초록 ▼

The system makes it possible to accurately align the laser emission axis with that of the video image sensor by using a point light source and an associated focusing optical system. External reception is interrupted during the alignment phase. The system tracker measures the errors at X and Y of the

The system makes it possible to accurately align the laser emission axis with that of the video image sensor by using a point light source and an associated focusing optical system. External reception is interrupted during the alignment phase. The system tracker measures the errors at X and Y of the image of the source formed on the sensor. The latter is rotated to occupy a plurality of predetermined successive angular positions. An electronic control and calculating system supplies, on the basis of successive error data, sweep correction signals at X and Y making it possible to control the center of the image coinciding then with the invariable point of the image corresponding to the rotation axis.

대표청구항 ▼

A laser target designator system comprising: a laser illuminator; an electronically swept video image sensor; video tracking means with a tracker processing on the basis of the video signal the error signals at X and Y of the designated target; a system of optical components defining the respective

A laser target designator system comprising: a laser illuminator; an electronically swept video image sensor; video tracking means with a tracker processing on the basis of the video signal the error signals at X and Y of the designated target; a system of optical components defining the respective transmission and reception paths, certain of these optical components being developed for orienting the laser beam and for receiving, in the same direction, the radiation of the external scene included in the sighting field of the sensor; a sensor rotation device; and an alignment device for making the laser beam axis coincide with that of the sighting field leading to the centre of the swept image on the sensor, said device comprising a point light source, an optical system for focusing the radiation of the source on the sensor via a mirror interposed on the reception path and which interrupts the reception of the radiation of the scene towards the sensor during the alignment phase, and electronic means for processing the error signals at X and Y and producing sweep correction signals intended for the sensor for displacing the centre of the image, said electronic means comprising means for controlling the rotation device for producing a plurality of predetermined successive angular positions, means for storing successive error data on the image point of the source and means for calculating on the basis of the stored data errors of the invariable point of the image corresponding to the sensor rotation axis, said errors defining the sweep correction signals at X and Y to be applied to the sensor.