CN207815220U - A kind of LED total reflection lens, LED light guides and automobile lamp - Google Patents
A kind of LED total reflection lens, LED light guides and automobile lamp Download PDFInfo
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- CN207815220U CN207815220U CN201721392946.2U CN201721392946U CN207815220U CN 207815220 U CN207815220 U CN 207815220U CN 201721392946 U CN201721392946 U CN 201721392946U CN 207815220 U CN207815220 U CN 207815220U
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Abstract
The utility model is related to a kind of LED total reflection lens, LED light guides and automobile lamp, total reflection lens are integral type polyhedral structure, agent structure is a cuboid, equipped with incidence surface, light-emitting surface, taper fully reflecting surface, combine fully reflecting surface, the fully reflecting surface and air-lens of chamfering, air-lens are integral type, structure up and down, air-lens are divided into two planes of refraction up and down, the lower plane of refraction is curved surface or plane, it is plane or curved surface in the middle part of upper plane of refraction, the both sides of upper plane of refraction are the dentalation for being uniformly distributed on both sides of the middle, the dentalation is total reflection tooth, the flank of tooth for being totally reflected tooth is fully reflecting surface.The utility model is collected reallocation to light, can realize uniform improvement of visual effect by the variation of different sides type, capacity usage ratio is high, and LED light source is few using number, the uniformity for solving distribution of the existing light guide to light is poor, and the problem that capacity usage ratio is low.
Description
Technical field
The utility model is related to LED car lamp technical fields, and in particular to a kind of LED total reflection lens, LED light guides and vapour
Vehicle car light.
Background technology
LED life is long, low energy consumption and production technology process is increasingly ripe, can mass produce supply, is shone at present in automobile
It is widely used in bright and decoration, highway lighting, projector and indoor and outdoor lighting decoration.Due to the hair of most of routine LED
Light characteristic is symmetrical Lambertian radiation, cannot meet the optical requirement of various occasions.In order to meet the light efficiency and light distribution of various occasions
It is required that improving the performance of system, need to carry out LED the secondary optical design for being accurately controlled light distribution, it is rational to distribute
The luminous energy that LED chip is sent out.
It is general to carry out light distribution using the reflectors such as reflecting surface or reflector of aluminizing to LED secondary optical designs, by anti-
Emitter cannot effectively and uniformly distribute luminous energy, and the light intensity of LED light axis direction is big, and surrounding light intensity continuously decreases.Automobile signal light,
Illuminator and ornament lamp, it is desirable that can realize uniformly light-emitting, while to meet certain light distribution requirements.Linear effect is realized at present
The scheme of fruit has：
Light guide linear light sorurce, LED light source is located at one end of photoconductive tube, after light enters photoconductive tube, is passed in inner full-reflection
The other end until light guide is broadcast, in order to obtain linear illumination effect, adds light guide tooth or micro-structure at the back side of light guide light-emitting surface
Equal optical textures, the effect of linear light sorurce is realized by total reflection.The efficiency of light energy utilization of the light guide scheme is low, and generally only 25%
Left and right, in order to reach big light intensity requirement, it is desirable that single LED power is very big, the heat dissipation design requirement to entire optical system
Very high, longer light guide, mold is larger, costly, and design and difficulty of processing are very big, and micro-structure and light guide tooth are to matching
The control ability of light is poor.
Another scheme is the light bar scheme of the closeer distribution of plurality of LEDs, and plurality of LEDs direct projection penetrates lens, passes through phase
The light of adjacent LED intersects, and realizes the illumination effect of continuous uniform.This design scheme is simple, easy for installation, but to obtain relatively
Even linear light sorurce, the LED numbers that longer linear light sorurce needs are very more, since LED numbers are more, can increase considerably and are
The cost of system.
Also a kind of scheme is to use traditional total reflection (TRI) concentrator, and plurality of LEDs and multiple TIR lens coordinate shape
Linear illumination effect collimates light distribution again by TRI to LED light, and this TRI lens are generally the circle around LED light axis
Rotary body is rectangular occasion for some light-emitting surfaces or light distribution requirements, then needs to cut rotary body, so often
Capacity usage ratio can be caused to decline, and also use more LED numbers.
Application number 201720009148.0 discloses a kind of LED total reflection lens and LED line light source, the total reflection lens
A kind of polyhedral structure has the fully reflecting surface of multiple and different face types, refraction hole and multiple reflection holes is offered in lenticular body,
Wherein reflection hole is distributed in the both sides in refraction hole, is reallocated to the collection of light by a variety of different sides types, realizes the equal of light
Even distribution.But multiple reflection holes of LED total reflection lens setting block before and after beam projecting direction, cause energy sharp
Declined with rate.
Utility model content
The purpose of this utility model is to provide a kind of LED total reflection lens, LED light guides and automobile lamp, this practicality is new
LED total reflection lens are arranged to polyhedral structure by type, and by the variation of different sides type, reallocation, energy are collected to light
Enough realize uniform improvement of visual effect, capacity usage ratio is high, and LED light source is few using number, solves distribution of the existing light guide to light
Uniformity it is poor, and the problem that capacity usage ratio is low.
To achieve the above object, the embodiment of the utility model is：A kind of LED total reflection lens, LED total reflections are saturating
Mirror is the polyhedral structure of integral type, and the main part of the polyhedral structure is a cuboid, the front of the cuboid
For light incidence end, rear portion is beam projecting end, and incidence surface, the top of the incidence surface is arranged in the top surface of the light incidence end
For placing LED light source, the end set of the light incidence end has combination fully reflecting surface, and the combination fully reflecting surface is by setting
Two inclined-planes of angle are rotated 180 degree centered on LED light source and are constituted, two right-angle positions of the light incidence end of the cuboid
Chamfering is installed, the inclined-plane of the chamfering is fully reflecting surface, and the face position of the LED light source light-emitting surface is provided with taper and is all-trans
Face is penetrated, air-lens are provided on the cuboid, close to light incidence end, the air-lens are integral type, pass through up and down
Logical hollow-core construction, the air-lens are divided into two planes of refraction up and down, and the lower plane of refraction is curved surface or plane, the upper folding
It is plane or curved surface to penetrate Middle face, and the both sides of the upper plane of refraction are the dentalation for being uniformly distributed on both sides of the middle, the tooth
Shape structure is total reflection tooth, and the flank of tooth of the total reflection tooth is fully reflecting surface.
Further, according to LED total reflection lens described in the utility model, the lower planes of refraction of the air-lens be to
The middle part of the arc surface of upper protrusion, upper plane of refraction is to recessed arc surface, and the both sides of the recessed arc surface are uniformly to divide
The total reflection tooth of cloth..
Further, according to LED total reflection lens described in the utility model, the incidence surface is plane or concave surface or convex
Face.
Further, according to LED total reflection lens described in the utility model, the incidence surface is revolved centered on LED
Turn 360 ° symmetrically.
Further, according to LED total reflection lens described in the utility model, the end face at the beam projecting end is light extraction
Face, the light-emitting surface are plane or curved surface.
Further, according to LED total reflection lens described in the utility model, be provided on the light-emitting surface decorative pattern or
Micro-structure.
Further, according to LED total reflection lens described in the utility model, the material of the polyhedral structure is glass
Or PC or PMMA.
The utility model additionally provides a kind of LED light guides, and the LED light guides include at least one LED luminescence units,
Each LED luminescence units include the LED total reflection lens described in a LED light source and one, and the LED light source is arranged in LED
The top of the incidence surface of total reflection lens, the LED light-emitting surfaces are towards the incidence surface.
The utility model additionally provides a kind of automobile lamp using the LED light guides.
The advantageous effect that the utility model reaches：LED light repeatedly collect by the combination of different sides type, is collimated
Or diffusion, reallocation, LED light can be evenly distributed to the uniform linear visual effect of realization.
This lens not only may be implemented light collimation outgoing and be used as a kind of LED collimation device by the variation of optical texture, but also
LED light may be implemented, and functional light distribution requirements such as automobile lamp are realized in distribution on demand by force.
The utility model lens body is reasonable for structure, and refraction total reflection structure can freely change oneself for realizing LED light
By distributing, that realizes higher brightness uniformly lights effect；
The variation that the utility model total reflection lens are totally reflected structure by refraction coordinates, and can realize the standard of LED light
Directly, and LED light can be spread on demand；
Processing cost and assembly difficulty are reduced, capacity usage ratio is higher；
This total reflection lens structure, realization is longer linear luminous, using less LED numbers, significantly reduces cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model lens；
Fig. 2 is the vertical view of the utility model lens；
Fig. 3 is the A-A sectional views and light propagation principle schematic diagram of the utility model lens vertical view；
Fig. 4 is the front view of the utility model lens；
Fig. 5 is the B-B sectional views and light propagation principle schematic diagram of the utility model lens front view；
Fig. 6 is the compound lens light guide that lens described in the utility model are used for automobile lamp.
In figure, 1, LED light source；2, incidence surface；3, taper fully reflecting surface；4, combine fully reflecting surface；5-1, air-lens
Lower plane of refraction；5-2, the upper plane of refraction of air-lens；6-1~6-4, the total reflection tooth of air-lens reflecting part；7-1 and 7-2,
The fully reflecting surface at angle；8, light-emitting surface.
Specific implementation mode
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
LED total reflection lens：
As shown in Figure 1, the LED total reflection lens of the utility model are the polyhedral structure of integral type, the polyhedral structure
Main part be a cuboid, the front of the cuboid is light incidence end, and rear portion is beam projecting end, the light
Incidence surface is arranged in the top surface of incidence end, and for placing LED light source, incidence surface is revolved centered on LED for the top of the incidence surface
Turn 360 ° symmetrically, incidence surface is plane, or concave surface or convex surface.The end face at the beam projecting end is light-emitting surface, is gone out
Decorative pattern or micro-structure are provided in smooth surface, with reach control emergent light match light distribution.
If the face position of Fig. 3 and Fig. 4, the LED light source light-emitting surface are provided with taper fully reflecting surface, taper total reflection
Face makes the light for entering lens by incidence surface form total reflection in this lens, passes through incidence surface and taper fully reflecting surface
Face type cooperation realizes the light of LED light source outgoing after the total reflection of taper fully reflecting surface, and light is forward or backward in lens
Collimation is propagated.
The end set of light incidence end has a combination fully reflecting surface, the combination fully reflecting surface by two of setting angle tiltedly
Face is rotated 180 degree centered on LED light source and is constituted, and external structure is a similar spindle structure.By taper fully reflecting surface
Light after total reflection, half light are directly propagated in the utility model lens, the other half light is by combination fully reflecting surface
Total reflection twice after, change the direction of propagation continue propagated in lens, be all-trans by incidence surface, taper fully reflecting surface and combination
The light distribution penetrated behind face is centered on LED, and 180 ° equally distributed.The propagation of light, as shown in Figure 3 and Figure 5,
Chamfering is arranged in two square positions of the light incidence end of the cuboid, and the inclined-plane of the chamfering is total reflection
Face is propagated after the light of the fully reflecting surface can be totally reflected in lens.
Air-lens are provided on the cuboid, close to light incidence end, the air-lens are integral type, up and down
The hollow-core construction of perforation, the air-lens be divided into up and down two planes of refraction, the lower plane of refraction be curved surface or plane, it is described on
It is plane or curved surface in the middle part of plane of refraction, the both sides of the upper plane of refraction are dentalation, and the dentalation is total reflection tooth, institute
The flank of tooth for stating total reflection tooth is fully reflecting surface.
Air-lens structure will again be collected by the LED light of incidence surface, taper fully reflecting surface and combination fully reflecting surface
It reallocates, the light that air-lens are collected first passes around lower plane of refraction and upper plane of refraction and controls light to the cooperation of light refraction
The direction of propagation, a part of light after refraction collimate propagation, after some light is refracted, directive in facted lens
It is totally reflected tooth, the collection of tooth is totally reflected by air-lens, total reflection is formed, is passed in the facted lens of the utility model
It broadcasts.The collection of the remaining some light fully reflecting surface that then inclined-plane Jing Guo chamfering is constituted, is totally reflected.The utility model is empty
The reflecting part of gas lens has been provided with 4 total reflection teeth, and in other embodiments, being totally reflected the number of tooth can increase or subtract
It is few.The propagation of light is referred to such as Fig. 5.
Polyhedral material of main part described in the utility model is the transparent materials such as glass or PC or PMMA.
In use, by the light-emitting surface of LED towards the incidence surface of LED total reflection lens, and keep certain distance, LED with it
Incidence surface described in most of light directive of injection successively passes through the incidence surface and taper fully reflecting surface, by incidence surface and
The light of LED outgoing is collected in the cooperation of taper fully reflecting surface so that the uniform light of LED outgoing projects taper fully reflecting surface
Inner surface is formed using the total reflection of taper fully reflecting surface and propagates, radiated around centered on LED light source along the horizontal plane
Light.
Taper fully reflecting surface collects the almost all light that incidence surface comes in, and is totally reflected to these light, entirely
Light after reflection is propagated along the horizontal plane, and the direction of propagation is that 180 degree direction collimates propagation in lens forward or backward, wherein
The half light that reflection light is located in 180 degree angular region backward is directly propagated in the polyhedron, and reflection light is located at
After the reflection of two fully reflecting surfaces of the other half light priority by combining fully reflecting surface in forward 180 degree angular region, at
For the reflection light in the 180 degree angular region of directive rear.Therefore, after combination fully reflecting surface is to the total reflection of wherein half,
Whole light all become the light of horizontal sheaf rear 180 degree angular region, and are uniformly distributed in 180 degree angular region.Light
The direction of propagation is referring to Fig. 3.
The light of horizontal sheaf rear 180 degree angular region is divided into two parts collection, and the light of a part of angle is by air-lens
It collects, first the lower plane of refraction of directive air-lens, by the refraction of plane of refraction under air-lens, into air-lens, so
Afterwards after the refraction of plane of refraction on air-lens, a part of light collimation is propagated, and light-emitting surface, another part light directive are reached
It is totally reflected the flank of tooth of tooth, is totally reflected, then collimate or is propagated in polyhedral structure at a certain angle, final directive light extraction
Face, uniform.
In the light of horizontal sheaf rear 180 degree angular region, the light of another part angle is made of complete chamfering inclined-plane
Reflecting surface is collected.The inclined-plane of the flank of tooth and chamfering that are totally reflected tooth can be such that collected light is totally reflected, and reflected light
Line direct projection backward.The direction of propagation of light is referring to Fig. 5.
The utility model lens to LED light repeatedly collect, collimate or spread, again divide by the combination of different sides type
Match, LED light can be evenly distributed to the uniform linear visual effect of realization.And the dentation knot of the utility model air-lens
The arrangement of structure does not block mutually on beam projecting direction, improves capacity usage ratio.
LED light guides：
If the LED light guides of Fig. 6, the utility model include at least one LED luminescence units, each LED luminescence units are equal
Including the above-mentioned LED total reflection lens of a LED light source and one, the LED light source is arranged enters light in LED total reflection lens
The top in face, the light-emitting surfaces of the LED light emitting sources is towards the incidence surface.
The utility model easily realizes that 60mm or so length and brightness are met the requirements equal using single LED fit lens
Even illumination effect.
LED car lamp：
The utility model additionally provides a kind of LED car lamp, which includes above-mentioned LED light guides.
The total reflection lens of the utility model both may be implemented light collimation outgoing and be used as one by the variation of optical texture
Kind LED collimation device, and LED light may be implemented and distribute on demand by force, realize functional light distribution requirement such as automobile lamp.
Claims (9)
1. a kind of LED total reflection lens, the LED total reflection lens are the polyhedral structure of integral type, the polyhedron knot
The main part of structure is a cuboid, and the front of the cuboid is light incidence end, and rear portion is beam projecting end, the light
Incidence surface is arranged in the top surface of line incidence end, and the top of the incidence surface is for placing LED light source, the end of the light incidence end
It is provided with combination fully reflecting surface, the combination fully reflecting surface rotates 180 by two inclined-planes of setting angle centered on LED light source
Degree is constituted, and chamfering is arranged in two square positions of the light incidence end of the cuboid, and the inclined-plane of the chamfering is fully reflecting surface,
The face position of the LED light source light-emitting surface is provided with taper fully reflecting surface, it is characterised in that：
It is provided with air-lens on the cuboid, close to light incidence end, the air-lens are integral type, up and down
Structure, the air-lens are divided into two planes of refraction up and down, and the lower plane of refraction is curved surface or plane, in the upper plane of refraction
Portion is plane or curved surface, and the both sides of the upper plane of refraction are the dentalation for being uniformly distributed on both sides of the middle, the dentalation
To be totally reflected tooth, the flank of tooth of the total reflection tooth is fully reflecting surface.
2. LED total reflection lens according to claim 1, which is characterized in that the lower plane of refraction of the air-lens be to
The middle part of the arc surface of upper protrusion, upper plane of refraction is to recessed arc surface, and the both sides of the recessed arc surface are uniformly to divide
The total reflection tooth of cloth.
3. LED total reflection lens according to claim 1, which is characterized in that the incidence surface is plane or concave surface or convex
Face.
4. LED total reflection lens according to claim 3, which is characterized in that the incidence surface is rotated centered on LED
360 ゜ are symmetrical.
5. LED total reflection lens according to claim 1, which is characterized in that the end face at the beam projecting end is light extraction
Face, the light-emitting surface are plane or curved surface.
6. LED total reflection lens according to claim 5, which is characterized in that be provided on the light-emitting surface decorative pattern or
Micro-structure.
7. LED total reflection lens according to claim 1, which is characterized in that the material of the polyhedral structure is glass
Or PC or PMMA.
8. a kind of LED light guides, it is characterised in that：The LED light guides include at least one LED luminescence units, each LED hairs
Light unit includes a LED light source and such as claim 1-7 any one of them LED total reflection lens, the LED light source
It is arranged in the top of the incidence surface of LED total reflection lens, the light-emitting surface of the LED light source is towards the incidence surface.
9. a kind of automobile lamp using LED light guides as claimed in claim 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392946.2U CN207815220U (en) | 2017-10-25 | 2017-10-25 | A kind of LED total reflection lens, LED light guides and automobile lamp |
| PCT/CN2018/102722 WO2019080634A1 (en) | 2017-10-25 | 2018-08-28 | Led total reflection lens, led light guide body, and automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392946.2U CN207815220U (en) | 2017-10-25 | 2017-10-25 | A kind of LED total reflection lens, LED light guides and automobile lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207815220U true CN207815220U (en) | 2018-09-04 |
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ID=63337325
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721392946.2U Active CN207815220U (en) | 2017-10-25 | 2017-10-25 | A kind of LED total reflection lens, LED light guides and automobile lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207815220U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740995A (en) * | 2017-10-25 | 2018-02-27 | 上海小糸车灯有限公司 | A kind of LED total reflection lens, LED light conductors and automobile lamp |
| CN114857542A (en) * | 2022-04-24 | 2022-08-05 | 深圳泛光科技有限公司 | Lens without light pollution, lighting device and lighting system |
| CN116697296A (en) * | 2023-08-03 | 2023-09-05 | 常州星宇车灯股份有限公司 | Light source coupling structure |
-
2017
- 2017-10-25 CN CN201721392946.2U patent/CN207815220U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740995A (en) * | 2017-10-25 | 2018-02-27 | 上海小糸车灯有限公司 | A kind of LED total reflection lens, LED light conductors and automobile lamp |
| CN114857542A (en) * | 2022-04-24 | 2022-08-05 | 深圳泛光科技有限公司 | Lens without light pollution, lighting device and lighting system |
| CN114857542B (en) * | 2022-04-24 | 2024-04-09 | 深圳泛光科技有限公司 | Lens without pollution, lighting device and lighting system |
| CN116697296A (en) * | 2023-08-03 | 2023-09-05 | 常州星宇车灯股份有限公司 | Light source coupling structure |
| CN116697296B (en) * | 2023-08-03 | 2023-10-13 | 常州星宇车灯股份有限公司 | light source coupling structure |
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Address after: 201821 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd. Address before: 201821 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |