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Photochromic point-diffraction interferometer for optical testing

机译:用于光学测试的光致变色点衍射干涉仪

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The principles for the realization of rewritable point-diffraction interferometers (PDIs) based on photochromicpolyurethane films are described. Pinholes of variable sizes (diameter from 4 to 40 μm) have been optically written ontophotochromic substrates converting locally the material from the colored to the uncolored form. The PDIs have beenmounted in an interferometric setup and different reflective optics have been tested. By a controlled bleaching of thesemi-transparent area around the pinhole, an optimal visibility in the interferograms is reached. Under this conditionsseveral tests of reliability of the interferometer have been carried out.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译:描述了基于光致变色聚氨酯薄膜的可重写点衍射干涉仪(PDI)的实现原理。可变尺寸(直径从4到40μm)的针孔已经被光学地写到光致变色衬底上,从而将材料局部地从有色形式转变为无色形式。 PDI已安装在干涉仪中,并且已经测试了不同的反射光学器件。通过围绕针孔的这些半透明区域的受控漂白,可以实现干涉图中的最佳可见性。在这种情况下,已经进行了干涉仪的多次可靠性测试。©(2012)COPYRIGHT光电仪器工程师协会(SPIE)。摘要的下载仅允许个人使用。

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