DEVICE TO CONTROL PARALLELISM OF OPTICAL AXES Russian patent published in 2011 - IPC G01M11/02 G01B11/27 

FIELD: physics.

SUBSTANCE: proposed device comprises system of prisms with inlet and outlet pupils and radiation source. All prisms integrated into single unit with face of first prism represents a right dihedron that makes outlet pupil, while reflecting faces of, at least, two other prisms, makes outlet pupils. Note here that all prisms are interconnected via, at least, one rhombic prism with one reflecting and one semi-translucent face so that right trihedral angle is formed in their connection between faces of inlet pupil and each of outlet pupils. Beam directed into prismatic single unit inlet pupil from radiation source changes its direction by 180°.

EFFECT: inbuilt control compact device.

2 dwg