Double reflection goniophotometer.

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Abstract

A positioning system and photometer as a whole are termed ‘goniophotometer’, which is defined as a specialized instrument for measuring the angular variation of a given photometric level. This paper explains the design and calibration of a new automated goniophotometer based on double reflection in order to reduce the size of the system. This goniophotometer is suitable for measuring several photometric magnitudes (luminance, luminous intensity. . . ) with no need for auxiliary detectors.

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https://v2.sherpa.ac.uk/id/publication/11253

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