DEVICE FOR MEASURING OPTICAL PARAMETERS OF ELECTRO-OPTIC DEVICES Russian patent published in 1995 - IPC

FIELD: optical instrument engineering. SUBSTANCE: device has two diffusion radiators, which are made in form of rings with different temperatures, knife, collimator and device for measuring difference in radiation temperatures. The knife is made in form of mirror prism, which is characterized by asymmetrical shape. Working rib of the prism is located at focal plans of the collimator. One face of the prism is connected optically with the first radiator, and the other one is connected with the second radiator. Prism is mounted for linear and angular shift at the plane being perpendicular to optical axis of the collimator, as well as along the axis. Temperature of the radiator may be regulated. EFFECT: improved reliability of operation. 2 cl, 4 dwg