Title:
【発明の名称】光弾性変調器を用いる波長板リターデーションの測定方法及び装置
Document Type and Number:
Japanese Patent JP2001511514
Kind Code:
A
Abstract:
A practical system and method for measuring waveplate retardation. The system employs a photoelastic modulator in an optical setup and provides high sensitivity. The analysis is particularly appropriate for quality-control testing of waveplates. The system is also adaptable for slightly varying the retardation provided by a waveplate (or any other retarder device) in a given optical setup. To this end, the waveplate position may be precisely altered to introduce correspondingly precise adjustments of the retardation values that the waveplate provides. The system is further refined to permit one to compensate for errors in the retardation measurements just mentioned. Such errors may be attributable to static birefringence present in the optical element of the photoelastic modulator that is incorporated in the system.
More Like This:
Inventors:
Oakburg, Theodore Sea
Application Number:
JP2000504428A
Publication Date:
August 14, 2001
Filing Date:
July 24, 1998
Export Citation:
Assignee:
Hines Instruments, Inc.
International Classes:
G01J4/00; G01J4/04; G01M11/00; G01N21/23; G01B11/06; (IPC1-7): G01M11/00; G01B11/06; G01J4/04; G01N21/23
Attorney, Agent or Firm:
Matsunaga Nobuyuki