Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type
Patent
1988-10-12
1990-01-16
Sikes, William L.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Retarded or delayed type
350 9616, 350 9618, 350 9621, 335128, G02B 636, H01H 6702
Patent
active
048938912
ABSTRACT:
In an optical switching device, an optical medium such as a prism and a glass plate is rotatively held on a supporting member by a pivot bearing and a pivot shaft, and the optical medium is rotated, for instance, by a magnetic force so that optical paths are mechanically changed-over. For this construction, the area of the frictional contact surfaces between the pivot bearing and the pivot shaft is decreased thereby providing a stable dynamic characteristic which is maintained for a long time.
REFERENCES:
patent: 4304460 (1981-12-01), Tanaka et al.
patent: 4322126 (1982-03-01), Minowa et al.
patent: 4415228 (1983-11-01), Stanley
patent: 4415229 (1983-11-01), McCullough
patent: 4437728 (1984-03-01), Ohashi
patent: 4466302 (1984-08-01), Harris
patent: 4759597 (1988-07-01), Lemonde
Nunoshita et al., "Optical Switch for Multimode . . . " Optics Lett. vol. 4, No. 1, Jan. 1979, pp. 27-28.
Fujita Masayuki
Oyama Sakashi
Healy Brian M.
NEC Corporation
Sikes William L.
LandOfFree
Optical switching device including pivot bearing mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical switching device including pivot bearing mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical switching device including pivot bearing mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1330934