CN202649661U - Laser projection display device - Google Patents

Abstract

The utility model discloses a laser projection display device. The laser projection display device includes red, green, and blue semiconductor laser light sources, three coupling optical fibers, an optical fiber-bunching sleeve, a light adjusting frame and a DLP projection assembly; the red, green, and blue semiconductor laser light sources are in one-to-one correspondence with the three coupling optical fibers, and red, green, and blue semiconductor lasers are outputted by the coupling optical fibers; the output ends of the three coupling optical fibers are enveloped together by the optical fiber-bunching sleeve to form a bunched white laser; the optical fiber-bunching sleeve is arranged on the light adjusting frame; the light adjusting frame which has two-dimensional angle adjustment and two-dimensional translational adjustment functions is mainly used for adjusting the output direction of the bunched laser; the red, green, blue semiconductor lasers are outputted through the coupling optical fibers in a bunched manner to form the white laser, and the projection display of the white laser can be realized through a color wheel, an optical assembly, a DMD and a projection lens in the DLP projection assembly and under the control of a control system. The laser projection display device of the utility model has the advantages of low energy consumption, long service life, high brightness, clearer projected image and more vivid colors.

Description

A kind of laser projection display apparatus

Technical field

The utility model relates to a kind of laser projection display apparatus, relates in particular to the small-sized projector equipment of low-power consumption high brightness, belongs to shadow casting technique's application.

Background technology

Commercial and home-use most of projector mainly adopts the light fixtures such as metal halid lamp or ultrahigh pressure mercury lamp as the white light source of Projection Display at present, projection bulb is the of paramount importance consumptive material of projector, and its performance quality is directly determining sharpness and the brightness of projected image.Along with the prolongation of projection working time, the brightness of bulb can constantly reduce naturally, thus the image definition of impact projection, so bulb life and higher maintenance cost of later stage become the problem that highlights of existing projector; In addition, in order to obtain the display effect of high brightness, often to improve the lumen degree of light fixture, for projection light source, the luminous flux how many luxs its every watt electric weight can obtain is certain, therefore its lumen degree is directly proportional with electric power, and brightness (lumen) is higher, and power consumption is larger, heat dissipation capacity is larger, exhaust air rate is larger, and noise is larger, is the another problem that highlights that existing projector exists.

Along with the quick and marketing development of red, green, blue semiconductor laser product, laser becomes a kind of trend gradually as the light source of Projection Display.Laser projection shows to be compared with traditional bulb projection display technique: have larger gamut range; Laser monochromaticity is good, and laser is line spectrum, has high color saturation, so that color is truer, more bright-coloured; Laser direction is good, and the divergence of light beam is little, can improve the sharpness of image; Power consumption is little, and reach up to ten thousand hours serviceable life, thereby becomes the significant development direction in demonstration field.

Summary of the invention

The purpose of this utility model is the above-mentioned shortcomings that exists in order to overcome existing projector light source, provides that a kind of low energy consumption, high brightness, color are more bright-coloured, the laser projection display apparatus of long service life.

The technical solution of the utility model is, a kind of laser projection display apparatus is characterized in that, this laser projection display apparatus comprises red, green, blue three look semiconductor laser light resources, three coupled fibers, bundle light sleeve pipe, light adjusting bracket, DLP projecting subassembly; Described red, green, blue three look semiconductor laser light resources are corresponding one by one with three coupled fibers respectively, and red, green, blue three look semiconductor lasers are exported by coupled fiber; The output terminal of described three coupled fibers forms an output white light laser that closes bundle by bundle light sleeve pipe big envelope together; Describedly make three coupled fibers close bundle bundle light sleeve pipe together to be installed on the light adjusting bracket; Described smooth adjusting bracket has the two dimension angular adjusting and two-dimension translational is regulated, and is mainly used in regulating the outbound course that closes Shu Jiguang; Described red, green, blue semiconductor laser is through coupled fiber and close colour wheel, optical module, DMD and the projection lens of white light laser in the DLP projecting subassembly of bundle output, realizes Projection Display under the control of control system.

The beneficial effects of the utility model are: a kind of laser projection display apparatus is provided, overcome the shortcomings such as conventional projector is large as the power consumption that light source exists with bulb, the life-span is short, thereby affect the problems such as the sharpness of projected image and brightness, provide that a kind of low energy consumption, high brightness, color are more bright-coloured, the laser projection display apparatus of longer service life.

Description of drawings

Fig. 1 is the laser projection display apparatus principle schematic.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.A kind of laser projection display apparatus, by shown in Figure 1, a kind of laser projection display apparatus, be characterized in, this laser projection display apparatus comprises red, green, blue three look semiconductor laser light resources 11,12,13, three coupled fibers 21,22,23, bundle light sleeve pipe 3, light adjusting bracket 4, DLP projecting subassembly 5; Described red, green, blue three look semiconductor laser light resources are corresponding one by one with three coupled fibers respectively, and red, green, blue three look semiconductor lasers are by three coupled fiber outputs; The output terminal of described three coupled fibers forms an output white light laser that closes bundle by bundle light sleeve pipe big envelope together; Describedly make three coupled fibers close bundle bundle light sleeve pipe 3 together to be installed on the light adjusting bracket 4; Described smooth adjusting bracket 4 has the two dimension angular adjusting and two-dimension translational is regulated, and is mainly used in regulating the outbound course that closes Shu Jiguang; Described DLP projecting subassembly 5 comprises colour wheel 51, optical module 52, DMD 53, projection lens 54 and control system 55; Colour wheel is used for color separation, tells the three primary colours light of conversion; Optical module is mainly used in transmission and the optically focused of light beam; " DLP " is the abbreviation of " Digital Light Procession ", is digital light and processes, and is the digital processing of signal of video signal process, light projected again; DMD is the abbreviation of " Digital Micromirror Device ", and Chinese full name is " digital micro-mirror chip ", and it is TI(Texas Instruments) digital micromirror elements of company exploitation is the main crucial treatment element of realizing the digit optical processing procedure.Described red, green, blue semiconductor laser 11,12,13 is realized Projection Display through coupled fiber 21,22,23 and close colour wheel 51, optical module 52, DMD53 and the projection lens 54 of laser in DLP projecting subassembly 5 of bundle output under the control of projection control system 55.

Described red, green, blue semiconductor laser 11,12,13 power can be modulated, thereby can modulated red, the blending ratio of indigo plant, green three looks, make to close that the laser of output is white light behind the bundle.

Claims (2)

1. a laser projection display apparatus is characterized in that, this laser projection display apparatus comprises red, green, blue three look semiconductor laser light resources, three coupled fibers, bundle light sleeve pipe, light adjusting bracket, DLP projecting subassembly; Described red, green, blue three look semiconductor laser light resources are corresponding one by one with three coupled fibers respectively, and red, green, blue three look semiconductor lasers are exported by coupled fiber; The output terminal of described three coupled fibers forms an output white light laser that closes bundle by bundle light sleeve pipe big envelope together; Describedly make three coupled fibers close bundle bundle light sleeve pipe together to be installed on the light adjusting bracket; Described smooth adjusting bracket has the two dimension angular adjusting and two-dimension translational is regulated, and is mainly used in regulating the outbound course that closes Shu Jiguang; Described red, green, blue semiconductor laser is through coupled fiber and close colour wheel, optical module, DMD and the projection lens of white light laser in the DLP projecting subassembly of bundle output, realizes Projection Display under the control of control system.

2. laser projection display apparatus according to claim 1, it is characterized in that, described DLP projecting subassembly (5) is that digital light processing components (5) is through digital processing signal of video signal, light is projected, described DLP projecting subassembly (5) comprises colour wheel (51), optical module (52), DMD(53 again), projection lens (54) and control system (55); Described DMD is the digital micro-mirror chip, is to realize the digit optical treatment element.

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