Focal plane shutter unit having three plates

Details Focal plane shutter unit having three plates Focal plane shutter unit having three plates

1997-01-23

2000-03-14

Blankenship, Howard B.

Photography

Camera detail

Shutter

396357, G03B 940

Patent

active

060363789

ABSTRACT:
A focal plane shutter unit includes two pairs of blade units consisting of a plurality of light shielding thin plates, a first plate having a first aperture, a second plate having a second aperture, disposed in a face-to-face relationship with the first plate, and having a part of a film passage path in a surface opposite to the surface on which the first plate is disposed, and a blade housing unit for housing the two pairs of blade units disposed in between the first plate and the second plate.

REFERENCES:
patent: 5266993 (1993-11-01), Uematsu
patent: 5623711 (1997-04-01), Misawa

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