1990-07-23
1991-07-23
Gellner, Michael L.
G03B 940
Patent
active
050347659
ABSTRACT:
A focal-plane shutter for use in a camera. The shutter has a driving lever which can be driven with a substantially uniform force. The shutter comprises a closing member for actuating closing blades, the driving lever that urges the closing member to perform an exposure operation, a tension spring connecting the driving lever with the closing member, a brake lever, and an anchoring lever. The brake lever has a retaining portion that retains the closing member in its exposure end position. The anchoring lever has an anchoring portion which, when the closing member is in its exposure end position, moves out of the operating range of the closing member.
REFERENCES:
patent: 4054891 (1977-10-01), Onda et al.
Nemoto Ichiro
Otora Takahito
Adams Bruce L.
Gellner Michael L.
Seikosha Co. Ltd.
Wilks Van C.
LandOfFree
Focal-plane shutter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Focal-plane shutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focal-plane shutter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-435569