CN102235594A - Light-emitting diode (LED) light-emitting module - Google Patents
Light-emitting diode (LED) light-emitting module Download PDFInfo
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- CN102235594A CN102235594A CN2010101614214A CN201010161421A CN102235594A CN 102235594 A CN102235594 A CN 102235594A CN 2010101614214 A CN2010101614214 A CN 2010101614214A CN 201010161421 A CN201010161421 A CN 201010161421A CN 102235594 A CN102235594 A CN 102235594A
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Abstract
The invention relates to a light-emitting diode (LED) light-emitting module suitable for large-scale illumination. The conventional LED light-emitting module cannot meet the requirement of emitting light at a large angle in a three-dimensional range. The LED light-emitting module comprises a substrate provided with an LED, and is characterized in that: a lens is arranged outside the LED and is a rotating body which takes a central axis as a rotating shaft and is enclosed by curved surfaces formed by rotating curved edges; an emergent surface is formed on the central part of the upper end face of the lens; a fully reflecting surface is formed on the peripheral part of the upper end face of the lens; two concave mutually bent emergent surfaces are formed on the side wall of the lens; and a concave light ray incident surface is formed on the bottom surface of a body. The illumination range of the LED light-emitting module is effectively expanded, and an area covered by the fully reflecting surface can be changed when the lens is manufactured according to the requirement of the actual illumination range, so that the aim of changing the illumination range is fulfilled, and various illumination requirements are met.
Description
Technical field
The present invention relates to the LED technical field, be specifically related to a kind of LED light emitting module of illumination on a large scale that is applicable to.
Technical background
LED has advantages such as light efficiency height, life-span length, nontoxic no electromagnetic pollution, belongs to typical green illumination light source.The LED light fixture has begun to be used widely in fields such as commercial lighting, indoor and outdoor lighting, and it just progressively replaces incandescent lamp, Halogen lamp LED as the key lighting light source as a kind of light source efficiently.
LED light emitting module commonly used on the existing market comprises substrate, connect LED by control circuit on the substrate, the characteristics of luminescence of this class LED light emitting module is lambert's type, as shown in Figure 1, can be luminous in positive 90 ° and negative 90 ° of scopes (promptly 180 ° in luminous), the angle of divergence is 120 °.This class LED light emitting module can satisfy conventional lighting demand, but at special lighting field, as when being used for throwing light on the luminous bulb lamp of wide-angle in the three-dimensional scope of some needs, the Crystal lamp, above-mentioned LED light emitting module just can't satisfy lighting requirement.Another kind of LED light emitting module, at LED outer setting lens, these class lens only have the plane of incidence and exit facet, only play the optically focused effect usually, can not enlarge illumination range.
Summary of the invention
The present invention is directed to the defective that prior art exists, a kind of LED light emitting module is provided, can effectively increase the illumination range of LED, enlarge applicability, rational in infrastructure, easy to make.
For this reason, the present invention takes following scheme: a kind of LED light emitting module, comprise substrate, LED is installed on the substrate, it is characterized in that described LED is provided with lens outward, described lens are is rotating shaft with the central axis, rotate the rotary body that curved surface was surrounded that forms with bent limit, the upper surface central part of lens forms exit facet, outer part forms fully reflecting surface, and the sidewall of lens forms two exit facets that bend mutually that cave inward, and the bottom surface of described body forms the plane of light incidence of indent.On the lens upper surface, form a fully reflecting surface, make and reflex on the exit facet of lens both sides through this fully reflecting surface from the light of bottom surface incident, penetrate lens through exit facet again, the more part of light of this part ejaculation lens can be distributed in the negative direction area of space perpendicular to the lens centre axis, has effectively enlarged the illumination zone of LED light emitting module.
The exit facet of described lens upper surface is first plane of refraction, and the zone that described lens upper side wall links to each other with fully reflecting surface is second plane of refraction, and the zone that described lens lower wall links to each other with second plane of refraction is the third reflect face.Light reflects lens through first plane of refraction distribution of light the lens centre axis and with the area of space of central axis angle less than 45 °; The distribution of light that reflects lens through the 3rd plane of refraction perpendicular to the lens centre axis and with the area of space of central axis angle greater than 30 °.The light that reflects from first plane of refraction and third reflect face of light is guaranteed to be distributed within 0 ° to 180 ° region-wide like this, makes the light emitting module of this patent can satisfy conventional lighting demand.
Described first plane of refraction is an inner sunken face, and inner sunken face is compared the light that horizontal plane can make LED send and obtained better dispersion angle, and illumination zone is wider.
The central area sunken inside of described lens bottom surface becomes the semicircle sphere, can allow the luminous energy that LED sent all incide lens.
Apply minute surface coating on the outer surface of described fully reflecting surface, described minute surface coating is circular, and the zone applies minute surface coating between first plane of refraction and second plane of refraction, avoids making the part light refraction go out air owing to lens are aging and causes light to run off.
The material refractive index of described making lens is 1.3-1.7, and the material of described making lens is COC, PMMA, PC, transparent materials such as resin.
Beneficial effect of the present invention is embodied in: in the exterior arrangement of LED one piece of special lens, make a fully reflecting surface in the part of lens upper surface, after making the light that sends from LED by the fully reflecting surface reflection, plane of refraction from the lens both sides reflects again, the distribution of light of this part process reflection and refraction is at the negative direction area of space perpendicular to the lens centre axis, effectively enlarged the illumination zone of LED light emitting module, the angle of divergence of this class LED light emitting module can reach more than 270 °.According to the demand of actual illumination scope, also can when making lens, change the zone that fully reflecting surface covers, to reach the purpose that changes illumination range, adapt to all kinds of lighting demands.
Figure of description
Fig. 1 is the distribution curve flux figure of lambert's type LED;
Fig. 2 is the cross-sectional view of lens;
Fig. 3 is the perspective view of lens;
Fig. 4 is the structural representation of the embodiment of the invention;
Fig. 5 is the distribution curve flux figure of the embodiment of the invention;
Among the figure: 1. lens; 2.LED; 3. substrate; 4. central axis; 5. first plane of refraction; 6. second plane of refraction; 7. third reflect face; 8. fully reflecting surface; 9. bottom surface.
The specific embodiment
Below in conjunction with specification drawings and specific embodiments substantive distinguishing features of the present invention is further described.
As Fig. 2, LED light emitting module shown in Figure 3, mainly constitute by the substrate 3 of LED2, carrying control LED2, the control circuit and the radiating piece that connect LED2, LED2 is nested with lens 1 of being made by transparent materials such as COC, PMMA, PC or resins outward.Lens 1 are is rotating shaft with the central shaft, rotate the rotary body that curved surface was surrounded that forms with bent limit.Locate mutually with the top base shape of substrate 3 bottom surface of lens 4, so that install, be bearing on the substrate.The bottom surface 4 zone line sunken insides of lens 1 become the plane of incidence 9 of semicircle sphere.The upper surface central part of lens 1 forms exit facet, and outer part forms fully reflecting surface 8, and the outer surface of fully reflecting surface 8 applies minute surface coating, and minute surface coating is circular, and lens 1 sidewall forms the exit facet that caves inward.Wherein the exit facet of lens 1 upper surface is first plane of refraction 5, the zone that lens 1 upper side wall links to each other with fully reflecting surface 8 is second plane of refraction 6, the zone that lens 1 lower wall links to each other with second plane of refraction 6 is a third reflect face 7, and first plane of refraction 5 is an inner sunken face, the material range of refractive of making lens is 1.3 to 1.7, can pass through processes such as rapid shaping, injection moulding.
As shown in Figure 4, when actual illumination, the light P3 that LED2 sends all reflects from second plane of refraction 6 after fully reflecting surface 8 reflections.This part distribution of light that reflects from second plane of refraction 6 is at the negative direction area of space perpendicular to lens centre axis 4; Light P1, the P2 that LED2 reflects lens 1 through first plane of refraction 5 be distributed in lens centre axis 4 and with the area of space of central axis 4 angles less than 45 °; The light P4 that reflects lens 1 through the 3rd plane of refraction 7 be distributed in perpendicular to lens centre axis 4 and with the area of space of central axis 4 angles greater than 30 °.About 55% light process fully reflecting surface 8 reflexes to the negative direction area of space perpendicular to lens centre axis 4.As shown in Figure 5, the illumination range of this patent light emitting module has surpassed the illumination range of light emitting module commonly used for bearing 150 ° (being shown as 210 ° among the figure) to positive 150 ° of scopes.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought the protection domain of inventing.
Claims (7)
1. LED light emitting module, comprise substrate (3), substrate (3) is gone up LED (2) is installed, it is characterized in that the outer lens (1) that are provided with of described LED (2), described lens (1) be with central axis (4) be rotating shaft, the rotary body that curved surface was surrounded that forms with the rotation of bent limit, the upper surface central part of lens (1) forms exit facet, outer part forms fully reflecting surface (8), the sidewall of lens (1) forms the exit facet that caves inward, and the bottom surface (9) of described lens (1) forms the plane of light incidence of indent.
2. according to the described LED light emitting module of claim 1, the exit facet that it is characterized in that described lens (1) upper surface is first plane of refraction (5), the zone that described lens (1) upper side wall links to each other with fully reflecting surface (8) is second plane of refraction (6), and the zone that described lens (1) lower wall links to each other with second plane of refraction (6) is third reflect face (7).
3. according to the described LED light emitting module of claim 2, it is characterized in that described first plane of refraction (5) is an inner sunken face.
4. according to the described LED light emitting module of claim 1, it is characterized in that the central area sunken inside of described lens (1) bottom surfaces (9) becomes the semicircle sphere.
5. according to claim 1 or 3 described LED light emitting modules, it is characterized in that the outer surface of described fully reflecting surface (8) applies minute surface coating, described minute surface coating is circular.
6. according to the described LED light emitting module of claim 1, the material refractive index that it is characterized in that described making lens (1) is 1.3-1.7.
7. according to the described LED lens of claim 1, the material that it is characterized in that described making lens (1) is transparent materials such as COC, PMMA, PC, resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101614214A CN102235594A (en) | 2010-05-04 | 2010-05-04 | Light-emitting diode (LED) light-emitting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101614214A CN102235594A (en) | 2010-05-04 | 2010-05-04 | Light-emitting diode (LED) light-emitting module |
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| CN102235594A true CN102235594A (en) | 2011-11-09 |
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| CN2010101614214A Pending CN102235594A (en) | 2010-05-04 | 2010-05-04 | Light-emitting diode (LED) light-emitting module |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486267A (en) * | 2010-12-02 | 2012-06-06 | 辰峯光电股份有限公司 | Omnidirectional led lamp |
| CN102788268A (en) * | 2012-07-27 | 2012-11-21 | 厦门立达信光电有限公司 | LED bulb lamp |
| KR20130051849A (en) * | 2011-11-10 | 2013-05-21 | 엘지이노텍 주식회사 | Member for controlling luminous flux and display device having the same |
| CN104121545A (en) * | 2013-04-29 | 2014-10-29 | 胜华科技股份有限公司 | Optical lens and light source device |
| CN106062465A (en) * | 2014-03-04 | 2016-10-26 | 三菱电机株式会社 | Light source apparatus and lighting apparatus |
| CN106646727A (en) * | 2017-03-17 | 2017-05-10 | 京东方科技集团股份有限公司 | Transparent display device |
| CN108604055A (en) * | 2015-12-28 | 2018-09-28 | 球面光学有限公司 | Omnidirection refringent/reflection lens with odd item aspherical profile or poly-lens |
| CN110159968A (en) * | 2019-04-03 | 2019-08-23 | 苏州阿奎睿思机器人科技有限公司 | Industrial lighting system |
| CN112303594A (en) * | 2019-07-31 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical lens, light-emitting device and display |
| CN112303593A (en) * | 2019-07-31 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical lens, light-emitting device and display |
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| US20060262424A1 (en) * | 2005-05-23 | 2006-11-23 | Sekonix Co., Ltd. | Diffusion lens for diffusing LED light |
| CN101055907A (en) * | 2006-04-10 | 2007-10-17 | 中强光电股份有限公司 | Luminescence module |
| CN101655213A (en) * | 2008-08-21 | 2010-02-24 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode light source module |
| CN201731297U (en) * | 2010-05-04 | 2011-02-02 | 艾迪光电（杭州）有限公司 | LED light-emitting module |
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2010
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| US20060262424A1 (en) * | 2005-05-23 | 2006-11-23 | Sekonix Co., Ltd. | Diffusion lens for diffusing LED light |
| CN101055907A (en) * | 2006-04-10 | 2007-10-17 | 中强光电股份有限公司 | Luminescence module |
| CN101655213A (en) * | 2008-08-21 | 2010-02-24 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode light source module |
| CN201731297U (en) * | 2010-05-04 | 2011-02-02 | 艾迪光电（杭州）有限公司 | LED light-emitting module |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486267A (en) * | 2010-12-02 | 2012-06-06 | 辰峯光电股份有限公司 | Omnidirectional led lamp |
| KR20130051849A (en) * | 2011-11-10 | 2013-05-21 | 엘지이노텍 주식회사 | Member for controlling luminous flux and display device having the same |
| KR101878851B1 (en) * | 2011-11-10 | 2018-07-16 | 엘지이노텍 주식회사 | Member for controlling luminous flux and display device having the same |
| CN102788268A (en) * | 2012-07-27 | 2012-11-21 | 厦门立达信光电有限公司 | LED bulb lamp |
| CN102788268B (en) * | 2012-07-27 | 2016-04-20 | 漳州立达信光电子科技有限公司 | LEDbulb lamp |
| CN104121545A (en) * | 2013-04-29 | 2014-10-29 | 胜华科技股份有限公司 | Optical lens and light source device |
| CN106062465B (en) * | 2014-03-04 | 2018-04-17 | 三菱电机株式会社 | Light supply apparatus and lighting device |
| JPWO2015133233A1 (en) * | 2014-03-04 | 2017-04-06 | 三菱電機株式会社 | Light source device and illumination device |
| CN106062465A (en) * | 2014-03-04 | 2016-10-26 | 三菱电机株式会社 | Light source apparatus and lighting apparatus |
| CN108604055A (en) * | 2015-12-28 | 2018-09-28 | 球面光学有限公司 | Omnidirection refringent/reflection lens with odd item aspherical profile or poly-lens |
| CN108604055B (en) * | 2015-12-28 | 2021-05-25 | 球面光学有限公司 | Omnidirectional catadioptric lens with odd-order aspheric profile or multiple lenses |
| US11137582B2 (en) | 2015-12-28 | 2021-10-05 | Spere Optics Company, Llc | Omnidirectional catadioptric lens with odd aspheric contour or multi-lens |
| CN106646727A (en) * | 2017-03-17 | 2017-05-10 | 京东方科技集团股份有限公司 | Transparent display device |
| CN106646727B (en) * | 2017-03-17 | 2020-02-18 | 京东方科技集团股份有限公司 | Transparent display device |
| CN110159968A (en) * | 2019-04-03 | 2019-08-23 | 苏州阿奎睿思机器人科技有限公司 | Industrial lighting system |
| CN112303594A (en) * | 2019-07-31 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical lens, light-emitting device and display |
| CN112303593A (en) * | 2019-07-31 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical lens, light-emitting device and display |
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| C53 | Correction of patent of invention or patent application | ||
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Address after: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1180 No. 2 building second layer Applicant after: LED ONE (Hangzhou) Co., Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1180 No. 2 building second layer Applicant before: Aidi Photoelectric (Hangzhou) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: AIDI PHOTOELECTRIC (HANGZHOU) CO., LTD. TO: INVENTRONICS (HANGZHOU), INC. |
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Owner name: ZHEJIANG THINKLUX LIGHTING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: INVENTRONICS (HANGZHOU), INC. Effective date: 20130409 |
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Effective date of registration: 20130409 Address after: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 95 2 Building 3 layer Applicant after: Thinklux (Zhejiang) Lighting Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1180 No. 2 building second layer Applicant before: LED ONE (Hangzhou) Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20111109 |