Porjector light source and projecting system for improving color reproduction characteristic

Abstract

The invention relates to a projector light source for improving color repeatability, comprising a high brightness luminous body and a parabolic reflector, wherein the high brightness luminous body is mounted in the parabolic reflector which refracts the light emitted by the high brightness luminous body into parallel light for projectors. The projector light source further comprises a plurality of enhanced luminous bodies around the high brightness luminous body for improving light source color rendering property. The invention further relates to a projection system adopting the projector light source. The projector light source combines a high brightness luminous body and a plurality of enhanced luminous bodies, and therefore, the novel project light source has the high luminous efficiency character of the high brightness luminous body and the strong color rendering property of the enhanced luminous bodies. The projection system adopting the novel projector light source with high luminous efficiency and strong color rendering property can improve the image quality of the projection system.

Description

technical field [0001] The invention relates to a projector light source and a projection system, in particular to a projector light source and a projection system which improve color reproducibility. Background technique [0002] At this stage, there are mainly three optical engine technologies for projectors: liquid crystal panel optical engine (LCD), digital light processing engine (DLP) and liquid crystal on silicon engine (LCOS). [0003] Please refer to Figure 4 , Figure 4 Shown is an existing mainstream three-chip liquid crystal panel optical engine (LCD) projection device. The light emitting part 2 of the light source 1 generally adopts an ultra-high pressure mercury lamp or a metal halide lamp, and the light emitted by the parabolic reflector 3 becomes parallel light, and then shoots to the integrating lens 4 . The integrator lens is composed of hawk-eye lenses 4a, 4b, and guides the light emitted from the light source 1 to the liquid crystal panel by projection....

AI Technical Summary

Problems solved by technology

[0009] But the luminous efficiency of red, green and blue light-emitting diodes is not high at present, so this kind of light source can only be used in portable projectors, and in strong light When using it under the environment or under a larger projection screen, the brightness projected by the light-emitting diode light source is unacceptable

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