OPTICAL SIGHT OF GUIDED MISSILE GUIDANCE SYSTEM Russian patent published in 1999 - IPC

FIELD: optical guidance systems of self-propelled projectiles, applicable in guided weapon systems with teleorientation in laser beam. SUBSTANCE: guidance system optical sight has a sighting channel and a guidance channel including a laser source, modulator and optics with a variable focal length, and the guidance channel between the modulator and optic with a variable focal length has a plane-parallel plate for turning about the axis perpendicular to the optical axis of the guidance channel. Besides, use is made of a plate turning mechanism mechanically linked with the plate axle of rotation, mechanism control circuit, time interval former and a device for input the target range; the turning mechanism has a motor, reduction gear transmitting the rotation of the motor shaft to the plate axle of rotation, plate neutral position pickup corresponding to the perpendicular position of the plate relative to the optical axis of the guidance channel, a the plate maximum turning pickup; the outputs of the two pickups are connected respectively to the first and second input of the control circuit, whose output is connected to the motor, and the third input of the control circuit is connected to the output of the time interval former, whose first input is connected to the output of the device for input of the target range, and the second input - to the guided missile launching system. EFFECT: enhanced noise immunity of guidance systems. 4 cl, 2 dwg