Illuminating apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 2, 1996
Grant Date -
N/A
app pub date -
Oct 31, 1994
filing date -
Oct 29, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compact illuminating apparatus for viewing films by transmitted light and having uniform light distribution across a diffusing plate, comprising a shallow elongated box-like main body having a base with a bottom having alternately arranged mountains and valleys walls or side parts of the box adapted to hold said diffusing plate; a frame arranged to close the box like base; a reflecting member having reflectance higher than that of said base and arranged on said bottom of said base; and an illuminating member comprising (1) light sources disposed below said diffusing plate, and (2) light-source-control member connected electrically with said light sources for controlling the operation thereof.
First Claim
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International Classification(s)
Cited Art Landscape
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