DEVICE FOR DETERMINATION OF STEREOSCOPIC VISION THRESHOLD Russian patent published in 1998 - IPC

FIELD: optoelectronic instrumentation engineering, medicine, geodesy. SUBSTANCE: device has polarizing spectacles, stereoscopic diascope, stereo-pair with picture of figure on randomized background, and metallized screen. Stereo-pair frames are made changeable, with arbitrary number of figures of arbitrary form, and elements of randomized background on left- and right-hand frames of stereo-pair do not coincide with each other, reading origin mark is applied on every frame. Device also has optical compensator with reading system, automatic and manual systems of reading origin setting, mechanism of adjustment by eye base, electronic unit, changeable color light filters, and manual drive mechanism. Polarizing light filters are made changeable. EFFECT: higher accuracy of determination of stereoscopic vision acuity. 1 dwg