Large-color-gamut laser light source system integrated through trapped wave beam combination

Abstract

The invention discloses a large-color-gamut laser light source system integrated through trapped wave beam combination. The system comprises a blue laser light source I1, a green-light-reflecting blue-transmitting beam combiner 2, a green laser light source 3, a blue excitation light source 5, a red-light-reflecting blue-green-transmitting beam combiner 6, a fluorescence unit 7 and a red laser light source 9. The light beam emitted by the blue laser light source I1 sequentially passes through the green-light-reflecting blue-transmitting beam combiner 2, a light equalizing sheet I4a, the red-light-reflecting blue-green-transmitting beam combiner 6, a red trapped wave filter 10 and a lens group II11 and enters a light guide tube 12; and the light beam emitted by the green laser light source3 sequentially passes through the green-light-reflecting blue-transmitting beam combiner 2, the light equalizing sheet I4a, the red-light-reflecting blue-green-transmitting beam combiner 6, the red trapped wave filter 10 and the lens group II11 and enters the light guide tube 12. The RGB laser light source coupled integrated system realizes a multi-light-source high-efficiency super-small-size coupling mode, can meet the requirements of a large color gamut Rec.2020, and meanwhile, is high in cost performance and wide in working temperature application range.

Description

technical field [0001] The invention relates to the field of laser projection, in particular to a large-color-gamut laser light source system integrated by notch wave combining, which is applied to lighting, display, stage lighting and the like. Background technique [0002] As one of the most important devices in the display industry, the projector has been widely used in various industries such as education, commerce, engineering, monitoring, simulation training and theater projection since its birth. However, in the current global market, the lamps such as xenon lamps and high-pressure mercury lamps widely used in projectors have short life, poor color, limited brightness, high cost of use, and are not environmentally friendly. It is difficult to keep up with the pace of the times and cannot meet 24 hours / day, 7 days a week continuous work requirements, new industry application requirements such as control and monitoring rooms, large-scale building lighting real scenes, e...

AI Technical Summary

Problems solved by technology

[0005] The existing semiconductor RGB laser diode integrated light source does not meet the requirements of the color gamut Rec.2020. In order to make up for the defect that the existing semiconductor RGB laser diodes are coupled and integrated on the color gamut, the present invention designs a red light notch filter Novel optical optical path, coupling integrated semiconductor RGB laser diode and laser fluorescent unit, proposed a laser close-packed integrated light source system with large color gamut through notch wave combining, which can effectively solve the existing problems that cannot be satisfied by the existing semiconductor RGB laser diode coupled integrated light source Technical issues of color gamut Rec.2020

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