Photography – Camera detail – Body structure or housing
Patent
1997-07-28
1998-09-08
Lee, Eddie C.
Photography
Camera detail
Body structure or housing
396536, 396537, 396538, G03B 1702
Patent
active
058059482
ABSTRACT:
A film-chamber cover of an advanced photo system (APS) camera is for indicating whether a film cassette is loaded within a film chamber of the APS camera or not. The film-chamber cover includes: a bottom cover furnished with a viewing window, an upper cover furnished with a shaft hole, a moving shaft slidably connected with the shaft hole between the upper and bottom covers, and a swing plate formed with characteristic symbols thereon. The swing plate is pivoted to the bottom cover and is driven by a restoring member such that when the film chamber is not loaded with a film cassette, the swing plate can be restored to a position where a symbol indicating emptiness of the chamber aligns the window of the bottom cover. When a film cassette is loaded within the chamber, the film cassette presses an upper end of the moving shaft such that the moving shaft slides downwards and pushes the swing plate to swing to another position where a symbol indicating existence of the film cassette aligns the window of the bottom cover.
REFERENCES:
patent: 5565951 (1996-10-01), Tokui
patent: 5666575 (1997-09-01), Stephenson, III et al.
patent: 5697007 (1997-12-01), Nishimura
Lee Eddie C.
Quark Opto-Electronics Inc.
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