OPTICAL INTERFERENCE MIXER FOR LASER GYRO Russian patent published in 2017 - IPC G01J9/02 G01C19/64 

FIELD: measuring equipment.

SUBSTANCE: optical interference mixer consists of a semitransparent plane mirror, wherein the first surface with a semitransparent reflective coating or film formed by the hemispherical recess surface of radius R1. Second surface is made translucent plane mirror focusing lens radius R2. Wherein R2>R1. Wherein the longitudinal axis of the focusing lens coincides with the longitudinal axis of the hemispherical surface and the axis of the gyroscope photodetector. Thickness of the semitransparent plane mirror is much greater than the recess.

EFFECT: technical result of the invention is to improve the reliability, accuracy and stability of measurement of the angular velocity of the laser gyro with a triangular optical circuit monoblock expulsion and technological focus points of the interference of the mixer, the focusing lens and the photodetector.

1 cl, 4 dwg