Optical equipment having a lens position detector

Details Optical equipment having a lens position detector Optical equipment having a lens position detector

1991-12-02

1994-03-01

Arnold, Bruce Y.

Optical: systems and elements

Lens

With variable magnification

359694, 359823, G02B 1514, G02B 702

Patent

active

052913350

ABSTRACT:
An optical equipment is equipped with a compact and high precision lens position detector which has a lens holder guide member which is made of a conductor and is provided with a detection electrode for detecting the position of the lens holder by a change in an electrical capacitance.

REFERENCES:
patent: 4534624 (1985-08-01), Toda et al.
patent: 4785210 (1988-11-01), Maruyama et al.

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