Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1993-10-18
1996-07-02
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359152, 359172, H04B 1010, H04B 1024
Patent
active
055328580
ABSTRACT:
An optical radio communication system comprising a first light transmitting system and a second light transmitting system. Each of said first and second light transmitting system comprising a transmitting means and a receiving means. Said transmitting means comprising a light emitting element positioned in a region including and surrounding a focal point of a first parabolic reflector for emitting light beams, said first parabolic reflector having an inner reflective surface for reflecting said light beams emitted from said light emitting element, and a means for driving said light emitting element with a signal to be transmitted. Said receiving means comprising a second parabolic reflector having an inner reflective surface for reflecting incident light beams, a light receiving element positioned in a region including and surrounding a focal point of said second parabolic reflector for receiving light beams reflected by said second parabolic reflector to output signals, and means for taking out information from said signals outputted from said light receiving element. In this optical radio communication system, broadband signals such as Manchester coded signals are directly transmitted on optical radio.
REFERENCES:
patent: 2494645 (1950-01-01), Collins
patent: 4684248 (1987-08-01), Cinzori
patent: 5142400 (1992-08-01), Solinsky
Dye, "New Infrared Reciprocal Tracking Laser Communicator", Conference Electro Optics/Laser International 80 UK, Brigton England, 25-27 Mar. 1980 pp. 297-307.
Hirohashi Kazutoshi
Kikuta Michio
Nagashima Motoyasu
Sakane Manabu
Satou Masamichi
Nit Data Communications Victor Company of Japan
Pascal Leslie
Systems Corporation
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