Frame counting method and device in camera

Details Frame counting method and device in camera Frame counting method and device in camera

1996-11-15

1999-08-03

Metjahic, Safet

Photography

Having camera indicator

Film condition indicator

G03B 166

Patent

active

059336625

ABSTRACT:
The time after film is rewound up to a first frame until a film cartridge holding the film is allowed to be taken out is divided with the time required for rewinding the film by the currently-exposed frames. A delayed frame number is displayed at the time which is delayed from a time when the actual frame corresponding to the delayed frame number has been rewound for a delay time which is found based upon a number of the currently-exposed frames. Thus, a time in which a displayed number "1" changes to such a mark as "E" can be decreased, thereby preventing the user from opening a film cartridge chamber before the film is completely rewound.

REFERENCES:
patent: 3206758 (1965-09-01), Inglis
patent: 4707095 (1987-11-01), Nakano et al.
patent: 5032858 (1991-07-01), Kobayashi et al.
patent: 5107290 (1992-04-01), Ohsawa
patent: 5500705 (1996-03-01), Stephenson, III
patent: 5517270 (1996-05-01), Balling
patent: 5655162 (1997-08-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Frame counting method and device in camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frame counting method and device in camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frame counting method and device in camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-858973