CN208606108U - A kind of matrix LED distance light optical system - Google Patents
A kind of matrix LED distance light optical system Download PDFInfo
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- CN208606108U CN208606108U CN201821171389.6U CN201821171389U CN208606108U CN 208606108 U CN208606108 U CN 208606108U CN 201821171389 U CN201821171389 U CN 201821171389U CN 208606108 U CN208606108 U CN 208606108U
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- distance light
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Abstract
The utility model discloses a kind of matrix LED distance light optical system, belongs to vehicle light illumination field.It includes LED circuit board, interior lampshade, reflecting mirror and projecting lens, on the central optical axis X for being projected in projecting lens of the centre of luminescence vertical direction of the LED chip in LED circuit board；Interior lampshade is composed of multiple collector lenses, and the focus of each collector lens in the same plane, and is overlapped with the light-emitting surface of LED chip；The centre of luminescence of one LED chip of centre on the focal position and LED circuit board of projecting lens is overlapped；The light that LED chip in LED circuit board issues is assembled by the collector lens of interior lampshade, a part of light directly enters to inject projecting lens, form the center brightness part of distance light, another part light is by two pieces of reflecting surface multiple reflections up and down of reflecting mirror, it projects and projects through projecting lens again, the left and right width for increasing distance light light shape, improves the center brightness of distance light, while the optical efficiency of improving optical system.
Description
Technical field
The utility model belongs to vehicle light illumination field, especially a kind of matrix LED distance light optical system.
Background technique
In recent years, as matrix LED distance light technology develops very fast, matrix LED headlight becomes automobile lamp future
One of direction of development.Matrix LED headlight is plurality of LEDs array arrangement, automatic by system under the cooperation of front camera
The bright dark variation for controlling every LED forms dark space in specific region, avoids influence of the distance light to other vehicles on road.
Traditional matrix LED headlight is in order to meet the performance of distance light, and the LED quantity used is more, whole light efficiency one
As only 20%-25%, whole system is at high cost, and energy utilization rate is lower.
Utility model content
At high cost existing for classical matrix formula LED headlight to solve, the low problem of efficiency, the utility model provides a kind of square
Array type LED distance light optical system.
To achieve the above object, the utility model adopts the following technical solutions:
A kind of matrix LED distance light optical system, it includes LED circuit board, interior lampshade, reflecting mirror and projecting lens, LED
On the central optical axis X for being projected in projecting lens of the centre of luminescence vertical direction of LED chip on circuit board；Interior lampshade is by multiple
Collector lens is composed, and the focus of each collector lens in the same plane, and is overlapped with the light-emitting surface of LED chip；Projection
The centre of luminescence of one LED chip of centre on the focal position and LED circuit board of lens is overlapped；LED core in LED circuit board
The light that piece issues is assembled by the collector lens of interior lampshade, and a part of light directly enters to inject projecting lens, be formed in distance light
Heart luminance part, another part light is by two pieces of reflecting surface multiple reflections up and down of reflecting mirror, then projects and project through projecting lens.
Further, in order to increase the width up and down and center brightness of distance light, two pieces of reflectings surface up and down of reflecting mirror can be with
The angled a of central optical axis X of projecting lens, wherein 5 °≤a≤15 °, and the surface of reflecting surface can add place of aluminizing by dermatoglyph
Reason.
Further, the inside surface A of projecting lens dipped beam source can be spliced by latticed polygon plane, more
Side shape can be distributed vertically with a row or multiple rows of array distribution, and a length of 0.1-2mm of polygon edge.
Further, the plane of incidence of interior lampshade is rectangle plane, and exit facet is mutually spliced by multiple outer convex lenses, the company of being formed
Continuous curved surface.
Further, interior lampshade can be connected with each other by a row or multi-row collector lens, form a complete structure, optically focused
The material of lens can be glass, PC, PMMA or silica gel.
Further, the collector lens focal length of interior lampshade is 1-2mm, i.e., the distance of light-emitting surface of the interior lampshade to LED chip
For 1-2mm, the left and right width of single collector lens is 2-3mm, upper-lower height 4-6mm.
Further, the LED chip in LED circuit board can be distributed with a row or multi-row.
The utility model has the advantages that
1. the pixel quantity of the matrix LED distance light optical system of the utility model is flexible and changeable, can be it is single, can also
To be multiple rows of.
It aluminizes 2. the matrix LED distance light optical system of the utility model is added by two pieces of surfaces above and below increasing by dermatoglyph
The reflecting surface of processing, not only increases the width up and down of distance light light shape, and improves the center brightness of distance light and the light of system
Effect.
3. the matrix LED distance light optical system of the utility model is polygon in the inner surface addition of projecting lens dipped beam source
Shape planar structure, can be between effective solution pixel the problem of brightness disproportionation.
Detailed description of the invention
Fig. 1 is the main view of the matrix LED distance light optical system of an embodiment of the present invention；
Fig. 2 is the top view of the matrix LED distance light optical system of an embodiment of the present invention；
Fig. 3 is the schematic diagram of reflecting mirror in Fig. 1；
Fig. 4 is the schematic diagram of projecting lens in Fig. 1；
Fig. 5 is the Illumination Distribution figure in an embodiment of the present invention without reflecting mirror；
Fig. 6 is the Illumination Distribution figure in an embodiment of the present invention with reflecting mirror；
In figure: 1-LED circuit board, lampshade in 2-, 3- reflecting mirror, 4- projecting lens, the upper reflective face of 31- reflecting mirror,
The lower reflective face of 32- reflecting mirror, the inner surface of A- projecting lens dipped beam source, the central optical axis of X- projecting lens, a- reflection
The upper reflective face of mirror and the angle of projection lens center optical axis.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Present embodiments provide a kind of matrix LED distance light optical system, as shown in Figure 1, 2, it include LED circuit board 1,
Interior lampshade 2, reflecting mirror 3 and projecting lens 4, the LED core that laterally homogeneous 15 luminous fluxes of arrangement are 330lm in LED circuit board 1
Piece, the projection of the centre of luminescence vertical direction of every LED chip is on the central optical axis X of projecting lens 4；Interior lampshade 2 is by 15
A collector lens is composed, and the focus of each collector lens in the same plane, is overlapped with the light-emitting surface of LED chip；Projection
The focal length of lens 4 is 80mm, and the centre of luminescence of the one LED chip of centre on focal position and LED circuit board 1 is overlapped.Such as Fig. 3
Shown, in 10 ° of angle, the lower part of reflecting mirror 3 is reflected by the upper reflective face 31 of reflecting mirror 3 and the central optical axis X of projecting lens 4
Face 32 and the upper reflective face 31 of reflecting mirror 3 are symmetrical about central optical axis X, and the surface of upper and lower two pieces of reflectings surface adds plating by dermatoglyph
Aluminium processing.As shown in figure 4, the inside surface A of 4 dipped beam source of projecting lens is formed by the regular quadrangle plain splice of 1mm*1mm, throw
The size of shadow lens 4 is 70mm*45mm.
The working principle of the present embodiment is: the light that the LED chip in LED circuit board 1 issues is by the optically focused on interior lampshade 2
Lens are assembled, and a part of light directly enters to inject projecting lens 4, forms the center brightness part of distance light, another part light quilt
Two pieces of reflecting surface multiple reflections up and down of reflecting mirror 3, then project and project through projecting lens 4, the left and right for increasing distance light light shape is wide
Degree, improves the center brightness of distance light, while improving the optical efficiency of optical system.
The present embodiment is simulated by software, and in the case where reflecting mirror 3 are not added, 25m screen luminous flux is 1510lm, distance light
Upper and lower width ± 3.8 °, system light efficiency 30.51%, as shown in Figure 5.In all immovable situation of other conditions, increase reflection
Mirror 3 is simulated again, and 25m screen luminous flux is promoted to 1800lm, and distance light up and down such as scheme by width ± 5.4 °, system light efficiency 36.36%
Shown in 6, the light efficiency efficiency of whole system improves 5.85%.
According to a kind of matrix LED distance light optical system of the present embodiment, only need to add a reflecting mirror can effectively be mentioned
The width up and down of high entire optical system light efficiency and distance light light shape, design of part is simple, and cost is relatively low.
Limitation to scope of protection of the utility model, those skilled in the art should understand that, in the skill of the utility model
On the basis of art scheme, the various modifications or variations that can be made by those skilled in the art with little creative work still exists
Within the protection scope of the utility model.
Claims (7)
1. a kind of matrix LED distance light optical system, it includes LED circuit board (1), interior lampshade (2), reflecting mirror (3) and projection
Lens (4), it is characterised in that: being projected in for the centre of luminescence vertical direction of the LED chip on the LED circuit board (1) is described
On the central optical axis X of projecting lens (4)；The interior lampshade (2) is composed of multiple collector lenses, the coke of each collector lens
Point in the same plane, and is overlapped with the light-emitting surface of LED chip；The focal position of the projecting lens (4) and the LED circuit
The centre of luminescence of one LED chip of centre on plate (1) is overlapped；The light that LED chip on the LED circuit board (1) issues
It is assembled by the collector lens of the interior lampshade (2), a part of light directly enters to inject the projecting lens (4), forms distance light
Center brightness part, another part light is by two pieces of reflecting surface multiple reflections up and down of the reflecting mirror (3), then through the projection
Lens (4) projection is projected.
2. matrix LED distance light optical system according to claim 1, it is characterised in that: two pieces up and down of the reflecting mirror (3)
The angled a of central optical axis X of reflecting surface and the projecting lens (4), wherein 5 °≤a≤15 °, and skin is passed through on the surface of reflecting surface
Line adds processing of aluminizing.
3. matrix LED distance light optical system according to claim 1, it is characterised in that: projecting lens (4) the dipped beam source
Inside surface A be spliced by latticed polygon plane, one row of polygon is distributed vertically or multiple rows of array distribution, and polygon
Shape side length is 0.1-2mm.
4. according to claim 1 or 2 or 3 matrix LED distance light optical system, it is characterised in that: interior lampshade (2) enter
Penetrating face is rectangle plane, and exit facet is mutually spliced by multiple outer convex lenses, forms continuous curved surface.
5. according to the matrix LED distance light optical system of claim 4, it is characterised in that: the interior lampshade (2) is by a row or multi-row
Collector lens is connected with each other, and forms a complete structure, and the material of collector lens is glass, PC, PMMA or silica gel.
6. according to claim 1 or 2 or 3 or 5 matrix LED distance light optical system, it is characterised in that: the interior lampshade (2)
Collector lens focal length be 1-2mm, the left and right width of single collector lens is 2-3mm, upper-lower height 4-6mm.
7. according to claim 1 or 2 or 3 matrix LED distance light optical system, it is characterised in that: the LED circuit board (1)
On LED chip a row or multi-row distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171389.6U CN208606108U (en) | 2018-07-24 | 2018-07-24 | A kind of matrix LED distance light optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171389.6U CN208606108U (en) | 2018-07-24 | 2018-07-24 | A kind of matrix LED distance light optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208606108U true CN208606108U (en) | 2019-03-15 |
Family
ID=65669858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821171389.6U Active CN208606108U (en) | 2018-07-24 | 2018-07-24 | A kind of matrix LED distance light optical system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844036A (en) * | 2018-07-24 | 2018-11-20 | 常州星宇车灯股份有限公司 | A kind of matrix LED distance light optical system |
| CN108844036B (en) * | 2018-07-24 | 2024-04-19 | 常州星宇车灯股份有限公司 | Matrix type LED high beam optical system |
-
2018
- 2018-07-24 CN CN201821171389.6U patent/CN208606108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844036A (en) * | 2018-07-24 | 2018-11-20 | 常州星宇车灯股份有限公司 | A kind of matrix LED distance light optical system |
| CN108844036B (en) * | 2018-07-24 | 2024-04-19 | 常州星宇车灯股份有限公司 | Matrix type LED high beam optical system |
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