GMS-2000 Goniophotometer with Rotating Mirror-Goniophotometer-Zhejiang University SENSING Instruments CO., LTD
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GMS-2000 Goniophotometer with Rotating Mirror

There are three rotation axes in GMS-2000 goniophotometer. A precision reflecting mirror rotates around the horizontal axle and the tested luminaire rotates in the prescribed burning position and around the vertical axle

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There are three rotation axises in GMS-2000 goniophotometer. A precision reflecting mirror rotates around the horizontal axis and the tested luminaire rotates in the prescribed burning position and around the vertical axis, meanwhile, a synchronous axis will rotate toward the opposite direction synchronously. The combined motion of the luminaire and mirror permit light measurement at the direction of any horizontal or vertical angle without tilting the tested luminaire, therefore, the luminaire intensity will be more stable. The photometer head located at a fixed position of the required photometric distance in front  of the reflecting mirror to detect luminous intensity in each direction.

 

Specifications:
Burning point working state of luminaire is constant during test
Constant light beam and low stray light with eliminated by multiple long distance baffle
The light beam perpendicularly incidents on the detector
Airflow movement is less than 0.2m/s, which meets the requirement of CIE 121
High accuracy detector and spectoradiometer, which meets the requirements of spatial non-uniformity of chromaticity in IES LM79-08