Accession Number : ADD016430

Title :   Multi-Line Passive Fiber Optic Slipring.

Descriptive Note : Patent, Filed 30 Sep 93, patented 7 Jun 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Abney, Darrell T

Report Date : 07 Jun 1994

Pagination or Media Count : 8

Abstract : A multi-line, passive fiber optic slipring is provided. A plurality of transmitting optical fibers are terminated in a plurality of focusing lenses. The fibers and focusing lens are free to rotate about an axis rotation. A plurality of ellipsoidal mirrors are stacked on top of one another beneath the focusing lenses such that the axis of rotation passes through a first focal point of each of the plurality of ellipsoidal mirrors. Each of the focusing lenses focuses optical signals through the first focal point of a corresponding one of the ellipsoidal mirrors. The optical signals reflect from each corresponding mirror to a second focal point of the corresponding mirror. Each mirror is further provided with an optical aperture along the axis of rotation to allow the optical signals not focused on the first focal point of the corresponding mirror to pass therethrough. Each of a plurality of receiving optical fibers is fixed at a corresponding one of the second focal points.

Descriptors :   *FOCUSING, *LENSES, *PATENTS, *SLIP RINGS, *FIBER OPTICS TRANSMISSION LINES, APERTURES, MIRRORS, OPTICS, ROTATION, SIGNALS, TRANSMITTING, PASSIVE SYSTEMS, AXES, ELLIPSOIDS, GEOMETRIC FORMS, RINGS

Subject Categories : Fiber Optics and Integrated Optics
      Electrical and Electronic Equipment
      Theoretical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE