Optical blade drive apparatus

Details Optical blade drive apparatus Optical blade drive apparatus

1976-05-26

1978-03-14

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 13, G03B 908

Patent

active

040794008

ABSTRACT:
An optical blade drive apparatus for use in an optical instrument includes a linear motor system which electromagnetically actuates a blade ring for rotation at a high speed. The linear motor system comprises permanent magnets arranged to provide a centered magnetic force and an electromagnetic coil assembly formed by overlapping a number of printed wiring strip sheets in slightly offset positions.

REFERENCES:
patent: 3136934 (1964-06-01), Henry-Baudot
patent: 3654845 (1972-04-01), Fahlenberg et al.
patent: 3987473 (1976-10-01), Kondo

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