CN111288414A - Optical system for car lamp and car lamp - Google Patents

Optical system for car lamp and car lamp Download PDF

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Publication number
CN111288414A
CN111288414A CN202010198362.1A CN202010198362A CN111288414A CN 111288414 A CN111288414 A CN 111288414A CN 202010198362 A CN202010198362 A CN 202010198362A CN 111288414 A CN111288414 A CN 111288414A
Authority
CN
China
Prior art keywords
light
fresnel lens
lens array
light guide
thick
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010198362.1A
Other languages
Chinese (zh)
Inventor
沈英威
张旭
许立国
张利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changchun Hella Automotive Lighting Co Ltd
Original Assignee
Changchun Hella Automotive Lighting Co Ltd
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 Changchun Hella Automotive Lighting Co Ltd filed Critical Changchun Hella Automotive Lighting Co Ltd
Priority to CN202010198362.1A priority Critical patent/CN111288414A/en
Publication of CN111288414A publication Critical patent/CN111288414A/en
Pending legal-status Critical Current

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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
    • F21S43/20—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
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—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 comprising at least two indicating lamps
    • 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
    • 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
    • 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
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • 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
    • 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
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • 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
    • F21W2103/10—Position 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
    • F21W2103/15—Side marker 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
    • F21W2103/20—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
    • F21W2103/45—Reversing 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
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • 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]

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

Abstract

The present invention provides an optical system for a vehicle lamp and a vehicle lamp, the optical system including: a light source; the Fresnel lens array comprises a plurality of Fresnel lens units and is used for converting light rays emitted by the light source into parallel refraction light rays; the Fresnel lens array comprises a Fresnel lens array, a thick-wall light guide light filtering mask, wherein one surface of the thick-wall light guide light filtering mask, facing the Fresnel lens array, is a light inlet surface, one surface of the thick-wall light guide light filtering mask, far away from the Fresnel lens array, is provided with a light outlet part, the light inlet surface of the thick-wall light guide light filtering mask and the light outlet surface of the light outlet part are both provided with optical patterns, and the thick-wall light guide light filtering mask folds/scatters light passing through the Fresnel lens to further homogenize. After the technical scheme is adopted, the light-emitting efficiency and the light-emitting uniformity are improved.

Description

Optical system for car lamp and car lamp
Technical Field
The invention relates to the technical field of vehicle lamps, in particular to an optical system for a vehicle lamp and the vehicle lamp.
Background
In the field of automotive lighting, light sources including LED light sources are often used, placed in various automotive light fixtures including tail lights. In the prior art, for an optical system in a car lamp, light emitted by an LED light source is generally directly guided to be emitted out through a single rear wall light, which generally has the technical problem of uneven light emission; and when the optical axis direction of car light was observed, the LED light source was directly seen easily to the light source direct projection, had the technical defect of LED bright spot promptly, and user experience is not good.
Therefore, it is required to develop an optical system having uniform light emission and no LED bright point, and a vehicle lamp having the same.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide an optical system which has uniform light emitting and no LED bright point, and a vehicle lamp with the optical system.
The invention discloses an optical system for a vehicle lamp, comprising:
a light source;
the Fresnel lens array comprises a plurality of Fresnel lens units and is used for converting light rays emitted by the light source into parallel refraction light rays;
the Fresnel lens array comprises a Fresnel lens array, a thick-wall light guide light filtering mask, wherein one surface of the thick-wall light guide light filtering mask, facing the Fresnel lens array, is a light inlet surface, one surface of the thick-wall light guide light filtering mask, far away from the Fresnel lens array, is provided with a light outlet part, the light inlet surface of the thick-wall light guide light filtering mask and the light outlet surface of the light outlet part are both provided with optical patterns, and the thick-wall light guide light filtering mask folds/scatters light passing through the Fresnel lens to further homogenize.
Preferably, the light-emitting portion includes a first protruding portion and a second protruding portion, and a groove portion is provided between the first protruding portion and the second protruding portion, and the groove portion is used for assembling the first light-tight frame portion.
Preferably, a clamping portion is arranged on the first lining frame portion, a buckling hole is arranged in the groove portion, and the clamping portion and the buckling hole form a buckling connection, so that the first lining frame portion is fixedly assembled on the thick-wall light guide filter surface cover.
Preferably, the light-emitting portion is provided in plurality, and is arranged in an array on a surface of the thick-walled light-guiding filter mask away from the fresnel lens array.
The invention also discloses a car lamp, which comprises a shell and an outer mask, wherein the shell and the outer mask are fixedly connected to form an accommodating space;
the first PCB comprises a first light source;
the lens part comprises a first Fresnel lens array corresponding to the first light source;
a first hollow area is arranged on the support corresponding to the first Fresnel lens array;
a light-emitting part in the optical system is arranged in a first light-emitting area corresponding to the first hollow area on one surface, far away from the first Fresnel lens array, of the thick-wall light guide light filtering mask, and optical patterns for folding/scattering light rays are arranged on the light-entering surface of the thick-wall light guide light filtering mask and the light-emitting surface of the light-emitting part in the first light-emitting area;
the first light source emits light which is emitted out through the first Fresnel lens array and the light-emitting portion in the first light-emitting area, and therefore the first signal function is achieved.
Preferably, the first PCB further comprises a second light source;
the lens part also comprises a second Fresnel lens array corresponding to the second light source, the light incident surface of the second Fresnel lens array is provided with Fresnel patterns, and the light emergent surface of the second Fresnel lens array is provided with collector-type patterns;
a second hollow-out area is arranged on the support corresponding to the second Fresnel lens array;
a light transmitting area is arranged at the position, corresponding to the second hollow area, of the thick-wall light guide and filter mask;
and light rays emitted by the second light source are emitted outwards through the second Fresnel lens array and the light-transmitting area, so that a second signal function is realized.
Preferably, the first PCB further comprises a third light source;
the lens part also comprises a third Fresnel lens array corresponding to the third light source;
a third hollow-out area is arranged on the support corresponding to the third Fresnel lens array;
a light outlet part in the optical system according to any one of claims 1 to 4 is arranged in a second light outlet region corresponding to the third hollowed-out region on one surface of the thick-wall light guide and filter mask, which is far away from the third fresnel lens array, and optical patterns for refracting/scattering light rays are arranged on the light inlet surface of the thick-wall light guide and filter mask and the light outlet surface of the light outlet part in the second light outlet region;
and light rays emitted by the third light source are emitted outwards through the third Fresnel lens array and the light-emitting part in the second light-emitting area, so that a third signal function is realized.
Preferably, the first signal function is a brake light function, the second signal function is a backup light function, and the third signal function is a turn light function.
Preferably, light guide mounting grooves are formed in the bracket at the outer sides of the first hollow area and the third hollow area, and the light guide mounting grooves are in a C shape and respectively surround the first hollow area and the third hollow area;
a position lamp light-transmitting area is arranged on the thick-wall light guide filtering surface cover corresponding to the light guide mounting groove;
the car light still include the position lamp light guide with fixed set up in the second PCB of position lamp light guide tip, the position lamp light guide install in the light guide mounting groove, the light that position lamp LED sent on the second PCB outwards goes out through position lamp light guide, position lamp light-transmitting area, realizes the position lamp function.
Preferably, the vehicle lamp comprises a second opaque frame portion, the second opaque frame portion is clamped with the thick-wall light guide and filter mask, and a light transmission hole is formed in the second opaque frame portion;
and a side marker lamp LED is arranged on the second PCB, and light rays emitted by the side marker lamp LED are emitted outwards through the light transmitting hole to realize the function of the side marker lamp.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. through the primary refraction of the Fresnel lens array and the secondary refraction/scattering of the thick-wall light guide filtering mask, multi-directional light rays diffused by the light source are changed in light path, uniform transmission light is formed, and bright spots caused by LEDs are prevented.
2. The car light is compact in structure, and can realize various car light functions in a limited car light space under the condition of meeting the light emission requirements of laws and regulations.
Drawings
FIG. 1 is a schematic structural diagram of a vehicular lamp according to an embodiment of the present invention;
FIG. 2 is an exploded view of the vehicular lamp of FIG. 1, with some parts not shown in the exploded view;
FIG. 3 is a schematic view of an optical system of the vehicle lamp of FIG. 1;
fig. 4 is a schematic front view of the first liner frame part after being mounted to the light emergent part;
fig. 5 is a schematic view of a back structure of the first liner frame portion after being mounted to the light emergent portion;
fig. 6 is a schematic structural view of the second liner frame part after being mounted to the light transmission region;
FIG. 7 is a schematic view of another optical system of the vehicle lamp of FIG. 1;
FIG. 8 is a schematic view of the second Fresnel lens shown in FIG. 7;
fig. 9 is a schematic structural view of a light emitting surface side of the second fresnel lens in fig. 7;
FIG. 10 is a schematic front view of a first light guide;
FIG. 11 is a schematic diagram of a back side structure of a first light guide.
Reference numerals:
100-housing, 200-outer cover, 300-first PCB, 310-first light source, 320-second light source, 330-third light source, 400-lens portion, 410-first fresnel lens array, 420-second fresnel lens array, 421-fresnel pattern, 422-collector pattern, 430-third fresnel lens array, 500-support, 510-first hollowed-out area, 520-second hollowed-out area, 530-third hollowed-out area, 540-first light guide installation groove, 550-second light guide installation groove, 600-thick wall light guide filter cover, 610-light emitting portion, 611-first bulge portion, 612-second bulge portion, 613-groove portion, 6131-buckling hole, 620-light transmitting area, 710, 720-first lining frame portion, 711-clip part, 730-second frame part, 731-light hole, 810-first position light guide, 811, 812-strip light guide, 813, 814-mounting part, 815-dentate pattern, 820-second PCB, 830-second position light guide, 840-third PCB.
Detailed Description
The advantages of the invention are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Referring to fig. 1 to 9, the present embodiment provides a vehicle lamp, which includes a housing 100 and an outer cover 200, wherein the housing 100 and the outer cover 200 are fixedly connected to form a receiving space, preferably, by ultrasonic welding. The accommodating space is internally provided with a first PCB300, a lens part 400, a bracket 500 and a thick-wall light guide and filter mask 600 which are fixedly connected.
Referring to fig. 1 to 5, the first PCB300 includes a first light source 310, and the first light source 310 includes a plurality of LED lamp beads. The lens portion 400 includes a first fresnel lens array 410 corresponding to the first light source 310, and the first fresnel lens array 410 includes a plurality of fresnel lens units corresponding to the LED lamp beads for converting the light emitted from the light source into parallel refracted light. A first hollow-out area 510 is arranged on the support 500 at a position corresponding to the first fresnel lens array 410; one surface of the thick-wall light guide and filtering mask 600, which is far away from the first fresnel lens array 410, is provided with a light emitting portion 610 in a first light emitting area corresponding to the first hollowed-out area 510, optical patterns for folding/scattering light rays are arranged on the light incident surface of the thick-wall light guide and filtering mask 600 and the light emitting surface of the light emitting portion 610 in the first light emitting area, and the thick-wall light guide and filtering mask 600 folds/scatters the light rays passing through the fresnel lenses so as to further homogenize the light rays. The first light source 310, the first fresnel lens array 410 and the thick-walled light guide filtering mask 600 (including the light emitting part 610 thereon) form an optical system, the first light source 310 emits light, the light is subjected to primary refraction filtering through the fresnel lens to form parallel refraction light, and then subjected to secondary refraction through the thick-walled light guide to form more uniform light, and the light is emitted outwards through the transparent outer mask 200 to realize a first signal function. In this embodiment, the first signaling function is a brake light function. In this embodiment the light-emitting portion 610 is provided with a plurality of in the first light-emitting area array arrange, form the fence formula molding, except in the first light-emitting area other regions except light-emitting portion 610 are light-transmitting only, realize lighting, and its luminance is far less than the light-emitting luminance of light-emitting portion 610, through the contrast between light and shade between them, can realize the molding effect of car light better, improves the degree of discerning of car light. The vehicle lamp further includes a first frame portion 710, the light emitting portion 610 includes a first protruding portion and a second protruding portion, a groove portion 613 is provided between the first protruding portion and the second protruding portion, and the groove portion 613 is used for assembling the first frame portion 710 which is not light-tight. Specifically, the first frame lining portion 710 is provided with a clamping portion 711, the groove portion 613 is provided with a fastening hole 6131, and the clamping portion 711 and the fastening hole 6131 form a fastening connection, so that the first frame lining portion is fixedly assembled on the thick-wall light guide filter mask 600. With such a structure, the first frame portion is mounted in a reasonable manner by using a limited invisible space, and the light emitting portion 610 is divided into two sections, so that the divided light emitting portion 610 can achieve a profound visual effect. In the present embodiment, it is preferred that,
referring to fig. 1-2 and 6-9, the first PCB300 further includes a second light source 320, the second light source 320 is disposed on the first PCB300 below the first light source 310, and the second light source 320 includes a plurality of LED beads. The lens portion 400 further includes a second fresnel lens array 420 corresponding to the second light source 320, a light incident surface of the second fresnel lens array 420 is provided with a fresnel pattern 421, and a light emergent surface of the second fresnel lens array 420 is provided with a collector pattern 422, that is, a tooth-shaped optical pattern with step-like offset. A second hollow-out region 520 is arranged on the support 500 at a position corresponding to the second fresnel lens array 420; the thick-walled light guide filter mask 600 is provided with a light transmitting region 620 at a position corresponding to the second hollow region 520. The second light source 320, the second fresnel lens array 420 and the thick-walled light guide filtering mask 600 form another optical system, and light emitted by the second light source 320 is emitted outwards through the second fresnel lens array 420, the light-transmitting region 620 and the transparent outer mask 200, so that a second signal function is realized. In this embodiment, the second signal function is a backup light function. The vehicle lamp further comprises a second frame portion 730, the second frame portion 730 is fixedly connected to the light transmitting area 620 on the thick-wall light filtering mask, preferably, the second frame portion 730 is connected through a buckle structure, the light emitted from the light transmitting area 620 is divided into an upper light transmitting area and a lower light transmitting area by the second frame portion 730, a shape like the Chinese character ═ is realized, and the shape effect and the identification degree of the vehicle lamp are improved.
The first PCB300 further includes a third light source 330, the third light source 330 is disposed below the second light source 320 on the first PCB300, and the third light source 330 includes a plurality of LED lamp beads. The lens part 400 further includes a third fresnel lens array 430 corresponding to the third light source 330; a third hollow-out region 530 is arranged on the support 500 at a position corresponding to the third fresnel lens array 430; a light emitting portion 610 is disposed in a second light emitting area corresponding to the third hollow-out area 530 on a surface of the thick-wall light guide light filter mask 600 away from the third fresnel lens array 430, and optical patterns for refracting/scattering light rays are disposed on the light incident surface of the thick-wall light guide light filter mask 600 and the light emitting surface of the light emitting portion 610 in the second light emitting area. The third light source 330, the third fresnel lens array 430 and the thick-walled light guide filtering mask 600 (including the light-emitting portion 610 thereon) form an optical system, and light emitted by the third light source 330 is emitted outwards through the third fresnel lens array 430, the light-emitting portion 610 in the second light-emitting area and the transparent outer mask 200, so as to realize a third signal function. In this embodiment, the third signal function is a turn signal function. The arrangement of the second light-emitting region and the light-emitting portion on the third light source 330, the third fresnel lens array 430 and the thick-wall light-guiding filter mask 600 is substantially the same as the arrangement of the first light-emitting region and the light-emitting portion 610 on the first light source 310, the first fresnel lens array 410 and the thick-wall light-guiding filter mask 600, and will not be described in detail here. According to the optical system, the setting of the optical patterns can be flexibly adjusted by a person skilled in the art according to different legal light requirements of signal functions required to be realized. In some embodiments, corresponding colors or optical patterns may be configured for the corresponding light emitting areas on the outer mask 200, so as to better implement the corresponding signal function.
Referring to fig. 1, 2, 10 and 11, in the present embodiment, a first light guide installation groove 510 is disposed on the bracket 500 outside the first hollow area 510, a second light guide installation groove 550 is disposed outside the third hollow area 530, and the first light guide installation groove 510 and the second light guide installation groove 550 respectively surround the first hollow area 510 and the third hollow area 530 in a C shape. The thick-walled light guide filtering mask 600 is provided with a position lamp light-transmitting area corresponding to the light guide mounting groove. The car light also includes first position lamp light guide 810, fixed set up in second PCB820, second position lamp light guide 830, fixed set up in the first position lamp light guide 810 tip, fixed set up in the third PCB840 of second position lamp light guide 830 tip, the position lamp light guide is installed in the light guide mounting groove that corresponds, and the light that LED lamp pearl sent on second PCB820 and the third PCB840 passes through position lamp light guide, position lamp light transmission area and transparent outer mask 200 and outwards exits, is two "C" shapes, realizes the position lamp function. The first position light guide 810 comprises two strip light guides 811 and 812, wherein the rear parts of the strip light guides 811 and 812 are provided with a tooth-shaped pattern 815 which is continuous along the light guide color direction, and the tooth-shaped pattern 815 is used for realizing total reflection of light rays in the length range of the light guide strips, so that the light can be uniformly transmitted and lightened in the length range of the whole light guide strips. The strip light guides 811 and 812 have mounting portions 813 and 814 respectively at ends thereof, the mounting portions 813 and 814 are positioned by positioning posts and fixedly connected to the second PCB820 by screws, and the strip light guides 811 and 812 share the second PCB 820. The mounting portions 813 and 814 are shielded by opaque members, so that the structure of the connection portion of the strip-shaped light guides 811 and 812 is prevented from being seen from the outside of the vehicle lamp. The structure is very compact, one-time positioning of the light source and the light guide system is realized, and indirect errors in the assembling process are reduced. The arrangement of the second position light guide 830 and the third PCB840 is similar to the first position light guide 810 and the first PCB300 and will not be described in detail herein.
Further, a side marker light LED is further disposed on the second PCB820, referring to fig. 6, a light-transmitting hole 731 is disposed on the second frame portion 730, and light emitted by the side marker light LED is emitted outwards through the light-transmitting hole 731 and the corresponding light-transmitting region 620 on the outer cover 200, so as to implement the function of the side marker light.
With the assembly of the vehicle lamp of the present embodiment, the first PCB300 is mounted on the rear side of the lens portion 400 by screws, the assembly formed by the first PCB300 and the lens portion 400 is fixed to the bracket 500 by screws, the position light guide is fixedly mounted in the light guide mounting groove of the bracket 500 by clipping and screws, and the first and second frame portions 730 are clipped to the thick-walled light guide filter cover 600. The sub-assembly body formed by the above assembly is fixedly coupled to the case 100 by screws, and the case 100 and the external mask 200 are fixedly coupled by ultrasonic welding, and the sub-assembly body is accommodated therein.
The car light compact structure of this embodiment can realize multiple car light function in comparatively limited car light space under the condition that satisfies the law light-emitting requirement, and each function lamp light-emitting is even, and optical effect is good, and the molding discernment degree is high.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.

Claims (10)

1. An optical system for a vehicle lamp, comprising:
a light source;
the Fresnel lens array comprises a plurality of Fresnel lens units and is used for converting light rays emitted by the light source into parallel refraction light rays;
the Fresnel lens array comprises a Fresnel lens array, a thick-wall light guide light filtering mask, wherein one surface of the thick-wall light guide light filtering mask, facing the Fresnel lens array, is a light inlet surface, one surface of the thick-wall light guide light filtering mask, far away from the Fresnel lens array, is provided with a light outlet part, the light inlet surface of the thick-wall light guide light filtering mask and the light outlet surface of the light outlet part are both provided with optical patterns, and the thick-wall light guide light filtering mask folds/scatters light passing through the Fresnel lens to further homogenize.
2. The optical system of claim 1,
the light emitting part comprises a first protruding part and a second protruding part, a groove part is arranged between the first protruding part and the second protruding part, and the groove part is used for assembling a first light-tight substrate part.
3. The optical system of claim 2,
the first lining frame portion is provided with a clamping portion, buckling holes are formed in the groove portion, the clamping portion is connected with the buckling holes in a buckling mode, and the first lining frame portion is fixedly assembled on the thick-wall light guide filtering surface cover.
4. The optical system according to any one of claims 1 to 3,
the light-emitting parts are arranged in a plurality of ways, and the thick-wall light guide light filtering mask is arranged on one surface far away from the Fresnel lens array in an array mode.
5. A car light comprises a shell and an outer mask, wherein the shell and the outer mask are fixedly connected to form an accommodating space;
the first PCB comprises a first light source;
the lens part comprises a first Fresnel lens array corresponding to the first light source;
a first hollow area is arranged on the support corresponding to the first Fresnel lens array;
a light outlet part in the optical system according to any one of claims 1 to 4 is arranged in a first light outlet region corresponding to the first hollowed-out region on one surface of the thick-wall light guide and filter mask, which is far away from the first fresnel lens array, and optical patterns for refracting/scattering light rays are arranged on the light inlet surface of the thick-wall light guide and filter mask and the light outlet surface of the light outlet part in the first light outlet region;
the first light source emits light which is emitted out through the first Fresnel lens array and the light-emitting portion in the first light-emitting area, and therefore the first signal function is achieved.
6. The vehicular lamp according to claim 5,
the first PCB further comprises a second light source;
the lens part also comprises a second Fresnel lens array corresponding to the second light source, the light incident surface of the second Fresnel lens array is provided with Fresnel patterns, and the light emergent surface of the second Fresnel lens array is provided with collector-type patterns;
a second hollow-out area is arranged on the support corresponding to the second Fresnel lens array;
a light transmitting area is arranged at the position, corresponding to the second hollow area, of the thick-wall light guide and filter mask;
and light rays emitted by the second light source are emitted outwards through the second Fresnel lens array and the light-transmitting area, so that a second signal function is realized.
7. The vehicular lamp according to claim 6,
the first PCB further comprises a third light source;
the lens part also comprises a third Fresnel lens array corresponding to the third light source;
a third hollow-out area is arranged on the support corresponding to the third Fresnel lens array;
a light outlet part in the optical system according to any one of claims 1 to 4 is arranged in a second light outlet region corresponding to the third hollowed-out region on one surface of the thick-wall light guide and filter mask, which is far away from the third fresnel lens array, and optical patterns for refracting/scattering light rays are arranged on the light inlet surface of the thick-wall light guide and filter mask and the light outlet surface of the light outlet part in the second light outlet region;
and light rays emitted by the third light source are emitted outwards through the third Fresnel lens array and the light-emitting part in the second light-emitting area, so that a third signal function is realized.
8. The vehicular lamp according to claim 7,
the first signal function is a brake light function, the second signal function is a backup light function, and the third signal function is a turn light function.
9. The vehicular lamp according to claim 7,
light guide mounting grooves are formed in the outer sides of the first hollow area and the third hollow area on the support, and the light guide mounting grooves are C-shaped and respectively surround the first hollow area and the third hollow area;
a position lamp light-transmitting area is arranged on the thick-wall light guide filtering surface cover corresponding to the light guide mounting groove;
the car light still include the position lamp light guide with fixed set up in the second PCB of position lamp light guide tip, the position lamp light guide install in the light guide mounting groove, the light that position lamp LED sent on the second PCB outwards goes out through position lamp light guide, position lamp light-transmitting area, realizes the position lamp function.
10. The vehicular lamp according to claim 9,
the vehicle lamp comprises a second opaque frame part, the second opaque frame part is clamped with the thick-wall light guide light filtering mask, and a light hole is formed in the second opaque frame part;
and a side marker lamp LED is arranged on the second PCB, and light rays emitted by the side marker lamp LED are emitted outwards through the light transmitting hole to realize the function of the side marker lamp.
CN202010198362.1A 2020-03-19 2020-03-19 Optical system for car lamp and car lamp Pending CN111288414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010198362.1A CN111288414A (en) 2020-03-19 2020-03-19 Optical system for car lamp and car lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
CN111288414A true CN111288414A (en) 2020-06-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112066339A (en) * 2020-09-17 2020-12-11 浙江金业汽车部件有限公司 Multi-signal function display method of signal lamp and multi-signal function signal lamp
CN113188099A (en) * 2021-04-30 2021-07-30 重庆长安汽车股份有限公司 Through type back light

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109990251A (en) * 2017-12-29 2019-07-09 法雷奥照明湖北技术中心有限公司 Illumination or signal indicating device and motor vehicles
CN210069733U (en) * 2019-06-14 2020-02-14 嘉兴海拉灯具有限公司 Optical system for car lamp and tail lamp
CN211780839U (en) * 2020-03-19 2020-10-27 长春海拉车灯有限公司 Optical system for car lamp and car lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109990251A (en) * 2017-12-29 2019-07-09 法雷奥照明湖北技术中心有限公司 Illumination or signal indicating device and motor vehicles
CN210069733U (en) * 2019-06-14 2020-02-14 嘉兴海拉灯具有限公司 Optical system for car lamp and tail lamp
CN211780839U (en) * 2020-03-19 2020-10-27 长春海拉车灯有限公司 Optical system for car lamp and car lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112066339A (en) * 2020-09-17 2020-12-11 浙江金业汽车部件有限公司 Multi-signal function display method of signal lamp and multi-signal function signal lamp
CN112066339B (en) * 2020-09-17 2022-10-11 浙江金业汽车部件有限公司 Multi-signal function display method of signal lamp and multi-signal function signal lamp
CN113188099A (en) * 2021-04-30 2021-07-30 重庆长安汽车股份有限公司 Through type back light
CN113188099B (en) * 2021-04-30 2023-01-06 重庆长安汽车股份有限公司 Through type tail lamp

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