Light source device and laser projector

A light source device and laser technology, applied in the laser field, can solve the problems of speckle and low light imaging quality of the light source device, and achieve the effects of avoiding speckle phenomenon, improving the quality of light imaging, and weakening the coherence effect

Active Publication Date: 2019-08-30
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a light source device and a laser projector, which can solve the problem in the related art that among the light emitted by the light source device, the light with a longer wavelength may cause speckle phenomenon, resulting in a lower imaging quality of the light emitted by the light source device

Method used

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  • Light source device and laser projector
  • Light source device and laser projector
  • Light source device and laser projector

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Experimental program
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Embodiment 1

[0098] Figure 5 It is a flow chart of a driving method of a light source device provided by an embodiment of the present invention. In this embodiment, the driving method of a light source device is applied to figure 2 The light source device 20 in the illustrated implementation environment is used as an example, the light source device includes a control module, a digital-to-analog conversion module, a selection module and at least three laser components, and the at least three laser components include a first laser component and at least two second laser components. In the laser assembly, the first laser assembly is used to emit a first color light, and at least two second laser assemblies are respectively used to emit at least two second color lights with different wavelengths. The driving method of the light source device may include the following steps:

[0099] Step 601: Send out a first power signal corresponding to the first color light and at least two second digit...

Embodiment 2

[0152] Figure 12 It is a schematic structural diagram of a driving circuit of a light source device provided by an embodiment of the present invention. The light source device includes a control module 21, a digital-to-analog conversion module 22, a selection module 23 and at least three laser components 24, and the at least three laser components 24 include the first A laser assembly 241 and at least two second laser assemblies 242, the first laser assembly 241 is used to emit a first color light, and the at least two second laser assemblies 242 are respectively used to emit at least two second color lights with different wavelengths ,

[0153]The control module 21 is used to send out a first power signal corresponding to the first color light and at least two second digital power signals respectively corresponding to at least two second color lights;

[0154] The digital-to-analog conversion module 22 is used to convert at least two second digital power signals into at lea...

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Abstract

The invention discloses a light source device and a laser projector, which belong to the technical field of laser. At least two second laser components are controlled by at least two second digital power signals corresponding to at least two kinds of second color light respectively. The at least two second laser components are used for emitting at least two kinds of second color light with different wavelengths, and the coherence effect is weakened due to the different wavelengths of different kinds of second color light. The problem of low imaging quality of light emitted by the light sourcedevice in the related technology is solved. The imaging quality of light is improved.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201810745077.X and the invention title "Drive method of light source device, light source device and laser projector" filed on July 09, 2018, the entire contents of which are incorporated by reference in this application. technical field [0002] The invention relates to the field of laser technology, in particular to a driving method of a light source device, a light source device and a laser projector. Background technique [0003] At present, a laser projector may include an optical path device, a light source device, and an optical-mechanical lighting device. The light source device is used to provide a laser light source. The laser light emitted by the laser light source excites light of other colors, as well as the selection of light of different colors. The light-mechanical lighting device is used to output the light modulated by the light path device. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/2013G03B21/2053G03B21/204
Inventor 崔荣荣郭大勃
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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