Illumination system and projection equipment

A lighting system and laser projector technology, applied in the field of projection, can solve problems such as uneven beam intensity and uneven illumination of projectors

Pending Publication Date: 2021-09-10
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned lighting system, the intensity of the light beam emitted after being processed by the uniform light component is uneven, resulting in uneven illumination of the projector.

Method used

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  • Illumination system and projection equipment
  • Illumination system and projection equipment
  • Illumination system and projection equipment

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0036] figure 1 is a schematic diagram of the implementation environment involved in the embodiment of the present application, and the implementation environment may include a laser projector 10 and a projection screen 20 .

[0037] The laser projector 10 may include an illumination system 11 and a projection lens 12 . The lighting system 11 is used to provide a light source to the projection lens 12 , and the projection lens 12 is used to project a preset pattern onto the projection screen 20 according to the light source provided by the lighting system 11 .

[0038] The projection screen 20 is used to carry the pattern projected by the projection lens 12 . The projection screen 20 may be made of various materials, such as po...

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Abstract

The invention discloses an illumination system and projection equipment, and belongs to the technical field of projection. The illumination system comprises a light source assembly, a light uniformizing assembly, a prism assembly and a light valve assembly. The light uniformizing assembly comprises a first light uniformizing assembly and a second light uniformizing assembly, and the first light uniformizing assembly and the second light uniformizing assembly are used for uniformizing a first light beam and a second light beam from the light source assembly respectively. And then the homogenized light beam is guided to the prism assembly. The first light beam and the second light beam are the same in color, the light intensity of the first light beam in the first view field of the illumination system is smaller than that of the second light beam, and the light intensity of the first light beam in the second view field of the illumination system is larger than that of the second light beam. Therefore, the light intensities of different light beams can be complemented in the same view field, the problem that the illuminance of the light beams processed by the light uniformizing assembly is not uniform in the prior art is solved, and the effect of improving the illuminance uniformity of the illumination system is achieved.

Description

technical field [0001] The present application relates to the field of projection technology, in particular to an illumination system and projection equipment. Background technique [0002] At present, laser projection technology is a new type of projection display technology on the market. Laser projection display technology has the characteristics of high picture contrast, clear imaging, bright colors and higher brightness. These remarkable features gradually make laser projection display technology become the market. Another mainstream direction of development. With the development of projector technology and market, in order to enable users to have a better viewing experience when using the projector, a projector with more uniform illumination is required. [0003] An illumination system for laser display projection equipment, comprising a light valve, a light source component, a light guide, a prism component and a lens, the light source component emits a light beam, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/208G03B21/2066G03B21/2033
Inventor 阴亮杜玉楠
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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