Device for locking a blade driver in an electronic shutter

Details Device for locking a blade driver in an electronic shutter Device for locking a blade driver in an electronic shutter

1981-12-02

1983-10-11

Mathews, Alan

354246, 354268, G03B 908

Patent

active

044088566

ABSTRACT:
A shutter blade is actuatable by a driver which can be locked in a shutter setting position by a locking lever assembly comprising a first lever having a bent end engageable with the driver and a second lever having an iron member attractable by an electromagnet which, when energized, causes the first and second levers to be angularly moved in unison in a direction to release the driver for actuating the shutter blade. The second lever is lockable against movement to actuate the driver by a reciprocable follower movable in response to operation of a quick return mirror mechanism. When a shutter button is depressed to move the mirror upwardly for starting an exposure operation, the second lever is disengaged from the follower, and attracted by the electromagnet as energized to release the driver. When the exposure operation is finished, the mirror is lowered to enable the follower to lock the second lever against movement. The first lever is then in a position capable of locking the driver in the shutter setting position.

REFERENCES:
patent: 4306793 (1981-12-01), Date et al.

Affiliated with

Also associated with

Rating

Device for locking a blade driver in an electronic 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 Device for locking a blade driver in an electronic shutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for locking a blade driver in an electronic shutter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1272072