Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type
Patent
1981-08-24
1983-11-15
Lee, John D.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Retarded or delayed type
335136, G02B 726
Patent
active
044152299
ABSTRACT:
Optical fiber switch apparatus for selectively coupling the end (16) of a first fiber (17) to the ends of a plurality of second fibers (10) circularly arranged within a housing (12) also enclosing the free end (16) of the first fiber (17). The latter (17) extends through a spherical bearing (20) seatable in a socket (24) formed in the housing end (23), the bearing having a disc (19) fitted about it at right angles to the axis of the first fiber (17). The pole-pieces of a plurality of electromagnets (26) arranged under the periphery of the disc (19) selectively tilt the disc (19) upon selective energization to swing the free end (16) of the first fiber (17) into juxtaposition with the end of a selected second fiber (10'). A hold electromagnet (36) is energized to urge the bearing (20) into its socket (24) and thereby the ends of the two fibers (17, 10') into abutment.
REFERENCES:
patent: 4152043 (1979-05-01), Albanese
patent: 4189206 (1980-02-01), Terai et al.
patent: 4193662 (1980-03-01), Hara
patent: 4204744 (1980-05-01), Wittmann
patent: 4223978 (1980-09-01), Kummer et al.
patent: 4318587 (1982-03-01), Grassl
P. G. Hale and R. Kompfner, "Mechanical Optical-Fibre Switch", Electronics Letters, vol. 12, No. 15, Jul. 22, 1976, p. 388.
Bell Telephone Laboratories Incorporated
Kamstra W. H.
Lee John D.
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