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Lamination type granite substrate heavy-calibre optical reflector

An optical reflection and granite technology, applied in the field of applied optics, can solve problems such as poor surface processing performance of aluminum materials, high cost of aluminum castings, and limited optical performance of reflectors.

Inactive Publication Date: 2012-01-18
SUNCORE PHOTOVOLTAIC TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface processing performance of aluminum is not good, the expansion coefficient of aluminum is higher, the thermal stability is worse than that of glass, and the cost of aluminum castings is higher
The optical performance of mirrors made of aluminum has certain limitations

Method used

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  • Lamination type granite substrate heavy-calibre optical reflector
  • Lamination type granite substrate heavy-calibre optical reflector
  • Lamination type granite substrate heavy-calibre optical reflector

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] like figure 1 As shown, the present invention is a film-coated granite base large-diameter optical mirror, which includes an optical mirror body 1, which can be a plane mirror body, a spherical collimating mirror body, or an aspheric surface Collimating mirror body.

[0018] The optical mirror body 1 is made of granite with low expansion coefficient.

[0019] like figure 2 As shown, the reflective surface of the optical mirror body 1 is physically treated, that is, a high-reflectivity aluminum film 11 is pasted on the reflective surface, thereby forming a high-reflectivity reflective layer 11 on the reflective surface.

[0020] like image 3 As shown, the reflective surface of the mirror body 1 is physically treated, that is, a metal film system with high reflectivity is coated on the reflective surface, so that a layer of reflective layer 11 with high reflectivity is formed on the reflective surface.

[0021] The invention proposes a method of using granite to rep...

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PUM

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Abstract

The invention discloses a lamination type granite substrate heavy-calibre optical reflector which comprises an optical reflection mirror body, wherein the optical reflection mirror body is made of granite with low expansion coefficient. Because a plane reflection mirror body, a spherical surface collimating reflection mirror and a non-spherical surface collimating reflection mirror are made of the granite, and the granite has lower expansion coefficient, mechanical stability close to that of optical glass, better surface processing property and higher surface precision, and can be produced by adopting a processing device and a processing technology of the optical glass, and large-size granite is easy to obtain, thus manufacture cost of the lamination type granite substrate heavy-calibre optical reflector can be greatly reduced.

Description

technical field [0001] The invention belongs to the field of applied optics, in particular to a film-coated granite base large-diameter optical mirror. Background technique [0002] Solar simulators are key equipment used in testing the performance of high-concentration photovoltaic modules on production lines. Usually a flash-type solar simulator is used. The solar simulator is a light source device used to generate simulated sunlight. The spectral matching, transient stability, uniformity, collimation and illuminance of the simulated sunlight generated by it are close to the performance of natural sunlight and need to comply with relevant international standards. [0003] In order to test large-scale modules (such as 1400x1400mm), a simulated solar beam with a large enough diameter (such as a beam diameter of 2000MM) is required. A large-diameter collimating optical system is required to generate a large-diameter parallel beam. Usually a large-diameter spherical or asp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/08G02B7/182B32B9/04B32B15/00
CPCG02B7/183G02B5/10
Inventor 廖廷俤李新南王新桥
Owner SUNCORE PHOTOVOLTAIC TECH
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