CN107346045A - A kind of light guide member and the car light with the light guide member - Google Patents
A kind of light guide member and the car light with the light guide member Download PDFInfo
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- CN107346045A CN107346045A CN201610289306.2A CN201610289306A CN107346045A CN 107346045 A CN107346045 A CN 107346045A CN 201610289306 A CN201610289306 A CN 201610289306A CN 107346045 A CN107346045 A CN 107346045A
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- guide member
- light guide
- optical surface
- light
- optical
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of light guide member, including at least one optical unit, the optical unit includes preceding optical surface, optical surface afterwards, upper and lower surface, it is provided with the upper surface with the connection edge of the rear optical surface and couples the plane of incidence, light source part is provided with above the coupling plane of incidence, optical surface is fully reflecting surface after described, the preceding optical surface is stepped exit facet, there is at least one empty optics area in the light guide member, the empty optics area includes the first optical surface close to the rear optical surface and the second optical surface close to the preceding optical surface.The invention also discloses a kind of car light, including lamp body and the decorative circle being arranged in the lamp body, bracket component, light source part, outer lens and light guide member as described above, the light guide member is fixed between the decorative circle and the bracket component, and the outer lens is arranged on the front of the preceding optical surface of the light guide member.
Description
Technical field
The present invention relates to car lighting field, more particularly to a kind of light guide member.
The invention further relates to a kind of car light with the light guide member.
Background technology
In car lighting field, plurality of LEDs light source and light guide member are combined and realize linear knot
Structure type is universal technological means.Because LED is spot light, its energy density from center laterally
Successively decrease, reflection even across secondary light-distribution, after refraction, the light distribution in adjacent LED region and
Difference still be present in the light distribution immediately ahead of LED；But the overcritical uniformity for lighting effect of vehicle moulding, no
Only need the uniformity for lighting effect of car light high from the positive apparent direction of vehicle, and from vehicle interior side
Seen with outside, still need to keep uniform neat linear moulding.
Existing heavy wall light guide member coordinates aluminium base to be used as light source, this solution using flexible PCB mostly
Not only single-piece PCB costs are high for scheme, and mounting structure is also complicated, and alignment error is also relatively large.Also,
The light allotted according to existing heavy wall light guide member, the uniformity still have deficiency.
The content of the invention
In order to overcome above-mentioned technological deficiency, it is an object of the invention to provide one kind can realize multiple luminous intensity distribution
So as to be emitted the light guide member of uniform light.
The invention discloses a kind of light guide member, including at least one optical unit, the optical unit bag
Include preceding optical surface, rear optical surface, upper and lower surface, on the upper surface with it is described after optical surface
Connection edge be provided with the coupling plane of incidence, be provided with light source part above the coupling plane of incidence, it is described
Optical surface is fully reflecting surface afterwards, and the preceding optical surface is stepped exit facet, have in the light guide member to
A few empty optics area, the empty optics area include after described first optical surface of optical surface and
Close to the second optical surface of the preceding optical surface.
Preferably, the bore in the empty optics area is in vertically gradual change trend from top to bottom.
Preferably, the preceding optical surface is that the step type that vertical direction and/or horizontal direction have drop goes out
Penetrate face.
Preferably, the rear optical surface is any one in free form surface, hyperboloid and plane.
Preferably, first optical surface is free form surface, and second optical surface is that have vertical raised line
The free form surface of line or recessed bar line.
Preferably, the coupling plane of incidence is perpendicular to beam projecting comprising at least one edge parallel to each other
The stria or recessed bar line of direction extension, the face of the recessed bar line or stria is free form surface.
Preferably, the empty optics area bore becomes larger.
Preferably, second optical surface is the direction protrusion towards the rear optical surface or recessed arc knot
Structure.
Preferably, the width of second optical surface is configured to receive and spread by first optical surface
Whole light.
Preferably, the spacing of the vertical stria or recessed bar line is 1-3mm.
Preferably, the light source part includes printed circuit board (PCB) and at least one LED being mounted thereon
Light-emitting component, the rear optical surface of each optical unit correspond at least one LED and lighted
Element.
Preferably, comprising multiple optical units, the rear optics of the two neighboring optical unit
Face is linked together by joint face and forms hierarchic structure.
Preferably, the spacing between two adjacent LED light-emitting components is 2-25mm.
Preferably, along the horizontal-extending direction of the adjacent optical unit of the light guide member, often
The preceding optical surface of one optical unit is connected to form the overall exit facet with pattern structure.
A kind of car light, including lamp body and be arranged in the lamp body decorative circle, bracket component,
Light source part, outer lens and light guide member, the structure of the light guide member is as described above.
Preferably, the light guide member is fixed between the decorative circle and the bracket component, described to match somebody with somebody outside
Light microscopic is arranged on the front of the preceding optical surface of the light guide member, and the upper interface of the light guide member is set
It is equipped with the bar linkage structure for fixing the light source part and the buckle structure for positioning the decorative circle, institute
The lower interface for stating light guide member is provided with the boss structure combined with the bracket component, for the light guide
The connection of part and the bracket component.
Preferably, the light guide member using PMMA or PC materials by once or quadric injection mould and
Into.
After employing above-mentioned technical proposal, compared with prior art, have the advantages that：
1. according to the light guide member of the present invention, multiple luminous intensity distribution can be realized in light guide member, so as to adjust
The each light extraction of LED light-emitting component in itself is respectively to difference so that light fixture point bright area is in all directions
Brightness uniformity it is consistent.
2. according to the light guide member of the present invention, first optical surface in its empty optics area and the second optical surface
Set, add the overlay area of collimated light beam, make what two adjacent LED light-emitting components were sent
Dark space unobvious between light, and the outgoing beam of each transverse area can be ensured laterally and vertical
Light distribution it is all roughly the same, it is all relatively uniform from all directions to make final effect of lighting.
3. according to the light guide member of the present invention, the mounting structure being arranged on can be reduced to greatest extent
Influence of the non-optical structure to optical system.
Brief description of the drawings
Fig. 1 is the stereogram for the light guide member for meeting the preferred embodiment of the present invention；
Fig. 2 is the top view for the light guide member for meeting the preferred embodiment of the present invention；
Fig. 3 is the index path of Fig. 2 a-quadrant zoomed-in view；
Fig. 4 is Fig. 2 section B-B figure；
Fig. 5 is Fig. 2 section B-B index path；
Fig. 6 is the schematic diagram in empty optics area in the light guide member for meet the preferred embodiment of the present invention.
Reference：
1- light guide members, 11- optical units, optical surface before 111-, optical surface after 112-, 113- upper surfaces,
114- lower surfaces, the 115- coupling planes of incidence, 116- strias or recessed bar line striped, 117- surface profiles,
The upper interfaces of 12-, interface under 13-, 14- cavities optics area, the optical surfaces of 141- first, the optical surfaces of 142- second,
The vertical strias of 143- or recessed bar line, 15- joint faces, 16- bar linkage structures, 17- buckle structures；
2- light source parts, 21- printed circuit board (PCB)s, 22-LED light-emitting components；
3- beam projectings direction；
The outer lens of 4-；
5- decorative circles；
6- bracket components.
Embodiment
Advantages of the present invention is expanded on further below in conjunction with accompanying drawing and specific embodiment.
As shown in Figures 1 to 6, the light guide member 1 of the preferred embodiment of the present invention is met, for vehicle
Headlight, taillight illumination, including at least one optical unit 11, each optical unit 11 is along light guide member
The 1 adjacent setting in horizontal-extending direction or integrally formed structure, including preceding optical surface 111,
Optical surface 112, upper surface 113 and lower surface 114 afterwards, the He of upper surface 113 of each optical unit 11
Lower surface 114 is concordant and is continuously connected so as to form the upper interface 12 of smooth light guide member 1 with
Interface 13, in certain embodiments, upper interface 12 and lower interface 13 be by multiple upper surfaces 113 and under
Surface 114 is continuously close to what arrangement formed, in certain embodiments, upper interface 12 and lower interface 13
By the Non-optical surfaces between multiple upper surfaces 113 and two neighboring upper surface 113 and multiple lower surfaces
Non-optical surfaces composition between 114 two neighboring lower surfaces 114, the horizontal-extending direction refer to from even
One end of preceding optical surface 111 and rear optical surface 112 is connect towards the preceding optical surface 111 of connection and rear optical surface 112
The other end extension direction；On the upper surface 113 of optical unit 11 with the company of rear optical surface 112
Edge fit edge is provided with the coupling plane of incidence 115, and light source part 2 is provided with above the coupling plane of incidence 115,
Inject in light guide member 1, realize after the light coupling that the coupling plane of incidence 115 is sent light source part 2
The effect of first successive step primary light distribution；Optical surface 112 is fully reflecting surface afterwards, will pass through the coupling plane of incidence
115 light coupled are totally reflected so as to form the collimated light beam that beam projecting direction 3 is emitted forwards,
The fully reflecting surface can be the free form surface of entirety or multiple be presented in the form of vertical bar splicing
Free form surface combination, it is preferable that the rear optical surface 112 is convex surface free form surface；Preceding optical surface 111
It is the surface profile 117 positioned at the front end of light guide member 1 for stepped exit facet, it can will be from light guide
The internal transmission of part 1 to light thereon according to luminous intensity distribution and lights the direction of the requirement of effect vertically and horizontally
Bleed around, the stepped surface profile 117 of the preceding optical surface 111 can be according to the modeling requirement of car light
Adjustment；In order to further improve the uniformity for lighting effect, be additionally provided with light guide member 1 to
A few empty optics area 14, empty optics area 14 include the first optical surface close to rear optical surface 112
141 and the second optical surface 142 close to preceding optical surface 111, the first optical surface 141 can will be from rear optics
The collimated light beam being emitted along beam projecting direction 3 that face 112 is formed afterwards by total reflection is overall slightly
Diffused up to along the horizontal-extending side of light guide member 1, make the collimated light beam of entrance increase some angle of releases,
Light after diffusion is projected on the second optical surface 142, and second optical surface 142 is further by light
Line is spread so as to improve the uniformity of light distribution.The empty optics area 14 of the present invention can make whole optical system
System adds the chance of the optimization of luminous intensity distribution twice, adds the overlay area of collimated light beam, makes between two light sources
Dark space unobvious, and can guarantee that the outgoing beam of each transverse area laterally vertical light distribution all substantially phases
Together, so it is that final effect of lighting all is relatively uniform in terms of all directions.
In a preferred embodiment of the invention, the shape in the empty optics area 14 in light guide member 1
Shape is configured as cross sectional shape as shown in Figure 4, the bore in the empty optics area 14 vertically from
Up to lower is in gradual change trend, and can become larger to taper into.Preferably, the empty optics area
14 bores become larger.The empty optics area 14 being configured as above, it is open at the top of the ratio of bottom greatly, such as
This configuration is that stripping direction is directed downwardly because in the knockout course for carrying out light guide member 1.Certainly,
The side elevation of light guide member 1 can also be designed to the stepped ramp type segmentation demoulding, so as to reduce angle of inclination.
In a preferred embodiment of the invention, the first optical surface 141 is free form surface, makes injection
Homogenizer is covered on the second optical surface 142, the second optical surface 142 be have vertical stria or
The free form surface of recessed bar line 143, the vertical stria or recessed bar line 143 are uniformly distributed, as part
Lateral divergence.
In a preferred embodiment of the invention, second optical surface 142 in empty optics area 14 is court
The direction protrusion of optical surface 112 or recessed arcuate structure afterwards.
In a preferred embodiment of the invention, the width of the second optical surface 142 is configured to receive
The whole light spread by the first optical surface 141 in light guide member 1, especially along light guide member 1
On horizontal-extending direction, light utilization is added.
In a preferred embodiment of the invention, the vertical stria or recessed on the second optical surface 142
The spacing of striped 143 is 1-3mm.Vertical stria or recessed bar line can be adjusted according to actual conditions
143 spacing.
In a preferred embodiment of the invention, light source part 2 includes printed circuit board (PCB) 21 and installation
At least one LED light-emitting component 22 thereon, the correspondence of rear optical surface 112 of each optical unit 11
At least one LED light-emitting component 22, i.e., the rear optical surface 112 of each optical unit 11 can receive to
The light beam that a few LED light-emitting component 22 is emitted.In the rear optical surface 112 and LED of the preferred embodiment
During the pairing of light-emitting component 22 is set, the light emitted by each LED light-emitting component 22 can
There is specific structure and the rear optical surface 112 in orientation, so as to by complete in optical unit 11 corresponding to directive
Reflection, then after the multiple luminous intensity distribution of empty optics area 14 and preceding optical surface 111 in light guide member 1,
Form the rear optical surface 112 of the light of specific circuit, multipair LED light-emitting component 22 and optical unit 11
Pairing set and can form multi beam there is the light of specific circuit, by LED corresponding to these light
Light-emitting component 22 is chosen and configured, and can adapt to the light extraction demand of varying environment condition, the company of realization
The effect of continuous lighting.
In the above preferred embodiment of the present invention, rear optical surface 112 is preferably configured as convex surface freedom
Curved surface, any one in hyperboloid and plane.
In a preferred embodiment of the invention, light guide member 1 includes multiple optical units 11, adjacent
The rear optical surface 112 of two optical units 11 is linked together by joint face 15 and forms hierarchic structure.
Hierarchic structure enables to continuous lighting effect more diversified.
In a preferred embodiment of the invention, whole rear optical surfaces 112 is formed along light guide member 1
The uniform successive steps structure of horizontal-extending direction extension.Successive steps structure enables to lighting effect
Continuity more preferably.
In a preferred embodiment of the invention, the array of LED light-emitting component 22 is embedded in printing electricity
On road plate 21.
In a preferred embodiment of the invention, between two adjacent LED light-emitting components 22
Away from for 2-25mm.According to different environmental condition and use demand, by LED light-emitting component 22 two-by-two
Between the spacing purpose that is adjusted to achieve an even light distribution.
In a preferred embodiment of the invention, along the adjacent optical unit 11 of light guide member 1
On horizontal-extending direction, the preceding optical surface 111 of each optical unit 11 is connected to form with surface profile
117 overall exit facet.That is, the preceding optical surface 111 that light guide member 1 is used for emergent ray forward is one
The individual continuous exit facet of entirety.
The present invention above preferred embodiment in, the preceding optical surface 111 of each optical unit 11 or
The preceding optical surface 111 for forming the overall exit facet in the front of light guide member 1 is preferably configured as in vertical direction
And/or there is the stepped exit facet of drop in horizontal direction.There is the stepped decorative pattern of drop to be emitted for this
Face can be transformed into other shapes, such as neat patterned surface according to moulding demand, and the form of decorative pattern can also
Adjusted according to modeling requirement.
In a preferred embodiment of the invention, it is mutually equal comprising at least one to couple the plane of incidence 115
The stria or recessed bar line 116 that capable edge extends perpendicular to beam projecting direction, the stria or recessed
The free form surface of striped 116.The coupling plane of incidence 115 of light guide member 1 can realize just successive step LED
The free form surface of the effect of original light distribution, the stria or recessed bar line 116 can be by the luminous members of LED
The light beam that part 22 is emitted amplifies some angles along vehicle depth direction, so that light beam is in rear optical surface
112 coverings when being totally reflected are more uniform.
In a preferred embodiment of the invention, light guide member 1 is passed through using PMMA or PC materials
Once or quadric injection mould forms.
The invention discloses a kind of car light, including lamp body and be arranged in lamp body decorative circle 5,
Bracket component 6, light source part 2, outer lens 4 and light guide member 1 as described above, the light guide portion
Part 1 is fixed between decorative circle 5 and bracket component 6, and outer lens 4 is arranged on the preceding light of light guide member 1
The front in face 111.By outer lens 4 set can by the uniform light received luminous intensity distribution again,
Such as the luminous intensity distribution of different colours is realized by way of Tinted optical film is set.
In a preferred embodiment of the invention, the upper interface 13 of the light guide member 1, which is provided with, is used for
The bar linkage structure 16 of fixed light source part 2 and the buckle structure 17 for positioning decorative circle 5, light guide member
1 lower interface 114 is provided with the boss structure (not shown) combined with bracket component 6, for light guide portion
Part 1 connects with the Laser Welding of bracket component 6.These mounting structures can reduce non-optical knot to greatest extent
Influence of the structure to optical system.
According to the light guide member 1 of the present invention, multiple luminous intensity distribution can be realized in light guide member 1, so as to adjust
Whole each LED light-emitting component 22 light extraction of itself is respectively to difference so that light fixture point bright area is in each side
Upward brightness uniformity is consistent.The light guide member 1, first optical surface 141 in its empty optics area 14
With the setting of the second optical surface 142, the covering for the collimated light beam being emitted along beam projecting direction 3 is added
Region, make the dark space unobvious between the light that two adjacent LED light-emitting components 22 are sent, and
It can ensure that the outgoing beam of each transverse area is all roughly the same in horizontal and vertical light distribution, make most
Whole effect of lighting all is relatively uniform from all directions.The peace being arranged on the light guide member 1
Assembling structure can reduce influence of the non-optical structure to optical system to greatest extent.
It should be noted that embodiments of the invention have preferable implementation, and not the present invention is appointed
The limitation of what form, any one skilled in the art become possibly also with the technology contents of the disclosure above
More or equivalent effective embodiment is modified to, as long as without departing from the content of technical solution of the present invention, according to this
Any modification or equivalent variations and modification that the technical spirit of invention is made to above example, still fall within
In the range of technical solution of the present invention.
Claims (16)
1. a kind of light guide member, including at least one optical unit, the optical unit include preceding optical surface,
Optical surface, upper and lower surface afterwards, on the upper surface with it is described after optical surface connection side
Edge is provided with the coupling plane of incidence, and light source part, the rear light are provided with above the coupling plane of incidence
Face is fully reflecting surface, and the preceding optical surface is stepped exit facet, it is characterised in that the light
Learn unit and include at least one empty optics area, the empty optics area is included close to the rear optics
First optical surface in face and the second optical surface close to the preceding optical surface.
2. light guide member as claimed in claim 1, it is characterised in that the bore edge in the empty optics area
Vertical direction is in gradual change trend from top to bottom.
3. light guide member as claimed in claim 1, it is characterised in that the preceding optical surface is vertical direction
And/or horizontal direction has the stepped exit facet of drop.
4. light guide member as claimed in claim 1, it is characterised in that it is described after optical surface be free form surface,
Any one in hyperboloid and plane.
5. light guide member as claimed in claim 1, it is characterised in that first optical surface is free song
Face, second optical surface are the free form surfaces with vertical stria or recessed bar line.
6. light guide member as claimed in claim 1, it is characterised in that the coupling plane of incidence is comprising extremely
The stria or recessed bar line that a few edge parallel to each other extends perpendicular to beam projecting direction, institute
The face for stating recessed bar line or stria is free form surface.
7. light guide member as claimed in claim 2, it is characterised in that the empty optics area bore is gradual
Become big.
8. the light guide member as described in claim any one of 1-7, it is characterised in that second optical surface
For towards the direction protrusion of optical surface after described or recessed arcuate structure.
9. light guide member as claimed in claim 8, it is characterised in that the width of second optical surface is set
The whole light spread by first optical surface can be received by being set to.
10. light guide member as claimed in claim 5, it is characterised in that the vertical stria or recessed bar
The spacing of line is 1-3mm.
11. the light guide member as described in claim any one of 1-7, it is characterised in that the light source part bag
At least one LED light-emitting component for including printed circuit board (PCB) and being mounted thereon, each optics list
The rear optical surface of member corresponds at least one LED light-emitting component.
12. the light guide member as described in claim any one of 1-7, it is characterised in that include multiple light
Unit is learned, the rear optical surface of the two neighboring optical unit is linked together by joint face
And form hierarchic structure.
13. light guide member as claimed in claim 11, it is characterised in that two adjacent LED hairs
Spacing between optical element is 2-25mm.
14. light guide member as claimed in claim 12, it is characterised in that along the adjacent of the light guide member
On the horizontal-extending direction of the optical unit, the preceding optical surface phase of each optical unit
Even form the overall exit facet with pattern structure.
15. a kind of car light, including lamp body and be arranged in the lamp body decorative circle, bracket component,
Light source part, outer lens and light guide member, it is characterised in that the structure of the light guide member is such as
Described in claim 1-14 any one.
16. car light as claimed in claim 15, it is characterised in that the light guide member is fixed on the decorative circle
Between the bracket component, the outer lens is arranged on the preceding optics of the light guide member
The front in face, the upper interface of the light guide member are provided with the connecting rod for fixing the light source part
Structure and the buckle structure for positioning the decorative circle, the lower interface of the light guide member be provided with
The boss structure that the bracket component combines, the company for the light guide member and the bracket component
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289306.2A CN107346045B (en) | 2016-05-04 | 2016-05-04 | Light guide component and car lamp with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289306.2A CN107346045B (en) | 2016-05-04 | 2016-05-04 | Light guide component and car lamp with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107346045A true CN107346045A (en) | 2017-11-14 |
| CN107346045B CN107346045B (en) | 2023-09-12 |
Family
ID=60253550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610289306.2A Active CN107346045B (en) | 2016-05-04 | 2016-05-04 | Light guide component and car lamp with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107346045B (en) |
Cited By (8)
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| CN108489460A (en) * | 2018-03-28 | 2018-09-04 | 福建省永正工程质量检测有限公司 | A kind of high-supported formwork high-precision tilt angle test system |
| CN108571707A (en) * | 2017-12-06 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of reflective heavy wall light guide and lighting device |
| CN108775546A (en) * | 2018-07-17 | 2018-11-09 | 华域视觉科技(上海)有限公司 | Car light light conducting bar |
| CN109990243A (en) * | 2017-12-29 | 2019-07-09 | 法雷奥照明湖北技术中心有限公司 | Light emitting device and motor vehicles for motor vehicles |
| CN110043870A (en) * | 2019-04-22 | 2019-07-23 | 大茂伟瑞柯车灯有限公司 | A kind of low cost heavy wall guide structure |
| CN110285356A (en) * | 2019-07-25 | 2019-09-27 | 华域视觉科技(上海)有限公司 | A kind of optical system for realizing car light uniformly light-emitting |
| CN115059897A (en) * | 2022-06-29 | 2022-09-16 | 嘉兴海拉灯具有限公司 | Light guide structure, optical system and car light |
| WO2022228395A1 (en) * | 2021-04-26 | 2022-11-03 | 华域视觉科技(上海)有限公司 | Light-emitting device and vehicle |
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| CN110285356A (en) * | 2019-07-25 | 2019-09-27 | 华域视觉科技(上海)有限公司 | A kind of optical system for realizing car light uniformly light-emitting |
| WO2022228395A1 (en) * | 2021-04-26 | 2022-11-03 | 华域视觉科技(上海)有限公司 | Light-emitting device and vehicle |
| CN115059897A (en) * | 2022-06-29 | 2022-09-16 | 嘉兴海拉灯具有限公司 | Light guide structure, optical system and car light |
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| CN107346045B (en) | 2023-09-12 |
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