Research/Patents/US 4905936
US 4905936

AIRBORNE OPTICAL SIGHTING DEVICE MOVING AT HIGH SPEED

Assignee

THOMSON-CSF; OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES (ONERA)

Filed

Nov 30, 1984

Granted

Mar 6, 1990

Location

PARIS FR

Abstract

The optical sighting device makes it possible to increase the quality of ical transmission by preventing turbulences from forming in the field of vision at high speed, by means of an airstream-deflecting device which is mounted in the turbulence formation zone and which has a profile in the form of a stem-post to dispel the air-streams laterally. In the case of transparent plane wall via which vision takes place in this zone, the deflecting device can consist of an attached plates which is connected to or located in the vicinity of the wall.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 11, 1986

Rescinded

May 19, 1989

Duration

3 years, 2 months

Inventor

  • 1FRANCOIS DUFRESNE DE VIREL

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records