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Title:
EVALUATION METHOD AND EVALUATION DEVICE FOR OPTICAL ANISOTROPY
Document Type and Number:
Japanese Patent JP2012103222
Kind Code:
A
Abstract:

To evaluate optical anisotropy irrelevantly to a retardation value of a retardation plate and a DC component of transmitted light intensity.

Progressions {P,i}={cP+APti}, {A,i}={cA+AAti}, and {R,i}={cR+ARti} are calculated from a progression {ti}={t0, t1, ..., tN} (unit of ti; time). Light intensity Ii when angles of a polarizer, an analyzer, and the retardation plate are denoted as P,i, A,i, and R,i specified with (i) is acquired. An amplitude and a phase of at least one component among a component of frequency 2F(AA-AP+AR) and a component of frequency 2F(AA+AP-AR) are found from a plurality of I(ti)s. Two of amplitudes and phases of at least two components among a component of frequency 2F(AA-AP), a component of frequency 2F(AA+AP), a component of frequency 2F(AA+AP-2AR), and a component of frequency 2F(AA-AP+2AR) are found from the plurality of I(ti)s. The magnitude and direction of optical anisotropy of a sample 3 are evaluated based upon the amplitude and phases.


Inventors:
NISHIOKA TAKAHIRO
Application Number:
JP2010254432A
Publication Date:
May 31, 2012
Filing Date:
November 15, 2010
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01N21/23; G01J4/04
Domestic Patent References:
JP2007099791A2007-04-19
JP2007111159A2007-05-10
JP2004020343A2004-01-22
JP2007286011A2007-11-01
JP2005241406A2005-09-08
JP2007093289A2007-04-12
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita