Abstract

This paper discusses layouts for measuring the refractive indices of optical glass that can be implemented on automatic goniometer-spectrometers based on a ring laser. As a result of a comparative analysis, it is established that a layout with a movable prism and a fixed mirror possess advantages.

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Prism-pair interferometer for precise measurement of the refractive index of optical glass by using a spectrum lamp

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Accurate Measurement of Refractive Indices

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