1979-08-16
1981-05-05
Levy, Stewart J.
350 9616, 350 9618, G02B 514
Patent
active
042655137
ABSTRACT:
A multichannel light switch including a cylindrical-shaped light-focusing transmission body having a length equal to an odd multiple of one quarter of the pitch of light beam undulation within the body and having a total reflection coating applied to one end face thereof, which is normal to the axis of the transmission body. A stationary optical fiber bundle is arranged opposite to the other end face of the transmission body and is in parallel to the axis thereof. For light-path switching between the optical fibers, the transmission body is adapted to be displaced in a radial direction or to be rotated in a plane normal to the axis thereof.
REFERENCES:
patent: 4111524 (1978-09-01), Tomlinson
patent: 4208094 (1980-06-01), Tomlinson et al.
K. Kobayashi et al., "Micro-Optics Devices for Branching, Coupling, Multiplexing & Demultiplexing", International Conf. on Integrated Optics . . . , Jul. 1977, Tokyo, Japan.
K. Suzuki et al., "Optical Fiber Line Switch", Proceedings National Convention of IE & CE of Japan, vol. 4, pp. 4-113, Mar. 1978.
Mito et al., "Motor-driven Rotary Mirror Type Multichannel Line Switch" in Proceedings National Conv. of E & C.E. of Japan, vol. 4, pp. 4-117, Mar. 1978.
Tomlinson et al., "Multiposition Optical Fibre Switch" in Electronics Letts., vol. 15, No. 6., Mar. 1979.
M. Nunoshita et al., "Optical Switch for Multimode Optical-Fiber Systems" in Optics Letts., vol. 4, No. 1, Jan. 1979.
A. Ishikawa et al., "Beam Splitting & Coupling Circuits Using a Selfoc Lens" at Meeting Institute of Japan Electronic Comm. Eng., Mar. 1977.
Ishikawa Ro
Kaede Kazuhisa
Matsushita Shigeo
Mito Ikuo
Sugimoto Shigetoki
Levy Stewart J.
Nippon Electric Co. Ltd.
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