Laser light source light beam parameter consistency adjusting device and adjusting method thereof

A technology of laser light source and adjustment device, applied in projection device, image reproducer of projection device, optics, etc., can solve the problems of high production cost, inability to flexibly adjust the internal structure of projection display device, inability to improve light transmission rate, etc.

Inactive Publication Date: 2015-07-29
中能激光显示技术(上海)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention overcomes the defects in the prior art that the internal structure of projection display equipment cannot be flexibly adjusted, the light transmission rate cannot be improved and the production cost is high, and a device for adjusting the consistency of laser light source beam parameters and its adjustment method are proposed

Method used

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  • Laser light source light beam parameter consistency adjusting device and adjusting method thereof
  • Laser light source light beam parameter consistency adjusting device and adjusting method thereof
  • Laser light source light beam parameter consistency adjusting device and adjusting method thereof

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Embodiment Construction

[0036] The present invention will be further described in detail in conjunction with the following specific embodiments and accompanying drawings. The process, conditions, experimental methods, etc. for implementing the present invention, except for the content specifically mentioned below, are common knowledge and common knowledge in this field, and the present invention has no special limitation content.

[0037] In order not only to improve the brightness of the projection device, the content involved in the present invention adopts an all-laser light source, and uses a special design structure and a beam shaping lens to couple multiple laser channels to the light source outlet that meets the requirements, and at the same time has an optical extension that meets the requirements quantity.

[0038] Such as figure 1 As shown, the device for adjusting the consistency of laser light source beam parameters in the present invention includes a light source component 1 , a couplin...

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Abstract

The invention discloses a laser light source light beam parameter consistency adjusting device comprising a light source component, a coupling component, a converging lens, and a light diffusing component. The light source component emits laser light beams, including a first light beam, a second light beam and a third light beam. The coupling component comprises a first dichroic light filter and a second dichroic light filter. The first dichroic light filter couples the first light beam and the second light beam into a first coupled light beam, and the second dichroic light filter couples the first coupled light beam and the third light beam into a second coupled light beam. The converging lens is arranged on the optical axis of the second coupled light beam, and converges the second coupled light beam on the light diffusing component. The light diffusing component emits the second coupled light beam at a fixed divergence angle. By adopting the device, the uniformity of light beams output by a light source is effectively improved, and the utilization efficiency of output light is ensured. The invention further discloses a laser light source light beam parameter consistency adjusting method.

Description

technical field [0001] The invention belongs to the technical field of semiconductor lasers, and in particular relates to a device for adjusting the consistency of beam parameters of a laser light source and an adjustment method thereof. Background technique [0002] In recent years, in projection display devices (or projectors) using liquid crystal panels or digital micromirror chips (DMDs) as display elements, light emitting diodes are gradually used as light source technology, as disclosed in the patent document JP2003-186110A. Although compared with the technology using traditional light sources, using LED light-emitting diodes as a light source can have a series of advantages, but in terms of the spectral purity of the light source, color range, and brightness in the large-screen projection market, projectors that use lasers as light sources are more expensive than projectors. Projection equipment using LED light-emitting diodes as a light source has more obvious advant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/14H04N9/31
CPCG03B21/2033G03B21/208H04N9/3161
Inventor 王蔚生王宇兴牛磊赵彦君
Owner 中能激光显示技术(上海)有限公司
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