CN204647929U - A kind of LED light source with reflective light conducting cylinder - Google Patents
A kind of LED light source with reflective light conducting cylinder Download PDFInfo
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- CN204647929U CN204647929U CN201520340431.2U CN201520340431U CN204647929U CN 204647929 U CN204647929 U CN 204647929U CN 201520340431 U CN201520340431 U CN 201520340431U CN 204647929 U CN204647929 U CN 204647929U
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Abstract
The utility model discloses a kind of LED light source with reflective light conducting cylinder, comprise reflective light conducting cylinder and LED light source; Reflective light conducting cylinder comprises and connects by the reflecting plate of more than three pieces the cylindrical shell surrounded successively, and described reflecting plate comprises plate body and is located at the reflecting layer on plate body; According to the exit direction of light, cylindrical shell comprises light input part, reflected beam portion and bright dipping part successively, and wherein bright dipping part is greater than light input part and makes cylindrical shell tapered; LED light source is located at one end of light input part.This structure can better manufacture light conducting cylinder, reduces costs, and bright dipping is more even.
Description
Technical field
The utility model relates to the LED light source with light conducting cylinder, especially relates to and can carry out multiple reflections and the LED light source that can change rising angle.
Background technology
For LED lamp, in order to obtain different rising angles and light efficiency, usually realized by optical element, current optical element mainly contains lens, reflector etc.
Lens are optical elements the most common in LED lamp, and its Main Function is optically focused.
In LED lamp, if employ reflector, control both optical angle could be realized by the reflective surface constructing more complicated.And more difficult control even light mixing.Also easily occur when forming hot spot that spot center has speck, has the flaw of the optical effect such as vignette, veiling glare around.
Certainly, in some light fixture, also adopt light-guiding pillar as light-guide device, at present, because of the reason manufactured, light-guiding pillar is plastics light-guiding pillar substantially.The guide-lighting principle of light-guiding pillar utilizes the refractive index of two media different and makes to enter into the light in light-guiding pillar in the generation total reflection of the border of light-guiding pillar, thus realize guide-lighting, like this, once the medium in light-guiding pillar and its external world there occurs change, light-guiding pillar such as, there are greasy dirt or contactant, then light cannot realize whole total reflections, part light is just had to penetrate from the side of light-guiding pillar, leaded light is made to have certain loss, namely can light-guiding pillar carry out normal guide-lighting larger by external influence, make guide-lighting stability bad, based on this impact, light-guiding pillar can not be random be fixed, otherwise the refraction performance of light-guiding pillar can be affected.In addition, all there is the low problem of transmitance in plastic optics material, and when the stroke of light in plastic material is longer, light penetration is lower; The heatproof of plastic material is not high yet, generally at about 120 DEG C; Higher in the local temperature near light source, easily there is the phenomenon of burning in plastics light-guiding pillar.
Certainly, also occur now utilizing light conducting cylinder to carry out guide-lighting technical scheme, as at application number be 201220694731.7 patent document in disclose a kind of LED remote projection lamp, light conducting cylinder is employed as light-guide device in this light fixture, but this light conducting cylinder is circular, therefore, the effect of reflection light be reached, cumbersome at manufacture view.
Summary of the invention
In order to better manufacture light conducting cylinder, reduce costs, make the color of bright dipping more even, the utility model provides a kind of LED light source with reflective light conducting cylinder.
For achieving the above object, a kind of LED light source with reflective light conducting cylinder, comprises reflective light conducting cylinder and LED light source; Reflective light conducting cylinder comprises and connects by the reflecting plate of more than three pieces the cylindrical shell surrounded successively, and described reflecting plate comprises plate body and is located at the reflecting layer on plate body; According to the exit direction of light, cylindrical shell comprises light input part, reflected beam portion and bright dipping part successively, and wherein bright dipping part is greater than light input part and makes cylindrical shell tapered; LED light source is located at one end of light input part.
Further, LED light source comprises the LED chip of two or more different colours.
Further, described plate body is glass plate body, and reflecting layer is plated on the inner surface of glass plate body.
Further, the light angle entered in cylindrical shell is a, and the angle of light injection cylindrical shell is b, and the angle of reflecting layer and body centre axis is c, and the order of reflection of light in cylindrical shell is n, then have b=a-2nc.
Further, be connected by viscose glue between reflecting plate.
Further, described LED light source comprises white light, ruddiness, blue light and green glow chip.
The beneficial effects of the utility model are: because the reflecting plate of cylindrical shell by more than three pieces forms, therefore, first reflecting layer is molded into after on plate body and connects reflecting plate again, like this, reflecting layer shaping very convenient, simple, even, temperature tolerance is good, makes of the present utility modelly to have the easily manufactured, simple of the LED light source of reflective light conducting cylinder, and cost is low, and because of reflecting layer even, therefore, reflectivity is high, reflection effective.Owing to can carry out the reflection of more than secondary in cylindrical shell except excentral light, when after the LED chip that have employed multiple different colours, light is after cylindrical shell, physics mixed light can be carried out in reflection process, therefore, the bright dipping through cylindrical shell can be made photochromic more even, without color distortion.In the utility model, utilize the cylindrical shell of taper, can rising angle be reduced, make it more easily reach actual instructions for use.Owing to adopting viscose glue to connect reflecting plate, therefore, the connection of reflecting plate is more convenient.
Accompanying drawing explanation
Fig. 1 is the stereogram of reflective light conducting cylinder.
Fig. 2 is the sectional view of the LED light source with reflective light conducting cylinder.
Fig. 3 is the schematic diagram of LED light source.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
As shown in Figure 2, there is the reflective light conducting cylinder 110 of LED light source and the LED light source 111 of reflective light conducting cylinder.
As depicted in figs. 1 and 2, reflective light conducting cylinder 110 comprises and connects by the reflecting plate 1 of more than three pieces the cylindrical shell 100 surrounded successively.Described reflecting plate 1 comprises plate body and is located at the reflecting layer on plate body, and the reflectivity in reflecting layer is greater than 98%; Described plate body preferred glass, reflecting layer is plated on the inner surface of plate body; Described reflecting layer is plane.Be connected by viscose glue between reflecting plate 1, other mode can certainly be adopted to connect, as long as be connected firmly by reflecting plate.Adopt this structure, can first shaping reflector layer, then reflecting plate is being linked together, such that the manufacture of light conducting cylinder is simple, cost is low, and such figured reflective layer, can allow the uniformity in reflecting layer high, make reflectivity high, reflecting effect is good, high to the utilization rate of light.
According to the exit direction of light, cylindrical shell comprises light input part 11, reflected beam portion 12 and bright dipping part 13 successively, and wherein bright dipping part 13 is greater than light input part 11 and makes cylindrical shell tapered, except excentral light is at least reflected twice in cylindrical shell.In the present embodiment, the setting light angle entered in cylindrical shell is a, and the angle of light injection cylindrical shell is b, and the angle of reflecting layer and body centre axis is c, and the order of reflection of light in cylindrical shell is n, then have b=a-2nc.Like this, when adopting conical shell, can rising angle be reduced, making it more easily reach actual instructions for use.
As shown in Figure 3, LED light source 111 is located at one end of light input part.Described LED light source 111 comprises white light, ruddiness, blue light and green glow chip.
Owing to can carry out the reflection of more than secondary in cylindrical shell except excentral light, when after the chip that have employed multiple different colours, light can carry out physics mixed light in reflection process, therefore, the bright dipping through cylindrical shell can be made photochromic more even, without color distortion.
Claims (6)
1. there is a LED light source for reflective light conducting cylinder, comprise reflective light conducting cylinder and LED light source; It is characterized in that: reflective light conducting cylinder comprises and connects by the reflecting plate of more than three pieces the cylindrical shell surrounded successively, described reflecting plate comprises plate body and is located at the reflecting layer on plate body; According to the exit direction of light, cylindrical shell comprises light input part, reflected beam portion and bright dipping part successively, and wherein bright dipping part is greater than light input part and makes cylindrical shell tapered; LED light source is located at one end of light input part.
2. the LED light source with reflective light conducting cylinder according to claim 1, is characterized in that: LED light source comprises the LED chip of two or more different colours.
3. the LED light source with reflective light conducting cylinder according to claim 1, is characterized in that: described plate body is glass plate body, and reflecting layer is plated on the inner surface of glass plate body.
4. the LED light source with reflective light conducting cylinder according to claim 1, it is characterized in that: the light angle entered in cylindrical shell is a, the angle of light injection cylindrical shell is b, and the angle of reflecting layer and body centre axis is c, the order of reflection of light in cylindrical shell is n, then have b=a-2nc.
5. the LED light source with reflective light conducting cylinder according to claim 1, be is characterized in that: be connected by viscose glue between reflecting plate.
6. the LED light source with reflective light conducting cylinder according to claim 1, is characterized in that: described LED light source comprises white light, ruddiness, blue light and green glow chip.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520340431.2U CN204647929U (en) | 2015-05-25 | 2015-05-25 | A kind of LED light source with reflective light conducting cylinder |
| EP15893185.7A EP3203279A4 (en) | 2015-05-25 | 2015-12-31 | Reflective light guide barrel, led light source and optical system |
| US15/515,151 US10139075B2 (en) | 2015-05-25 | 2015-12-31 | Reflective light guide tube and LED light source, and optical system |
| PCT/CN2015/100235 WO2016188117A1 (en) | 2015-05-25 | 2015-12-31 | Reflective light guide barrel, led light source and optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520340431.2U CN204647929U (en) | 2015-05-25 | 2015-05-25 | A kind of LED light source with reflective light conducting cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647929U true CN204647929U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520340431.2U Active CN204647929U (en) | 2015-05-25 | 2015-05-25 | A kind of LED light source with reflective light conducting cylinder |
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| Country | Link |
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| CN (1) | CN204647929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188117A1 (en) * | 2015-05-25 | 2016-12-01 | 广州市雅江光电设备有限公司 | Reflective light guide barrel, led light source and optical system |
| JP2021523401A (en) * | 2018-05-01 | 2021-09-02 | マテリオン コーポレイション | Optical tunnel and its manufacturing method |
-
2015
- 2015-05-25 CN CN201520340431.2U patent/CN204647929U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188117A1 (en) * | 2015-05-25 | 2016-12-01 | 广州市雅江光电设备有限公司 | Reflective light guide barrel, led light source and optical system |
| US10139075B2 (en) | 2015-05-25 | 2018-11-27 | Guangzhou Yajiang Photoelectric Equipment Co., Ltd | Reflective light guide tube and LED light source, and optical system |
| JP2021523401A (en) * | 2018-05-01 | 2021-09-02 | マテリオン コーポレイション | Optical tunnel and its manufacturing method |
| JP7362658B2 (en) | 2018-05-01 | 2023-10-17 | マテリオン コーポレイション | Light tunnel and its manufacturing method |
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