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.
JP2007099791A | 2007-04-19 | |||
JP2007111159A | 2007-05-10 | |||
JP2004020343A | 2004-01-22 | |||
JP2007286011A | 2007-11-01 | |||
JP2005241406A | 2005-09-08 | |||
JP2007093289A | 2007-04-12 |
Takahiro Arita
Next Patent: METHOD AND DEVICE FOR DISCRIMINATING POSITION INFORMATION OF MOBILE TERMINAL