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LIQUID-CRYSTAL POINT-DIFFRACTION INTERFEROMETER FOR WAVE-FRONT MEASUREMENTS

机译:用于波前测量的液晶点衍射干涉仪

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A new instrument, the liquid-crystal point-diffraction interferometer [LCPDI], is developed for the measurement of phase objects. This instrument maintains the compact, robust design of Linnik's point-diffraction interferometer and adds to it a phase-stepping capability for quantitative interferogram analysis. The result is a compact, simple to align, environmentally insensitive interferometer capable of accurately measuring optical wave fronts with very high data density and with automated data reduction. We describe the theory and design of the LCPDI. A focus shift, was measured with the LCPDI, and the results are compared with theoretical results. (C) 1996 Optical Society of America. [References: 26]
机译:开发了一种新的仪器,液晶点衍射干涉仪[LCPDI],用于测量相位物体。该仪器保持了Linnik点衍射干涉仪的紧凑,坚固设计,并为定量干涉图分析增加了相位步进能力。结果是紧凑,易于对准,对环境不敏感的干涉仪,该干涉仪能够以非常高的数据密度和自动的数据缩减来精确地测量光波前。我们描述了LCPDI的理论和设计。使用LCPDI测量了焦点偏移,并将结果与​​理论结果进行了比较。 (C)1996年美国眼镜学会。 [参考:26]

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