CN102410490A - Lens and light source module - Google Patents

Lens and light source module Download PDF

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Publication number
CN102410490A
CN102410490A CN2010102890156A CN201010289015A CN102410490A CN 102410490 A CN102410490 A CN 102410490A CN 2010102890156 A CN2010102890156 A CN 2010102890156A CN 201010289015 A CN201010289015 A CN 201010289015A CN 102410490 A CN102410490 A CN 102410490A
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CN
China
Prior art keywords
lens
light source
exiting surface
light
plane
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Granted
Application number
CN2010102890156A
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Chinese (zh)
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CN102410490B (en
Inventor
张秀萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Kai Management Consulting Co ltd
Original Assignee
Foxsemicon Integrated Technology Shanghai Inc
Foxsemicon Integrated Technology Inc
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Priority to CN 201010289015 priority Critical patent/CN102410490B/en
Publication of CN102410490A publication Critical patent/CN102410490A/en
Application granted granted Critical
Publication of CN102410490B publication Critical patent/CN102410490B/en
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Abstract

The invention relates to a lens, which comprises an incident plane and a first emergent plane, wherein the first emergent plane is a convex curved surface and is opposite to the incident plane. The first emergent plane and the incident plane form a convex lens part. The lens further comprises a second emergent plane, wherein the second emergent plane is opposite to the incident plane and is a coarse plane, and the coarse plane enables the light which is emitted from the second emergent plane to have a larger divergence angle. The invention further relates to a light source module which is provided with the lens.

Description

Lens and light source module
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; Big multiple light courcess, like light emitting diode, discharge lamp and Halogen lamp LED etc., emergent ray all have the bigger angle of divergence; If will realize remote illumination; Generally need a condenser lens be set in these light source fronts, reduce the angle of divergence of its light, make its light concentrate near the outgoing of optical axis of condenser lens.But at some product, in flashlight or car light etc., a part of light of both having hoped light source can be realized the illumination of remote areas, hopes 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 let light source realize the illumination of remote areas, can let a part of light of light source realize the lens of the illumination in zone nearby again and adopt the light source module of these lens.
A kind of lens comprise the incidence surface and first exiting surface, and this first exiting surface is a convex surface and relative with said incidence surface.Said first exiting surface and said incidence surface are formed convex lens portions.Said lens further comprise second exiting surface, and this second exiting surface is relative with said incidence surface, and this second exiting surface is a matsurface, and this matsurface can make from the light of the second exiting surface outgoing has the bigger angle of divergence.
A kind of light source module comprises light source and lens.These lens comprise the incidence surface and first exiting surface, and this first exiting surface is a convex surface and relative with said incidence surface.Said first exiting surface and said incidence surface are formed convex lens portions.Said lens further comprise second exiting surface, and this second exiting surface is relative with said incidence surface, and this second exiting surface is a matsurface, and this matsurface can make from the light of the second exiting surface outgoing has the bigger angle of divergence.Said light source is arranged on incidence surface one side of said lens.
Said first exiting surface and incidence surface are formed a convex lens portions, and this convex lens portions can be concentrated to the light on it light source irradiation to the optical axis direction near convex lens portions, to be used for realizing the illumination of remote areas; Said second exiting surface can carry out scattering with the light that shines on it, to be used for realizing the illumination in zone nearby.So, said lens can let a part of light of light source realize the illumination of remote areas, can let a part of light of light source realize the illumination in zone nearby again.
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 among Fig. 1 is along the cutaway view of II-II direction among Fig. 1.
The main element symbol description
Light source module 100
Light source 10
Lens 20
Incidence surface 21
First exiting surface 22
Second exiting surface 23
Joint face 24
Bulge loop 25
The specific embodiment
Below will combine accompanying drawing that the present invention is done further detailed description.
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.Said light source 10 can be a kind of in light emitting diode, discharge lamp and the Halogen lamp LED etc.
Said lens 20 comprise incidence surface 21, first exiting surface 22 relative with said incidence surface 21 and second exiting surface 23 and the joint face 24 that is connected first exiting surface 22 and second exiting surface 23.
Said incidence surface 21 can be convex surface, concave surface or plane.In this embodiment, said incidence surface 21 is a convex surface.
Said first exiting surface 22 is a convex surface, and itself and said incidence surface 21 are formed a convex lens portions.In this embodiment; Said convex lens portions has an optical axis O; And have a focus that is positioned at said incidence surface 21 1 sides, said light source 10 is arranged on this along, thereby makes the light of warp first exiting surface 22 outgoing be roughly directional light; So, can reduce the angle of divergence of first exiting surface, 22 emergent raies greatly.
Said second exiting surface 23 is positioned at said first exiting surface, 22 1 sides; It is a matsurface; This matsurface can make from the light of second exiting surface, 23 outgoing has the bigger angle of divergence, and this light with bigger 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 this embodiment, said second exiting surface 23 is a serrated face.Said second exiting surface 23 perpendicular to the area of the projection on the plane of said optical axis O less than said first exiting surface 22 at area perpendicular to the projection on the plane of said optical axis O.
Said joint face 24 can be with reflecting to optical axis O direction to the light on it from the lens internal radiation, to be used for the remote areas illumination.24 reflections of said joint face can be reached through coating reflectance coating above that from the ability of the light of lens internal radiation on it, or utilize total reflection principle to reach.In this embodiment; Be coated with on the said joint face 24 and be coated with reflectance coating; This reflectance coating on the one hand can be with reflecting to optical axis O direction to the light on it from the lens internal radiation, and it can reflex to second exiting surface, 23 some light to the outgoing of optical axis O direction away from optical axis direction and be used for the illumination in zone nearby on the other hand.Corner dimension between said joint face 24 and the optical axis O can be used for controlling the light distribution in zone nearby, and in this embodiment, said joint face 24 is parallel to said optical axis O.
In this embodiment, said lens 20 peripheries also are formed with a bulge loop 25, and this bulge loop 25 can supply the fixing structure of lens 20 to control when lens 20 install and fix.In addition, said first exiting surface 22, second exiting surface 23 and joint face 24 are being formed a circle perpendicular to the projection on the plane of optical axis O.
In this embodiment, said first exiting surface 22 is formed a convex lens portions with incidence surface 21, and this convex lens portions can shine light on it near optical axis O direction set, to be used for realizing the illumination of remote areas with light source 10; Said second exiting surface 23 can carry out scattering with the light that shines on it, to be used for realizing the illumination in zone nearby.So, said lens 20 can let a part of light of light source 10 realize the illumination of remote areas, can let a part of light of light source 10 realize the illumination in zone nearby again.
It is 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 the protection domain that all should belong to claim of the present invention with distortion.

Claims (10)

1. lens; Comprise the incidence surface and first exiting surface, this first exiting surface is a convex surface and relative with said incidence surface, it is characterized in that: said first exiting surface and said incidence surface are formed convex lens portions; Said lens further comprise second exiting surface; This second exiting surface is relative with said incidence surface, and this second exiting surface is a matsurface, and this matsurface can make from the light of the second exiting surface outgoing has the bigger angle of divergence.
2. lens as claimed in claim 1 is characterized in that: said incidence surface is a convex surface.
3. lens as claimed in claim 1 is characterized in that: said second exiting surface is a serrated face.
4. lens as claimed in claim 1 is characterized in that: said lens also comprise a joint face between first exiting surface and second exiting surface, this joint face can reflected illumination light on it.
5. lens as claimed in claim 4 is characterized in that: said joint face is parallel with the optical axis of said convex lens portions.
6. lens as claimed in claim 4 is characterized in that: be coated with on the said joint face and be coated with reflectance coating.
7. lens as claimed in claim 1 is characterized in that: said lens periphery also is formed with a bulge loop.
8. a light source module comprises that light source reaches like each described lens of claim 1 to 7, and said light source is arranged on incidence surface one side of said lens.
9. light source module as claimed in claim 8 is characterized in that: said light source is located at the along of the convex lens portions of said lens.
10. light source module as claimed in claim 8 is characterized in that: said light source is a light emitting diode.
CN 201010289015 2010-09-21 2010-09-21 Lens and light source module Active CN102410490B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010289015 CN102410490B (en) 2010-09-21 2010-09-21 Lens and light source module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010289015 CN102410490B (en) 2010-09-21 2010-09-21 Lens and light source module

Publications (2)

Publication Number Publication Date
CN102410490A true CN102410490A (en) 2012-04-11
CN102410490B CN102410490B (en) 2013-08-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103378277A (en) * 2012-04-20 2013-10-30 展晶科技(深圳)有限公司 Lens and light-emitting diode packaging structure with same
CN103672728A (en) * 2012-09-13 2014-03-26 林万炯 Lens, LED module and lighting system using LED module
CN103851546A (en) * 2012-11-30 2014-06-11 深圳市海洋王照明工程有限公司 Light source structure and runway alarm light with same
CN104048193A (en) * 2013-03-14 2014-09-17 深圳市邦贝尔电子有限公司 LED (light emitting diode) lamp bead

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060083002A1 (en) * 2004-10-14 2006-04-20 Teruo Koike Lighting device
CN101105272A (en) * 2007-02-12 2008-01-16 吴娟 LED road lamp and its lens
CN101144863A (en) * 2007-10-16 2008-03-19 李旭亮 Secondary optical lens
CN101440928A (en) * 2007-11-19 2009-05-27 胡晓兵 Free curved surface lens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060083002A1 (en) * 2004-10-14 2006-04-20 Teruo Koike Lighting device
CN101105272A (en) * 2007-02-12 2008-01-16 吴娟 LED road lamp and its lens
CN101144863A (en) * 2007-10-16 2008-03-19 李旭亮 Secondary optical lens
CN101440928A (en) * 2007-11-19 2009-05-27 胡晓兵 Free curved surface lens

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103378277A (en) * 2012-04-20 2013-10-30 展晶科技(深圳)有限公司 Lens and light-emitting diode packaging structure with same
CN103378277B (en) * 2012-04-20 2015-11-18 展晶科技(深圳)有限公司 Lens and there is the package structure for LED of this kind of lens
CN103672728A (en) * 2012-09-13 2014-03-26 林万炯 Lens, LED module and lighting system using LED module
CN103672728B (en) * 2012-09-13 2017-09-08 赛尔富电子有限公司 Lens, LED modules and the illuminator using the LED modules
CN103851546A (en) * 2012-11-30 2014-06-11 深圳市海洋王照明工程有限公司 Light source structure and runway alarm light with same
CN103851546B (en) * 2012-11-30 2017-07-14 深圳市海洋王照明工程有限公司 Light-source structure and the runway alert lamp containing the light-source structure
CN104048193A (en) * 2013-03-14 2014-09-17 深圳市邦贝尔电子有限公司 LED (light emitting diode) lamp bead

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