White light laser and projection type white light device

Abstract

The invention provides a white light laser and a projection type white light device, which belong to the technical field of laser light-emitting devices. The white light laser comprises a heat conduction sealing cap, a heat sink table, a laser light-emitting chip and a fluorescent lens. An emission cavity is formed in the heat conduction sealing cap, a first installation opening communicated withthe emission cavity is formed in the first end of the heat conduction sealing cap, and a second installation opening communicated with the emission cavity is formed in the second end of the heat conduction sealing cap. The heat sink table is connected with the first end of the heat conduction sealing cap and seals the first installation opening. The laser light-emitting chip is arranged in the emission cavity and connected with the heat sink table. The fluorescent lens is connected with the second end of the heat conduction sealing cap and seals the second installation opening, and the fluorescent lens and the laser light-emitting chip are oppositely arranged in a spaced mode and used for converting laser emitted by the laser light-emitting chip into white light. The structure is simple, the heat dissipation effect of the conversion structure is good, and working stability is good. The projection type white light device comprises a white light laser, a dichroic mirror arranged on the light emitting side of the white light laser and an optical switch lens arranged on the light emitting side of the dichroic mirror.

Description

technical field [0001] The present application relates to the technical field of laser light emitting devices, and in particular, to a white light laser and a projected white light device. Background technique [0002] In recent years, due to the rapid development of semiconductor lasers LD and pumped all-solid-state lasers DPL, lighting and display light-emitting devices mostly use lasers as excitation light sources. At present, the following methods are usually used to obtain white light after excitation: one is to synthesize white light with red, green, and blue primary color lasers. Due to the use of multiple color lasers for light distribution and mixing, the white light laser device has a complex structure and a large volume. High control requirements. The other uses a laser to emit monochromatic laser light, and then uses a fluorescent material to convert the monochromatic laser light into white light. In the prior art, a fluorescent color wheel driven by a motor is ...

AI Technical Summary

Problems solved by technology

At present, the following methods are usually used to obtain white light after excitation: one is to synthesize white light with red, green, and blue primary color lasers. Due to the use of multiple color lasers for light distribution and mixing, the white light laser device has a complex structure and a large volume, and it is harmful to the circuit. High control requirements

The other uses a laser to emit monochromatic laser light, and then uses a fluorescent material to convert the monochromatic laser light into white light. In the prior art, a fluorescent color wheel driven by a motor is usually used to convert the monochromatic laser light, which makes the structure of the white light laser device complex.

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