Light measuring device for camera
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United States of America Patent
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Oct 16, 1984
Grant Date -
N/A
app pub date -
Jul 30, 1982
filing date -
Aug 8, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light measuring device for cameras with a photosensitive element positioned to receive light reflected from a film surface or shutter surface. A collection lens and a diffusion plate having a plurality of stages of different diffusing characteristics are placed between the reflecting surface and the photosensitive element. The light measuring regions can be changed over as the stages of the diffusion plate are selectively put in the path of the light traveling to the photosensitive element.
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