CN102003679A - Lens for LED lamp - Google Patents
Lens for LED lamp Download PDFInfo
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- CN102003679A CN102003679A CN 201010614105 CN201010614105A CN102003679A CN 102003679 A CN102003679 A CN 102003679A CN 201010614105 CN201010614105 CN 201010614105 CN 201010614105 A CN201010614105 A CN 201010614105A CN 102003679 A CN102003679 A CN 102003679A
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- lens
- led lamp
- rib shape
- shape projection
- light
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Abstract
The invention discloses a lens for a light emitting diode (LED) lamp. The longitudinal section of the lens is arched; a group of prismatic bulges are formed on the concave face at the arched top of the lens, so illuminating rays form a similarly rectangular light spot, and the ground irradiation uniformity of the lamp is improved; furthermore, an excellent design is provided for a rectangular light distribution place, so that light distribution without angles is realized, light loss is reduced and glare is effectively prevented. The lens of the invention effectively enhances the light transmittance, the light intensity and the illumination uniformity of the LED lamp, prolongs the service life of the lamp, and simultaneously reduces illumination energy consumption.
Description
Technical field
The invention discloses a kind of lens, particularly a kind of LED lamp lens.
Background technology
Lens are to be the optical element of piece with the surface that transparency material is made.Bringing into play important effect in fields such as astronomy, military affairs, traffic, medical science, art.
The LED lens are divided into lens, secondary lens, can be made by silica gel, PMMA, PC or glass.Light source is depended in the design of LED lens, and its chip structure of the great power LED of different brands and packaged type, light characteristic etc. all can be distinguished to some extent.Its design process is quite complicated, need to utilize as optical design software such as Code V, ZEMAX, TracePro, ASAP, LighTools and mechanical modeling softwares such as Pro/E, UG, SOLIDWORKS and design and optics emulation, continue to optimize and obtain corresponding optical lens.
The LED lens all have strict requirement as the product of optical grade to light transmission, heat endurance, density, refractive index uniformity, refractive index stability, water imbibition, turbidity, the highest long-term work temperature etc.Therefore, must be according to the material of actual selection lens.Selective light classes and grades in school PMMA can select optical grade PC if any special demand in principle.
Design and production process from above LED lens seem the simple LED lens, and from being designed into finished product, its requirement to software, hardware is all very high, and this has also caused on the market price variance of LED lens very big.From the rosy prospect that the LED illumination is popularized, lens are as the indispensable parts of LED lighting, and market prospects also will be become better and better.
And common LED lamp particularly all shows tangible deficiency at the aspects such as glare problem of design of light type and high-power illumination in light transmittance, light intensity, the illumination uniformity and service life.
Summary of the invention
Technical problem to be solved by this invention is, adopts common lens, can't solve glare problem and the light distribution effect under special photoenvironment and the uneven illumination of high-power illumination, especially needs the occasion of rectangular light spot.
The invention provides a kind of LED lamp lens at above problem, the vertical section of lens is an arch, and lens vault concave surface place is provided with one group of rib shape projection.The radian of lens, the thickness of eyeglass, and structure and the arrangement mode that should organize rib shape projection, all pass through careful optical design, this structure can effectively prevent dazzle, and make light form approximate rectangular hot spot, improved the ground irradiation uniformity of light fixture, more need the place of rectangle luminous intensity distribution that outstanding design is provided as road lighting etc.
As a kind of improvement of the present invention, lens adopt high borosilicate optical glass or the manufacturing of K9 optical glass, and its light transmittance reaches 96%, and optical property is good.And high borosilicate optical glass or 200 ℃ of high temperature of K9 optical glass ability are not because of the temperatures involved lens performance.
The present invention has improved light transmittance, light intensity, the illumination uniformity of LED and the service life of improving lamp effectively, has reduced the illumination energy consumption simultaneously to a great extent.
Description of drawings
Fig. 1 LED lamp lens front view;
Fig. 2 LED lamp lens vertical view;
Fig. 3 LED lamp lens upward view;
Fig. 4 LED lamp lens rib shape cutaway view.
Member among the figure is:
1, rib shape projection; 2, eyeglass.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand the following specific embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1: a kind of LED lamp lens, as shown in Figure 1, the vertical section of lens is an arch, and lens vault concave surface place is provided with one group of rib shape projection 1, rib shape projection 1 upper end cross section is a rectangle, the lower end is the multiaspect cone, and rib shape projection 1 is arranged along buttocks, is parallel to each other between the rib shape projection 1, observe described lens with depression angle, as Fig. 2, shown in Figure 3, the right and left that is shaped as that described rib shape projection 1 is arranged is parallel lines, and both sides are the quadrangle of evagination camber line up and down.The light that led chip sends behind rib shape projection 1 and eyeglass 2, generates rectangular light spot.Rib shape projection 1 can also effectively prevent dazzle, improves illumination uniformity.
Embodiment 2: a kind of LED lamp lens, and as shown in Figure 1, the vertical section of lens is an arch, lens vault concave surface place is provided with one group of rib shape projection 1, and rib shape projection 1 upper end cross section is a rectangle, and the lower end is the multiaspect cone, rib shape projection 1 is arranged along buttocks, is parallel to each other between the rib shape projection 1.As a kind of technological improvement of embodiment 1, described lens adopt high borosilicate optical glass or the manufacturing of K9 optical glass.High borosilicate optical glass or K9 optical glass are heat-resisting to reach 200 ℃, and 96% light transmittance at high temperature still can be arranged, and guarantees that LED lamp lens optical property is stable.
Embodiment 3: a kind of LED lamp lens, the vertical section of lens are arch, and lens vault concave surface place is provided with one group of rib shape projection 1, and rib shape projection 1 is arranged along buttocks, is parallel to each other between the rib shape projection 1.As a kind of technological improvement of embodiment 1, as shown in Figure 4, the cross section of rib shape projection 1 from the top to the bottom, all is a rectangle.Adopt this structure, reduced lens machine-shaping difficulty, improved yields.
The present invention has improved the service life of light transmittance, light intensity, the illumination uniformity and the lamp of LED effectively, has reduced the illumination energy consumption simultaneously to a great extent.In conjunction with breakthrough, make LED overcome the obstacle that marches street lighting market from the light source encapsulation to rectangular light spot.
Claims (8)
1. LED lamp lens, the vertical section of lens is an arch, it is characterized in that: there is one group of rib shape projection (1) at lens vault concave surface place.
2. LED lamp lens according to claim 1 is characterized in that: described lens adopt high borosilicate optical glass or the manufacturing of K9 optical glass.
3. LED lamp lens according to claim 1 is characterized in that: described rib shape projection (1) upper end cross section is a rectangle.
4. LED lamp lens according to claim 1 is characterized in that: described rib shape projection (1) lower end is the multiaspect cone.
5. LED lamp lens according to claim 1 is characterized in that: described rib shape projection (1) is arranged along buttocks, and being parallel to each other between the rib shape projection (1) is palisade.
6. LED lamp lens according to claim 1 is characterized in that: the cross section of described rib shape projection (1) from the top to the bottom, all is a rectangle.
7. LED lamp lens according to claim 1 is characterized in that: observe described lens with depression angle, the right and left that is shaped as that described rib shape projection (1) is arranged is parallel lines, and both sides are the quadrangle of evagination camber line up and down.
8. LED lamp lens according to claim 1 is characterized in that: observe described lens with depression angle, described rib shape projection (1) is arranged is shaped as circle, perhaps be ellipse, perhaps is polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010614105 CN102003679A (en) | 2010-12-30 | 2010-12-30 | Lens for LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010614105 CN102003679A (en) | 2010-12-30 | 2010-12-30 | Lens for LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003679A true CN102003679A (en) | 2011-04-06 |
Family
ID=43811259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010614105 Pending CN102003679A (en) | 2010-12-30 | 2010-12-30 | Lens for LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006352A (en) * | 2014-05-23 | 2014-08-27 | 上海理工大学 | Method for manufacturing multi-curved surface lens light distribution device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796171A (en) * | 1985-11-07 | 1989-01-03 | Robert Bosch Gmbh | Low beam or fog headlamp for motor vehicles |
| CN1571603A (en) * | 2004-05-09 | 2005-01-26 | 友达光电股份有限公司 | Organic light emitting display and manufacturing method thereof |
| CN201297567Y (en) * | 2008-11-25 | 2009-08-26 | 今日宏企业有限公司 | Improvement of luminous lighting body |
| CN201306626Y (en) * | 2008-12-05 | 2009-09-09 | 华能光电科技股份有限公司 | LBD lighting tube structure |
| US20100067230A1 (en) * | 2008-09-17 | 2010-03-18 | I Shou University | Light emitting diode lamp tube |
| JP3162824U (en) * | 2010-07-07 | 2010-09-16 | 均程 張 | LED light cover structure |
-
2010
- 2010-12-30 CN CN 201010614105 patent/CN102003679A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796171A (en) * | 1985-11-07 | 1989-01-03 | Robert Bosch Gmbh | Low beam or fog headlamp for motor vehicles |
| CN1571603A (en) * | 2004-05-09 | 2005-01-26 | 友达光电股份有限公司 | Organic light emitting display and manufacturing method thereof |
| US20100067230A1 (en) * | 2008-09-17 | 2010-03-18 | I Shou University | Light emitting diode lamp tube |
| CN201297567Y (en) * | 2008-11-25 | 2009-08-26 | 今日宏企业有限公司 | Improvement of luminous lighting body |
| CN201306626Y (en) * | 2008-12-05 | 2009-09-09 | 华能光电科技股份有限公司 | LBD lighting tube structure |
| JP3162824U (en) * | 2010-07-07 | 2010-09-16 | 均程 張 | LED light cover structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006352A (en) * | 2014-05-23 | 2014-08-27 | 上海理工大学 | Method for manufacturing multi-curved surface lens light distribution device |
| CN104006352B (en) * | 2014-05-23 | 2016-05-11 | 上海理工大学 | Manufacture the method for many toroidal lens light distribution device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110406 |