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Light source used for laser display

A technology of light source device and laser display, which is applied in the direction of lighting device, coupling of optical waveguide, components of lighting device, etc., to achieve the effect of reducing cost, improving output power, improving reliability and maintainability

Inactive Publication Date: 2008-04-02
PHOEBUS VISION OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to overcome the defects of the light source device of the above-mentioned existing laser display system, thereby providing a high-power, high-stability light source device suitable for large-screen laser display

Method used

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  • Light source used for laser display
  • Light source used for laser display

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Experimental program
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Embodiment 1

[0025] As shown in Figure 1, the light source device used for laser display, the light source includes a red laser light source composed of n red solid-state lasers, represented by Rl-Rn in Figure 1, and a green light composed of m green solid-state lasers The laser light source, represented by G1-Gn in Figure 1, and the blue-ray laser light source composed of k blue solid-state lasers, represented by Bl-Bn in Figure 1, wherein the ratio between n, m, and k should be in accordance with the output power of each laser and display color ratio requirements to set, this is competent for those skilled in the art, such as the present embodiment selects n=6 red light solid-state lasers R1-R6 with a wavelength of 671nm and an output power of 5W; m =3 sets of green solid-state lasers G1-G3 with a wavelength of 532nm and an output power of 1W; and k=4 sets of blue solid-state lasers B1-B4 with a wavelength of 473nm and an output power of 1W.

[0026] The converging device of the present ...

Embodiment 2

[0029] As shown in Figure 2, the light source device for laser display, the light source includes a red laser light source composed of n red semiconductor lasers, represented by Rl-Rn in Figure 2, a green light composed of m green solid-state lasers Laser light source, represented by G1-Gn in Figure 2, and a blue laser light source composed of k blue solid-state lasers, represented by Bl-Bn in Figure 2, wherein the ratio between n, m, and k should be in accordance with the output of each laser Power and display color matching requirements are set, which is competent for those skilled in the art. For example, in this embodiment, n=112 red light semiconductor lasers R1- R112; m=12 green solid-state lasers G1-G12 with a wavelength of 532nm and an output power of 1W and k=3 blue solid-state lasers B1-B3 with a wavelength of 457nm and an output power of 3W. All lasers are placed in parallel.

[0030] The converging device of this embodiment includes a plurality of converging lenses...

Embodiment 3

[0035] In the high-power laser display light source provided in this embodiment, the RGB three-color light sources are composed of two lasers placed in parallel, and the outgoing lights are p-polarized light and s-polarized light, respectively, as shown in Figure 3, R1 and R2 are wavelengths 660nm red semiconductor laser with an output power of 12W; G1 and G2 are green solid-state lasers with a wavelength of 532nm and an output power of 3W; B1 and B2 are blue solid-state lasers with a wavelength of 457nm and an output power of 2W; among them, R1 and G1 The lasers emitted by R1 and B1 are P-polarized light, and the lasers emitted by R2, G2 and B2 are S-polarized light.

[0036]In FIG. 3 , the beam combining system mainly includes a first polarizing beam splitter 11 , a second polarizing beam splitter 12 , a third polarizing beam splitter 13 , a first color combining mirror 9 , and a second color combining mirror 10 .

[0037] Polarizing Beam Splitter (PBS for short) is combined...

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Abstract

The present invention relates to a light source device for laser display system, in particular to a light source device which can satisfy the needs of large screen laser display and high power; the invention comprises RGB tricolor laser light source and a beam device; the laser light source of each fundamental color consists of at least two lasers; the light source device for laser display system breaks through the system framework formed by RGB tricolor lasers in the prior laser display; as the invention adopts an incoherent beam technology, the output power of the light source can be improved through increasing the number of the laser and single laser module can be dismantled and replaced freely, thereby achieving the modularized design of the whole light source device, improving the reliability and maintainability of light source, reducing the cost of light source system and satisfying the need of superlarge laser display in order to develop towards the directions of large screen and high brightness.

Description

technical field [0001] The invention relates to a light source device used in a laser display system, in particular to a light source device capable of meeting large-screen laser display and high power requirements. Background technique [0002] Laser display is a leap-forward development of display technology and a major development direction in the display field. The laser display has a larger color gamut, and the laser is a line spectrum with high color saturation, which can display the most real, richest and most vivid colors in nature. Due to the good directionality of the laser, it can achieve higher display resolution It is the next generation of display technology after black and white display, color display and digital display. [0003] In the prior art, the red, green and blue (RGB) tricolor laser light source used for laser display all adopts a single laser, such as the document: "Comprehensive" published by Liu Weiqi et al. Solid-state laser color video display...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00G02B6/32F21V13/00
Inventor 毕勇亓岩房涛郑光王斌成华
Owner PHOEBUS VISION OPTO ELECTRONICS TECH
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