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Light source module and projection device

A technology of light source module and projection device, which is applied in the direction of projection device, optics, optical components, etc., to achieve the effect of easy adjustment

Active Publication Date: 2020-12-22
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coordinate points of the blue beam provided by the blue laser light source commonly used in projection devices at present are slightly different from the coordinate points of the blue beam of the common standard color gamut specification in the CIE 1931 color space chromaticity diagram

Method used

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  • Light source module and projection device
  • Light source module and projection device
  • Light source module and projection device

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Experimental program
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Embodiment Construction

[0018] The aforementioned and other technical content, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

[0019] Figure 1A For a schematic diagram illustrating a projection device according to an embodiment of the present invention, please refer to Figure 1A . In this embodiment, the projection device 100 includes a light source module 110 , an imaging element 120 and a projection lens 130 . The light source module 110 is suitable for providing an illumination beam IW as a beam for projecting images. The imaging element 120 is disposed on the light path of the illumination beam IW, and the...

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Abstract

A light source module including a blue laser light source, an adjusting light source, a wavelength conversion device, and a light combiner is provided. The wavelength conversion device is disposed on an optical path of a first blue beam provided by the blue laser light source and an optical path of an adjusting beam provided by the adjusting light source. When a first transmissive area of the wavelength conversion device is cut into the optical path of the first blue beam, the blue laser light source and the adjusting light source are simultaneously turned on. A transmission direction of the first blue beam passing through the first transmissive area is opposite to a transmission direction of the adjusting beam passing through the first transmissive area. The light combiner combines the first blue beam and the adjusting beam into a second blue beam. Moreover, a projection apparatus is provided. The light source module and the projection apparatus in the invention may adjust a blue beam complied with a wider color gamut specification, and is easy to achieve an image with wider color gamut.

Description

technical field [0001] The present invention relates to an optical module and a display device, and in particular to a light source module and a projection device. Background technique [0002] In recent years, projection devices using laser diodes (laser diodes) as solid-state light sources have gradually gained a place in the market. In addition to using the laser emitted by the laser light source to excite phosphors to generate stimulated light, the laser projection device can also directly use laser as the illumination source of the projection device. In a typical projection device architecture, a blue laser excites phosphors on a fluorescent color wheel that can be converted into green or yellow light beams to generate green or yellow light beams. The green beam passes through the green filter on the filter color wheel to produce a green beam that meets the requirements. Part of the yellow light beam passes through the red filter to form a red light beam, and part of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20
CPCG03B21/2013G03B21/204G02B26/008G03B21/20G03B21/2066G03B21/2073G02B26/00
Inventor 王纪勋陈昌炫
Owner CORETRONIC