IR COLLIMATOR SET Russian patent published in 2007 - IPC G02B27/30 G01M11/02 

FIELD: optics.

SUBSTANCE: IR collimator set has objective, removable test object disposed in focal plane of objective and provided with actuating member, control unit which has output connected with actuating member of background radiator, temperature processor which has output connected with input of control unit, unit for measuring temperature of test object which has output connected with first input of temperature processor, device for measuring temperature difference between background radiator and test object, which has output connected with second input of temperature processor. Environment temperature measuring unit is introduced into device additionally, which unit has output connected to third input of temperature processor. Temperature processor controls value of power voltage of background radiator's actuating member by means of control unit in such a manner than factual value of temperature difference between background radiator and test object coincide with current resulting required value, defined depending on required level of contrast radiation, current temperature of test object and current value of environment temperature to give precision which provides sustain of required level of contrast radiation with admissible error.

EFFECT: improved precision of sustain of contrast radiation level.

1 dwg