Article ID Journal Published Year Pages File Type
10408770 Optics and Lasers in Engineering 2005 10 Pages PDF
Abstract
We report a method measuring 3-D displacement of cambered mirror for cryogenic optical system using white light speckle photography with double light sources and double cameras. Data acquiring and processing based on a digital image processing system is described. The 3-D displacement and displacement vector distributions in two low-temperature ranges are measured.
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Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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Measurement of 3-D displacement of cambered mirror of cryogenic optical system using white light speckle method
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