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  Photometer for microscope

This page describes the construction of a simple photometer to be used with a microscope. The unit allows light intensity measurement of a small crystal positioned at the center of the microscope field in reflectance and transmission modes. Used in conjunction with a monochromator, the photometer becomes a part of a microscope spectrometer. Used in reflection modes with narrow band pass filters, the photometer can be used to measure the reflection coefficient of opaque minerals and thus help their identification.

                                            

Hardware description

Measurement of the reflection coefficients.