Focal-plane shutter base
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United States of America Patent
Stats
-
Mar 21, 1989
Grant Date -
N/A
app pub date -
Sep 10, 1987
filing date -
Sep 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A focal-plane shutter base for use in a camera includes a base plate having a shutter opening. Two sets of blades, each of which consists of a plurality of sheets for blocking light, are mounted on the base plate at one side of the shutter opening. The blades are covered by a cover plate connected to the base plate. Driving members for driving the blades are supported on shafts connected to the base plate. The base plate has a shield portion extending along the outer periphery thereof for preventing unwanted light from entering from the sides of the base plate, and a frame portion surrounding the shutter opening for blocking unwanted light from reaching the shutter opening and for structurally reinforcing the base plate. The base plate, shafts, shield portion and frame portion are all integrally molded from plastic.
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Cited Art Landscape
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