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Laser projector and method

A laser projector and laser technology, applied in optics, instruments, projection devices, etc., can solve the problems of unreasonable design of the laser excitation light source shaping unit, etc., and achieve the goal of reducing spatial coherence, high illumination uniformity, and eliminating visual comfort effect of influence

Pending Publication Date: 2020-06-05
中航国画(上海)激光显示科技有限公司
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Problems solved by technology

The disadvantage is that the design of the shaping unit on the output side of the laser excitation light source is unreasonable

Method used

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  • Laser projector and method
  • Laser projector and method

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Embodiment Construction

[0034] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0035] See Figures 1 to 3 , shown in the figure is a new type of two-color laser projector. The two-color laser projector is mainly composed of a blue laser unit 1, a red laser unit 2, a first Cassegrain optical unit 3, a second Cassegrain optical unit 4, a fluorescent wheel unit 5, a color wheel unit 6 and telecentric lighting The optical path unit 7 and the like are composed.

[0036] The blue laser unit 1 has a blue laser.

[0037] The red laser unit 2...

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Abstract

The invention discloses a laser projector and method. The projector comprises a first laser unit which is provided with a first color laser, a first Cassegrain optical unit which is arranged on the output side of a first excitation light source unit and used for converting the non-parallel light beams output by the first laser unit into parallel light beams, a second laser unit having a second color laser, and a second Cassegrain optical unit which is arranged on the output side of a second excitation light source unit and used for converting the non-parallel light beams output by the second laser unit into parallel light beams. The laser projector provided by the invention has the advantages that the first Cassegrain optical unit (second Cassegrain optical unit) is used for shaping the first laser unit (second laser unit), and parallel light with a certain size of light spots is formed.

Description

technical field [0001] The present invention relates to projection equipment, in particular, a laser projector and method. Background technique [0002] Chinese invention patent application CN106324958A discloses "a fluorescent conversion system", which includes a laser excitation light source, a fluorescent wheel, and a first lens assembly and a second lens assembly respectively located on the front and back of the fluorescent wheel. The disadvantage is that the design of the shaping unit on the output side of the laser excitation light source is unreasonable. Contents of the invention [0003] The technical problem to be solved by the present invention is the drawback of the prior art, and a novel laser projector and method are provided. [0004] In order to achieve this goal, the technical solution of the present invention is as follows: a laser projector, comprising, [0005] a first laser unit having a first color laser; and, [0006] A first Cassegrain optical uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/204G03B21/2066G03B21/208
Inventor 温得银喻斌
Owner 中航国画(上海)激光显示科技有限公司
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