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Light combining system of LED three-color light

An optical system and three-color light technology, applied in the field of light combining system, can solve problems such as unfavorable heat dissipation design, high manufacturing process requirements, and inability to arrange, and achieve the effects of simple structure, simplified heat dissipation design, and easy manufacturing.

Active Publication Date: 2012-08-22
QINGDAO NOVELBEAM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three-channel color combination system has the following disadvantages: the X-prism is made of four right-angle prisms glued together, which requires high manufacturing technology and high cost. In addition, for the industrial application of high-power LEDs, its power consumption can reach 200W Above, heat dissipation becomes a very important issue. The radiators of the three LEDs in this structure are separated from each other and cannot be arranged on the same exhaust air duct, which is not conducive to the heat dissipation design of the entire system.

Method used

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  • Light combining system of LED three-color light
  • Light combining system of LED three-color light
  • Light combining system of LED three-color light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The structure of the photocombining system of the present embodiment, see figure 2 . The key technical points of this embodiment: the first LED light-emitting chip 1, the second LED light-emitting chip 2 and the third LED light-emitting chip 3 are red LED light-emitting chips, green LED light-emitting chips and blue LED light-emitting chips respectively, and the reflective sheet The reflective film of 8 is a reflective film that reflects red light, the dichroic film of the first dichroic sheet 9 is a spectroscopic film that transmits green light and reflects blue light, and the spectroscopic film of the second dichromatic sheet 10 is a spectroscopic film that transmits red light, reflects green light and Blue light splitting film.

[0027] The working principle of this embodiment.

[0028] In the first LED light channel, the red light emitted by the red LED light-emitting chip passes through the first relay lens group 4 to the reflective sheet 8 at an incident angle ...

Embodiment 2

[0030] The structure of the photocombining system of the present embodiment, see image 3 . This embodiment is identical to Embodiment 1 except for the following differences. The key technical points of this embodiment: the red LED light-emitting chip, the green LED light-emitting chip and the blue LED light-emitting chip are respectively installed on the respective heat dissipation bases of the first heat sink 12, the second heat sink 13 and the third heat sink 14 On the top surface 20 of 16, the three heat sinks described are heat pipe radiators, each heat pipe radiator contains heat dissipation base 16, heat pipe 17 and heat dissipation fins 18, heat dissipation base 16 contains top surface 20 and arcuate groove 23, heat pipe The cross-section of the pipe section connecting the heat dissipation base 16 and the heat dissipation base 16 is arcuate, and the arcuate shape contains arcs 21 and chords 22. The heat pipe 17 is close to the plane and the top surface 20 of all the c...

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Abstract

The invention discloses a light combining system of LED three-color light, comprising a first LED light channel, a second LED light channel, a reflective sheet, a second double-color sheet and a convergent lens group. The first LED light channel comprises a first LED luminous chip and a first relay lens group; the second LED light channel comprises a second LED luminous chip and a third LED luminous chip, a second relay lens group, a third relay lens group, a fourth relay lens group and a first double-color sheet, wherein the light emitted by the first LED luminous chip enters the first LED light channel; the light emitted by the second LED luminous chip and the third LED luminous chip enters the second LED light channel from two directions; and the three-color light in the two channels is combined into white light through the second double-color sheet. The invention has the advantages of simple light combining structure, convenient assembly and debugging of the system, easy manufacture and good heat dissipation of the device, and is particularly suitable for three-color light illumination systems of various apparatuses as an LED light source illumination module.

Description

technical field [0001] The invention relates to a light combining system of LED three-color light, belonging to the technical field of photoelectric lighting. Background technique [0002] Now the commonly used light source in industry is mercury lamp, which has the disadvantages of short life, high power consumption, and not being environmentally friendly. The existing three-channel color combination system of LED red, green and blue three-color light that can be used to replace mercury lamps is as follows: figure 1 As shown, the system consists of red LED, red light cone, red light uniform rod, red light relay lens group, green LED, green light cone, green light uniform rod, green light relay lens group, It is composed of blue LED, blue light cone, blue light homogenizing rod, blue light relay lens group and X-prism. There are two orthogonal filter films f1 and f2 in the middle of the X-prism. The filter film f1 reflects red light and transmits red light. Through blue an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V13/00F21V1/00F21V5/04F21V7/00H01L33/00F21Y101/02
Inventor 辜长明郑耀赵媛媛唐伟李增光
Owner QINGDAO NOVELBEAM TECH