CN102135265A - Condensing system and method for LED - Google Patents
Condensing system and method for LED Download PDFInfo
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- CN102135265A CN102135265A CN2010101015415A CN201010101541A CN102135265A CN 102135265 A CN102135265 A CN 102135265A CN 2010101015415 A CN2010101015415 A CN 2010101015415A CN 201010101541 A CN201010101541 A CN 201010101541A CN 102135265 A CN102135265 A CN 102135265A
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Abstract
The invention relates to a condensing system and a condensing method for a light-emitting diode (LED). Specifically, the invention provides the condensing system for the LED. The system comprises one or more LEDs, and a condensing device which is provided with one or more reflection curved surfaces for installing one or more LEDs and is used for reflecting light emitted by one or more LEDs; the one or more LEDs are arranged on or near focuses of the reflection curved surfaces, and light emitted by the one or more LEDs can be reflected and focused through the reflection curved surfaces, so that condensing is realized. The invention also provides a condensing method for the LED. The invention has the advantages that: the condensing of the combination of the plurality of LEDs can be realized, the system has a simple structure, and the development cost and the manufacturing cost are greatly reduced. Meanwhile, the condensing is mainly realized through reflection, chromatic dispersion is greatly reduced and color purity is guaranteed.
Description
Technical field
The present invention relates to the LED field, be specifically related to the LED condenser system.
More specifically, the invention provides a kind of new condenser system at single or plurality of LEDs combination and exploitation, comprise the optically focused that single or plurality of LEDs are carried out, this optically focused utilization optical reflection principle and focusing principle, by quadratic surface or high order curved surface or faceted pebble or shear surface the luminous of LED reflected and optically focused, thereby realize needed optically focused.
Background technology
The luminous efficiency of LED and radiating treatment are more and more advanced now, and the power of LED and single luminous flux are increasing, and light-emitting area is also increasing, and the luminous size of great power LED has reached 10mm * 10mm or higher now.
Because LED has environmental protection, energy-conservation, superiority such as euchroic, on the market to being that the product development dynamics of light source continues to increase with LED.Because the appearance of great power LED makes and might close the very high brightness of realization with a less LED array, substitutes 500W even more high-power bubble lamp with brightness, this has been a kind of trend.
But just very difficult because the increase of the light-emitting area of great power LED will realize optically focused, proposition of the present invention is exactly in order to solve the optically focused problem after great power LED makes up.
One of existing optically focused scheme is that first scioptics group or free form surface carry out optically focused to single LEDs respectively, focal point is merged again.
Two of existing optically focused scheme is that plurality of LEDs is placed in together, simultaneously plurality of LEDs is carried out optically focused with set of lenses or free form surface.
Two kinds of above technical schemes all relate to set of lenses or free form surface, and when the light-emitting area of LED continued to increase (being tending towards area source), the lens arrangement of respective design or free form surface can become increasingly complex, and lens design and manufacturing cost can be more and more higher.When realizing plurality of LEDs optically focused, the structure of lens can be complicated more, and volume also increases exponentially, and design cost and manufacturing cost can improve greatly.
Summary of the invention
The objective of the invention is to avoid designing complicated lens and free form surface structure, reduce design cost and manufacturing cost.Simultaneously, the present invention can also realize the optically focused of one or plurality of LEDs (great power LED particularly, for example single power is greater than the LED of 50W) combination well.
One of inventive concept of the present invention is, LED is placed on the focus or near the position of reflecting curved surface, and the reflection by curved surface realizes optically focused.
The present invention makes full use of the characteristics of luminescence of LED, comprises the characteristics of luminescence of not carrying out once light-distribution or carrying out the LED of once light-distribution.Utilize the reflection of light principle, use reflecting curved surface, make to be placed in the light that near the LED curved surface focus place or the focus sends, carry out optically focused in target face.Can realize optically focused to the individual LED of n (n 〉=1).
Via the reflection of reflecting curved surface, realize the control of lighting angle by single or light that plurality of LEDs sent, thereby single or plurality of LEDs are realized optically focused.
When needs are realized the optically focused of n LEDs, according to the needs of optical design, the reflecting curved surface that design optically focused is used.LED is placed near the focus or focus of curved surface then, the light that LED sends is assembled in target face through the reflection of curved surface.So just realized the optically focused of LED.
According to an aspect of the present invention, provide the condenser system of a kind of LED of being used for, having comprised:
Single or plurality of LEDs; With
Light collecting device, it has one or more reflecting curved surfaces that are used for installing single or plurality of LEDs, is used for reflecting the light that is sent by single or plurality of LEDs;
Wherein, single or plurality of LEDs are installed in the focus of reflecting curved surface or near position it, and the light that single or plurality of LEDs is sent by reflecting curved surface reflects and focuses on, thus realization optically focused.
According to a preferred embodiment of the invention, reflective surface is quadratic surface or high order curved surface or faceted pebble or shear surface.
According to another preferred embodiment of the invention, reflective surface is the form of reflector or its section.
According to another preferred embodiment of the invention, light collecting device is a reflective surface.
According to another preferred embodiment of the invention, LED is a great power LED.
According to another preferred embodiment of the invention, LED is white light or color LED, LED of all kinds such as for example green, blue, yellow, orange, redness.
According to another preferred embodiment of the invention, on reflective surface, be covered with reflectivity greater than 93% reflective membrane.
According to another preferred embodiment of the invention, the reflective surface of light collecting device be aluminum or glass or plastic or other material make all can be used for reflective reflective surface.
The present invention also provides the concentrating method of a kind of LED of being used for, comprising:
Single or plurality of LEDs are provided; With
Light collecting device is provided, and it has one or more reflective surfaces that are used for installing single or plurality of LEDs, is used for reflecting the light that is sent by single or plurality of LEDs;
Wherein, with single or plurality of LEDs is installed in the focus of reflective surface or near position it, the light that single or plurality of LEDs is sent by reflective surface reflects and focuses on, thereby realizes optically focused.
The invention has the advantages that the optically focused that can easily realize the plurality of LEDs combination, simple structure greatly reduces development cost and manufacturing cost.Because optically focused mainly is to realize by reflecting, greatly reduce chromatic dispersion simultaneously, guaranteed excitation.
Description of drawings
In following description, will set forth one or more embodiments of the detail of the present invention to the drawings and specific embodiments.From these descriptions, accompanying drawing and claim, can know other features, objects and advantages of the present invention.
Fig. 1 realizes that with 3 LEDs optically focused is system's vertical view of example.
Fig. 2 realizes that with 3 LEDs optically focused is system's graphics of example.
The label declaration of parts among the figure:
The specific embodiment
Before describing the present invention in detail, it will be appreciated by those skilled in the art that " LED " should do the understanding on the most wide in range connotation in this application, promptly, include all types of light emitting diodes (LED), comprise pin type and patch-type LED, all kinds of monochromatic LEDs, for example red-light LED, yellow light LED, all kinds of short wavelength LED such as blue-ray LED, green light LED, and white light LEDs, and great power LED, through the LED of once light-distribution, without the LED of once light-distribution, or the like.Here the description to embodiment only is for helping to understand purpose of the present invention, protection scope of the present invention not being had any restriction.Scope of the present invention is limited by claims.
According to an one exemplary embodiment of the present invention, for example, need to realize the optically focused of 3 LEDs, the light-emitting area of LED is 8mm * 8mm, need illuminate diameter with LED and be for example disc of 36mm.
At first, device of realizing optically focused of needs design according to optically focused, for example be the reflector of band reflecting curved surface in the present embodiment, what here we used is the reflector of elliposoidal, for example shown in Fig. 1-2, design parameter is as follows: F1=20, F2=160, highly be 49.1, bore is 100.8.This ellipsoid reflector can adopt any suitable material well known in the art to make, aluminum reflector for example, wherein reflective surface is the aluminum reflective surface, and as required can also be on the aluminum reflective surface coating last layer highly reflecting films, for example reflectivity is greater than 93% reflective membrane, to increase reflecting effect.
Then, for example as illustrated in fig. 1 and 2, it is 3 reflective surfaces that reflector is divided equally along rotation (for example being the Z axle in Fig. 2), and then the radian of each reflective surface is 120 degree.Each reflective surface is the section of ellipsoid, and its optical parametric such as focal length or the like can customize according to client's needs and according to number of LED or the like.
Single LEDs, for example be high-power patch-type LED, be installed in towards one of them reflective surface on the focus of this ellipsoid section, make its light that sends reflect again by the reflecting surface of ellipsoid, and its reflection direction points to the disc that need be illuminated, and has so just finished the installation of a LED reflecting system.
Adopting uses the same method installs other two LED, makes the reflection direction of these two LED point to the disc that need be illuminated equally.
Like this, just can illuminate the disc that diameter is 36mm simultaneously with 3 discrete led light source reflecting systems.
Like this, according to this embodiment of the invention, just realized condenser system at three LEDs, this condenser system does not need the sort of complicated lens of the prior art or free form surface, only needs to adopt the reflector that has the ellipsoid section, simple structure, thereby greatly reduce development cost and manufacturing cost, and because optically focused mainly is to realize by reflecting, greatly reduce chromatic dispersion simultaneously, guaranteed excitation.
Below will be that specific embodiment is described in detail the present invention in conjunction with the accompanying drawings with condenser system at three LEDs.But, it will be appreciated by those skilled in the art that the above only is to illustrate and describe some specific embodiment, to scope of the present invention, especially the scope of claim does not have any restriction.Scope of the present invention is limited by claims.
Claims (10)
1. condenser system that is used for LED comprises:
Single or plurality of LEDs; With
Light collecting device, it has one or more reflective surfaces that are used for installing described single or plurality of LEDs, is used for reflecting the light that is sent by described single or plurality of LEDs;
Wherein, described single or plurality of LEDs are installed in the focus of described reflective surface or near position it, and the light that described single or plurality of LEDs is sent by described reflective surface reflects and assembles, thus realization optically focused.
2. each described condenser system in requiring according to aforesaid right is characterized in that described light collecting device is a reflective surface.
3. condenser system according to claim 1 and 2 is characterized in that, described reflective surface is the form of reflector or its section.
4. each described condenser system in requiring according to aforesaid right is characterized in that described LED is a great power LED.
5. each described condenser system in requiring according to aforesaid right is characterized in that described LED is white light or color LED.
6. each described condenser system in requiring according to aforesaid right is characterized in that, described LED is the LED without once light-distribution and process once light-distribution.
7. each described condenser system in requiring according to aforesaid right is characterized in that, the reflective surface of described light collecting device be aluminium or glass or plastic material make can be used for reflective reflective surface.
8. each described condenser system in requiring according to aforesaid right is characterized in that, is covered with reflectivity on the described reflective surface greater than 93% reflective membrane.
9. concentrating method that is used for LED comprises:
Single or plurality of LEDs are provided; With
Light collecting device is provided, and it has one or more reflective surfaces that are used for installing described single or plurality of LEDs, is used for reflecting the light that is sent by described single or plurality of LEDs;
Wherein, with described single or plurality of LEDs is installed in the focus of described reflective surface or near position it, the light that described single or plurality of LEDs is sent by described reflective surface reflects and focuses on, thereby realizes optically focused.
10. concentrating method according to claim 9 is characterized in that, described reflective surface is quadratic surface or high order curved surface or faceted pebble or shear surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101015415A CN102135265A (en) | 2010-01-26 | 2010-01-26 | Condensing system and method for LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101015415A CN102135265A (en) | 2010-01-26 | 2010-01-26 | Condensing system and method for LED |
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| Publication Number | Publication Date |
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| CN102135265A true CN102135265A (en) | 2011-07-27 |
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| CN2010101015415A Pending CN102135265A (en) | 2010-01-26 | 2010-01-26 | Condensing system and method for LED |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214552A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Light source module for shadowless lamp and shadowless lamp with same |
-
2010
- 2010-01-26 CN CN2010101015415A patent/CN102135265A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214552A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Light source module for shadowless lamp and shadowless lamp with same |
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Application publication date: 20110727 |
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