Method and apparatus for a fog screen and image-forming method using the same
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United States of America Patent
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Dec 14, 1993
Issued Date -
N/A
app pub date -
Dec 4, 1992
filing date -
Mar 15, 1991
priority date (Note) -
Expired
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Abstract
A method and apparatus for forming a fog screen for use in the projection for display of an optical image which comprises disposing a pair of substantially parallel air curtains and blowing a fog into the space defined by and between the air curtains. The fog screen is high and uniform in density and can be utilized for forming a well-defined image thereon that is free from distortions or interruptions.
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