14 2017-08-17 Valeo Lighting Hubei Technical Center Co. Ltd. Light guiding device and vehicle lamp
JP2017195051A (ja) * 2016-04-19 2017-10-26 本田技研工業株式会社 車両用照光装置
JP2020071914A (ja) * 2018-10-29 2020-05-07 株式会社小糸製作所 車輌用灯具
JP2021177451A (ja) * 2020-05-07 2021-11-11 株式会社小糸製作所 車両用灯具
CN215216050U (zh) * 2021-07-01 2021-12-17 上海常诚车灯科技有限公司 一种防止遮挡区域的光导结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170234500A1 (en) * 2014-10-14 2017-08-17 Valeo Lighting Hubei Technical Center Co. Ltd. Light guiding device and vehicle lamp
JP2017195051A (ja) * 2016-04-19 2017-10-26 本田技研工業株式会社 車両用照光装置
JP2020071914A (ja) * 2018-10-29 2020-05-07 株式会社小糸製作所 車輌用灯具
JP2021177451A (ja) * 2020-05-07 2021-11-11 株式会社小糸製作所 車両用灯具
CN215216050U (zh) * 2021-07-01 2021-12-17 上海常诚车灯科技有限公司 一种防止遮挡区域的光导结构

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