CN115435295A - Light emitting device and vehicle lamp - Google Patents

Light emitting device and vehicle lamp Download PDF

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Publication number
CN115435295A
CN115435295A CN202110608337.0A CN202110608337A CN115435295A CN 115435295 A CN115435295 A CN 115435295A CN 202110608337 A CN202110608337 A CN 202110608337A CN 115435295 A CN115435295 A CN 115435295A
Authority
CN
China
Prior art keywords
light
emitting
reflection
curved
curved surface
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
CN202110608337.0A
Other languages
Chinese (zh)
Inventor
胡姜
高翔
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.)
Changzhou Xingyu Automotive Lighting Systems Co Ltd
Original Assignee
Changzhou Xingyu Automotive Lighting Systems 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 Changzhou Xingyu Automotive Lighting Systems Co Ltd filed Critical Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority to CN202110608337.0A priority Critical patent/CN115435295A/en
Publication of CN115435295A publication Critical patent/CN115435295A/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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating 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
    • 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)
  • Planar Illumination Modules (AREA)

Abstract

The invention provides a light-emitting device and a vehicle lamp, wherein the light-emitting device comprises: a support; the luminous piece is arranged on the bracket; the reflecting curved surface is arranged corresponding to the light-emitting piece so as to receive the light rays emitted by the light-emitting piece and reflect the received light rays emitted by the light-emitting piece; the decorative frame is arranged corresponding to the reflection side of the reflection curved surface so as to receive the reflection light rays emitted by the reflection curved surface and uniformly emit the reflection light rays. The invention can realize large-area uniform light emission without a light guide piece or a light guide assembly, and has simple structure, thereby reducing the product cost.

Description

Light emitting device and vehicle lamp
Technical Field
The invention relates to the technical field of illumination, in particular to a light-emitting device and a car lamp.
Background
At present, in order to realize large-area luminescence of the car lamp, a large-reflection cavity structure is generally adopted, a lamp hole is formed in the center of the structure, and a bulb is used as a light source, but the integrity of the reflection cavity structure is damaged in the mode; on the other hand, in terms of lighting effect, a dark circle is formed around the bulb hole, and the uniformity of the entire lamp is easily impaired.
With the development of vehicle lamp technology, more and more LED lighting units are applied to vehicle lamps, and the area light source is emerging. However, although the surface light source can be flexible in shape, it is relatively expensive, and in order to obtain uniform light in the largest area, at least one light guide member or light guide assembly is usually required to be designed, which also increases the cost of the whole lamp and the complexity of assembly.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, an object of the present invention is to provide a light emitting device, which can realize uniform light emission in a large area without a light guide member or a light guide component, and has a simple structure, thereby reducing the product cost.
A second object of the present invention is to provide a vehicle lamp.
In order to achieve the above object, a first embodiment of the present invention provides a light emitting device, including: a support; the luminous piece is arranged on the bracket; the reflecting curved surface is arranged corresponding to the light-emitting piece so as to receive the light rays emitted by the light-emitting piece and reflect the received light rays emitted by the light-emitting piece; the decorative frame is arranged corresponding to the reflection side of the reflection curved surface so as to receive the reflection light rays emitted by the reflection curved surface and uniformly emit the reflection light rays.
According to the light-emitting device provided by the embodiment of the invention, the support, the light-emitting piece, the reflecting curved surface and the decorative frame are arranged, wherein the reflecting curved surface is arranged corresponding to the light-emitting piece to receive the light emitted by the light-emitting piece and reflect the received light emitted by the light-emitting piece, and the decorative frame is arranged corresponding to the reflecting side of the reflecting curved surface to receive the reflected light emitted by the reflecting curved surface and uniformly emit the reflected light.
In addition, the light emitting device proposed according to the above embodiment of the present invention may also have the following additional technical features:
according to an embodiment of the present invention, the light emitting member includes a plurality of light emitting units and a light emitting unit substrate, wherein the light emitting unit substrate is disposed on the bracket, the plurality of light emitting units are disposed on the light emitting unit substrate, and light emitting ends of the plurality of light emitting units correspond to the reflective curved surface.
According to one embodiment of the invention, the reflecting curved surface is formed by sequentially and smoothly splicing a plurality of planes and/or curved surfaces, and the reflecting side of the reflecting curved surface is provided with dermatoglyph.
According to one embodiment of the invention, the reflecting curved surface performs lambertian reflection and gaussian reflection on the received light emitted by the luminous element.
According to an embodiment of the invention, the escutcheon includes a light-emitting surface and a non-light-emitting surface, wherein the light-emitting surface is disposed corresponding to the reflection side of the reflection curved surface to receive the reflection light emitted from the reflection curved surface and uniformly emit the reflection light.
According to one embodiment of the invention, the light-emitting surface is a plane or a curved surface, and the inner side and the outer side of the light-emitting surface are both provided with dermatoglyphs.
According to one embodiment of the invention, the inner side of the non-light-emitting surface is provided with dermatoglyphs, and the outer side of the non-light-emitting surface is provided with a metal layer.
According to one embodiment of the invention, the scaffold is a PC (Polycarbonate) white scaffold.
According to one embodiment of the invention, the decorative frame is made of colorless transparent materials.
In order to achieve the above object, a second aspect of the present invention provides a vehicle lamp, which includes the light emitting device of the first aspect.
According to the vehicle lamp provided by the embodiment of the invention, by adopting the light-emitting device provided by the embodiment of the invention, large-area uniform light emission can be realized without a light guide piece or a light guide assembly, and the vehicle lamp is simple in structure, so that the product cost can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a light-emitting device according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a light-emitting device according to an embodiment of the present invention;
FIG. 3 is a front view of a light emitting device according to one embodiment of the present invention;
fig. 4 is a schematic view illustrating a shape of a planar light emitting surface according to an embodiment of the invention;
fig. 5 is a schematic view illustrating a shape of a curved light emitting surface according to another embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a light-emitting device according to an embodiment of the invention.
As shown in fig. 1, the light emitting device according to the embodiment of the present invention includes a bracket 10, a light emitting element 20, a curved reflecting surface 30, and an escutcheon 40. Wherein, the light emitting member 20 can be disposed on the bracket 10; the reflective curved surface 30 may be disposed corresponding to the light emitting member 20 to receive the light emitted from the light emitting member 20 and reflect the received light emitted from the light emitting member 20; the escutcheon 40 can be disposed corresponding to the reflective side 301 of the reflective curved surface 30 to receive the reflected light from the reflective curved surface 30 and to emit the reflected light uniformly.
Specifically, as shown in fig. 1, the light emitted from the light emitting element 20 may enter the reflective curved surface 30, and then may be diffusely reflected in the reflective curved surface 30, and further may be reflected from the reflective side 301 of the reflective curved surface 30 to form a large area of uniform light, and finally may be emitted from the escutcheon 40, so that the large area of uniform light emission may be achieved without a light guide element or a light guide assembly, and the structure is simple, and the product cost may be reduced.
In one embodiment of the present invention, as shown in fig. 2, an opening b is further provided at one side of the support 10, and the light emitting member 20 is disposed on the support 10 at the position of the opening b, for example, can be directly mounted on the support 10 without a light guide member or a light guide assembly. Among them, the stent 10 may be a PC (Polycarbonate) white stent.
In an embodiment of the present invention, as shown in fig. 3, the light emitting member 20 may include a plurality of light emitting units 201 and a light emitting unit substrate 202, wherein the light emitting unit substrate 202 may be disposed on the support 10, the plurality of light emitting units 201 may be disposed on the light emitting unit substrate 202, and light emitting ends a of the plurality of light emitting units 201 may be disposed on the light emitting unit substrate 202 corresponding to the curved reflective surface 30, and specifically may be disposed on the curved reflective side 301 corresponding to the curved reflective surface 30. The light emitting unit 201 may be an LED light emitting unit, and the light emitting unit substrate 202 may be an LED circuit board.
In one embodiment of the present invention, as shown in fig. 2, the curved reflective surface 30 may be formed by sequentially and smoothly splicing a plurality of planes and/or curved surfaces, and a dermatoglyph may be further disposed on the reflective side 301 of the curved reflective surface 30. It should be further noted that the curved reflective surface 30 may be integrally formed, for example, by sequentially and smoothly joining two flat and/or curved surfaces. In addition, as shown in fig. 3, the curved reflecting surface 30 may be disposed on the bracket 10, and specifically, the curved reflecting surface 30 may be disposed on the bracket 10 by an integrated process, so that the curved reflecting surface 30 and the bracket 10 may be integrated into a whole, thereby ensuring the overall stability.
In an embodiment of the present invention, the curved reflecting surface 30 may be a smooth surface made of white material, so that the light emitted from the light emitting unit 201 can be reflected diffusely, specifically, lambertian reflection and gaussian reflection, so that a large area of uniform light can be refracted from the reflecting side 301.
In an embodiment of the invention, as shown in fig. 2, the escutcheon 40 may include a light emitting surface 401 and non-light emitting surfaces, such as a first non-light emitting surface 402 and a second non-light emitting surface 403. The light emitting surface 401 may be disposed corresponding to the reflection side 301 of the reflection curved surface 30 to receive the reflection light emitted from the reflection curved surface 30 and uniformly emit the reflection light.
Specifically, as shown in fig. 2, the escutcheon 40 may include at least one large-area light emitting surface 401, a first non-light emitting surface 402 and a second non-light emitting surface 403. The light emitting surface 401 may be a plane or a curved surface, such as the plane shown in fig. 3 or the curved surface shown in fig. 4, and both the inner side and the outer side of the light emitting surface 401 may be provided with dermatoglyphs; the inner sides of the first non-light-emitting surface 402 and the second non-light-emitting surface 403 may be provided with leather patterns, and the outer sides of the first non-light-emitting surface 402 and the second non-light-emitting surface 403 may be provided with metal layers, and the metal layers are opaque. The light reflected by the reflecting curved surface 30 can be further uniformly processed through the dermatoglyph arranged on the inner side and the outer side of the large-area light-emitting surface, so that the uniformity of the finally emitted light can be ensured.
In an embodiment of the invention, the decoration frame 40 may be a colorless and transparent decoration frame, and the light emitting surface with various shapes, such as the planar light emitting surface shown in fig. 4 or the curved light emitting surface shown in fig. 5, may be designed according to actual requirements.
According to the light-emitting device provided by the embodiment of the invention, the support, the light-emitting piece, the reflecting curved surface and the decorative frame are arranged, wherein the reflecting curved surface is arranged corresponding to the light-emitting piece to receive the light emitted by the light-emitting piece and reflect the received light emitted by the light-emitting piece, and the decorative frame is arranged corresponding to the reflecting side of the reflecting curved surface to receive the reflected light emitted by the reflecting curved surface and uniformly emit the reflected light.
Corresponding to the embodiment, the invention further provides a vehicle lamp.
The vehicle lamp provided by the embodiment of the invention comprises the light-emitting device provided by the embodiment, and the specific implementation mode of the vehicle lamp can refer to the embodiment.
According to the vehicle lamp provided by the embodiment of the invention, by adopting the light-emitting device provided by the embodiment of the invention, large-area uniform light emission can be realized without a light guide piece or a light guide assembly, the structure is simple, and the product cost can be reduced.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The meaning of "plurality" is two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Claims (10)

1. A light-emitting device, comprising:
a support;
the luminous piece is arranged on the bracket;
the reflecting curved surface is arranged corresponding to the light-emitting piece so as to receive the light emitted by the light-emitting piece and reflect the received light emitted by the light-emitting piece;
the decorative frame is arranged corresponding to the reflection side of the reflection curved surface so as to receive the reflection light rays emitted by the reflection curved surface and uniformly emit the reflection light rays.
2. The light-emitting device according to claim 1, wherein the light-emitting member includes a plurality of light-emitting units and a light-emitting unit substrate, wherein the light-emitting unit substrate is disposed on the support, the plurality of light-emitting units are disposed on the light-emitting unit substrate, and light-emitting ends of the plurality of light-emitting units correspond to the curved reflective surface.
3. The light-emitting device according to claim 2, wherein the curved reflective surface is formed by sequentially and smoothly splicing a plurality of flat and/or curved surfaces, and a reflective side of the curved reflective surface is provided with a dermatoglyph.
4. The illumination device as recited in claim 3 wherein the curved reflective surface reflects light received from the illuminator in a lambertian and gaussian manner.
5. The light-emitting device according to claim 4, wherein the escutcheon includes a light-emitting surface and a non-light-emitting surface, wherein the light-emitting surface is disposed corresponding to the reflection side of the reflection curved surface to receive the reflected light from the reflection curved surface and uniformly emit the reflected light.
6. The light-emitting device according to claim 5, wherein the light-emitting surface is a plane or a curved surface, and the inner side and the outer side of the light-emitting surface are both provided with dermatoglyphs.
7. The device as claimed in claim 6, wherein the non-light-emitting surface has a skin pattern on the inner side thereof, and a metal layer on the outer side thereof.
8. The lighting device of claim 1, wherein the support is a PC white support.
9. The lighting device as claimed in claim 1, wherein the decorative frame is made of a colorless transparent material.
10. A vehicular lamp characterized by comprising the light-emitting device according to any one of claims 1 to 9.
CN202110608337.0A 2021-06-01 2021-06-01 Light emitting device and vehicle lamp Pending CN115435295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110608337.0A CN115435295A (en) 2021-06-01 2021-06-01 Light emitting device and vehicle lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110608337.0A CN115435295A (en) 2021-06-01 2021-06-01 Light emitting device and vehicle lamp

Publications (1)

Publication Number Publication Date
CN115435295A true CN115435295A (en) 2022-12-06

Family

ID=84272278

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110608337.0A Pending CN115435295A (en) 2021-06-01 2021-06-01 Light emitting device and vehicle lamp

Country Status (1)

Country Link
CN (1) CN115435295A (en)

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