WO2021235345A1 - Guide de lumière de véhicule et phare de véhicule - Google Patents

Guide de lumière de véhicule et phare de véhicule Download PDF

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Publication number
WO2021235345A1
WO2021235345A1 PCT/JP2021/018401 JP2021018401W WO2021235345A1 WO 2021235345 A1 WO2021235345 A1 WO 2021235345A1 JP 2021018401 W JP2021018401 W JP 2021018401W WO 2021235345 A1 WO2021235345 A1 WO 2021235345A1
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WO
WIPO (PCT)
Prior art keywords
light
light guide
incident
vehicle
unit
Prior art date
Application number
PCT/JP2021/018401
Other languages
English (en)
Japanese (ja)
Inventor
宗一郎 檀浦
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 WO2021235345A1 publication Critical patent/WO2021235345A1/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
    • 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
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • 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
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • 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
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • 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
    • 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 a light guide body for a vehicle and a lamp for a vehicle.
  • a vehicle lamp equipped with a plurality of lamp units is known.
  • a vehicle lighting fixture arranged at the rear of the vehicle so as to straddle the vehicle side and the back door side has a first lighting fixture unit on the vehicle side and a second lighting fixture unit on the back door side (for example, Patent Document 1). reference).
  • the present invention has been made in view of the above, and an object of the present invention is to provide a light guide body for a vehicle and a lamp for a vehicle capable of suppressing the generation of light spots and the like.
  • the vehicle light guide according to the first aspect of the present invention has an incident surface that controls light from a light source to be incident, a first reflecting surface that reflects a part of the light in the first direction, and the light.
  • An incident side light guide portion having a second reflecting surface that partially reflects in a second direction different from the first direction, and the first reflecting surface branching from the incident side light guide portion in the first direction.
  • the light emitting portion on the emitting side having a first emitting surface for emitting the light reflected in the above to the front side, and the light emitting portion on the incident side branching in the second direction and reflected by the second reflecting surface.
  • a supply-side light guide having a second emission surface that supplies light to the external unit is provided, and the first reflection surface receives light from the emission-side light guide to the incident surface side or the emission-side light guide. It is provided so as to reflect toward the side.
  • first direction and the second direction may be opposite directions.
  • the first reflective surface may be provided in a range that covers the entire supply side light guide portion when the second direction is viewed from the emission side light guide portion side.
  • the incident side light guide portion may extend in one direction so as to form an acute angle with the exit side light guide portion.
  • the emission side light guide portion has an incident end surface capable of incident light from another light source at the end portion in the first direction, and the light from the emission side light guide portion is incident from the incident end surface. It may contain light.
  • the vehicle lamp according to the second aspect of the present invention is provided separately from the first lamp unit having the light source, the vehicle light guide, and the vehicle light guide. It includes a second lamp unit to which the light emitted from the second exit surface of the body is supplied.
  • FIG. 1 is a diagram showing an example of the rear part of the vehicle according to the present embodiment.
  • FIG. 2 is a diagram schematically showing an example of a vehicle lamp according to the present embodiment.
  • FIG. 3 is a diagram showing an example of operation by the first lamp unit.
  • FIG. 4 is a diagram showing an example of operation by the first lamp unit.
  • FIG. 1 is a diagram showing an example of the rear part of the vehicle 1 according to the present embodiment.
  • the vehicle 1 includes a vehicle body 2, a traveling device 3, and a vehicle lighting tool 100.
  • the vehicle body 2 has a driver's cab on which the driver is boarded.
  • the vehicle body 2 is supported by the traveling device 3.
  • the traveling device 3 has a wheel on which the tire 4 is mounted, a steering device for changing the traveling direction of the vehicle 1, and a braking device for decelerating or stopping the traveling device 3.
  • the vehicle 1 includes an entrance / exit door provided on the side of the vehicle body 2 and a back door 7 provided on the rear portion of the vehicle body 2.
  • the boarding / alighting door and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.
  • the vehicle 1 is placed on the ground parallel to the horizontal plane, and each part uses the terms front, rear, top, bottom, left, and right with the driver in the driver's cab as a reference. The positional relationship between the two will be described.
  • the front-rear, up-down, and left-right directions are the directions in which the vehicle lighting equipment is mounted on the vehicle, and indicate the directions when the traveling direction of the vehicle is viewed from the driver's seat.
  • the vertical direction is parallel to the vertical direction
  • the front-back direction and the left-right direction are parallel to the horizontal direction.
  • the vehicle lamp 100 is provided on the left side and the right side of the rear part of the vehicle body 2, respectively. In the present embodiment, the vehicle lamp 100 is provided at the rear of the vehicle body 2. Therefore, the rear side in the front-rear direction will be described as the front side of the vehicle lighting tool 100, and the front side in the front-rear direction will be described as the back side of the vehicle lighting tool 100.
  • the vehicle lamp 100 includes a functional lamp.
  • a tail lamp provided at the rear of the vehicle body 2 and lit in conjunction with the lighting of the headlamp
  • a stop lamp provided at the rear of the vehicle body 2 and lit in conjunction with the operation of the brake device
  • a stop lamp provided at the rear of the vehicle body 2 are provided. Examples thereof include a rear turn signal lamp that lights up to indicate the traveling direction of the vehicle 1 to the surroundings.
  • the vehicle lamp 100 is arranged so as to straddle the vehicle body 2 side and the back door 7 side, respectively.
  • the structure of the vehicle lighting fixture 100 provided on the left side of the rear portion of the vehicle body 2 and the structure of the vehicle lighting fixture 100 provided on the right side of the rear portion of the vehicle body 2 are symmetrical in the left-right direction and have substantially the same structure.
  • the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 will be simplified or omitted.
  • FIG. 2 is a diagram schematically showing an example of a vehicle lamp 100 according to the present embodiment.
  • the vehicle lamp 100 includes a first lamp unit 10 arranged on the vehicle body 2 side and a second lamp unit 20 arranged on the back door 7 side. The first lamp unit 10 and the second lamp unit 20 are separated.
  • the first lamp unit 10 has a housing 11, a first light source 12, a second light source 13, a vehicle light guide body 14, and an inner lens 15.
  • the housing 11 accommodates the first light source 12, the second light source 13, and the vehicle light guide body 14 in the lighting chamber.
  • the housing 11 may accommodate a plurality of types of functional lamps.
  • the first light source 12 and the second light source 13 are semiconductor type light sources such as LEDs.
  • the first light source 12 supplies light to both the first lamp unit 10 and the second lamp unit 20.
  • the second light source 13 supplies light to the first lamp unit 10 to supplement the amount of light of the first light source 12.
  • the first light source 12 and the second light source 13 have light emitting surfaces 12a and 13a that emit light, respectively.
  • the light emitting surfaces 12a and 13a are directed to the incident portions (incident surface 14a and incident end surface 14d, which will be described later) of the vehicle light guide body 14, respectively.
  • the vehicle light guide body 14 emits a part of the light from the first light source 12 and the second light source 13 toward the front side (rear).
  • the vehicle light guide body 14 supplies a part of the light from the first light source 12 to the second lamp unit 20.
  • the vehicle light guide body 14 includes an incident side light guide unit 14P, an exit side light guide unit 14Q, and a supply side light guide unit 14R.
  • the incident side light guide unit 14P has an incident surface 14a, a first reflecting surface 14b, and a second reflecting surface 14c.
  • the incident side light guide unit 14P is provided linearly from the incident surface 14a side to the first reflecting surface 14b and the second reflecting surface 14c side.
  • the incident side light guide portion 14P extends in one direction so as to form an acute angle with the first direction D1 in which the exit side light guide portion 14Q, which will be described later, extends.
  • the incident side light guide portion 14P extends along the front-rear direction.
  • the incident side light guide portion 14P is not limited to a shape extending linearly, and may have a shape at least partially curved.
  • the incident surface 14a is incident with light from the first light source 12.
  • the incident surface 14a controls the light from the first light source 12 so as to be parallel light.
  • the first reflecting surface 14b is controlled by the incident surface 14a to be parallel light and reflects a part of the incident light toward the first direction D1.
  • the second reflecting surface 14c is controlled by the incident surface 14a to be parallel light and reflects a part of the incident light toward the second direction D2.
  • first direction D1 and the second direction D2 are opposite directions.
  • the first direction D1 is a direction inclined forward in the front-rear direction toward the right side in the left-right direction.
  • the second direction D2 is a direction inclined backward in the front-rear direction toward the left side in the left-right direction.
  • the first direction D1 and the second direction D2 do not have to be opposite directions as long as they are different from each other.
  • the light emitting unit 14Q on the exit side branches from the light guide unit 14P on the incident side in the first direction D1.
  • the light emitting portion 14Q has a shape extending linearly from the first reflecting surface 14b in the first direction D1.
  • the light emitting portion 14Q on the emitting side is not limited to a shape extending linearly, and may have a shape at least partially curved.
  • the emission side light guide portion 14Q has an incident end surface 14d, a prism portion 14e, and a first emission surface 14f.
  • the incident end surface 14d is arranged at the tip end portion of the first direction D1.
  • the incident end surface 14d incidents the light from the second light source 13.
  • the incident end surface 14d has a planar shape orthogonal to or substantially orthogonal to the first direction D1.
  • the incident end surface 14d is not limited to a flat surface, but may be a curved surface.
  • the prism portion 14e reflects the light reflected by the first reflecting surface 14b and the light incident from the incident end surface 14d so as to diffuse to the front side (rear) in the vehicle-mounted state.
  • a plurality of prism portions 14e are provided along the first direction D1 on the rear side (front) portion of the outer peripheral surface of the light emitting side light guide portion 14Q in the vehicle mounted state.
  • the first emission surface 14f is arranged on the front side portion in the vehicle mounted state, and emits the light reflected by the prism portion 14e toward the front side.
  • the supply side light guide unit 14R branches from the incident side light guide unit 14P in the second direction D2.
  • the light guide unit 14R on the supply side has a shape extending linearly from the second reflecting surface 14c in the second direction D2.
  • the supply-side light guide portion 14R is not limited to a linearly extending shape, and may have at least a partially curved shape.
  • the supply side light guide unit 14R has a second emission surface 14g.
  • the second exit surface 14g is directed toward the second lamp unit 20 side.
  • the second emission surface 14g emits light that is reflected by the second reflection surface 14c and passes through the supply-side light guide unit 14R toward the second lamp unit 20.
  • the second exit surface 14g may be, for example, a flat surface or a curved surface capable of condensing light.
  • the first reflecting surface 14b is provided so as to reflect the light from the light emitting side light guide unit 14Q toward the incident surface 14a side or the light emitting side light guide unit 14Q side.
  • the first reflecting surface 14b is provided in a range that covers the entire supply side light guide unit 14R when the second direction D2 is viewed from the emission side light guide unit 14Q. Therefore, the light directed from the light emitting unit 14Q on the exit side to the light guide unit 14R on the supply side is reflected by the first reflecting surface 14b. Therefore, it is possible to prevent the light from the light emitting unit 14Q on the exit side from directly reaching the light guide unit 14R on the supply side.
  • the inner lens 15 is arranged on the front side (rear side) of the vehicle light guide body 14.
  • the inner lens 15 is, for example, plate-shaped and has an incident surface 15a directed toward the light guide body 14 for a vehicle and an exit surface 15b directed toward the rear of the vehicle.
  • a diffuser portion is formed on the entrance surface 15a or the emission surface 15b. Therefore, when the light emitted from the first emission surface 14f of the vehicle light guide body 14 reaches the incident surface 15a or the emission surface 15b, the light is incident or emitted in a state of being diffused by the diffusing portion.
  • the exit surface 15b of the inner lens 15 can be, for example, a flat surface.
  • the second lamp unit 20 has a housing 21 and a light guide body 22 for a vehicle.
  • the second lamp unit 20 may have an inner lens (not shown).
  • the housing 21 accommodates the vehicle light guide 22 in the lighting chamber.
  • the housing 21 may accommodate a plurality of types of functional lamps.
  • the second lamp unit 20 is supplied with light emitted from the second emission surface 14 g of the vehicle light guide body 14 of the first lamp unit 10.
  • the second lamp unit 20 guides the supplied light by the vehicle light guide body 22 and emits the light toward the front side (rear of the vehicle).
  • FIG. 3 and 4 are diagrams showing an example of operation by the first lamp unit 10.
  • FIG. 3 shows an operation when light is emitted from the first light source 12.
  • FIG. 4 shows an operation when light is emitted from the second light source 13.
  • the vehicle lamp 100 When a predetermined operation such as an operation of a direction indicator on the vehicle side or an operation of a hazard switch is performed by the driver, the vehicle lamp 100 emits light from the first light source 12 and the second light source 13 according to the operation. Is emitted.
  • a part of the light emitted from the first light source 12 (hereinafter referred to as light L1) is incident on the incident side light guide unit 14P in a state of being converted into parallel light by the incident surface 14a. ..
  • the light L1 is reflected by the first reflecting surface 14b in the first direction D1 and guided to the light emitting side light guide unit 14Q.
  • the light L1 is internally reflected on the back surface (front) by, for example, the first emission surface 14f, and then internally reflected on the front side (rear) by the prism portion 14e in the emission side light guide unit 14Q, and the first emission surface 14f. Is emitted from.
  • the light L1 emitted from the first emission surface 14f reaches the incident surface 15a of the inner lens 15 and is incident on the inner lens 15 in a state of being diffused by the diffusing portion of the incident surface 15a.
  • the light L1 incident on the inner lens 15 is emitted from the emission surface 15b to the rear of the vehicle.
  • light L2 another part of the light emitted from the first light source 12 (hereinafter referred to as light L2) is incident on the incident side light guide unit 14P in a state of being converted into parallel light on the incident surface 14a.
  • the light L2 is reflected in the second direction D2 by the second reflecting surface 14c, and is guided to the supply-side light guide unit 14R.
  • the light L2 is emitted from the second emission surface 14g toward the second lamp unit 20 in the light guide unit 14R on the supply side.
  • the light L2 incident on the second lamp unit 20 is emitted from the vehicle guide body 22 of the second lamp unit 20 to the rear of the vehicle.
  • light L3 another part of the light emitted from the first light source 12 (hereinafter referred to as light L3) is emitted from the first light source 12 and guided to the light emitting side light guide portion 14Q by the first reflecting surface 14b.
  • the light source unit 14Q on the exit side reflects on the inner surface and returns to the second direction D2.
  • the light L3a which is a part of the light L3, is reflected by the first reflecting surface 14b, for example, to the incident side light guide portion 14P side.
  • the light L3a guided to the incident side light guide unit 14P is emitted to the outside of the vehicle light guide body 14 from, for example, the incident surface 14a or the inner peripheral surface of the incident side light guide unit 14P, and is absorbed by the housing 11 or the like. ..
  • the light L3b which is a part of the light L3, is reflected by the first reflecting surface 14b, for example, to the light emitting portion 14Q side on the emitting side.
  • the light L3b guided to the light emitting side light guide unit 14Q is emitted from the first light emitting surface 14f after repeating internal reflection by, for example, the first light emitting surface 14f and the prism unit 14e in the light emitting side light guide unit 14Q. ..
  • the light L3b reaches the first reflecting surface 14b again after repeating internal reflection by, for example, the first emitting surface 14f and the prism portion 14e in the light emitting side light guide unit 14Q, and the light L3b reaches the incident side by the first reflecting surface 14b. It is reflected to the light guide unit 14P side or the emission side light guide unit 14Q side.
  • the light L3 (L3a, L3b) directed from the light emitting side light guide unit 14Q toward the first reflection surface 14b is the incident side light guide unit 14P on the first reflection surface 14b.
  • the light L3 does not reach the light guide unit 14R on the supply side.
  • a part of the light emitted from the second light source 13 (hereinafter referred to as light L4) is incident on the light emitting portion 14Q on the emitting side from the incident end surface 14d.
  • the light L4 is internally reflected on the back surface (front) by, for example, the first emission surface 14f, and then internally reflected on the front side (rear) by the prism portion 14e in the emission side light guide unit 14Q, and the first emission surface 14f. Is emitted from.
  • the light L1 emitted from the first emission surface 14f is emitted to the rear of the vehicle via the inner lens 15 in the same manner as the above-mentioned light L1.
  • light L5 another part of the light emitted from the second light source 13 enters the light emitting portion 14Q on the exit side from the incident end surface 14d and travels straight on the light guide unit 14Q on the exit side. It reaches the first reflecting surface 14b.
  • the light L5 that has reached the first reflecting surface 14b is reflected by the first reflecting surface 14b toward, for example, the incident side light guide portion 14P side.
  • the light L5 guided to the incident side light guide unit 14P is emitted to the outside of the vehicle light guide body 14 from, for example, the incident surface 14a or the inner peripheral surface of the incident side light guide unit 14P, and is absorbed by the housing 11 or the like. ..
  • light L6 another part of the light emitted from the second light source 13 (hereinafter referred to as light L6) is incident on the light emitting portion 14Q on the exit side from the incident end surface 14d, and is internally reflected by the light guide unit 14Q on the exit side. And proceed to the second direction D2.
  • the light L6a which is a part of the light L6, is reflected by the first reflecting surface 14b, for example, to the incident side light guide portion 14P side.
  • the light L6a guided to the incident side light guide unit 14P is emitted to the outside of the vehicle light guide body 14 from, for example, the incident surface 14a or the inner peripheral surface of the incident side light guide unit 14P, and is absorbed by the housing 11 or the like. ..
  • the light L6b which is a part of the light L6, is reflected by the first reflecting surface 14b, for example, to the light emitting side light guide portion 14Q side.
  • the light L6b guided to the light emitting side light guide unit 14Q is emitted from the first light emitting surface 14f after repeating internal reflection by, for example, the first light emitting surface 14f and the prism unit 14e in the light emitting side light guide unit 14Q. ..
  • the light L6b reaches the first reflecting surface 14b again after repeating internal reflection by, for example, the first emitting surface 14f and the prism portion 14e in the light emitting side light guide unit 14Q, and the light L6b reaches the incident side by the first reflecting surface 14b. It is reflected to the light guide unit 14P side or the emission side light guide unit 14Q side.
  • the lights L4, L5, and L6 emitted from the second light source 13, incident on the light emitting portion 14Q on the emitting side from the incident end surface 14d, and traveling in the second direction D2 are guided to the incident side on the first reflecting surface 14b. It is reflected by the light unit 14P or the light source unit 14Q on the exit side. Therefore, the light L4, L5, and L6 do not reach the supply side light guide unit 14R.
  • the vehicle light guide body 14 has the incident surface 14a that controls the light from the first light source 12 to be incident, and the first that reflects a part of the light in the first direction D1.
  • An incident side light guide unit 14P having a reflecting surface 14b and a second reflecting surface 14c that reflects a part of light in a second direction D2 different from the first direction D1, and a first direction from the incident side light guide unit 14P.
  • the emission side light guide unit 14Q having a first emission surface 14f that branches to D1 and emits the light reflected by the first reflection surface 14b to the front side, and the incident side light guide unit 14P branches in the second direction D2.
  • a supply-side light guide unit 14R having a second emission surface 14g that supplies the light reflected by the second reflection surface 14c to the second lamp unit 20 is provided, and the first reflection surface 14b is the emission-side light guide unit 14Q.
  • the light is provided so as to be reflected toward the incident surface 14a side or the emitting side light guide portion 14Q side.
  • the first reflecting surface 14b is provided so as to reflect the light from the light emitting side light guide unit 14Q toward the incident surface 14a side or the light emitting side light guide unit 14Q side, the light emitting side light guide is provided.
  • the light from the unit 14Q does not reach the light guide unit 14R on the supply side. As a result, it is possible to suppress the generation of light spots and the like.
  • the first direction D1 and the second direction D2 may be in opposite directions. In this configuration, it is avoided that the light traveling in the second direction D2 of the light emitting unit 14Q reaches the light guide unit 14R on the supply side. As a result, it is possible to suppress the generation of light spots and the like.
  • the first reflection surface 14b is provided in a range that covers the entire supply side light guide unit 14R when the second direction D2 is viewed from the emission side light guide unit 14Q side. May be done.
  • the light from the light emitting unit 14Q on the exit side can be reliably reflected toward the light guide unit 14P on the incident side and the light guide unit 14Q on the exit side by the first reflecting surface 14b.
  • the incident side light guide portion 14P may extend in one direction so as to form an acute angle with the exit side light guide portion 14Q. As a result, it is possible to more reliably prevent the light from the light emitting unit 14Q on the exit side from reaching the light guide unit 14R on the supply side.
  • the emission side light guide portion 14Q has an incident end surface 14d capable of incident light from another second light source 13 at the end portion of the first direction D1 and emits light.
  • the light from the side light guide unit 14Q may include the light incident from the incident end surface 14d.
  • the vehicle lamp 100 is provided separately from the first lamp unit 10 having the first light source 12, the vehicle light guide body 14, and the first lamp unit 10, and is for vehicles.
  • a second lamp unit 20 to which light emitted from the second emission surface 14g of the light guide body 14 is supplied is provided. According to this configuration, since the light guide body 14 for a vehicle capable of suppressing the generation of light spots and the like is provided, it is possible to provide a light fixture 100 for a vehicle having a good appearance.
  • the technical scope of the present invention is not limited to the above embodiment, and changes can be made as appropriate without departing from the spirit of the present invention.
  • the incident end surface 14d may be formed in a shape that performs predetermined control such as a shape that makes the light from the second light source 13 parallel light, a shape that diffuses the light, and the like.
  • the control by the incident end surface 14d may be the same as or different from the control by the incident surface 14a.
  • the configuration in which the incident side light guide portion 14P extends in one direction so as to form an acute angle with the exit side light guide portion 14Q has been described as an example, but the present invention is not limited thereto. .. There may be a right angle or an obtuse angle between the light guide portion 14P on the incident side and the light guide portion 14Q on the exit side.
  • the configuration in which the first reflecting surface 14b is provided in a range covering the entire supply side light guide unit 14R when the second direction D2 is viewed from the emission side light guide unit 14Q side is given as an example. However, it is not limited to this. If the configuration is such that light does not reach the supply side light guide unit 14R from the emission side light guide unit 14Q, the first reflection surface 14b is the supply side guide when the second direction D2 is viewed from the emission side light guide unit 14Q side. It may be configured to cover a part of the optical portion 14R.
  • first direction D1 and the second direction D2 are opposite directions
  • the first direction D1 and the second direction D2 may be different directions.

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

Abstract

La présente invention concerne un guide de lumière de véhicule et un phare de véhicule qui peuvent supprimer l'apparition de lumière ponctuelle et autres. Ce guide de lumière de véhicule (14) comprend : une partie de guidage de lumière côté incident (14P) qui a une surface incidente (14a) qui règle la lumière provenant d'une première source de lumière (12) de manière à ce qu'elle y soit incidente, une première surface de réflexion (14b) qui réfléchit une partie de la lumière dans une première direction (D1) et une seconde surface de réflexion (14c) qui réfléchit une partie de la lumière dans une seconde direction (D2) différente de la première direction (D1); une partie de guidage de lumière côté émission (14Q) qui se ramifie à partir de la partie de guidage de lumière côté incident (14P) dans la première direction (D1) et présente une première surface d'émission (14f) qui émet la lumière réfléchie par la première surface de réflexion (14b) vers un côté de surface avant; et une partie de guidage de lumière côté alimentation (14R) qui se ramifie à partir de la partie de guidage de lumière côté incident (14P) dans la seconde direction (D2) et présente une seconde surface d'émission (14g) qui fournit la lumière réfléchie par la seconde surface de réflexion (14c) à une seconde unité de phare (20) et la première surface de réflexion (14b) est disposée de façon à réfléchir la lumière provenant de la partie de guidage de lumière côté émission (14Q) vers un côté de surface incidente (14a) ou vers un côté de partie de guidage de lumière côté émission (14Q).
PCT/JP2021/018401 2020-05-18 2021-05-14 Guide de lumière de véhicule et phare de véhicule WO2021235345A1 (fr)

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JP2020-086895 2020-05-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023212585A1 (fr) * 2022-04-26 2023-11-02 Valeo Vision Guide de lumière bidirectionnel pour optique de véhicule

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023084995A (ja) * 2021-12-08 2023-06-20 スタンレー電気株式会社 車両用灯具
JP2024030597A (ja) * 2022-08-24 2024-03-07 スタンレー電気株式会社 車両用灯具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009110477A1 (fr) * 2008-03-03 2009-09-11 株式会社フジクラ Rétroviseur de porte
JP2016029606A (ja) * 2014-07-25 2016-03-03 スタンレー電気株式会社 車両用灯具
WO2018074242A1 (fr) * 2016-10-17 2018-04-26 株式会社小糸製作所 Accessoire à lampe pour véhicule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009110477A1 (fr) * 2008-03-03 2009-09-11 株式会社フジクラ Rétroviseur de porte
JP2016029606A (ja) * 2014-07-25 2016-03-03 スタンレー電気株式会社 車両用灯具
WO2018074242A1 (fr) * 2016-10-17 2018-04-26 株式会社小糸製作所 Accessoire à lampe pour véhicule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023212585A1 (fr) * 2022-04-26 2023-11-02 Valeo Vision Guide de lumière bidirectionnel pour optique de véhicule

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