Speckle reduction in laser illuminated projection displays having a one-dimensional spatial light modulator
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United States of America Patent
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Aug 19, 2008
Grant Date -
Mar 29, 2007
app pub date -
Sep 29, 2005
filing date -
Sep 29, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A projection display including a one-dimensional light modulator includes an optical arrangement for projecting light from a laser onto the modulator in the form of a line of light. Light from the laser is divided to create in effect a two-dimensional array of mutually incoherent light sources. Light from one axis of the array is projected onto the modulator to form the length of the line of light and light from the other axis of the array is projected onto the modulator to form the width of the line of light. Division of the light is accomplished without the use of any moving component.
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