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Device for forming two beams for interferometer - has focusing system forming point source image on diffuser
Device for forming two beams for interferometer - has focusing system forming point source image on diffuser
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机译:用于形成干涉仪的两束光的装置-具有在扩散器上形成点源图像的聚焦系统
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摘要
The device produces two light beams, one of which is diffused and of uniform phase shift w.r.t. the other. It comprises a point light source, a diffuser not containing the light source, and a focusing system which forms the image of the source on the diffuser. The diffuser may be a partially polished piece of rough glass or a speckle plate obtained by photographing the light produced by illuminating a rough piece of glass with a laser beam.
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