DEVICE FOR DETERMINATION OF DEGREE OF EYE FATIGUE Russian patent published in 2006 - IPC F41G3/00 A61B5/16 

FIELD: means for measurement of psychological characteristics, in particular, devices for determination of the degree of eye fatigue at sighting of various objects.

SUBSTANCE: the device has an operator's control panel, optical forming system, the first and second control units, screening unit, series-connected power source, brightness variation unit, adder, low-frequency filter, sighting index illumination unit, light filters unit and a sighting index forming unit, as well as a generator of periodic signals with their adjustment unit, transducers and indicators of amplitude and frequency. The device has an additional screening unit, deviation sensor, light interference sensor, frequency comparison unit, and a unit for production of a point light source, and a drive of the pint light source with respective couplings.

EFFECT: enhanced truth of estimation of the state of operators.

1 dwg