Optical low-pass filter
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United States of America Patent
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-
N/A
Issued Date -
Sep 28, 2006
app pub date -
Mar 27, 2006
filing date -
Mar 28, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An optical low-pass filter includes: two birefringent plates; a phase plate made of a polymer film and bonded between the two birefringent plates through an adhesive layer or a tacky layer; and a sealing portion provided over an entire periphery of an external periphery surface of the optical low-pass filter.
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