G - Physics
02
B
88/114
G02B 26/06 (2006.01) C08J 5/18 (2006.01) C08L 69/00 (2006.01) G02B 5/30 (2006.01) G02F 1/00 (2006.01) G02F 1/13363 (2006.01)
Patent
CA 1307151
S01-48991C/YT/88 ABSTRACT OF THE DISCLOSURE A phase retarder causing a retardation of 1/2.lambda. or .lambda. is disclosed, which is obtained by uniaxially stretching a polycarbonate film, whose retardation value ranges from about 200 nm to about 625 nm, preferably from about 200 nm to about 350 nm or from about 475 nm to about 625 nm and whose color difference .DELTA.E* is not more than 20 as measured under crossed nicols with the phase retarder being set in such a manner that the main optic axis thereof makes an angle of 45 degrees with the crossed nicols.
557858
Kikui Hitoshi
Kitamura Shuji
Nakamura Kimishige
Okada Toyokazu
Sakakura Kazuaki
Riches Mckenzie & Herbert Llp
Sumitomo Chemical Company Limited
LandOfFree
Phase retarder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase retarder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase retarder will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1175198