ANGLE MEASUREMENT DEVICE Russian patent published in 2012 - IPC G01B11/26 G01C1/00 G01C21/24 

FIELD: electricity.

SUBSTANCE: device comprises a lens, a matrix photodetector device (PDD), a calculation unit and a channel of a geometric reference in the form of a lighting unit, a collimator unit and a mirror-prism unit that introduces radiation from the lighting unit into the lens. The lighting unit is arranged in the form of three sources of light installed in front of input diaphragms and arranged at the angle of 120° to each other. The collimator unit is arranged in the form of three input and three output point diaphragms arranged on the rear face of the mirror-prism unit, which faces the lens, outside its inlet pupil, and is rigidly connected to the support surface of the device. The mirror-prism unit is a single monoblock in the form of parallel smaller front and larger rear hexagonal faces, adjacent ribs of which are arranged at the angle of 120° to each other and form six side mirror faces. The front face is arranged as capable of reflecting rays developed by a lighting unit and input holes of the collimator unit. The lens on the sensitive site of the PDD generates dot element images of the geometric reference channel, and additionally dot element images received from beams reflected by the front face of the mirror-prism unit.

EFFECT: creation of a sight line of a device, position of which does not depend on inclination of a sensitive site of a PDD with provision for consideration of star image scale variation on a sensitive site of a PDD.

4 cl, 6 dwg, 1 app