CN103453441B - A kind of concentrated packaged LED street lamp PC lens module - Google Patents
A kind of concentrated packaged LED street lamp PC lens module Download PDFInfo
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- CN103453441B CN103453441B CN201310331589.9A CN201310331589A CN103453441B CN 103453441 B CN103453441 B CN 103453441B CN 201310331589 A CN201310331589 A CN 201310331589A CN 103453441 B CN103453441 B CN 103453441B
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- lens
- street lamp
- led street
- curved surface
- packaged led
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The open a kind of concentrated packaged LED street lamp PC lens module of the present invention, comprise lens, described lens interior is provided with a cavity, the outer surface of described lens is made up of the left curved surface of the top-surface camber caved in, outwardly convex, right curved surface and front curve and straight back plane, and described top-surface camber, left curved surface, right curved surface, front curve are free form surface.Because the present invention adopts PC lens to replace bare glass street lamp lens, increasing peripheral tiltedly flat board and setting up concavo-convex micro-structural on oblique flat board simultaneously, the weight of lens can be alleviated, reduce costs, simplify production technology, promote utilization rate, the uniformity of LED street lamp illumination simultaneously, the effect of free from glare illumination can be reached.
Description
Technical field
The present invention relates to a kind of PC lens module of concentrated packaged LED street lamp.
Background technology
The lens that current all concentrated packaged high-power LED street lamps are arranged in pairs or groups are all use glass material to make, and the material of glass will be shaped, and needs the thickness of at least more than 10mm, and the size of raw bar material also can limit the size of lens.Due to above-mentioned restrictive condition, if the thickness of glass is too thick and light absorption can be caused excessive, weight increases; If the too little meeting of lens sizes causes optical look angle to expand, and easily produce larger dazzle because lens are too small.
Summary of the invention
Due to the problems referred to above of prior art, the present invention proposes, and it effectively can solve the problems referred to above of prior art.
The present invention solves the problem by the following technical programs:
A kind of concentrated packaged LED street lamp PC lens module, comprise lens, described lens interior is provided with a cavity, the outer surface of described lens is made up of the left curved surface of the top-surface camber caved in, outwardly convex, right curved surface and front curve and straight back plane, and described top-surface camber, left curved surface, right curved surface, front curve are free form surface.
Described cavity is set to a shape and is 1/4th ellipsoids and the major axis of this ellipsoid is parallel with the bottom surface of described lens.
The height of the bottom of described cavity top distance lens is greater than 40 millimeters.
The design of described free form surface meets Snell law and even light type (cos θ)
-3the setting of parameter.
Periphery bottom described lens to stretch the oblique flat board that formation one periphery is upturned to surrounding.
The bottom surface of described oblique flat board arranges irregular micro-structural.
The two-end thickness of described oblique flat board is less than the thickness at the middle part of described oblique flat board.
Because the present invention adopts PC lens to replace bare glass street lamp lens, increasing tiltedly dull and stereotyped and setting up concavo-convex micro-structural on oblique flat board simultaneously, the weight of lens can be alleviated, reduce costs, simplify production technology, promote utilization rate, the uniformity of LED street lamp illumination simultaneously, the effect of free from glare illumination can be reached.
Accompanying drawing explanation
Fig. 1 is the sectional view of lens of the present invention;
Fig. 2 is the structural representation of another embodiment of the present invention;
Fig. 3 is the profile of Fig. 2;
Fig. 4 is top view and the partial enlarged drawing of Fig. 2;
Fig. 5 A is intensity levels's distribution schematic diagram of the present invention;
Fig. 5 B is luminous intensity vertical distribution schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, describe the present invention in detail.
Shown in Figure 1, concentrated packaged LED street lamp PC lens module of the present invention, comprise lens 1, described lens 1 inside is provided with a cavity 11, the outer surface 12 of described lens is made up of the left curved surface of the top-surface camber caved in, outwardly convex, right curved surface and front curve and straight back plane, and described top-surface camber, left curved surface, right curved surface, front curve are free form surface.
The design of described free form surface meets Snell law and even light type (cos θ)
-3the setting of parameter.Light distribution required by utilization and calculate position and the tangent plane slope of curved surface, construction can go out free form surface, last just can construction free-form surface lens, and the design of free form surface is the lens curved surface being calculated needs by the light distribution needed, but not general optical design, use the mode Come construction lens of Tryanderror.
Described cavity is set to a shape and is 1/4th ellipsoids and the major axis of this ellipsoid is parallel with the bottom surface of described lens.Shown in Figure 1, the height H of the bottom of described cavity 11 top distance lens is greater than 40 millimeters, to guarantee that the lens of PC material will cause temperature too high and softening transform because of near LED.
See shown in Fig. 2 to Fig. 4, the periphery bottom described lens stretch that formation one periphery is upturned to surrounding oblique dull and stereotyped 2.This oblique bottom surface of dull and stereotyped 2 arranges irregular micro-structural 3.And the thickness at the two ends 21 and 22 of described oblique flat board is less than the thickness at the described oblique middle part of dull and stereotyped 23.
Shown in Figure 4.Oblique dull and stereotyped 2 and concavo-convex micro-structural 3 by ray guidance on oblique flat board, the effect of leaded light and bright dipping can be increased to reach the effect of full wafer luminescence.Meanwhile, due to the effect of free form surface, when penetrate light more than 70 degree time luminous intensity will drop quickly to zero, as shown in Figure 5A.
Material of the present invention is PC, also need to add uv-resistant material in the process that manufacture is shaping, the more existing glass of quality is gently a lot, can reduce the weight of lens module entirety, and reduce cost.
See Fig. 5 A and Fig. 5 B, for make use of the luminous intensity distribution in the horizontal and vertical directions of lens of the present invention, visible lens of the present invention can promote the illumination utilization rate of LED, and visual angle is expanded.
Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (6)
1. a concentrated packaged LED street lamp PC lens module, it is characterized in that: comprise lens, described lens interior is provided with a cavity, the outer surface of described lens is made up of the left curved surface of the top-surface camber caved in, outwardly convex, right curved surface and front curve and straight back plane, and described top-surface camber, left curved surface, right curved surface, front curve are free form surface, the periphery bottom described lens to stretch the oblique flat board that formation one periphery is upturned to surrounding.
2. concentrated packaged LED street lamp PC lens module according to claim 1, is characterized in that: described cavity is set to a shape and is 1/4th ellipsoids and the major axis of this ellipsoid is parallel with the bottom surface of described lens.
3. concentrated packaged LED street lamp PC lens module according to claim 1, is characterized in that: the height of the bottom of described cavity top distance lens is greater than 40 millimeters.
4. concentrated packaged LED street lamp PC lens module according to claim 1, is characterized in that: the design of described free form surface meets Snell law and even light type (cos θ)
-3the setting of parameter.
5. concentrated packaged LED street lamp PC lens module according to claim 1, is characterized in that: the bottom surface of described oblique flat board arranges irregular micro-structural.
6. concentrate packaged LED street lamp PC lens module according to claim 1 or 5, it is characterized in that: the two-end thickness of described oblique flat board is less than the thickness at the middle part of described oblique flat board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310331589.9A CN103453441B (en) | 2013-08-01 | 2013-08-01 | A kind of concentrated packaged LED street lamp PC lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310331589.9A CN103453441B (en) | 2013-08-01 | 2013-08-01 | A kind of concentrated packaged LED street lamp PC lens module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103453441A CN103453441A (en) | 2013-12-18 |
| CN103453441B true CN103453441B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310331589.9A Active CN103453441B (en) | 2013-08-01 | 2013-08-01 | A kind of concentrated packaged LED street lamp PC lens module |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876418A (en) * | 2009-12-14 | 2010-11-03 | 东莞市宏磊达电子塑胶有限公司 | Large-power LED street lamp lens |
| TW201200799A (en) * | 2010-06-25 | 2012-01-01 | Silitek Electronic Guangzhou | LED Lens |
| CN102537842A (en) * | 2012-01-16 | 2012-07-04 | 华中科技大学 | Deign method of light-type controllable lens with double freeform surfaces |
| CN103133989A (en) * | 2011-12-01 | 2013-06-05 | 西安金诺光电科技有限公司 | Anti-glare light-emitting diode (LED) lens |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006057731B4 (en) * | 2005-12-07 | 2015-10-08 | Koito Manufacturing Co., Ltd. | vehicle light |
| US20110235338A1 (en) * | 2010-03-29 | 2011-09-29 | Everlight Electronics Co., Ltd. | Light emitting device and lens thereof |
-
2013
- 2013-08-01 CN CN201310331589.9A patent/CN103453441B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876418A (en) * | 2009-12-14 | 2010-11-03 | 东莞市宏磊达电子塑胶有限公司 | Large-power LED street lamp lens |
| TW201200799A (en) * | 2010-06-25 | 2012-01-01 | Silitek Electronic Guangzhou | LED Lens |
| CN103133989A (en) * | 2011-12-01 | 2013-06-05 | 西安金诺光电科技有限公司 | Anti-glare light-emitting diode (LED) lens |
| CN102537842A (en) * | 2012-01-16 | 2012-07-04 | 华中科技大学 | Deign method of light-type controllable lens with double freeform surfaces |
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| Publication number | Publication date |
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| CN103453441A (en) | 2013-12-18 |
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Effective date of registration: 20151106 Address after: 523430, No. two, 15, Qu Ling Road, Dongguan Town, Liaobu, Guangdong Applicant after: Dongguan Kexiang Photoelectric Technology Co., Ltd. Address before: 330000, Nanchang hi tech Zone, Jiangxi three torch 189, Nanchang export processing zone Applicant before: Jiangxi Xingguan Photoelectric Co., Ltd. |
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