Retro-reflective optical transceiver

Details Retro-reflective optical transceiver Retro-reflective optical transceiver

1991-02-04

1992-06-09

Coles, Sr., Edward L.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359170, 359302, 359364, H04B 1000

Patent

active

051212420

ABSTRACT:
A retro-reflective transceiver provides optical communications by reflecting light transmitted by a distant source. The transceiver has a corner cube reflector with a truncated apex that serves as a transmissive aperture. A portion of the incoming light passes through the aperture in the corner cube reflector to a receiver where information encoded on the incoming light beam can be detected. The remainder of the light beam is reflected back toward the source in a direction substantially parallel to the incoming light beam by the three mutually perpendicular, reflective faces of the corner cube reflector. An optical switch (e.g. ferro-electric light crystal material) located in front of the corner cube reflector is used to modulate the intensity of the reflected beam to transmit information to the source.

REFERENCES:
patent: 4063083 (1977-12-01), Cathey et al.
patent: 4131791 (1978-12-01), Lego, Jr.
patent: 4143263 (1979-03-01), Eichweber
patent: 4662003 (1987-04-01), Eichweber
patent: 4717913 (1988-01-01), Elger
patent: 4721363 (1988-01-01), Inoue
patent: 4864222 (1989-09-01), Aoshima et al.
patent: 4887310 (1989-12-01), Meyzonnette et al.

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