Thomson-Csf

Daniel Thomasson

Herve Girault

Francois H Gauthier

A sight such as a gunsight for a helicopter comprises a movable assembly including a reticle generator and a single optical component which is both semireflecting and capable of collimating the image of the reticle. The movable assembly is driven by drive means under servo control to superpose the image of the reticle at an aiming point on a landscape. The aiming point may be computed to make corrections for the behaviour of a ballistic weapon. The single optical component may comprise a hologram physically in the shape of a portion of a surface of a sphere, but acting optically like a portion of the surface of a paraboloid. The optical component may be fixed to the reticle generator by mechanical fixing means which mask the field of view around the optical component very little.

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Ambares, France

Daniel Thomasson