CN102478157A - Tubular LED (Light-Emitting Diode) light source - Google Patents
Tubular LED (Light-Emitting Diode) light source Download PDFInfo
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- CN102478157A CN102478157A CN2010105579328A CN201010557932A CN102478157A CN 102478157 A CN102478157 A CN 102478157A CN 2010105579328 A CN2010105579328 A CN 2010105579328A CN 201010557932 A CN201010557932 A CN 201010557932A CN 102478157 A CN102478157 A CN 102478157A
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- light source
- led light
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Abstract
The invention belongs to the field of photoelectrons, and discloses a tubular LED (Light-Emitting Diode) light source, which comprises LEDs for emitting white light and a cylindrical transparent light-conducting stick of a regular appearance, wherein the LEDs are sleeved into LED holes formed on the two end faces of the light-conducting stick in a matching way; the central region of the light-conducting stick is provided with a light scattering column consisting of light scattering particles along the axial direction of the light-conducting stick; and the light-conducting stick is a cylindrical, elliptical or regular polyhedral prism. In the tubular LED light source provided by the invention, a way of adopting a white-light LED lamp strip in the conventional tubular LED light source is eliminated, LED side face illumination is adopted, and the uniformity of a light emitting surface can be ensured under the total reflection action of the outer surface of the light-conducting stick and the scattering action of the light scattering column. Due to the adoption of the tubular LED light source, procedures are eliminated, cost is reduced, and the light efficiency is increased greatly.
Description
Technical field
The present invention relates to a kind of led light source structure, relate in particular to a kind of apparent tubulose led light source that is used to throw light on, shield.
Background technology
Led light source has low in energy consumption, the characteristics of long service life.At present, the light efficiency of powerful white light LEDs has reached 100lm/W, and the light efficiency of stabilized products also has 90lm/W, but LED is a spot light, and the light that is sent has the characteristics of uneven illumination, vision adaptive difference.At present, the form that a lot of manufacturers use for reference fluorescent tube is made LED cast light source, is arranged in LED on the pcb board bar, and still, this way can cause lamp when lighting, and every LEDs is all high-visible.In order to address the above problem, some producers make the frosted type to the cast glass tube of LED outside, but these methods can cause the utilization rate of light to descend.
Summary of the invention
Based on the problems referred to above, the tubulose led light source that the objective of the invention is to propose a kind ofly to provide simple in structure, cost is low, exiting surface is even, the efficiency of light energy utilization is high, light efficiency is high.
A kind of tubulose led light source provided by the invention comprises the LED that launches white light, and the column transparent light guide rod of profile rule; Said LED is adaptive to be inserted in the LED hole that is provided with on the said lamp guide both ends of the surface, and said lamp guide central area is provided with the light scattering post that is made up of optical scatter along its axial direction; The profile of said lamp guide is configured to the polygonal prism cylinder of cylinder, oval cylinder or rule.
Described tubulose led light source, wherein, said polygonal prism cylinder is quadrangular or six prisms.
Described tubulose led light source, wherein, the material of said lamp guide is a polymethyl methacrylate, or Merlon.
Described tubulose led light source, wherein, the material of said optical scatter is aluminium oxide, lanthana, silica, zirconium dioxide, titanium dioxide or barium sulfate.
Described tubulose led light source, wherein, the particle diameter of said optical scatter is 10nm～100 μ m.
Described tubulose led light source, wherein, the profile of said light scattering post structure is similar with the profile structure of said lamp guide.
Said tubulose led light source also comprises a heat-radiating substrate, and said LED is arranged on the said heat-radiating substrate; The material of said heat-radiating substrate is aluminium, copper, iron, alloy or pottery.
Said tubulose led light source also comprises a support, and this support is fixed together said heat-radiating substrate and said lamp guide.
Compared with prior art; Tubulose led light source provided by the invention has been abandoned the mode that adopts the white LED lamp bar in traditional LED cast light source, and adopts LED side formula luminous; Via the total reflection effect of lamp guide outer surface and the scattering process of light scattering post, can guarantee the uniformity of exiting surface.Like this,, reduced outside the cost, also improved light efficiency greatly except having saved operation.
Description of drawings
Fig. 1 is that lamp guide is columned led light source part side view among the embodiment 1;
Fig. 2 is a lamp guide bottom view among Fig. 1;
Fig. 3 is that lamp guide is a lamp guide bottom view in the led light source of quadrangular among the embodiment 2;
Fig. 4 is that lamp guide is a lamp guide bottom view in the six prismatic led light sources among the embodiment 3.
Specific embodiment
A kind of tubulose led light source provided by the invention comprises the LED that launches white light, and the column transparent light guide rod of profile rule, and this profile of stating lamp guide is configured to the polygonal prism cylinder (like quadrangular, six prisms etc.) of cylinder, oval cylinder or rule; Said LED is adaptive to be inserted in the LED hole that is provided with on the said lamp guide both ends of the surface; And said lamp guide central area is provided with the light scattering post that is made up of optical scatter along its axial direction; Comprise also in the preferred version being used for the heat-radiating substrate that dispels the heat to LED and being used for fixing whole light source and the support that plays beauty function that this support fixes up heat-radiating substrate and lamp guide.The Outboard Sections of said heat-radiating substrate can be a fin-shaped, also can be other shapes that help dispelling the heat; The material of said heat-radiating substrate can be an aluminium, also can be copper, also can be iron, also can be alloy, also can be pottery, also can be other heat sink material.
This tubulose led light source, in its lamp guide, except the light scattering post, remainder is water white.
The material of water white transparency part in the lamp guide; Can be polymethyl methacrylate (PMMA claims acrylic or lucite again), also can be Merlon (PC); Also can be Zeonor (Nippon Zeon Co., Ltd.'s product); Also can be 70FH (Japanese Asahi Kasei Corporation product), also can be glass material, also can be other transparent materials; The profile structure of light reflection post is identical with lamp guide, also can be inequality.
In this tubulose led light source, its light scattering post is optical scatter and binding material, as PMMA or with the amalgam of the identical material of lamp guide; And the binding material of light scattering post is the same with the material of water white transparency part in the lamp guide.
When selecting optical scatter for use; Preferentially select for use have high index of refraction, the powder particle of low visible light absorptivity; Its material can be aluminium oxide, lanthana, silica, zirconium dioxide, titanium dioxide, barium sulfate etc., also can have the material of good light scattering property for other; And the particle diameter of optical scatter is 10nm～100 μ m.
In the actual design, the LED quantity in the tubulose led light source can be many, and like 2,4 or 6 etc., and the water white transparency in two bottom surfaces of lamp guide partly is distributed with LED groove or the hole suitable with LED quantity.Other places except groove and hole, bottom surface can be smooth, also can be that frosted was handled, and also can plate reflectance coating.
The design that the said heat-radiating substrate of tubulose led light source can separate with support also can fuse with support, and its shape can be circular, also can be oval-shaped, also can be square, also can be other shapes.
The tubulose led light source, the material of support can be plastics, also can be metal, also can be other hard material.
Below in conjunction with accompanying drawing, further explain is done in preferred embodiment of the present invention.
Embodiment 1
As illustrated in fig. 1 and 2; A kind of tubulose led light source; Comprise white light LEDs 11, lamp guide 13 is provided with the light scattering post 12 that is made up of optical reflection particle along its axial direction setting in the central area of lamp guide 13; Be used for fixing the heat-radiating substrate 14 of white light LEDs 11 and be used for fixing the support 15 of total.
In the present embodiment, the external diameter shape of light scattering post 12 and lamp guide 13 is all taked circle,
The water white transparency part evenly is provided with little LED groove or hole in two end faces of lamp guide 13, and size is complementary with white light LEDs 11, and the place of bottom surface except LED groove or hole is coated with the highly reflecting films of visible light.
The material of the water white transparency part of lamp guide 13 and the binding material of light scattering post 12 can be PMMA, also can be PC, also can be glass, also can be chosen as PMMA in the present embodiment for other transparent cake material.
Its material of scattering particles in the light scattering post 12 can be aluminium oxide, lanthana, silica, zirconium dioxide, titanium dioxide, barium sulfate etc.; The material that also can have good light scattering property for other; In the present embodiment, be chosen as alumina particle, particle diameter is 10nm.
Heat-radiating substrate 14 is circular wrist shapes of inside part hollow out.
The outer shape of heat-radiating substrate 14 can be for circle, also can be for square, also can be for other arbitrary shapes, select circular in the present embodiment.In the present embodiment, the Outboard Sections of heat-radiating substrate 14 is made fin-shaped, helps heat radiation.
The material of heat-radiating substrate 14 can be an aluminium, also can be copper, also can be iron, also can be alloy, also can be pottery, also can be other heat sink material, adopts aluminium in the present embodiment.
The material of support 15 can be plastics, also can be metal, also can be other hard material, is chosen as rigid plastics in the present embodiment.
Embodiment 2
As shown in Figure 3, a kind of tubulose led light source, basic encapsulating structure and embodiment 1 are similar; Difference is that the shape of light scattering post 12 is chosen as square, and optical scatter is a titanium dioxide granule; Particle diameter is 1 μ m, so the arrangement of white light LEDs 21 also changes to some extent.
Embodiment 3
As shown in Figure 4; A kind of tubulose led light source, basic encapsulating structure and embodiment 1 are similar, and difference is; The external diameter of the shape of light scattering post 12 and lamp guide 13 is shaped as regular hexagon;, optical scatter is a zirconium dioxide particle, so particle diameter is the also change to some extent of arrangement of 100 μ m white light LEDs 31.
Should be understood that above-mentioned statement to preferred embodiment of the present invention is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. a tubulose led light source is characterized in that, this tubulose led light source comprises the LED that launches white light, and the column transparent light guide rod of profile rule; Said LED is adaptive to be inserted in the LED hole that is provided with on the said lamp guide both ends of the surface, and said lamp guide central area is provided with the light scattering post that is made up of optical scatter along its axial direction; The profile of said lamp guide is configured to the polygonal prism cylinder of cylinder, oval cylinder or rule.
2. tubulose led light source according to claim 1 is characterized in that, said polygonal prism cylinder is quadrangular or six prisms.
3. tubulose led light source according to claim 1 is characterized in that, the material of said lamp guide is a polymethyl methacrylate, or Merlon.
4. emitting red light device according to claim 1 is characterized in that, the material of said optical scatter is aluminium oxide, lanthana, silica, zirconium dioxide, titanium dioxide or barium sulfate.
5. tubulose led light source according to claim 1 is characterized in that, the particle diameter of said optical scatter is 10nm～100 μ m.
6. tubulose led light source according to claim 1 is characterized in that, the profile structure of said light scattering post is similar with the profile structure of said lamp guide.
7. tubulose led light source according to claim 1 is characterized in that, said tubulose led light source also comprises a heat-radiating substrate, and said LED is arranged on the said heat-radiating substrate.
8. tubulose led light source according to claim 7 is characterized in that, the material of said heat-radiating substrate is aluminium, copper, iron, alloy or pottery.
9. tubulose led light source according to claim 7 is characterized in that, said tubulose led light source also comprises a support, and this support is fixed together said heat-radiating substrate and said lamp guide.
10. tubulose led light source according to claim 9 is characterized in that, the material of said support is plastics or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105579328A CN102478157A (en) | 2010-11-24 | 2010-11-24 | Tubular LED (Light-Emitting Diode) light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105579328A CN102478157A (en) | 2010-11-24 | 2010-11-24 | Tubular LED (Light-Emitting Diode) light source |
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| Publication Number | Publication Date |
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| CN102478157A true CN102478157A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105579328A Pending CN102478157A (en) | 2010-11-24 | 2010-11-24 | Tubular LED (Light-Emitting Diode) light source |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151443A (en) * | 2013-02-19 | 2013-06-12 | 东南大学 | Total-reflection lateral light-emitting white-light light emitting diode (LED) packaging structure |
| CN103206631A (en) * | 2013-03-29 | 2013-07-17 | 易美芯光（北京）科技有限公司 | LED (light emitting diode) fluorescent tube |
| CN103672745A (en) * | 2013-12-17 | 2014-03-26 | 京东方科技集团股份有限公司 | Line light source, backlight module and display device |
| CN105508897A (en) * | 2015-11-09 | 2016-04-20 | 广东方大索正光电照明有限公司 | LED (light-emitting diode) T8 lamp tube |
| CN108591853A (en) * | 2018-06-22 | 2018-09-28 | 苏州欧普照明有限公司 | Optical element, illumination module and bulb lamp |
| CN115930126A (en) * | 2015-03-02 | 2023-04-07 | 巴斯特与潘奇有限责任公司 | Bulb and method for manufacturing bulb |
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| CN201121839Y (en) * | 2007-11-05 | 2008-09-24 | 传典光电科技有限公司 | LED illumination device |
| CN101334134A (en) * | 2008-07-23 | 2008-12-31 | 伟志光电（深圳）有限公司 | Optical wand -type LED lighting source |
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| CN101676772A (en) * | 2008-09-19 | 2010-03-24 | 北京京东方光电科技有限公司 | LCD and its backlight module |
| CN201439920U (en) * | 2009-07-27 | 2010-04-21 | 邱铭禧 | Solar bird feces-proofing splinter light-emitting device |
| GB2464916A (en) * | 2008-10-21 | 2010-05-05 | Iti Scotland Ltd | A light guide with light scattering features. |
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| CN201047514Y (en) * | 2007-04-01 | 2008-04-16 | 宜兰汽车配件制造(平湖)有限公司 | Barcode illuminating device |
| CN201121839Y (en) * | 2007-11-05 | 2008-09-24 | 传典光电科技有限公司 | LED illumination device |
| CN101581433A (en) * | 2008-05-14 | 2009-11-18 | 富准精密工业(深圳)有限公司 | Light-emitting diode light fitting |
| CN101334134A (en) * | 2008-07-23 | 2008-12-31 | 伟志光电（深圳）有限公司 | Optical wand -type LED lighting source |
| CN101676772A (en) * | 2008-09-19 | 2010-03-24 | 北京京东方光电科技有限公司 | LCD and its backlight module |
| GB2464916A (en) * | 2008-10-21 | 2010-05-05 | Iti Scotland Ltd | A light guide with light scattering features. |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151443A (en) * | 2013-02-19 | 2013-06-12 | 东南大学 | Total-reflection lateral light-emitting white-light light emitting diode (LED) packaging structure |
| CN103151443B (en) * | 2013-02-19 | 2015-08-26 | 东南大学 | Full reflection side is to light-emitting type White-light LED package structure |
| CN103206631A (en) * | 2013-03-29 | 2013-07-17 | 易美芯光（北京）科技有限公司 | LED (light emitting diode) fluorescent tube |
| CN103206631B (en) * | 2013-03-29 | 2016-07-06 | 易美芯光（北京）科技有限公司 | A kind of LED fluorescent lamp tube |
| CN103672745A (en) * | 2013-12-17 | 2014-03-26 | 京东方科技集团股份有限公司 | Line light source, backlight module and display device |
| CN103672745B (en) * | 2013-12-17 | 2017-02-01 | 京东方科技集团股份有限公司 | line light source, backlight module and display device |
| CN115930126A (en) * | 2015-03-02 | 2023-04-07 | 巴斯特与潘奇有限责任公司 | Bulb and method for manufacturing bulb |
| CN105508897A (en) * | 2015-11-09 | 2016-04-20 | 广东方大索正光电照明有限公司 | LED (light-emitting diode) T8 lamp tube |
| CN108591853A (en) * | 2018-06-22 | 2018-09-28 | 苏州欧普照明有限公司 | Optical element, illumination module and bulb lamp |
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Application publication date: 20120530 |