Richard T Luke

US Patent:

47535067, Jun 28, 1988

Filed:

Sep 2, 1986

Appl. No.:

6/902824

Inventors:

Arthur J. Einhorn - Los Angeles CA
Richard T. Luke - Rolling Hills Estates CA
Emanuel Marom - Canoga Park CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G02B 626
H01J 516
G02F 100

US Classification:

350 9615

Abstract:

An improved optical rotary joint is achieved by transmitting information in the form of an optical signal from a part of the de-spun portion outside the rotational axis to create on the spun portion, or vice versa, 360. degree. about the rotational axis, a continuous communication path having a configuration described by a series of overlapping elliptical areas. The detection area on the spun portion is less than that of the detection path thereby providing continuous optical communication with the transmitted optical signal.