Proceedings PaperNew applications of holographic grating in optical test
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Using holographic grating as multiple beam generator the new applications of holographic grating in focal length, curvature radius of spherical mirror, astigmatism, distortion, curvature radius of convergent wavefront measurements are reported, some experiments and analyses of related problems are presented in this paper. It is shown that many parameters can be measured accurately using holographic gratings. Holographic grating (HG) is a sinusoidal grating and has many advantages, e.g., compact, lightweight, easily making, low cost, free ruling error and ghosts etc., it is generally used as a dispersion element in monochrometer and beam splitter in interferometry or diffraction interferometer. In this paper, the new applications of HG in optical test are described and some experiment results are reported.