3594556 is referenced by 54 patents and cites 8 patents.

This invention is directed to an electrically augmented sight particularly dapted for use in aerial reconnaissance. The sight locates and fixes the position of an object viewed from the air. A wide-angle optical viewer is used to locate and hold the object in sight. An electron image motion-stabilizing system in the sight provides a stable view of the object. When the stable view is obtained, computer operation is initiated to make two consecutive measurements of the bearing angle of the target relative to the flight path of the aircraft. After the aircraft has traveled a predetermined distance, usually 1,000 yards, the second measurement is made. The bearing angle at the point of the second measurement is recorded and the computer utilizing the sine law calculates the range of the target at the recorded bearing.

Title
Optical sight with electronic image stabilization
Application Number
04/789,729
Publication Number
3594556
Application Date
January 8, 1969
Publication Date
July 20, 1971
Inventor
Edwards William R
Assignee
The United States of America represented by the Secretary of the Navy
IPC
G06g 07/78
G02B 27/64
G01S 11/12
G01S 11/00
G06G 07/78
G06G 07/00
F41G 03/00
F41G 03/22
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