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Chin. Opt. Lett.
 Home  List of Issues    Issue 06 , Vol. 04 , 2006    Research on wavefront error of prism induced by thermoelastic distortion


Research on wavefront error of prism induced by thermoelastic distortion
Anhu Li1;2, Jianfeng Sun1, Liren Liu1
1[Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences], Shanghai 201800
2[Graduate School of the Chinese Academy of Sciences], Beijing 100039

Chin. Opt. Lett., 2006, 04(06): pp.323-325-3

DOI:
Topic:Instrumentation, measurement, and metrology
Keywords(OCIS Code): 120.4640  120.6810  230.5480  

Abstract
To meet the design and usage requirements of the precision light beam scanner, the thermoelastic distortion of prism is detailedly analyzed by the thermal-structure coupling method, the influence of which, on the surface deformations of prism, is conclusively proved far greater than that of only the gravity load without temperature fluctuation. With the temperature fluctuation from 20 to 20.5 Celsius degrees, the strains as well as the stresses appropriately eightfold increase, which right accords with the actual results measured by Zygo Mark interferometer with the error of not over 10%. Therefore some strict temperature-controlled measures are necessary for the scanner.

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Received:2005/11/4
Accepted:
Posted online:

Get Citation: Anhu Li, Jianfeng Sun, Liren Liu, "Research on wavefront error of prism induced by thermoelastic distortion," Chin. Opt. Lett. 04(06), 323-325-3(2006)

Note: This work was supported by the Optical Science and Technology Program of Shanghai under Grant No. 046105004. A. Li's e-mail address is yfliah@yahoo.com.cn.



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