MAKING ASPHERICAL MIRRORS BY THIN-FILM DEPOSITION

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28262

Title:	MAKING ASPHERICAL MIRRORS BY THIN-FILM DEPOSITION
Authors:	LEE,CC;WAN,DS;JAING,CC;CHU,CW
Contributors:	光電科學研究所
Date:	1993
Issue Date:	2010-06-29 19:45:05 (UTC+8)
Publisher:	中央大學
Abstract:	An aspherical mirror is made by a thin-film coating technique. A special mask is placed between the evaporation source and the substrate that is to be coated as an aspheric. The design principle of the mask is fully described. An ion-assisted deposition technique is used to relieve aluminum film stress and to increase surface reflectance. The final wave front is tested by conventional interferometric methods for aspherics. Less than one-fifth of a wave (632.8 nm) of spherical aberration is achieved without much trial and error.
Relation:	APPLIED OPTICS
Appears in Collections:	[Graduate Institute of Optics and Photonics] journal & Dissertation

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