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Light source system and projection device thereof

A light source system and laser light source technology, applied in the field of optical lighting, can solve the problems of poor color uniformity of emitted light, difficult lens coating, and high manufacturing cost of projection devices

Active Publication Date: 2017-09-22
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The object of the present invention is to provide a light source system and a projection device, aiming to solve the problems of high manufacturing cost, difficult lens coating, and poor color uniformity of outgoing light in the prior art.

Method used

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  • Light source system and projection device thereof
  • Light source system and projection device thereof
  • Light source system and projection device thereof

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Embodiment Construction

[0026] It should be noted that in the present invention, metameric light refers to multiple lights with different dominant wavelengths but the same color, such as blue lights with dominant wavelengths of 445nm, 455nm, and 465nm, all of which are blue lights with different dominant wavelengths. The narrow-spectrum light in the present invention refers to the range width covered by the spectrum emitted by a single laser. Broad-spectrum light in the present invention means that the width of the spectrum coverage is greater than that of the spectrum emitted by a single laser.

[0027] In order to make the description clearer and easier to understand, the solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] A light source system of the present invention, combined with figure 1 Be explained. The light source system includes a laser light source module 1 for emitting wide-spectrum light of a first color light. ...

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Abstract

The invention belongs to the field of optical lighting, and provides a light source system comprising a laser light source module group which is used for outputting wide spectrum light of the first color light. The laser light source module group comprises at least two lasers which are respectively used for emitting narrow spectrum light. The narrow spectrum light is the metameric first color light. According to the light source system, the problem of uneven color of projection display in the prior art can be solved. The invention also provides a projection device so that the projection cost can be reduced, and manufacturing of the projection device is enabled to be simpler.

Description

technical field [0001] The invention relates to the field of optical illumination, and more specifically, to a light source of a projection device and the projection device thereof. Background technique [0002] In order to project larger images in a shorter projection space, ultra-short-focus projection technology has been widely used in various fields of projection. Reflective ultra-short-focus lens modules are currently the most ideal choice. Ultra-short-focus lens modules include Reflective bowl and projection lens. However, the reflective bowl has very high requirements for coating, because the projection lens in front of the reflective bowl of the ultra-short-focus lens will image an area in front of the reflective bowl to form an intermediate image, and the reflective bowl will continue to image the intermediate image and finally present it on the screen. , so the reflective bowl is a part of the imaging device and participates in imaging, so the reflective bowl is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/28
CPCG03B21/20G03B21/2013G03B21/2033G03B21/204G03B21/28
Inventor 郭祖强金建培王文明李屹
Owner APPOTRONICS CORP LTD
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