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Decoherence device

A phase change, laser technology, applied in identification devices, laser cooling devices, laser parts and other directions, can solve problems such as complex structures

Inactive Publication Date: 2009-12-02
SINOLASER PROJECTION TECH
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  • Description
  • Claims
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Problems solved by technology

However, these systems are independent devices, so the structure is relatively complicated

Method used

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  • Decoherence device

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] figure 1 It is a schematic structural diagram of an embodiment of the decoherence device of the present invention.

[0026] The decoherence device of this embodiment is used for the laser 101, and its structure includes: semiconductor cooling chip (TEC) 102,103, heating chamber 104, catheter tube 105, air guide chamber 106, cooling chamber 107, light-transmitting plate 108,109 , the thermal insulation cladding 111 and the heat sink 112 . The cold end surface of the TEC 102 is thermally connected to the bottom of the laser 101 , and the hot end surface of the TEC 102 is thermally connected to the heating chamber 104 . Wherein, the bottom of the laser 101 may also be provided with a heat sink, and the TEC 102 is thermally connected to the laser 101 through the heat sink. The front end of the heating cavity 104 (here, the end of the lase...

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Abstract

The invention provides a device which uses waste heat produced when a laser works to reasonably eliminate laser coherence. The invention uses heat produced when a laser works to heat phase change working medium, and realizes decoherence process to laser beams generated by a laser via cyclic motion of working medium in an annular cavity; thus, the invention not only reasonably uses resources, but also designs a cooling device with a decoherence device together so as to ensure compact structure of a laser display device as well as obtain better decoherence effect.

Description

technical field [0001] The invention relates to the field of laser display, in particular to a decoherence device for lasers. Background technique [0002] Due to its high brightness, monochromaticity and directivity, laser has incomparable advantages in the field of display. Laser is coherent. If it is directly projected as a light source without decoherence processing, we will see an image with obvious interference fringes on the receiving screen, which is the so-called speckle, which greatly affects the image quality, so in In laser display technology, decoherence is an essential step. The current decoherence methods include vibrating screens, vibrating optical mirrors, using rotating diffuse reflectors, or adopting holographic methods, etc. However, these systems are all independent devices, so the structures are relatively complicated. Contents of the invention [0003] In view of the above deficiencies, the present invention provides a decoherence device for laser...

Claims

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Application Information

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IPC IPC(8): H01S3/02H01S3/04H01S3/00H01S5/02H01S5/024H01S5/00G02B27/00G09F9/30
Inventor 许江珂石靖波贾中达
Owner SINOLASER PROJECTION TECH
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