CN104566202A - Lens and light source module employing same - Google Patents
Lens and light source module employing same Download PDFInfo
- Publication number
- CN104566202A CN104566202A CN201310471523.XA CN201310471523A CN104566202A CN 104566202 A CN104566202 A CN 104566202A CN 201310471523 A CN201310471523 A CN 201310471523A CN 104566202 A CN104566202 A CN 104566202A
- Authority
- CN
- China
- Prior art keywords
- lens
- light source
- light
- structural
- micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a lens which is used for adjusting light emitted by a light source. The lens comprises a light-incoming surface, a light-exiting surface and a bottom surface, wherein the light-incoming surface sinks from the bottom surface to the interior of the lens; the light-exiting surface is arranged above the light-incoming surface; a plurality of microstructures are formed in the light-exiting surface and are used for diverging the positive light emitted by the light source. The invention also provides a light source module using the lens.
Description
Technical field
The present invention relates to a kind of lens and apply the light source module of these lens.
Background technology
Compared to traditional light emitting source, light emitting diode (Light Emitting Diode, LED) there is the advantages such as lightweight, volume is little, it is low to pollute, the life-span is long, it is as a kind of novel light emitting source, applied more and more widely, such as, in backlight module, light emitting diode is applied in a large number at present.
In backlight module, usually the light emitting diode of some is installed in side or the bottom of light guide plate, utilizes light emitting diode to realize the illumination of light guide plate.But limited and its forward light intensity of the rising angle of light emitting diode is much larger than side direction light intensity, backlight module bright dipping can be caused so uneven, thus occur bright blanking bar and luminous point.
Summary of the invention
In view of this, be necessary to provide that a kind of rising angle is larger, more uniform lens of luminous intensity and apply the light source module of these lens.
A kind of lens, it adjusts for the light sent light source.Described lens comprise incidence surface, exiting surface and bottom surface, described incidence surface caves in lens interior from bottom surface, described exiting surface is positioned at the top of incidence surface, and described exiting surface is formed with multiple micro-structural, and this micro-structural is used for dispersing the forward light that light source sends.
A kind of light source module, it comprises light source and above-mentioned lens.
In above-mentioned lens and light source module, the exiting surface of lens is formed with multiple micro-structural, the forward light that light source sends can incide in this micro-structural, these micro-structurals can play disperse function to the forward light of light source, thus while weakening the central area light intensity of light source, increase side direction light intensity and rising angle, so, after the adjustment of the rays pass through lens that light source sends, rising angle is larger, luminous intensity is more even.
Accompanying drawing explanation
Fig. 1 is the sectional view of the light source module in embodiment of the present invention.
Fig. 2 is the perspective view of the lens of light source module in Fig. 1.
Fig. 3 is the inversion perspective view of the lens in Fig. 2.
Fig. 4 is the sectional views of the lens in Fig. 2 along IV-IV direction.
Fig. 5 is the enlarged drawing at the V place of lens in Fig. 2.
Main element symbol description
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 1, a kind of light source module 100 that embodiment of the present invention provides comprises lens 10 and is arranged at the light source 20 in these lens 10.
Please then consult Fig. 2 to Fig. 5, described lens 10 are roughly in a cylindrical shape, and it comprises incidence surface 11, exiting surface 12, bottom surface 13 and side 14.Described bottom surface 13 is a circular flat, and its center forms a groove 15 to lens 10 inner recess, and the inner surface of this groove 15 forms described incidence surface 11.Described incidence surface 11 is the optical axis coincidence of a curved surface, its axis and lens 10.
Described exiting surface 12 correspondence is positioned at the top of described bottom surface 13, and it comprises the plane 121 of the circle being positioned at central authorities and is positioned at the cambered surface 122 of this plane 121 periphery.Described plane 121 is positioned at the top of incidence surface 11, and it is centrally located on the optical axis of described lens 10.The central area of described plane 121 forms multiple micro-structural 121a, and the plurality of micro-structural 121a is positioned at directly over incidence surface 11, disperses for the light sent light source 20.Described each micro-structural 121a is roughly in a hemispheric projection, and it is given prominence to towards away from incidence surface 11 direction.In the present embodiment, the radius of each micro-structural 121a is 0.1mm, spacing between any two adjacent microstructures 121a is 0.05mm, multiple micro-structural 121a with the center of described plane 121 for outwards dispersing distribution in the center of circle, one has 4 layers, the quantity of every one deck micro-structural 121a is respectively 1,6,12,18(refers to Fig. 5).Described cambered surface 122 is bent downwardly extension gradually by the periphery of plane 121.Described plane 121 is in smoothing junction with described cambered surface 122.
The edge perpendicular of described side 14 from bottom surface 13 upwards extends and is connected to the periphery of the cambered surface 122 of exiting surface 12.This side 14 is cylindric, and its center of circle is positioned on the optical axis of lens 10.
Described light source 20 is arranged in the groove 15 of described lens 10, the optical axis coincidence of its central shaft and lens 10.In the present embodiment, described light source 20 is light emitting diode.
Please then consult Fig. 1, described light source module 100 in use, the light that light source 20 sends enters into lens 10 through incidence surface 11, wherein the forward light of light source 20 is on the micro-structural 121a of the exiting surface 12 of lens 10, these micro-structural 121a can play disperse function to the forward light of light source 20, thus while weakening the central area light intensity of light source 20, increase side direction light intensity and rising angle, so, after the adjustment of the rays pass through lens 10 that light source 20 sends, rising angle is larger, luminous intensity is more even.
Be understandable that, can also packaging body be filled in the groove 15 of lens 10, and cover light source 20, to protect light source 20 from the impact such as dust, steam.
Be understandable that, for the person of ordinary skill of the art, the change and distortion that other various picture answers can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. lens, it adjusts for the light sent light source, it is characterized in that: described lens comprise incidence surface, exiting surface and bottom surface, described incidence surface caves in lens interior from bottom surface, described exiting surface is positioned at the top of incidence surface, described exiting surface is formed with multiple micro-structural, and this micro-structural is used for dispersing the forward light that light source sends.
2. lens as claimed in claim 1, is characterized in that: described incidence surface is the optical axis coincidence of a curved surface, its axis and described lens.
3. lens as claimed in claim 1, is characterized in that: described exiting surface comprises the plane that is positioned at central authorities and by the reclinate cambered surface of the periphery of this plane.
4. lens as claimed in claim 3, is characterized in that: described multiple micro-structural is formed in the central area of described plane, and are positioned at directly over described incidence surface.
5. lens as claimed in claim 4, is characterized in that: described each micro-structural is a hemispheric projection, and it is given prominence to towards away from incidence surface direction.
6. lens as claimed in claim 5, it is characterized in that: the radius of described each micro-structural is 0.1mm, the spacing between any two adjacent microstructures is 0.05mm.
7. lens as claimed in claim 1, is characterized in that: described lens also comprise the side at the edge connecting the edge of bottom surface and the cambered surface of exiting surface.
8. a light source module, it comprises light source and the lens as described in claim 1-7 any one.
9. light source module as claimed in claim 8, it is characterized in that: described incidence surface surrounds a groove, described light source is arranged in described groove.
10. light source module as claimed in claim 8, is characterized in that: the central shaft of described light source and the optical axis coincidence of described lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471523.XA CN104566202A (en) | 2013-10-11 | 2013-10-11 | Lens and light source module employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471523.XA CN104566202A (en) | 2013-10-11 | 2013-10-11 | Lens and light source module employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104566202A true CN104566202A (en) | 2015-04-29 |
Family
ID=53082908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310471523.XA Withdrawn CN104566202A (en) | 2013-10-11 | 2013-10-11 | Lens and light source module employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104566202A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543075A (en) * | 2017-08-31 | 2018-01-05 | 欧普道路照明有限公司 | Light source module group and lighting device |
| CN112833367A (en) * | 2019-04-02 | 2021-05-25 | 福建华佳彩有限公司 | Secondary lens structure with wide light ray emitting angle |
| TWI751045B (en) * | 2021-03-02 | 2021-12-21 | 達運精密工業股份有限公司 | Light emitting module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000024062A1 (en) * | 1998-10-21 | 2000-04-27 | Koninklijke Philips Electronics N.V. | Led module and luminaire |
| US20070258247A1 (en) * | 2006-05-02 | 2007-11-08 | Samsung Electronics Co., Ltd. | Light-emitting module capable of increasing dispersion diameter |
| CN102052628A (en) * | 2009-10-29 | 2011-05-11 | 富士迈半导体精密工业（上海）有限公司 | Optical lens |
| US20110280023A1 (en) * | 2010-05-12 | 2011-11-17 | Ching-Chuan Lee | Lens module for led lamp |
| WO2012063758A1 (en) * | 2010-11-12 | 2012-05-18 | シャープ株式会社 | Lighting device and display device |
| CN103883976A (en) * | 2012-12-24 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Optical lens and backlight module using same |
-
2013
- 2013-10-11 CN CN201310471523.XA patent/CN104566202A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000024062A1 (en) * | 1998-10-21 | 2000-04-27 | Koninklijke Philips Electronics N.V. | Led module and luminaire |
| US20070258247A1 (en) * | 2006-05-02 | 2007-11-08 | Samsung Electronics Co., Ltd. | Light-emitting module capable of increasing dispersion diameter |
| CN102052628A (en) * | 2009-10-29 | 2011-05-11 | 富士迈半导体精密工业（上海）有限公司 | Optical lens |
| US20110280023A1 (en) * | 2010-05-12 | 2011-11-17 | Ching-Chuan Lee | Lens module for led lamp |
| WO2012063758A1 (en) * | 2010-11-12 | 2012-05-18 | シャープ株式会社 | Lighting device and display device |
| CN103883976A (en) * | 2012-12-24 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Optical lens and backlight module using same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543075A (en) * | 2017-08-31 | 2018-01-05 | 欧普道路照明有限公司 | Light source module group and lighting device |
| CN112833367A (en) * | 2019-04-02 | 2021-05-25 | 福建华佳彩有限公司 | Secondary lens structure with wide light ray emitting angle |
| CN112833367B (en) * | 2019-04-02 | 2022-08-09 | 福建华佳彩有限公司 | Secondary lens structure with wide light ray emitting angle |
| TWI751045B (en) * | 2021-03-02 | 2021-12-21 | 達運精密工業股份有限公司 | Light emitting module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7866837B2 (en) | Skew light illumination lens device | |
| ATE557312T1 (en) | LIGHT EMITTING DEVICE | |
| US20150226907A1 (en) | Light guide module | |
| US10746915B2 (en) | Light guide plate, backlight module and display device | |
| US20150124459A1 (en) | Lens, LED Module and Illumination System Having Same | |
| CN106247279A (en) | Lens and light-emitting device thereof | |
| US20150184826A1 (en) | Light emitting device and backlight module employing same | |
| CN104566202A (en) | Lens and light source module employing same | |
| TW201514546A (en) | Lens and light source module with the lens | |
| US20150345735A1 (en) | Secondary optical element and light source module | |
| US10648625B2 (en) | Primary light distribution structure of directional light source | |
| CN104296066A (en) | Lens and power source module | |
| CN104344334A (en) | Lens and light source module using same | |
| US20150117031A1 (en) | Lens with discontinuous sub-light emerging faces | |
| CN105465739A (en) | Lens, light guide module with lens and lighting device | |
| CN104251461A (en) | Lens and light source module with same | |
| CN104037312A (en) | Lens and light emitting diode packaging structure using same | |
| TWM456453U (en) | Astigmatism-type lens and light emitting device with Astigmatism type lens | |
| TW201317643A (en) | Light guide plate and light emitting device having same | |
| CN103883931B (en) | Backlight module | |
| CN106500057A (en) | Lens and the light-emitting device with the lens | |
| RU2700182C2 (en) | Tubular light-emitting device | |
| TW201545384A (en) | Optical film and light source module | |
| CN104344332A (en) | Lens module and light source module comprising lens module | |
| US20140169035A1 (en) | Light guide plate and backlight module incorporating the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150429 |