Electromagnetic shutter mechanism

Details Electromagnetic shutter mechanism Electromagnetic shutter mechanism

1982-06-25

1985-02-05

Gonzales, John

G03B 914

Patent

active

044975570

ABSTRACT:
A compact shutter mechanism is disclosed for controlling the unblocking and blocking of a light admitting opening through which light passes along a given path. Included in the mechanism is a plurality of a first group of shutter blade assemblies, as well as means for mounting the assemblies so that each is movable between unblocking and blocking conditions and each is generally parallel to a given plane. Each of the blade assemblies includes at least a permanent magnet having its magnetic field extending generally transversely to the given plane. Means for driving the assemblies between their blocking and unblocking condition include at least a first coil arrangement having active conductor portions generally parallel to the given plane. Each of the active portions is juxtaposed to respective ones of the magnetic fields so that when energized with reverse polarity each of the blade assemblies is driven between the unblocking and blocking conditions.

REFERENCES:
patent: 3654845 (1972-04-01), Fahlenberg et al.
patent: 3781099 (1973-12-01), Williams et al.
patent: 3782255 (1974-01-01), Boerner
patent: 3882522 (1975-05-01), Erlichman
patent: 3942183 (1976-03-01), Whiteside
patent: 4024552 (1977-05-01), Kondo
patent: 4051499 (1977-09-01), Kondo
patent: 4079400 (1978-03-01), Kondo
patent: 4121235 (1978-10-01), Fujita et al.
patent: 4162831 (1979-07-01), Gold
patent: 4171897 (1979-10-01), Fujita et al.
patent: 4222652 (1980-09-01), Ishiguro
patent: 4240728 (1980-12-01), Wiedmann et al.
patent: 4265530 (1981-05-01), Petersen
patent: 4306788 (1981-12-01), Ogawa et al.
patent: 4313659 (1982-02-01), Saito et al.
patent: 4322145 (1982-03-01), Yamada et al.
patent: 4333722 (1982-06-01), Lee
patent: 4338009 (1982-07-01), Lee
patent: 4348092 (1982-09-01), Hirohata et al.
patent: 4348094 (1982-09-01), Hirohata et al.

Affiliated with

Also associated with

Rating

Electromagnetic shutter mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic shutter mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic shutter mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2080539