CN202581126U - Led light source module and lens thereof - Google Patents
Led light source module and lens thereof Download PDFInfo
- Publication number
- CN202581126U CN202581126U CN 201220192259 CN201220192259U CN202581126U CN 202581126 U CN202581126 U CN 202581126U CN 201220192259 CN201220192259 CN 201220192259 CN 201220192259 U CN201220192259 U CN 201220192259U CN 202581126 U CN202581126 U CN 202581126U
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- Prior art keywords
- lens
- pyramid
- light source
- led light
- shaped
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- 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.)
- Expired - Fee Related
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- 229920000515 polycarbonate Polymers 0.000 description 1
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Images
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- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The embodiment of the utility model discloses an LED light source module and a lens thereof. The first side surface of the lens is provided with a concave pit which is recessed into the lens to contain a light source, and the wall surface of the concave pit forms the incident surface of the lens; the second side surface of the lens, which is connected with the first side surface, is an externally convex smooth curved surface, and the externally convex smooth curved surface forms the exit surface of the lens; the first side surface also forms a reflecting surface reflecting light rays to the exit surface around the concave pit; and the reflecting surface is together formed by the conical wall surfaces of a plurality of pyramid-shaped recesses recessed into the lens from the first side surface. With the lens disclosed by the embodiment of the utility model, the light emitted to the first side surface is reflected to the second side surface from various angles to be emitted out in such a way that the technical means of forming the reflecting surface reflecting the light rays to the exit surface on the first side surface around the concave pit and together forming the reflecting surface through the conical wall surfaces of the plurality of pyramid-shaped recesses recessed into the lens from the first side surface is adopted, and therefore, the technical effect of uniform and consistent light emitting is achieved.
Description
Technical field
The utility model relates to optical technical field, relates in particular to a kind of led light source module and lens thereof.
Background technology
Light emitting diode (Light Emitting Diode, LED) low in energy consumption because of having, the life-span is long, volume is little and characteristic such as brightness height has been widely applied to many fields.
LED light source module can be divided into two kinds of straight-down negative and side-light types by the difference of the distributing position of its semiconductor light-emitting elements LED; And the LED light source module of existing straight-down negative improves light utilization through lenticule is set above LED; Said lenticular bottom surface is smooth and be similar to plane mirror; Cause the reflection angle of internal light single, there is the uneven defective of bright dipping in light reflected after exit facet penetrates.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of lens of bright dipping uniformity are provided.
The further technical problem to be solved of the utility model embodiment is, a kind of led light source module of bright dipping uniformity is provided.
In order to solve the problems of the technologies described above; The utility model embodiment has proposed a kind of lens; First side of said lens is provided with to the pit of lens internal recess with ccontaining light source; The hole wall of pit constitutes the plane of incidence of lens, and second side that is connected in first side of lens is the smooth surface of evagination, and said smooth surface constitutes the exit facet of lens; Said first side also is formed with the reflecting surface of light reflection to exit facet around said pit, and said reflecting surface is made up of a plurality of awl walls that cave in to the pyramid-shaped of lens internal recess from first side jointly.
Further, the pyramid-shaped depression is tetrapyamid shape or triangular taper.
Further, the depression of the pyramid-shaped on said first side is a plurality of concentric ring-shaped arrangements.
Further, be arranged in pyramid-shaped concave shape in the same annulus and measure-alike, and big more from the floor space of the pyramid-shaped depression of distance of center circle in big more donut.
Further, the recessed deep equality of the depression of the pyramid-shaped in each donut.
Further, first side around evenly be provided with a plurality of legs.
Further, it is recessed also to be the spherical crown shape to the lens middle part in the middle part of the said smooth surface.
Further, said smooth surface is the axisymmetric curved surface in center.
Correspondingly, the utility model embodiment also provides a kind of led light source module, comprises led light source and covers in the outside aforesaid lens of led light source.
The led light source module of the utility model embodiment and the beneficial effect of lens thereof are: also form the reflecting surface of light reflection to exit facet around said pit through being employed in first side; The technological means that said reflecting surface is made up of a plurality of awl walls that cave in to the pyramid-shaped of lens internal recess from first side jointly; Thereby the light of directive first side is reflexed to second side and penetrates from all angles, reach the technique effect of bright dipping uniformity.
Description of drawings
Fig. 1 is the plan structure sketch map of the lens of the utility model embodiment.
Fig. 2 is the structural representation of another angle of the lens of the utility model embodiment.
Fig. 3 be the utility model embodiment lens look up structural representation.
Fig. 4 is the structural representation of another angle of the lens of the utility model embodiment.
Fig. 5 is the generalized section of Fig. 1 along the I-I direction.
Fig. 6 is the light path sketch map of the led light source module of the utility model embodiment.
The specific embodiment
Please refer to Fig. 1 ~ Fig. 5, the utility model embodiment provides a kind of lens, roughly is hemispherical, has a central shaft oo ', is processed by transparent material, and this material can be polypropylene acid formicester, polycarbonate or this acid propylene of carbon acetate.Said lens comprise first side 10 and second side 20 that is connected in first side 10.
Evenly be provided with a plurality of legs 15 around first side 10, leg 15 is used for lens are fixed to the correspondence position of circuit board.Leg 15 can be 2～5, and in this embodiment, leg 15 is preferably 3.
The utility model embodiment also provides a kind of led light source module that uses said lens; The led light source module is used for backlight or lighting; Comprise led light source 30 and cover in the outside aforesaid lens of led light source 30; Particularly, be equipped with the led light source 30 with its coupling in the pit 11, led light source 30 also is positioned on the central axis oo '.
Please refer to Fig. 6; When the light that sends from LED is incident upon first anti-/ plane of refraction 21 and second anti-/ plane of refraction 23 by the plane of incidence; Because the total reflection effect of first anti-/ plane of refraction 21 and second anti-/ plane of refraction 23 corresponding reflectings surface; The pyramid-shaped depression 13 that part anaclasis and going out, most of light are reflected onto 10, the first sides 10, first side just break up the light that reflects back and reflex to again first anti-/ plane of refraction 21 with second instead/plane of refraction 23 and penetrating; And said shape, size and the arrangement architecture of pyramid-shaped depression 13 make and are evenly distributed shadow-free through the light that first anti-/ plane of refraction 21 and second anti-/ plane of refraction 23 penetrates.Through test, the led light source module of the utility model embodiment can with the average intensity angle of flare θ of light emitting diode by original+/-60 ° be diffused into+/-70 °.
The above is the specific embodiment of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also are regarded as the protection domain of the utility model.
Claims (9)
1. lens; First side of said lens is provided with to the pit of lens internal recess with ccontaining light source; The hole wall of pit constitutes the plane of incidence of lens; Second side that is connected in first side of lens is the smooth surface of evagination, and said smooth surface constitutes the exit facet of lens, it is characterized in that; Said first side also is formed with the reflecting surface of light reflection to exit facet around said pit, and said reflecting surface is made up of a plurality of awl walls that cave in to the pyramid-shaped of lens internal recess from first side jointly.
2. lens as claimed in claim 1 is characterized in that, the pyramid-shaped depression is tetrapyamid shape or triangular taper.
3. lens as claimed in claim 1 is characterized in that, the pyramid-shaped depression on said first side is a plurality of concentric ring-shaped and arranges.
4. lens as claimed in claim 3 is characterized in that, are arranged in pyramid-shaped concave shape in the same annulus and measure-alike, and big more from the floor space of the pyramid-shaped depression of distance of center circle in big more donut.
5. lens as claimed in claim 4 is characterized in that, the recessed deep equality of the pyramid-shaped depression in each donut.
6. lens as claimed in claim 1 is characterized in that, evenly are provided with a plurality of legs around first side.
7. lens as claimed in claim 1 is characterized in that, it is recessed that said smooth surface middle part also is the spherical crown shape to the lens middle part.
8. lens as claimed in claim 7 is characterized in that, said smooth surface is the axisymmetric curved surface in center.
9. a led light source module comprises led light source and covers in the outside lens of led light source, it is characterized in that said lens are like each described lens in the claim 1 ~ 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192259 CN202581126U (en) | 2012-04-28 | 2012-04-28 | Led light source module and lens thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192259 CN202581126U (en) | 2012-04-28 | 2012-04-28 | Led light source module and lens thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202581126U true CN202581126U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220192259 Expired - Fee Related CN202581126U (en) | 2012-04-28 | 2012-04-28 | Led light source module and lens thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202581126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705775A (en) * | 2012-04-28 | 2012-10-03 | 深圳市兆驰股份有限公司 | Led light source module and lens thereof |
| CN105221982A (en) * | 2014-06-09 | 2016-01-06 | 三星电子株式会社 | Light source module, lighting device and illuminator |
-
2012
- 2012-04-28 CN CN 201220192259 patent/CN202581126U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705775A (en) * | 2012-04-28 | 2012-10-03 | 深圳市兆驰股份有限公司 | Led light source module and lens thereof |
| CN105221982A (en) * | 2014-06-09 | 2016-01-06 | 三星电子株式会社 | Light source module, lighting device and illuminator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160428 |