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Optical illumination system and laser projection equipment

A lighting system and optical technology, which is applied in the field of projection display, can solve the problems of large volume of laser projection equipment and large volume of optical lighting system, and achieve good display effect, good color uniformity, and reduced volume

Pending Publication Date: 2021-12-31
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the volume of the entire optical lighting system is larger, which in turn leads to a larger volume of the laser projection device.

Method used

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  • Optical illumination system and laser projection equipment
  • Optical illumination system and laser projection equipment
  • Optical illumination system and laser projection equipment

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Embodiment Construction

[0028] 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.

[0029] like figure 1 as shown, figure 1 It is a structural schematic diagram of an optical lighting system provided by the related art.

[0030] The laser 01 in the optical lighting system 00 generally includes multiple laser units for emitting laser light of different colors, for example, red laser light, blue laser light and green laser light can be emitted. In order to ensure the imaging quality of the projected image of the laser device, the number of red laser units is usually more than the number of blue laser units and green laser units. In this way, after combining the laser beams reflected by the light-combining mirror group 02 , the spot size formed by the red laser is larger, while the spot size formed by the blue la...

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Abstract

The invention discloses an optical illumination system and laser projection equipment, and belongs to the field of projection display. The optical illumination system comprises a first laser, a first light combination mirror group and a fly-eye lens. In the optical illumination system, a fly's-eye lens is adopted to homogenize a laser beam, and the fly's-eye lens is composed of micro lenses arranged on a light-in surface and a light-out surface of a glass substrate. Therefore, the size of the fly-eye lens is generally small, and the size of the optical illumination system is effectively reduced. In addition, a beam shrinking lens group and a convergent lens do not need to be arranged in the optical illumination system, and the size of the optical illumination system is further reduced.

Description

technical field [0001] The present application relates to the field of projection display, in particular to an optical lighting system and laser projection equipment. Background technique [0002] With the development of optoelectronic technology, the requirements for the projection screen of laser projection equipment are getting higher and higher. At present, in order to ensure the display brightness of the projection screen, lasers are usually used to provide illumination for laser projection equipment. The laser beam emitted by the laser has the advantages of good monochromaticity and high brightness, and is an ideal light source. [0003] Laser projection equipment can generally include: an optical lighting system and a projection lens. figure 1 It is a structural schematic diagram of an optical lighting system provided by related technologies. The optical lighting system generally includes: laser 01, light combining lens group 02, beam reducing mirror group 03, diffu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/2033G03B21/206G03B21/208
Inventor 颜珂
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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