Laser light source illumination and display system

A display system, laser light source technology, applied in optics, instruments, projection devices, etc., to achieve high light collection efficiency, avoid the trouble of combining light with multiple light paths, and avoid color deviation.

Pending Publication Date: 2018-11-09
李锐
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And there is no problem of alignment of multiple optical paths, which simplifies the design

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  • Laser light source illumination and display system
  • Laser light source illumination and display system
  • Laser light source illumination and display system

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] Please refer to figure 1 As shown, a laser light source lighting and display system includes a laser module 110, a wavelength conversion device 120, and a reflective cup 130; lens (not marked in the figure); the reflective cup 130 is a parabolic surface; the laser receiving end of the wavelength conversion device 120 is installed on the focal point of the parabolic reflective cup 130; the laser receiving end of the wavelength conversion device 120 It i...

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Abstract

The invention relates to a laser light source illumination and display system. The system comprises a laser module, a wavelength conversion device, a reflection cup and a light pipe; and a beam of laser emitted by the laser module is focused on a transmission type fluorescent color wheel to generate light rays with converted wavelength, and the light rays with converted wavelength and part of light rays with original wavelength are collected into the light pipe through the reflection cup. The system has the advantages that the light collecting efficiency is high, and the light rays radiated bythe two sides of the transmission type fluorescent color wheel is collected; the light rays with converted wavelength are directly filtered and purified through coatings on the two sides of the fluorescent color wheel, the other filtering color wheel can be removed, so that the space and the cost are reduced, and meanwhile, the color deviation caused by the matching error of the filtering color wheel is avoided; the angle of the light rays which are finally collected in the light pipe is small, namely, the light spreading amount is small, and the follow-up optical path design of a projector can become simple; and the trouble of multi-optical-path light combining is avoided.

Description

technical field [0001] The invention relates to the field of illumination and projection display, in particular to a laser light source illumination and display system. Background technique [0002] In the current projection market, the brightness of LED light sources has encountered a bottleneck, and the future trend of three-color laser light sources has not yet become popular. The light source form of laser-excited phosphor powder is being increasingly adopted by the majority of projector manufacturers, and has developed A variety of models have been released, which are divided into reflective and transmissive according to the form of the fluorescent color wheel, and there is still a lot of room for optimization. For example, the existing transmissive light source can only collect the light from one side of the fluorescent wheel, wasting the light from the other side, which is inefficient. Due to the large number of lenses, the reflective type causes multiple reflection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/204G03B21/2066
Inventor 李锐
Owner 李锐
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