Polarization conversion module and polarization conversion method thereof
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United States of America Patent
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Issued Date -
Feb 24, 2005
app pub date -
Aug 19, 2003
filing date -
Aug 19, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A polarization conversion module uses a convex lens to receive and parallel the incident light passing therethrough. A polarization beam splitter is provided for receiving and polarizing the paralleled incident light transmitted from the convex lens. The polarization beam splitter splits the paralleled incident light into two parts, one of which penetrates through the polarization beam splitter, and the other part of which is reflected by the polarization beam splitter. A phase transformation device is provided for receiving the polarized light penetrating through the polarization beam splitter and transforming the phase of the polarized light passing therethrough, thereby generating phase-shifted polarized light. A mirror is provided for reflecting the reflected polarized light from the polarization beam splitter.
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