CN102434795A - Light-emitting diode (LED) cold light source lighting device - Google Patents
Light-emitting diode (LED) cold light source lighting device Download PDFInfo
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- CN102434795A CN102434795A CN2011103160193A CN201110316019A CN102434795A CN 102434795 A CN102434795 A CN 102434795A CN 2011103160193 A CN2011103160193 A CN 2011103160193A CN 201110316019 A CN201110316019 A CN 201110316019A CN 102434795 A CN102434795 A CN 102434795A
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Abstract
The invention discloses a light-emitting diode (LED) cold light source lighting device which includes an LED chip. A radiator is fixed on one side of the LED chip, and a lens barrel is fixed on the other side of the LED chip. A first lens, a first space ring, a second lens, a second space ring, a third lens, a third space ring, a fourth lens and a press ring are sequentially disposed in the lens barrel along the emitting direction of light. Optical centers of the LED chip, the first lens, the second lens, the third lens and the fourth lens are all located on an identical optical axis. The first lens and the fourth lens are made of spherical optical glass, and the second lens and the third lens which are in the same structure are made of axially-symmetric aspheric optical plastics and placed along the optical axis in opposite directions. The LED cold light source lighting device has the advantages of being compact in structure, small in volume, high in light energy utilization ratio, developed in processing techniques and more suitable for application field where optical fiber bundle coupling lighting is needed.
Description
Technical field
The present invention relates to a kind of LED cold light source lighting device, particularly relate to the LED cold light source lighting device that is applied to the fiber bundle coupling illumination.
Background technology
In the application of fiber bundle coupling illumination, like lighting devices such as medical endoscope, surgical operation microscopes, many at present employing xenon lamps or halogen tungsten lamp throw light on, and have many shortcomings such as bulky, that power consumption is high, the life-span is short, caloric value is big, optical energy utilization efficiency is low.
Along with the LED technology rapid development, the LED lighting device is also promoted in above-mentioned application gradually, but present LED lighting device adopts reflector to add the optical system of bar-shaped mirror more, exists shortcomings such as the efficiency of light energy utilization is low, processing technology is complicated, assembling difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of compact conformation, volume is little, optical energy utilization efficiency is high, processing technology is ripe LED cold light source lighting device.
For achieving the above object; LED cold light source lighting device of the present invention comprises led chip; Side fixed heat sink at led chip; The opposite side fixed lens barrel; In lens barrel, install first lens, first spacer ring, second lens, second spacer ring, the 3rd lens, the 3rd spacer ring, the 4th lens and trim ring successively along the exit direction of light, the optical centre of led chip, first lens, second lens, the 3rd lens and the 4th lens all is on the same optical axis, and first lens and the 4th lens are spherical optics glass; Second lens and the 3rd lens are the axisymmetric aspheric surface optical plastic of same structure, and second lens and the 3rd lens are in the opposite direction along the optical axis placement.
Among the present invention, it is Nai Gaore that first lens and the 4th lens adopt the purpose of spherical optics glass.Because led chip is luminous small-sized, about about 1 ~ 2mm, and luminous flux is very high; Be more than 500 lm; Therefore first lens are very high near the portion temperature of led chip, reach 100 ° usually more than the C, and optical glass will be got well much than the heat endurance of optical plastic.Equally, at exit facet, because light beam will be coupled into fibre bundle, light beam is a convergent beam after through the 4th lens, and size is also very little, is about 2 ~ 4mm, because the optical energy utilization efficiency of this device is very high, so luminous flux is still very high, and the temperature here is also very high.
Second lens and the 3rd lens adopt the axisymmetric aspheric surface structure, and purpose is when guaranteeing the very high efficiency of light energy utilization, shortens optical tube length, reduces size.At this moment light beam size between second lens and the 3rd lens increases a lot, and energy disperses, and therefore second lens and the 3rd lens position place temperature are not high, can adopt the relatively poor optical plastic of hear resistance.Simultaneously, make second lens and the 3rd lens along optical axis place in the opposite direction, can further reduce and make complexity and cost.
First lens in apparatus of the present invention and the 4th lens can adopt ripe spherical glass processing technology; Second lens and the 3rd lens can adopt ripe aspherics plastic processing; And optical-mechanical of the present invention is assembled into classical spacer ring and lens barrel mode, so the present invention has compact conformation, volume is little, optical energy utilization efficiency is high, processing technology is ripe advantage.
Description of drawings
Fig. 1 is the structural representation of LED cold light source lighting device of the present invention.
The specific embodiment
Further specify the present invention below in conjunction with accompanying drawing.
With reference to Fig. 1; LED cold light source lighting device of the present invention comprises led chip 2; Side fixed heat sink 1 at led chip 2; Opposite side fixed lens barrel 3; In lens barrel 3, install first lens 4, first spacer ring 5, second lens 6, second spacer ring 7, the 3rd lens 8, the 3rd spacer ring 9, the 4th lens 10 and trim ring 11 successively along the exit direction of light, the optical centre of led chip 2, first lens 4, second lens 6, the 3rd lens 8 and the 4th lens 10 all is on the same optical axis, and first lens 4 and the 4th lens 10 are spherical optics glass; Second lens 6 and the 3rd lens 8 are the axisymmetric aspheric surface optical plastic of same structure, and second lens 6 and the 3rd lens 8 are in the opposite direction along the optical axis placement.
Claims (1)
1. LED cold light source lighting device; It is characterized in that comprising led chip (2); Side fixed heat sink (1) at led chip (2); Opposite side fixed lens barrel (3); In lens barrel (3), install first lens (4), first spacer ring (5), second lens (6), second spacer ring (7), the 3rd lens (8), the 3rd spacer ring (9), the 4th lens (10) and trim ring (11) successively along the exit direction of light, the optical centre of led chip (2), first lens (4), second lens (6), the 3rd lens (8) and the 4th lens (10) all is on the same optical axis, and first lens (4) are spherical optics glass with the 4th lens (10); Second lens (6) are the axisymmetric aspheric surface optical plastic of same structure with the 3rd lens (8), and second lens (6) and the 3rd lens (8) are in the opposite direction along the optical axis placement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103160193A CN102434795A (en) | 2011-10-18 | 2011-10-18 | Light-emitting diode (LED) cold light source lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103160193A CN102434795A (en) | 2011-10-18 | 2011-10-18 | Light-emitting diode (LED) cold light source lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434795A true CN102434795A (en) | 2012-05-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103160193A Pending CN102434795A (en) | 2011-10-18 | 2011-10-18 | Light-emitting diode (LED) cold light source lighting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102434795A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789048A (en) * | 2012-05-21 | 2012-11-21 | 上海显恒光电科技股份有限公司 | Cold light source illumination system for microscope |
| CN102973324A (en) * | 2012-12-24 | 2013-03-20 | 桐庐精锐医疗器械有限公司 | Medical light guide instrument and combined light gathering device thereof |
| CN103190878A (en) * | 2013-03-22 | 2013-07-10 | 浙江大学 | Multifunctional medical LED (Light Emitting Diode) lighting system |
| CN108469009A (en) * | 2018-05-28 | 2018-08-31 | 合肥德铭电子有限公司 | A kind of medical LED cold light sources beam condensing unit |
| CN109031544A (en) * | 2018-08-01 | 2018-12-18 | 苏州汇影光学技术有限公司 | A kind of great power LED fiber coupling system |
| CN109891151A (en) * | 2016-10-13 | 2019-06-14 | 韩国电气研究院 | Medical light source module and the medical light source device for having this |
| CN115325510A (en) * | 2022-08-10 | 2022-11-11 | 东莞康视达自动化科技有限公司 | Light source system and light source replacing method |
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| CN101443686A (en) * | 2006-05-08 | 2009-05-27 | 波士顿科技有限公司 | Optical assembly for medical imaging devices |
| CN101666962A (en) * | 2009-09-29 | 2010-03-10 | 南阳市海科光电有限责任公司 | Minitype single-chip LCOS projection optical engine |
| CN101720444A (en) * | 2008-06-09 | 2010-06-02 | 尤米蒂科有限公司 | Lens system |
| CN101761869A (en) * | 2010-01-27 | 2010-06-30 | 海洋王照明科技股份有限公司 | Uniform light distribution lens and LED lamp thereof |
| CN102095105A (en) * | 2011-01-19 | 2011-06-15 | 上海光隧光电科技有限公司 | LED lighting source device |
| CN202253065U (en) * | 2011-10-18 | 2012-05-30 | 杭州首天光电技术有限公司 | Light emitting diode (LED) cold light source lighting device |
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2011
- 2011-10-18 CN CN2011103160193A patent/CN102434795A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101443686A (en) * | 2006-05-08 | 2009-05-27 | 波士顿科技有限公司 | Optical assembly for medical imaging devices |
| CN101720444A (en) * | 2008-06-09 | 2010-06-02 | 尤米蒂科有限公司 | Lens system |
| CN101666962A (en) * | 2009-09-29 | 2010-03-10 | 南阳市海科光电有限责任公司 | Minitype single-chip LCOS projection optical engine |
| CN101761869A (en) * | 2010-01-27 | 2010-06-30 | 海洋王照明科技股份有限公司 | Uniform light distribution lens and LED lamp thereof |
| CN102095105A (en) * | 2011-01-19 | 2011-06-15 | 上海光隧光电科技有限公司 | LED lighting source device |
| CN202253065U (en) * | 2011-10-18 | 2012-05-30 | 杭州首天光电技术有限公司 | Light emitting diode (LED) cold light source lighting device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789048A (en) * | 2012-05-21 | 2012-11-21 | 上海显恒光电科技股份有限公司 | Cold light source illumination system for microscope |
| CN102973324A (en) * | 2012-12-24 | 2013-03-20 | 桐庐精锐医疗器械有限公司 | Medical light guide instrument and combined light gathering device thereof |
| CN103190878A (en) * | 2013-03-22 | 2013-07-10 | 浙江大学 | Multifunctional medical LED (Light Emitting Diode) lighting system |
| CN109891151A (en) * | 2016-10-13 | 2019-06-14 | 韩国电气研究院 | Medical light source module and the medical light source device for having this |
| CN109891151B (en) * | 2016-10-13 | 2021-03-23 | 韩国电气研究院 | Medical light source module and medical light source device provided with same |
| CN108469009A (en) * | 2018-05-28 | 2018-08-31 | 合肥德铭电子有限公司 | A kind of medical LED cold light sources beam condensing unit |
| CN109031544A (en) * | 2018-08-01 | 2018-12-18 | 苏州汇影光学技术有限公司 | A kind of great power LED fiber coupling system |
| CN115325510A (en) * | 2022-08-10 | 2022-11-11 | 东莞康视达自动化科技有限公司 | Light source system and light source replacing method |
| CN115325510B (en) * | 2022-08-10 | 2023-10-03 | 东莞康视达自动化科技有限公司 | Light source system and light source replacement method |
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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: 20120502 |