Title:
偏光解消板並びに分光器及びポリクロメータ
Document Type and Number:
Japanese Patent JP4123860
Kind Code:
B2
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.
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Inventors:
Tomokazu Yamamoto
Kaneko Tsutomu
Toru Mori
Kaneko Tsutomu
Toru Mori
Application Number:
JP2002227713A
Publication Date:
July 23, 2008
Filing Date:
August 05, 2002
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
G01J3/18; G01J3/02; G02B5/30; G01J3/36; G02B27/28; G01J3/12
Domestic Patent References:
| JP9269411A | ||||
| JP20014447A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama