Focal plane shutter

Details Focal plane shutter Focal plane shutter

1980-01-23

1981-08-04

Griffin, Donald A.

G03B 934

Patent

active

042819148

ABSTRACT:
Rollers having attached thereto ribbons of a shutter screen of a focal plane shutter are arranged to have either another roller or a shutter screen take-up shaft fitted therein with a frictional force provided between them. The rollers are provided with an engaging part for engagement with an external member. The degree of parallelism between the slit forming ends of the front and rear screens of the shutter forming a slit for exposure is adjustable by operating the external member to rotate the rollers with a force greater than the frictional force.

REFERENCES:
patent: 3739704 (1973-06-01), Akiyama
patent: 4034390 (1977-07-01), Urano et al.
patent: 4084170 (1978-04-01), Hashimoto et al.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-237202