Remotely controlled electromagnetic optical focusing assembly

Details Remotely controlled electromagnetic optical focusing assembly Remotely controlled electromagnetic optical focusing assembly

1978-05-03

1980-03-25

Evans, F. L.

G02B 704

Patent

active

041948114

ABSTRACT:
A lens of an optical system in space is to be moved, and thereby be focused, resulting in the focusing of the system. The lens is mounted, in a diaphragm of resilient material, with a ring-like component made of magnetic material. An electromagnet is positioned on either side of the lens and of the ring-like component. Application of d.c. current, by remote control, through the electromagnets, causes the translational movement, and the necessary focusing, of the lens and, therefore, of the optical system.

REFERENCES:
patent: 1866581 (1932-07-01), Simjian
patent: 3062100 (1962-11-01), Ludewig et al.
patent: 3917394 (1975-11-01), Sturdevant
patent: 4021101 (1977-05-01), Camerik
patent: 4092529 (1978-05-01), Aihara et al.
patent: 4135206 (1979-01-01), Kleuters et al.

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