Improved mirror box construction to ensure accurate assembly the

Details Improved mirror box construction to ensure accurate assembly the Improved mirror box construction to ensure accurate assembly the

1994-02-03

1995-12-26

Gellner, Michael L.

G03B 1912

Patent

active

054792304

ABSTRACT:
A mirror box for a camera includes a mirror box section for rotatably holding a mirror, a lens mounting section for connection to a lens and a shutter plate section that defines an inlet opening for a shutter assembly, all three sections being defined as a one-piece unit. By this structure, the central axes of the lens mounting section, the shutter assembly and the mirror box coincide. This enables the operating position of the shutter assembly to be adjusted directly with respect to the light axis of the photographic lens.

REFERENCES:
patent: 4163612 (1979-08-01), Ueda et al.
patent: 4417796 (1983-11-01), Sugiura et al.
patent: 4814807 (1989-03-01), Nakagawa et al.
patent: 5150141 (1992-09-01), Uematsu
patent: 5264887 (1993-11-01), Fukahori
patent: 5266993 (1993-11-01), Uematsu

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