Method and apparatus for making a high resolution light pattern generator on a transparent substrate
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United States of America Patent
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Nov 13, 2012
Grant Date -
Dec 31, 2009
app pub date -
Jun 30, 2009
filing date -
Jun 30, 2008
priority date (Note) -
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Abstract
A light pattern generator that can be used to form a gobo for use in a projection optical system. A transparent plate is coated with a stack that is absorptive and reflective. The stack is formed to be ablatable in the form of a pattern. The stack can have multiple different layers with multiple different characteristics, all of which are ablated by the laser.
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