Invention Grant
- Patent Title: Depolarizer and spectroscope and polychromater
- Patent Title (中): 去极化器和分光镜和多色染料
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Application No.: US10629359Application Date: 2003-07-29
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Publication No.: US07075644B2Publication Date: 2006-07-11
- Inventor: Toshikazu Yamamoto , Tsutomu Kaneko , Toru Mori
- Applicant: Toshikazu Yamamoto , Tsutomu Kaneko , Toru Mori
- Applicant Address: JP Tokyo
- Assignee: Yokogawa Electric Corporation
- Current Assignee: Yokogawa Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPP.2002-227713 20020805
- Main IPC: G01F3/28
- IPC: G01F3/28
Abstract:
A depolarizer includes a second birefringent plate having a thickness which continuously changes in a direction of an optical axis of the second birefringent plate; and a third birefringent plate having a thickness which continuously changes in a direction of 45 degree with respect to an optical axis of the third birefringent plate; wherein the second birefringent plate is stuck on the third birefringent plate so that a reduction direction of the thickness of the second birefringent plate and a reduction direction of the thickness of the third birefringent plate are opposite to each other.
Public/Granted literature
- US20040021942A1 Depolarizer and spectroscope and polychromater Public/Granted day:2004-02-05
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