Precision measurement device and method for optical material refractive index
A technology for precision measurement and optical materials, which is applied in measurement devices, optical devices, phase influence characteristic measurement, etc. It can solve problems such as narrow application fields, inability to achieve non-destructive online measurement of optical materials to be measured, and critical angle differences, etc. The effect of measurement accuracy
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[0047] The present invention will be further described below with reference to the drawings and specific embodiments.
[0048] Such as figure 1 As shown, a transmissive precision measuring device for the refractive index of optical materials includes a broad-spectrum light source 1, a first beam splitter 21, a second beam splitter 22, an optical power meter 3, a first high reflector 41, and a second high Mirror 42, tested sample 5, two-dimensional PSD (i.e., two-dimensional position sensitive detector) 6, two-dimensional precision moving object platform 7, angular displacement platform 8, lens 10, spectrometer 11, platform controller 12, and computer 13 . The platform controller 12 is a platform controller of the Zolix SC300 series.
[0049] The output light path of the broad spectrum light source 1 is provided with a first beam splitter 21, the reflection light path of the first beam splitter 21 is provided with an optical power meter 3, and the transmission light path of the fir...
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