Optics: measuring and testing – By polarized light examination
Reexamination Certificate
2007-10-23
2007-10-23
Punnoose, Roy M. (Department: 2886)
Optics: measuring and testing
By polarized light examination
Reexamination Certificate
active
10733359
ABSTRACT:
Disclosed is a birefringence measuring apparatus and method for measuring birefringence of a sample in a reduced time and in a simple manner. The birefringence measuring apparatus includes a light projecting unit for projecting approximately circularly polarized light upon a sample, a Stokes meter for detecting a state of polarization of light from the sample, and a calculating system for calculating birefringence of the sample on the basis of a Stokes parameter from the Stokes meter.
REFERENCES:
patent: 4681450 (1987-07-01), Azzam
patent: 5298972 (1994-03-01), Heffner
patent: 5517589 (1996-05-01), Takeuchi
patent: 5784202 (1998-07-01), Noguchi
patent: 6266141 (2001-07-01), Morita
patent: 2003/0234348 (2003-12-01), Takeuchi et al.
patent: 0 536 538 (1993-04-01), None
patent: 0 597 390 (1994-05-01), None
patent: 2 839 551 (2003-11-01), None
patent: 05-209791 (1993-08-01), None
patent: 08-201175 (1996-08-01), None
patent: WO 02/12947 (2002-02-01), None
Umeda, et al., “Measurement of the Residual Birefringence Distribution in Glass Laser Disk by Transverse Zeeman Laser”, Electronics and Communication in Japan, Part 2, vol. 74, No. 5, pp. 21-28 (1991).
Wang, et al., “A New Instrument for Measuring Both the Magnitude and Angle of Low Level Linear Birefringence,” Review of Scientific Instruments, vol. 70, No. 10, pp. 3847-3854 (1999).
Nikolova, et al., “Photoinduced Anisotropy: New Photopolarimetric Setup for Real-Time Measurements,” Applied Optics, vol. 31, No. 31, pp. 6698-6701, (1992).
Kishikawa Yasuhiro
Takeuchi Seiji
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