CN103123088A - Lens and light source module - Google Patents
Lens and light source module Download PDFInfo
- Publication number
- CN103123088A CN103123088A CN2011103679561A CN201110367956A CN103123088A CN 103123088 A CN103123088 A CN 103123088A CN 2011103679561 A CN2011103679561 A CN 2011103679561A CN 201110367956 A CN201110367956 A CN 201110367956A CN 103123088 A CN103123088 A CN 103123088A
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- Prior art keywords
- lens
- exiting surface
- light
- light source
- joint face
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Abstract
The invention relates to a lens. The lens comprises an light inlet surface and a first light outlet surface, wherein the first light outlet surface is a convex curved surface and is opposite to the light inlet surface, a convex lens part is formed by the first light outlet surface and the light inlet surface, the first light outlet surface is provided with a first edge, the lens further comprises a second light outlet surface and a connection surface, the second light outlet surface is located on one side of the first edge of the first light outlet surface, the connection surface connects the second light outlet surface with the first light outlet surface, the connection surface faces towards the second light outlet surface, and the second light outlet surface and the connection surface are both rough surfaces which enable light emerging from the second light outlet surface and the connection surface to be large in divergence angle. The invention further relates to a light source module provided with the lens.
Description
Technical field
The present invention relates to optical field, relate in particular to a kind of lens and have the light source module of these lens.
Background technology
At present, large multiple light courcess, as light emitting diode, discharge lamp and Halogen lamp LED etc., emergent ray all have the larger angle of divergence, if realize long distance illumination, generally need to a condenser lens be set in these light sources front, reduce the angle of divergence of its light, make its light concentrate near the outgoing optical axis of condenser lens.But at some product, in flashlight or car light etc., a part of light of both having wished light source can be realized the illumination of remote areas, wishes that again a part of light of light source can be realized the illumination of ground region nearby.
Summary of the invention
In view of this, be necessary to provide a kind of a part of light that can either allow light source realize the illumination of remote areas, can allow again a part of light of light source realize the lens of the illumination in zone nearby and adopt the light source module of these lens.
A kind of lens comprise incidence surface and the first exiting surface, and this first exiting surface is convex surface and relative with described incidence surface, and this first exiting surface and incidence surface form a convex lens portions.Described the first exiting surface has a first side.Described lens also comprise the second exiting surface of first side one side that is positioned at the first exiting surface and connect the joint face of this second exiting surface and the first exiting surface.This joint face is towards described the second exiting surface.Described the second exiting surface and joint face are matsurface, and this matsurface can make from the light of the second exiting surface and joint face outgoing has the larger angle of divergence.
A kind of light source module comprises light source and lens.Described lens comprise incidence surface and the first exiting surface, and this first exiting surface is convex surface and relative with described incidence surface, and this first exiting surface and incidence surface form a convex lens portions.Described the first exiting surface has a first side.Described lens also comprise the second exiting surface of first side one side that is positioned at the first exiting surface and connect the joint face of this second exiting surface and the first exiting surface.This joint face is towards described the second exiting surface.Described the second exiting surface and joint face are matsurface, and this matsurface can make from the light of the second exiting surface and joint face outgoing has the larger angle of divergence.Described light source is arranged on incidence surface one side of described lens.
Described the first exiting surface and incidence surface form a convex lens portions, and this convex lens portions can be concentrated to the light on it light source irradiation to close optical axis direction, to be used for realizing the illumination of remote areas; Described the second exiting surface and joint face can carry out scattering with the light that shines on it, to be used for realizing the illumination in zone nearby.So, described lens can allow a part of light of light source realize the illumination of remote areas, can allow again a part of light of light source realize the illumination in zone nearby.
Description of drawings
Fig. 1 is the schematic perspective view of the light source module that provides of embodiment of the present invention.
Fig. 2 is that light source module in Fig. 1 is along the cutaway view of II-II direction in Fig. 1.
The main element symbol description
| The |
100 |
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10 |
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20 |
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21 |
| The |
22 |
| The second |
23 |
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24 |
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25 |
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221 |
The following specific embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
Below with reference to the drawings, the present invention is described in further detail.
See also Fig. 1 and Fig. 2, the light source module 100 that embodiment of the present invention provides comprises light source 10 and lens 20.Described light source 10 can be a kind of in light emitting diode, discharge lamp and Halogen lamp LED etc.Described light source module 100 can be used in the products such as car light.
Described lens 20 comprise incidence surface 21, the first exiting surface 22, the second exiting surface 23 and connect the joint face 24 of the first exiting surface 22 and the second exiting surface 23.Described the first exiting surface 22 and the second exiting surface 23 are oppositely arranged with described incidence surface 21.
Described incidence surface 21 can be convex surface, concave surface or plane.In present embodiment, described incidence surface 21 is a concave surface.
Described the first exiting surface 22 is a convex surface, itself and described incidence surface 21 form a convex lens portions, this convex lens portions be used for to be assembled the light that sends from light source 10, and the light that planoconvex lens section assembles has the less angle of divergence, can be used for realizing the illumination of remote areas.When described light source module 100 is used for car light, can be used for the illumination of car dead ahead and both sides, dead ahead through the light of the first exiting surface 22 outgoing.Described convex lens portions has an optical axis O and a focus that is positioned at described incidence surface 21 1 sides.Described light source 10 can be arranged on this focus place, thereby makes the light through the first exiting surface 22 outgoing be roughly directional light, so, can greatly reduce the angle of divergence of the first exiting surface 22 emergent raies.Described the first exiting surface 22 has a first side 221.
Described the second exiting surface 23 is positioned at first side 221 1 sides of the first exiting surface 22, it is a matsurface, this matsurface can make from the light of the second exiting surface 23 outgoing has the larger angle of divergence, and this light with larger angle of divergence can be used to realize the illumination in zone nearby.In addition, because matsurface emergent ray angle is mixed and disorderly, its emergent ray Luminance Distribution can be more even.In present embodiment, described the second exiting surface 23 is a serrated face.When described light source module 100 was used for car light, this second exiting surface 23 can be located at the first exiting surface 22 near a side on ground, so, can be used to realize the illumination of ground region nearby from the light of the second exiting surface 23 outgoing.
In present embodiment, described the second exiting surface 23 perpendicular to the area of the projection on the plane of described optical axis O less than described the first exiting surface 22 at the area perpendicular to the projection on the plane of described optical axis O, thereby can make more light that light source 10 sends can be used to carry out the illumination of remote areas.
Described joint face 24 is towards described the second exiting surface 23, and it is a matsurface, and this matsurface can make from the light of joint face 24 outgoing has the larger angle of divergence, and this light with larger angle of divergence can be used to realize the illumination in zone nearby.In addition, because matsurface emergent ray angle is mixed and disorderly, its emergent ray Luminance Distribution can be more even.In present embodiment, described joint face 24 is a serrated face.When described light source module 100 was used for car light, this joint face 24 can be located at the first exiting surface 22 near a side on ground, so, can be used to realize the illumination of ground region nearby from the light of joint face 24 outgoing.In present embodiment, described joint face 24 is roughly parallel to described optical axis O.Described the first exiting surface 22, the second exiting surface 23 and joint face 24 are forming a circle perpendicular to the projection on the plane of optical axis O.
In present embodiment, described lens 20 peripheries also are formed with a bulge loop 25, and this bulge loop 25 can be controlled by the fixing structure of confession lens 20 when lens 20 are installed fixedly.
In present embodiment, described the first exiting surface 22 forms a convex lens portions with incidence surface 21, and this convex lens portions can shine light source 10 light on it near in optical axis O direction set, to be used for realizing the illumination of remote areas; Described the second exiting surface 23 and joint face 24 can carry out scattering with the light that shines on it, to be used for realizing the illumination in zone nearby.So, described lens 20 can allow a part of light of light source 10 realize the illumination of remote areas, can allow again a part of light of light source 10 realize the illumination in zone nearby.
Be understandable that, for the person of ordinary skill of the art, can make change and the distortion that other various pictures are answered by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of claim of the present invention.
Claims (10)
1. lens, comprise incidence surface and the first exiting surface, this first exiting surface is convex surface and relative with described incidence surface, this first exiting surface and incidence surface form a convex lens portions, it is characterized in that: described the first exiting surface has a first side, described lens also comprise the second exiting surface of first side one side that is positioned at the first exiting surface and connect the joint face of this second exiting surface and the first exiting surface, this joint face is towards described the second exiting surface, described the second exiting surface and joint face are matsurface, this matsurface can make from the light of the second exiting surface and joint face outgoing has the larger angle of divergence.
2. lens as claimed in claim 1, it is characterized in that: described incidence surface is concave surface.
3. lens as claimed in claim 1 is characterized in that: described lens are used for car light, and described the second exiting surface is positioned at the first exiting surface near a side on ground.
4. lens as claimed in claim 1 is characterized in that: described the second exiting surface perpendicular to the area of the projection on the plane of the optical axis of described convex lens portions less than described the first exiting surface at the area perpendicular to the projection on the plane of described optical axis.
5. lens as claimed in claim 1 is characterized in that: described lens are used for car light, and described joint face is positioned at the first exiting surface near a side on ground.
6. lens as claimed in claim 1 is characterized in that: described the first exiting surface, the second exiting surface and joint face are forming a circle perpendicular to the projection on the plane of described convex lens portions optical axis.
7. lens as claimed in claim 1, it is characterized in that: described lens periphery also is formed with a bulge loop.
8. a light source module, comprise light source and lens as described in claim 1 to 7 any one, and described light source is arranged on incidence surface one side of described lens.
9. light source module as claimed in claim 8, it is characterized in that: described light source is located at the focus place of the convex lens portions of described lens.
10. light source module as claimed in claim 8, it is characterized in that: described light source is light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103679561A CN103123088A (en) | 2011-11-18 | 2011-11-18 | Lens and light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103679561A CN103123088A (en) | 2011-11-18 | 2011-11-18 | Lens and light source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103123088A true CN103123088A (en) | 2013-05-29 |
Family
ID=48454165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103679561A Pending CN103123088A (en) | 2011-11-18 | 2011-11-18 | Lens and light source module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103123088A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895336A (en) * | 2015-10-27 | 2017-06-27 | 斯坦雷电气株式会社 | Diffusion luminous intensity distribution optical system and lamps apparatus for vehicle |
| CN110375262A (en) * | 2019-08-15 | 2019-10-25 | 嘉善声光电子有限公司 | A kind of illumination light distribution system of bicycle lamp and bicycle lamp |
-
2011
- 2011-11-18 CN CN2011103679561A patent/CN103123088A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895336A (en) * | 2015-10-27 | 2017-06-27 | 斯坦雷电气株式会社 | Diffusion luminous intensity distribution optical system and lamps apparatus for vehicle |
| CN110375262A (en) * | 2019-08-15 | 2019-10-25 | 嘉善声光电子有限公司 | A kind of illumination light distribution system of bicycle lamp and bicycle lamp |
| CN110375262B (en) * | 2019-08-15 | 2024-05-24 | 嘉善声光电子有限公司 | Lighting and light distribution system of bicycle lamp and bicycle lamp |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130529 |