Cutting method for fabricating a color wheel
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United States of America Patent
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Issued Date -
Mar 8, 2007
app pub date -
Sep 6, 2006
filing date -
Sep 6, 2005
priority date (Note) -
Abandoned
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Abstract
A cutting method for fabricating a color wheel. The first step includes cutting a set of fan-shaped filter segments from different colored filter sheets, wherein the sum of the included angles of the set of fan-shaped filter segments is either greater or less than 360.degree.. The second step includes bonding the set of fan-shaped filter segments onto a metal ring. The third step includes cutting the outer edge of the set of fan-shaped filter segments along a circular path coaxial to the metal ring. In this way, while bonding the fan-shaped filter segments onto the metal ring, the effect of burrs, irregular cracks or irregular edges resulting from the cutting process can be minimized. Moreover, the outer edge of the color wheel will be coaxial to the axis of the metal ring.
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