Abstract: A method determining artillery fire corrections toward a fixed target using a fixed observation system is oriented and equipped with a device measuring orientation of line of sight, a laser rangefinder, a positioning device, and a display screen with fixed crosshair, displaying and moving another crosshair. The method includes: orienting the observation system to display the central crosshair on the target image and calculating target geographical coordinates using distance provided by the rangefinder. If, after firing, the impact and target do not coincide, the method includes, if the orientation is fixed: displaying a second crosshair on the impact image and measuring offset between the two crosshairs, displaying a third crosshair symmetrical to the second crosshair; and orienting the optronic system to position the third crosshair on the target image, the first crosshair coinciding with the impact point image, and actuating the rangefinder to obtain distance between the system and impact.

Abstract: A method determining artillery fire corrections toward a fixed target using a fixed observation system is oriented and equipped with a device measuring orientation of line of sight, a laser rangefinder, positioning means, a display screen with a fixed crosshair, and means displaying and moving another crosshair on screen. The method includes: orienting the observation system to display the central crosshair on the target image and calculating target geographical coordinates using distance provided by the rangefinder. If, after firing, the impact and target do not coincide, the method includes: orientation being fixed: displaying a second crosshair on the impact image and measuring offset between the two crosshairs, displaying a third crosshair symmetrical to the second crosshair; orienting the optronic system to position the third crosshair on the target image, the first crosshair coinciding with the impact point image, and actuating the rangefinder to obtain distance between the system and impact.

Abstract: The invention relates to a method of telemetry of a target performed by an operator by means of binoculars which comprise an image sensor, a display screen, a processing unit and a laser telemeter exhibiting a firing window centered on the sighting axis of the laser.

Abstract: The invention relates to a method of telemetry of a target performed by an operator by means of binoculars which comprise an image sensor (1), a display screen (2), a processing unit and a laser telemeter (4) exhibiting a firing window centered on the sighting axis of the laser.

Abstract: An infrared telescope, an apparatus for the harmonizing of its input and output axes including an infrared camera enabling the observation of an infrared scene and delivering a video signal representing the infrared scene, the infrared camera having a sighting axis that constitutes the input axis; a display screen receiving the video signal and displaying the corresponding image in the visible frequency spectrum; a bispectral, visible and infrared collimator, collimating the image displayed on the display screen at infinity, the collimator having an optical axis that constitutes the output axis; an infrared source positioned in a predefined way with respect to the output axis and positioned so that its radiation is collimated at infinity by the collimator; an element the reflection of the radiation coming from the infrared source at output of the collimator towards the infrared camera, the element enabling the formation on the display screen of an image of the infrared source; a device to measure the shift be

Abstract: In order to scan a relatively small window (F) in the image zone (ZI) of a charge transfer device, a series of prior transfers (B.sub.1, B.sub.2, B.sub.3) are performed moving from the image zone to the memory zone (ZM) to move the leading edge of the window until it is adjacent to the output shift register (RD). The lines of the window may then be read conventionally (B.sub.4) omitting any reading of the lines that come before or after. This considerably reduces the delay (between steps B.sub.1 and B.sub.4) between image acquisition and signal processing, without altering the frame frequency which remains fixed at 50 Hz, for example.