Misfocus prevention means for cameras having unidirectional auto

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

1977-12-30

1979-04-17

Adams, Russell E.

Optics: motion pictures

Removable film strip magazine type

354 25, 352140, G03B 300

Patent

active

041497929

ABSTRACT:
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.

REFERENCES:
patent: 3435744 (1969-04-01), Stimson
patent: 3442193 (1969-05-01), Pagel
patent: 3443502 (1969-05-01), Harvey
patent: 3522764 (1970-08-01), Biber
patent: 3618499 (1971-11-01), Harvey
patent: 3713371 (1973-01-01), Kurihara et al.
patent: 4040065 (1977-08-01), Booth
patent: 4080531 (1978-03-01), Stauffer

Affiliated with

Also associated with

Rating

Misfocus prevention means for cameras having unidirectional auto does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Misfocus prevention means for cameras having unidirectional auto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Misfocus prevention means for cameras having unidirectional auto will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1259635