LASER BEAM GUIDANCE DEVICE Russian patent published in 2004 - IPC

FIELD: optoelectronic equipment used for laboratory tests of articles subjected to influence of outside disturbance factors. SUBSTANCE: the device has an autocollimator and a video scanner consisting of a laser with adjusting mirrors and a semi-transparent frosted screen having a center hole and a central reticule of strokes, with a grid applied along them and made in the form of twinned squares. The autocollimator, laser and the adjusting mirrors are located in a single case so that that the laser optical axis coincides with the autocollimator video axis, and the screen is positioned before the autocollimator so that the video axis of the autocollimator passes through the center of the screen hole. The observation field of the video scanner is calculated according to the claimed formula. EFFECT: enhanced observation field, reduced time of guidance. 5 dwg