Optical system for the projection of patterned light onto the surfaces of three dimensional objects
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United States of America Patent
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Oct 24, 1995
Grant Date -
N/A
app pub date -
Aug 23, 1993
filing date -
Aug 23, 1993
priority date (Note) -
Expired
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Abstract
An image projection system for all surfaces of a three dimensional object such as a polyhedron in which direct and angle reflected image patterns are projected from superpositioned non-overlapping mask patterns mounted on different levels where the separation of the levels is related to the size of the object. The apparatus and process permits simultaneous photolithigraphic printing of conductors on the top and all sides of a cube shaped stack of integrated circuit chips.
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