Misfocus prevention means for cameras having unidirectional...

Details Misfocus prevention means for cameras having unidirectional... Misfocus prevention means for cameras having unidirectional...

G - Physics

03

B

342/15, 95/62

G03B 13/18 (2006.01) G02B 7/40 (2006.01)

Patent

CA 1116001

ABSTRACT OF THE DISCLOSURE A variable focus lens capable of being moved within and outside of its normal focusing range by a manual and an automatic focus control system is provided with spring force biasing means to urge said lens into its normal focusing range to avoid the possibility of said lens being misfocused by said automatic focus control system.

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