CN201748334U - Lens mounted on LED lamp - Google Patents
Lens mounted on LED lamp Download PDFInfo
- Publication number
- CN201748334U CN201748334U CN2009201323423U CN200920132342U CN201748334U CN 201748334 U CN201748334 U CN 201748334U CN 2009201323423 U CN2009201323423 U CN 2009201323423U CN 200920132342 U CN200920132342 U CN 200920132342U CN 201748334 U CN201748334 U CN 201748334U
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- China
- Prior art keywords
- light
- lens
- led lamp
- utility
- projection
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- Expired - Fee Related
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides a lens mounted on an LED lamp, wherein a lens cover comprises a mango-shaped light-scattering protrusion positioned in the middle of the lens and light-concentrating edges positioned on the two sides of the light-scattering protrusion; the light-scattering protrusion comprises a light incidence surface on the inner wall and a light emitting surface on the outer wall; and the light-concentrating edges are shaped like convex straight lines. The utility model solves the problems of poor light-concentrating effect and non-uniform distribution of illuminating light in the prior art, controls the light distribution to form the rectangular light spot, ensures uniform illuminance within the efficient illumination zone, and substantially eliminates the stray light outside the illumination zone.
Description
Technical field
The utility model belongs to the LED lighting field, relates to a kind of LED lamp light-distribution lens.
Background technology
At present, the hot spot of existing lens projects is circular, and the illumination between center and the periphery differs bigger; In addition, need to throw light on a large scale on certain direction for some, and need the occasion of throwing light among a small circle on other direction, for example road lighting requires range of exposures wide on the road bearing of trend, good illumination effect, and the angle demand is big; And on vertical road direction, do not need the illumination of wide region, otherwise, both wasted electric energy, also can cause light pollution to surrounding environment.But LED for existing this round lens, can only be by on the road bearing of trend, establishing light fixture more, hot spot by adjacent light fixture superposes and reaches illumination requirement, even like this, also can make the illumination height under the light fixture, other regional illumination is low, causes the road surface average illumination low and the uniformity is poor, the illumination of this bright dark inequality directly influences traffic safety.
The utility model content
The technical problems to be solved in the utility model is how to fill up the above-mentioned blank of prior art, and the lens on a kind of LED lamp are provided.
Lens comprise astigmatism projection that is positioned at lens middle part, oval in shape and the optically focused limit that is positioned at astigmatic protruding both sides; Described astigmatic projection comprises that the plane of light incidence of internal face and the light of outside wall surface go out diffusing face; Described optically focused limit is the linearity of projection.
As optimization, the inboard of described astigmatism projection is provided with the pit of ccontaining LED, and the wall of pit is shaped as the semicircle sphere.
As optimization, described lens are PC or PMMA transparent material material.
Lens beneficial effect on the utility model LED lamp is as follows: after adopting this lens, it is wing that its distribution curve flux is bat, and each section is different incomplete same because of need, make hot spot rectangular and can rationally control distribution of light, and light extraction efficiency is greater than 75% in effective irradiation area, total light transmittance has farthest reduced the loss of light greater than 90%, and the light that light source is sent is fully utilized; In addition, illumination is very even in effective irradiation area.The hot spot edge clear, effectively irradiation area does not almost have veiling glare outward, does not have bad dazzle, can not cause light pollution; Can be widely used in tunnel illumination, road lighting, advertisement light projector etc. to the lighting field of specific (special) requirements is arranged in the field of illumination, as Tunnel Lamp, street lamp, Projecting Lamp etc.On original LED lamp lens basis, light extraction efficiency and rising angle have been increased.Same setting height(from bottom), the lamp spacing can increase, and more adapts to the requirement of wide-angle illumination.The ground overall brightness also promotes to some extent.
Description of drawings
Fig. 1 is the stereogram of the lens on a kind of LED light fixture of the utility model.
Fig. 2 is the vertical view of the lens on a kind of LED light fixture of the utility model.
Fig. 3 is the cutaway view along A-A line among Fig. 2.
Fig. 4 is the stereogram of the lens cap of the lens on a kind of LED light fixture of the utility model.
Fig. 5 is the upward view of the lens cap of the lens on a kind of LED light fixture of the utility model.
Fig. 6 is the vertical view of the lens cap of the lens on a kind of LED light fixture of the utility model.
Fig. 7 is the cutaway view along A-A line among Fig. 6.
Fig. 8 is the cutaway view along B-B line among Fig. 6.
Among the figure: 1 is that lens cap, 2 is that lens, 3 are that astigmatism projection, 4 is that optically focused limit, 5 is that pit 6 is that first side, 7 is that the plane of incidence, 8 is that the 3rd side, 9 is that the 4th side, 10 is reflecting surface.
The specific embodiment
The utility model provides the lens on a kind of LED lamp.This lens comprise astigmatism projection that is positioned at lens middle part, oval in shape and the optically focused limit that is positioned at astigmatic protruding both sides.The astigmatism projection comprises the plane of light incidence of internal face and the beam projecting face of outside wall surface.The utility model has been done optimal design for good light extraction efficiency and rising angle are arranged to the optically focused limit, makes the optically focused limit be the linearity of projection.
The inboard of astigmatism projection is provided with the pit of ccontaining LED, and the wall of pit is shaped as the semicircle sphere.
Lens are PC or PMMA transparent material material.
The utility model is implemented as shown in Figure 1 to Figure 3, the lens on this LED lamp, and 6 middle parts, first side are provided with a pit (lens cavity) 5, can be installed on the circle centre position of pit 5 for a LED, and the hole wall of pit 5 promptly constitutes the plane of incidence 7 of lens.First side 6, the 3rd side 8 and the 4th side 9 constitute exit facet, and lens first side 6 middle part arcs protrude and form the exit facet that is mango shape.The so-called oval elongate body shape that two ends are cambered surface that promptly is substantially, and two middle side parts of elongate body are recessed slightly to the inside, and the upper surface cambered surface is protruded, and, be provided with a circle with the fully reflecting surface 10 of light reflection to the 4th side 9 of exit facet around pit 5 on first side of lens, fully reflecting surface can be axial symmetry and asymmetrical structure.Lens preferably adopt the extraordinary transparent material of light transmission to make, as PC or PMMA.
Claims (3)
1. the lens on the LED lamp comprise astigmatism projection that is positioned at lens middle part, oval in shape and the optically focused limit that is positioned at astigmatic protruding both sides; Described astigmatic projection comprises the plane of light incidence of internal face and the beam projecting face of outside wall surface; It is characterized in that: described optically focused limit is the linearity of projection.
2. the lens on a kind of LED lamp according to claim 1 is characterized in that: the inboard of described astigmatism projection is provided with the pit of ccontaining LED, and the wall of pit is shaped as the semicircle sphere.
3. the lens on a kind of LED lamp according to claim 1 is characterized in that: described lens are PC or PMMA transparent material material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201323423U CN201748334U (en) | 2009-06-05 | 2009-06-05 | Lens mounted on LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201323423U CN201748334U (en) | 2009-06-05 | 2009-06-05 | Lens mounted on LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748334U true CN201748334U (en) | 2011-02-16 |
Family
ID=43583010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201323423U Expired - Fee Related CN201748334U (en) | 2009-06-05 | 2009-06-05 | Lens mounted on LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748334U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187509A (en) * | 2011-12-28 | 2013-07-03 | 华夏光股份有限公司 | Light emitting diode device |
| CN104421751A (en) * | 2013-08-22 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Light emitting diode (LED) assembly and backlight module with same |
| CN109427949A (en) * | 2017-08-24 | 2019-03-05 | 海迪科（苏州）光电科技有限公司 | High-voltage chip goes out optical assembly |
| CN109427948A (en) * | 2017-08-24 | 2019-03-05 | 海迪科（苏州）光电科技有限公司 | High-voltage chip light-emitting units |
| CN112325176A (en) * | 2020-12-15 | 2021-02-05 | 深圳市毅宁亮照明有限公司 | Lamp strip with stray light eliminating structure and stray light eliminating method thereof |
-
2009
- 2009-06-05 CN CN2009201323423U patent/CN201748334U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187509A (en) * | 2011-12-28 | 2013-07-03 | 华夏光股份有限公司 | Light emitting diode device |
| CN104421751A (en) * | 2013-08-22 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Light emitting diode (LED) assembly and backlight module with same |
| CN109427949A (en) * | 2017-08-24 | 2019-03-05 | 海迪科（苏州）光电科技有限公司 | High-voltage chip goes out optical assembly |
| CN109427948A (en) * | 2017-08-24 | 2019-03-05 | 海迪科（苏州）光电科技有限公司 | High-voltage chip light-emitting units |
| CN109427949B (en) * | 2017-08-24 | 2020-07-24 | 嘉兴敏德汽车零部件有限公司 | High-voltage chip light-emitting component |
| CN112325176A (en) * | 2020-12-15 | 2021-02-05 | 深圳市毅宁亮照明有限公司 | Lamp strip with stray light eliminating structure and stray light eliminating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zhu Weijun Document name: Notification to Make Rectification |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhuhai Green Lighting Technology Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhuhai Green Lighting Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20130605 |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhu Weijun Document name: Notification of Termination of Patent Right |