CN206669544U - A kind of projection-type optical lighting system for automobile lamp - Google Patents
A kind of projection-type optical lighting system for automobile lamp Download PDFInfo
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- CN206669544U CN206669544U CN201720191345.9U CN201720191345U CN206669544U CN 206669544 U CN206669544 U CN 206669544U CN 201720191345 U CN201720191345 U CN 201720191345U CN 206669544 U CN206669544 U CN 206669544U
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Abstract
It the utility model is related to a kind of projection-type optical lighting system for automobile lamp, it is made up of lens and light source two parts, lens are divided into the plane of incidence and exit facet, and the light that light source is sent is refracted into lens by the plane of incidence, straightline propagation refracts to road surface to exit facet, and by exit facet in lens；The plane of incidence is optical surface, including for forming the dead line face of "cut-off"line, and for controlling the free form surface of light path, the shape in dead line face determines according to the shape of the "cut-off"line of different illumination functions；The face shape of the free form surface determines that the face shape of the free form surface will cause the light after exit facet to approach horizontal class directional light directive road surface according to the face shape of the exit facet and the characteristics of luminescence of light source.The utility model part is less, and optical system assembling is simple, and accumulated error is small, stable performance, solves current illuminator because part is more, and assembling is complicated so that the problem of Performance of Optical System fluctuation is larger, and cost is higher.
Description
Technical field
It the utility model is related to car light technical field, the more particularly to optical system for forming "cut-off"line in car light
System, specifically a kind of projection-type optical lighting system for automobile lamp.
Background technology
The projection-type illuminator commonly used in automobile lamp, typically all includes light source, speculum, shadow shield and optical lens
Mirror.Speculum is elliposoidal, and the centre of luminescence of light source is arranged at the perifocus of ellipsoidal shaped mirror, the light warp that light source is sent
Converged at after crossing ellipsoidal shaped mirror reflection near the over focus of ellipsoidal shaped mirror, shadow shield is arranged at ellipsoidal shaped mirror
At over focus, its shape is consistent with required "cut-off"line shape, is formed finally by optical lens and ended with light and shade
The class parallel light light shape of line, the illumination light shape has but is not limited to lower beam illumination function, fog lamp function, corner lamp function
Deng.
It is near that one utility application of Application No. 201110307456.9 discloses a kind of projection-type LED automobile
Light lamp, including reflection shield, installation sheet, light-distribution lens, radiator and aluminium base, the inner surface of the reflector is with two Jiao
The ruled surface shape of point, the light-distribution lens are fixed on the front end face of the installation sheet, and the reflection shield is fixed on described
On the rear end face of installation sheet, the radiator is fixed on the rear end face of the installation sheet, and its upper surface covers the reflector
Opening, the aluminium base is fixed on the upper surface of the radiator, and an at least LEDs core is provided with the aluminium base
Piece, the LED chip are on the perifocus position of the ruled surface.
One utility application of Application No. 201510137921.7, it is remote to be related to a kind of projection-type LED automobile
Dipped headlight optical lighting system, including horizontally disposed lens carrier, LED light source and radiator, lens carrier left side are provided with
Convex lens, connecting plate is installed on the right side of lens carrier, the reflective of light reflection for LED light source is provided with connecting plate
Cup, radiator are connected on the right side of connecting plate, and LED light source is horizontally disposed on a heat sink, in reflector to convex lens reflection light
Region in be provided with the baffle plate of shield portions reflection light.
It can be seen that existing projection-type automobile dipped headlight, typically all forms "cut-off"line by using shadow shield.It is this
In optical system in addition to essential light source, it is also necessary to speculum, shadow shield, optical lens and some connection structures
Part, part is more, and assembling is complicated, and the accumulated error caused by the foozle of part is larger so that Performance of Optical System
Fluctuate larger, cost is also of a relatively high.
Utility model content
The purpose of this utility model is to provide a kind of projection-type optical lighting system for automobile lamp, the utility model
Projection-type optical lighting system be only made up of lens and light source, without speculum and shadow shield, part is less, optical system bulk cargo
With simple, accumulated error greatly reduces caused by foozle between part, stable performance, to solve current illuminator
Because part is more, assembling is complicated so that the problem of Performance of Optical System fluctuation is larger, and cost is higher.
To achieve the above object, scheme of the present utility model is：A kind of projection-type illumination optical system for automobile lamp
System, the projection-type optical lighting system are made up of lens and light source two parts, and the lens are divided into two light path control faces, i.e.,
The plane of incidence and exit facet, the light that the light source is sent are refracted into lens by the plane of incidence, the straightline propagation extremely outgoing in lens
Face, and refract to road surface by exit facet；
The plane of incidence is optical surface, including for forming the dead line face of "cut-off"line, and for controlling light path
Free form surface, the shape in the dead line face determines according to the shape of the "cut-off"line of different illumination functions；
The face shape of the free form surface is according to the face shape of the exit facet and the characteristics of luminescence determination of light source, the freedom
The face shape of curved surface will cause the light after exit facet to approach horizontal class directional light directive road surface.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, it is described go out
It is sphere or regular surface of revolution to penetrate face.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, it is described from
First free form surface and the second free form surface are included by curved surface, first free form surface is located at the lower section in dead line face, described
Second free form surface is located at the top in dead line face.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, if described
Projection-type optical lighting system is used for fog lamp and corner lamp illumination functions, then described dead line face is approximately horizontal plane.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, if described
Projection-type optical lighting system is used for lower beam illumination function, then described dead line face is that two to three planes connect into set angle
The dead line face connect.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, the light
The luminous coboundary in source is less than dead line face with dead line face in sustained height, or the luminous coboundary of the light source.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, if described
Projection-type optical lighting system is used for lower beam illumination function, the luminous coboundary of the light source and the lower horizontal face in dead line face
It is less than the lower horizontal face in dead line face in the luminous coboundary of sustained height, or the light source.
Further, according to the projection-type optical lighting system described in the utility model for automobile lamp, the light
After the light that source is sent injects the first free form surface, most of light is refracted into exit facet, and by exit facet directive road surface；
And a portion is refracted to the light in dead line face by the first free form surface upwards, because incidence angle is more than the angle of total reflection,
Dead line is totally reflected at face, then downwardly toward exit facet, so as to form "cut-off"line on road surface.
Further, it is described according to the projection-type optical lighting system described in the utility model for automobile lamp
Light source is LED luminescence chips.
The beneficial effect that the utility model reaches：Optical system of the present utility model is only made up of lens and light source, without
Speculum and shadow shield, simple in construction, so assembling is simple, accumulated error is smaller caused by foozle between part, optics
System is stable.The light efficiency of optical system is high, avoids absorption loss water of the speculum to luminous energy in traditional projection-type illuminator.
Brief description of the drawings
Fig. 1 is the theory of constitution figure of the utility model optical system；
Fig. 2-Fig. 4 is the schematic diagram that the utility model forms "cut-off"line；
Fig. 5 is light shape signal of the fog lamp function on vertical screen；
Fig. 6 is light shape signal of the low-beam function on vertical screen.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, projection-type optical lighting system of the present utility model is mainly made up of lens 1 and the two parts of light source 2, described
Lens 1 are divided to for two light path control faces of the plane of incidence and exit facet.The light that light source 2 is sent is refracted into lens 1 by the plane of incidence,
Straightline propagation refracts to road surface to exit facet 1d by exit facet 1d in lens 1.
The plane of incidence is optical surface, including for forming the dead line face 1a of "cut-off"line, for controlling light path
First free form surface 1b and cut with the second free form surface 1c, dead line face 1a shape according to the light and shade of different illumination functions
Only the shape of line determines.Such as Fig. 5, the "cut-off"line 3 of the illumination functions such as fog lamp and corner lamp is horizontal line, then dead line face 1a
Shape is close to plane；Such as Fig. 6, lower beam illumination function "cut-off"line 4 is generally two to three sections of broken lines, then dead line face 1a
It is shaped as the angled dead line face being formed by connecting of two to three planes.
The first free form surface 1b and face shape and light with the second free form surface 1c face shape according to the exit facet
The characteristics of luminescence determination in source, i.e.,：According to the known light-emitting area size of light source 2 and its position, and known exit facet 1d face
Shape, obtains the first free form surface 1b and the curvature direction with the second free form surface 1c at any point, the first free form surface 1b and
Determine that light source 2 is irradiated to the refraction angle of corresponding point position with the curvature direction at the second free form surface 1c each points, the refraction angle
Degree needs to meet that the shooting angle after exit facet reflects again is not higher than "cut-off"line position, the first free form surface 1b
And to cause the light after exit facet with the second free form surface 1c face shape to approach horizontal class directional light directive road surface.
The exit facet 1d is sphere or regular surface of revolution.
The preferred LED luminescence chips of light source 2, but it is not limited to LED luminescence chips.The luminous coboundary of light source 2 is with cutting
Only line face 1a is in sustained height, if dipped beam, is then off line face 1a lower horizontals face and the luminous coboundary of light source 2 and keeps
Sustained height, it is intended that the light that dead line face 1a is refracted to by the first free form surface 1b is all to inject upwards.
Such as Fig. 2-4, after the light that the light source 2 is sent injects free form surface 1b, most of light is refracted to exit facet
1d, and pass through exit facet 1d to approach horizontal class directional light directive road surface.And a portion is upward by free form surface 1b
Dead line face 1a light is refracted to, because incidence angle is more than the angle of total reflection, is totally reflected at the 1a of dead line face, then to
Lower directive exit facet 1d, so as to form "cut-off"line on road surface.
The luminous coboundary of the light source 2 can also be slightly above dead line face, the downward direct projection formed to dead line face
1a light is so mapped to road surface at a downward angle through superrefraction successor, so not influenceing the formation of "cut-off"line.
Optical system of the present utility model is only made up of lens and light source, simple in construction without speculum and shadow shield, institute
Simple to assemble, accumulated error is smaller caused by foozle between part, and optical system is stable.The light efficiency of optical system
Height, avoid absorption loss water of the speculum to luminous energy in traditional projection-type illuminator.
Claims (9)
- A kind of 1. projection-type optical lighting system for automobile lamp, it is characterised in that：The projection-type optical lighting system It is made up of lens and light source two parts, the lens are divided into two light path control faces, the i.e. plane of incidence and exit facet, the light source hair The light gone out is refracted into lens by the plane of incidence, and straightline propagation is to exit facet in lens, and passes through exit facet and refract to road surface；The plane of incidence is optical surface, including for forming the dead line face of "cut-off"line, and for control light path from By curved surface, the shape in the dead line face determines according to the shape of the "cut-off"line of different illumination functions；The face shape of the free form surface is according to the face shape of the exit facet and the characteristics of luminescence determination of light source, the free form surface Face shape to cause the light after exit facet to approach horizontal class directional light directive road surface.
- 2. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that the outgoing Face is sphere or regular surface of revolution.
- 3. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that the freedom Curved surface includes the first free form surface and the second free form surface, and first free form surface is located at the lower section in dead line face, and described Two free form surfaces are located at the top in dead line face.
- 4. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that if the throwing Penetrate formula optical lighting system and be used for fog lamp and corner lamp illumination functions, then described dead line face is approximately horizontal plane.
- 5. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that if the throwing Penetrate formula optical lighting system and be used for lower beam illumination function, then described dead line face is that two to three planes connect into set angle The dead line face formed.
- 6. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that the light source Luminous coboundary and dead line face be less than dead line face in sustained height, or the luminous coboundary of the light source.
- 7. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that if the throwing Penetrate formula optical lighting system and be used for lower beam illumination function, the luminous coboundary of the light source exists with the lower horizontal face in dead line face Sustained height, or the light source luminous coboundary be less than dead line face lower horizontal face.
- 8. the projection-type optical lighting system according to claim 3 for automobile lamp, it is characterised in that the light source After the light sent injects the first free form surface, most of light is refracted into exit facet, and by exit facet directive road surface；And A portion is refracted to the light in dead line face by the first free form surface upwards, because incidence angle is more than the angle of total reflection, is being cut Only it is totally reflected at line face, then downwardly toward exit facet, so as to form "cut-off"line on road surface.
- 9. the projection-type optical lighting system according to claim 1 for automobile lamp, it is characterised in that described light Source is LED luminescence chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191345.9U CN206669544U (en) | 2017-03-01 | 2017-03-01 | A kind of projection-type optical lighting system for automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191345.9U CN206669544U (en) | 2017-03-01 | 2017-03-01 | A kind of projection-type optical lighting system for automobile lamp |
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| Publication Number | Publication Date |
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| CN206669544U true CN206669544U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720191345.9U Active CN206669544U (en) | 2017-03-01 | 2017-03-01 | A kind of projection-type optical lighting system for automobile lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062123A (en) * | 2017-03-01 | 2017-08-18 | 上海小糸车灯有限公司 | A kind of projection-type optical lighting system for automobile lamp |
| CN110094685A (en) * | 2019-06-12 | 2019-08-06 | 佛山市升阳光学科技有限公司 | A kind of lighting device with a variety of working conditions |
-
2017
- 2017-03-01 CN CN201720191345.9U patent/CN206669544U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062123A (en) * | 2017-03-01 | 2017-08-18 | 上海小糸车灯有限公司 | A kind of projection-type optical lighting system for automobile lamp |
| CN107062123B (en) * | 2017-03-01 | 2023-04-14 | 华域视觉科技(上海)有限公司 | Projection type optical lighting system for automobile lamp |
| CN110094685A (en) * | 2019-06-12 | 2019-08-06 | 佛山市升阳光学科技有限公司 | A kind of lighting device with a variety of working conditions |
| CN110094685B (en) * | 2019-06-12 | 2024-04-26 | 佛山市升阳光学科技有限公司 | Lighting device with multiple working states |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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 |
|
| CP01 | Change in the name or title of a patent holder |