The Technique of Aligning the Optical Axis of An Off-axis Parabolic Mirror by Three Rotational Parallel Laser Beams

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Title:	The Technique of Aligning the Optical Axis of An Off-axis Parabolic Mirror by Three Rotational Parallel Laser Beams
Authors:	陳榮燊;Chen, Rung-Sheng
Contributors:	光電與通訊學系
Keywords:	alignment, off-axis parabolic mirror, Slant Focal Length (SFL)
Date:	2011-05
Issue Date:	2012-11-26 02:22:20 (UTC+0)
Abstract:	"In this paper we demonstrate a new technique in which we use the three parallel laser beams alignment device and the CCD camera to rapidly and accurately align the optical axis of an off-axis parabolic (OAP) mirror. In this method the optical axis of an OAP mirror is made parallel to the “three incident laser beams” in the plane of incidence, by checking direction of these three reflected laser beams and changing the height and orientation of the OAP mirror. This fast aligning method for finding the optical axis of an OAP mirror can measure the Slant Focal Length deviation to an accuracy of 0.2％ ."
Relation:	Journal of Chung Cheng Institute of Technology
Appears in Collections:	[Department of Photonics and Communication Engineering] Journal Article

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