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.
Original language | English |
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Pages (from-to) | 1127-1136 |
Journal | Optics and Lasers in Engineering |
Volume | 43 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2005 |