| 摘要 |
PROBLEM TO BE SOLVED: To provide a passive depolarizer for use in an optical system having an image plane. SOLUTION: The passive depolarizer includes a patterned half wave plate incorporating a monolithic layer of birefringent material. The monolithic layer includes a plurality of regions having fast axes with at least four different orientations. Accordingly, a polarized beam of light made incident on the patterned half wave plate is substantially depolarized at the image plane. COPYRIGHT: (C)2008,JPO&INPIT
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