CN201359257Y - Reflection-type efficient LED optical lens - Google Patents
Reflection-type efficient LED optical lens Download PDFInfo
- Publication number
- CN201359257Y CN201359257Y CNU2009200360270U CN200920036027U CN201359257Y CN 201359257 Y CN201359257 Y CN 201359257Y CN U2009200360270 U CNU2009200360270 U CN U2009200360270U CN 200920036027 U CN200920036027 U CN 200920036027U CN 201359257 Y CN201359257 Y CN 201359257Y
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- China
- Prior art keywords
- light
- optical lens
- led
- highly effective
- reflecting type
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- Expired - Fee Related
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- 230000003287 optical effect Effects 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 16
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 8
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 210000002683 foot Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A reflection-type efficient LED optical lens belongs to the technical field of semiconductor illumination. A concave pit is formed in the middle of the bottom surface of a translucent material body; the wall of the concave pit forms a light incoming surface; top surface of the translucent material body corresponding to the periphery of the light incoming surface forms a light outcoming surface; a complete ring of inclined surface is arranged along the edges of the light incoming surface and the light outcoming surface; a positioning wall used for positioning an LED light source is arranged at the bottom surface at the periphery of the concave pit; a support foot is arranged on the inclined surface at the periphery of the concave pit near the positioning wall; a positioning column is arranged on the bottom surface of the support foot; the inclined surface, the input light surface and the light outcoming surface form the optical part of the lens; the positioning wall, the support foot and the positioning column form the mounting part of the lens; and the optical part and the mounting part form a lens body. By utilizing the optical lens, the utility model has the advantages that secondary light distribution can be conducted on scattered rays emitted by the LED light source, and a part of rays can be reflected, thereby improving the light extraction efficiency of the LED and changing the distributed optical system of the optical field of the LED efficiently, enabling the illumination intensity distribution of the illuminated area of a pavement to be uniform, and enabling the illuminating effect to be good.
Description
Technical field
The utility model relates to a kind of reflecting type highly effective LED optical lens that is used for road illuminating lamp, belongs to technical field of semiconductor illumination.
Background technology
In recent years, along with the develop rapidly of lighting engineering industry, semiconductor lighting (LED) has plurality of advantages such as high brightness, low energy consumption, long service life, environmental protection with it, just is being widely used in the every field of illuminating industry.
Road lighting occupies great ratio in illuminating industry, annual power consumption is huge, popularization therein seems too impatient to wait to semiconductor lighting (LED) as energy-conserving product, energy-saving potential is huge, whole world manufacturer in the majority all actively researching and developing and promoting, multiple LED road illuminating lamp occurred at present on the market.
Because led light source belongs to spot light, cause present LED road illuminating lamp, effectively range of exposures is little, Illumination Distribution is inhomogeneous, has the part light fixture to adopt reflector that the light that led light source sent is reflected and spreads now on the market, can effectively enlarge the light area, and the light orientation that led light source can be sent projects the demand zone, but Illumination Distribution is inhomogeneous, middle light intensity edge a little less than, the dark space is obvious between two lamps.
The utility model content
The purpose of this utility model is the shortcoming that overcomes above-mentioned prior art, and a kind of light efficiency height is provided, and Illumination Distribution is even, the reflecting type highly effective LED optical lens that light distribution effect is good.
The purpose of this utility model is achieved in that reflecting type highly effective LED optical lens, 7 middle parts, bottom surface at a light transmissive material body are provided with pit, the hole wall of pit constitutes incidence surface 4, the end face of the light transmissive material body of corresponding incidence surface 4 peripheries is an exiting surface 1, be provided with whole circle inclined-plane 6 along incidence surface 4 and exiting surface 1 edge, be provided with the location wall 3 of location led light source 8 on the bottom surface 7 around the pit, be provided with feet 2 on the inclined-plane 6 near location wall 3 around pit, the feet bottom surface is provided with reference column 5.
Lens are made of jointly opticator and mounting portion, and inclined-plane 6, incidence surface 4 and exiting surface 1 constitute opticator, and location wall 3, feet 2 and reference column 5 constitute the mounting portion.Opticator has independent use characteristic, and the shape of the mounting portion that is mated is different and different according to 8 assembling forms of led light source in the light fixture.
Described inclined-plane 6 is for making the minute surface with reflection characteristic of mirror process.The reflection of the direct directive of the light portion that led light source 8 sends inclined-plane, part reflects away, and part reflexes on the inclined-plane 6 through exiting surface 1, reflects away again.
Described exiting surface 1 is made of rounding off between each curved surface for protruding curved surface two above free form surfaces.
Described incidence surface 4 is an inner sunken face, is made up of an above free form surface.
Described location wall 3 is the arc surface of corresponding led light source 8 base wall, and the porch is provided with chamfering, is convenient to led light source 8 and packs into, and root is rounded down, and prevents to locate wall 3 fractures.
Described light transmissive material body is optical grade PMMA or optical grade PC light transmissive material.The incidence surface 4 of the reflecting type highly effective LED optical lens of employing optical grade PMMA or the machine-shaping of optical grade PC light transmissive material and exiting surface 1 are the shiny surface through polishing.
The utility model is rational in infrastructure, science, simple, manufactures easily, and result of use is good.Utilize optical unit that the disperse light that led light source sends is carried out secondary light-distribution, effectively promote LED light extraction efficiency, change the optical system of the optical field distribution of LED, make the irradiation area Illumination Distribution even, good illumination effect.The light transmissive material body adopts light transmissive materials such as optical grade PMMA or PC, and incidence surface 4 and exiting surface 1 are all through being finished to shiny surface, the light transmittance height.The utility model not only can effectively enlarge the light area, the light orientation that led light source is sent evenly projects the demand zone, overcome existing light fixture and adopted reflector that the light that led light source sent is reflected and spread the deficiency that exists, more helped applying of LED road illuminating lamp.
Description of drawings
Fig. 1 is a positive perspective view of the present utility model.
Fig. 2 is a back side of the present utility model perspective view.
Fig. 3 is a front view of the present utility model.
Fig. 4 is an A-A cutaway view among Fig. 3.
Fig. 5 is a B-B cutaway view among Fig. 3.
Fig. 6 is the light source bright dipping schematic diagram of section shown in Figure 4.
Fig. 7 is the light source bright dipping schematic diagram of section shown in Figure 5.
Fig. 8 is single light source of the utility model and lens polar coordinates distribution curve flux figure.
Fig. 9 is single light source of the utility model and lens rectangular co-ordinate distribution curve flux figure.
Among the figure: 1 exiting surface, 2 feets, 3 location walls, 4 incidence surfaces, 5 reference columns, 6 inclined-planes, 7 bottom surfaces, 8LED light source.
The specific embodiment
To shown in Figure 8, adopt optical grade PMMA or optical grade PC light transmissive material body (for example clear glass or transparent plastic) to make the moulding reflecting type highly effective LED optical lens as Fig. 1.
7 middle parts, bottom surface at a light transmissive material body are provided with pit, and the hole wall of pit constitutes incidence surface 4, and incidence surface 4 is an inner sunken face, is made of an above free form surface.The end face of the light transmissive material body of corresponding incidence surface 4 peripheries is an exiting surface 1, and exiting surface 1 is made of plural free form surface for protruding curved surface, slick and sly connection transition between each curved surface.Along incidence surface 4 and exiting surface 1 edge whole circle inclined-plane 6 is set, inclined-plane 6 is the minute surface with reflection characteristic through mirror process.The reflection of the direct directive of the light portion that led light source 8 sends inclined-plane, part reflects away, and part reflexes on the inclined-plane 6 through exiting surface 1, reflects away again.On bottom surface 7, around pit, the location wall 3 of locating led light source 8 is set, face corresponding to led light source 8 base wall on the wall 3 of location is an arc surface, the top of location wall is that the porch that led light source 8 pedestals are packed into is provided with chamfering, being convenient to led light source 8 packs into, root is rounded down, and prevents to locate wall 3 fractures.On the inclined-plane 6 near location wall 3 (lens vertically) around the pit two feets 2 are set, feet 2 bottom surfaces are provided with reference column 5.
Constitute the opticator of optical unit by bottom surface 7, incidence surface 4 and exiting surface 1, location wall 3, feet 2 and reference column 5 constitute the mounting portion of lens, opticator and mounting portion constitute reflecting type highly effective LED optical lens jointly, optical unit is fixed on the wiring board of encapsulated LED light source 8 because of led light source 8 snaps in the location wall 3, there are two locating holes at the wiring board two ends, the reference column 5 on the corresponding optical unit.
Claims (7)
1, a kind of reflecting type highly effective LED optical lens, it is characterized in that, middle part, bottom surface (7) at a light transmissive material body is provided with pit, the hole wall of pit constitutes incidence surface (4), the end face of the light transmissive material body that corresponding incidence surface (4) is peripheral is exiting surface (1), be provided with whole circle inclined-plane (6) along incidence surface (4) and exiting surface (1) edge, on the bottom surface (7) around the pit, be provided with the location wall (3) of location led light source (8), be provided with feet (2) on the inclined-plane (6) near location wall (3) around pit, the feet bottom surface is provided with reference column (5).
2, reflecting type highly effective LED optical lens according to claim 1 is characterized in that, described inclined-plane (6) are for making the minute surface with reflection characteristic of mirror process.
3, reflecting type highly effective LED optical lens according to claim 1 is characterized in that, described exiting surface (1) is made of rounding off between each curved surface for protruding curved surface two above free form surfaces.
4, reflecting type highly effective LED optical lens according to claim 1 is characterized in that described incidence surface (4) is an inner sunken face, is made of an above free form surface.
5, reflecting type highly effective LED optical lens according to claim 1 is characterized in that described location wall (3) is the arc surface of corresponding led light source (8) base wall, and the porch is provided with chamfering, and root is rounded down.
6, reflecting type highly effective LED optical lens according to claim 1 is characterized in that described light transmissive material body is optical grade PMMA or optical grade PC light transmissive material.
7, reflecting type highly effective LED optical lens according to claim 1 is characterized in that, described incidence surface (4) and exiting surface (1) are the shiny surface through polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200360270U CN201359257Y (en) | 2009-03-03 | 2009-03-03 | Reflection-type efficient LED optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200360270U CN201359257Y (en) | 2009-03-03 | 2009-03-03 | Reflection-type efficient LED optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359257Y true CN201359257Y (en) | 2009-12-09 |
Family
ID=41425021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200360270U Expired - Fee Related CN201359257Y (en) | 2009-03-03 | 2009-03-03 | Reflection-type efficient LED optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359257Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261577A (en) * | 2010-05-31 | 2011-11-30 | 旭丽电子(广州)有限公司 | Light emitting diode lamp tube |
| US8646941B1 (en) | 2010-06-14 | 2014-02-11 | Humanscale Corporation | Lighting apparatus and method |
| CN103791271A (en) * | 2012-10-31 | 2014-05-14 | 隆达电子股份有限公司 | light emitting device |
-
2009
- 2009-03-03 CN CNU2009200360270U patent/CN201359257Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261577A (en) * | 2010-05-31 | 2011-11-30 | 旭丽电子(广州)有限公司 | Light emitting diode lamp tube |
| US8646941B1 (en) | 2010-06-14 | 2014-02-11 | Humanscale Corporation | Lighting apparatus and method |
| CN103791271A (en) * | 2012-10-31 | 2014-05-14 | 隆达电子股份有限公司 | light emitting device |
| CN103791271B (en) * | 2012-10-31 | 2015-11-18 | 隆达电子股份有限公司 | light emitting device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20170303 |