Shutter device

Details Shutter device Shutter device

1991-11-27

1992-11-17

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Illumination systems or details

354236, 354250, 354261, G03B 2772

Patent

active

051647664

ABSTRACT:
A shutter for an objective lens particularly for a photoprinter or the like in which the objective lens must be frequently opened and shut. The shutter includes an arm swingably driven by an actuater and provided at a forward end with a pair of shutter blades. The objective lens is placed in a range over which the pair of shutter blades swing as the arm swings so that the objective lens may be received in a gap defined between this pair of shutter blades and the objective lens may be opened or shut as the arm swings.

REFERENCES:
patent: 526471 (1894-09-01), Waters
patent: 4474464 (1984-10-01), Kanai et al.

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