The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2005
Filed:
Feb. 27, 2003
Atsuhiro Okawa, Minami-ashigara, JP;
Michio Nagai, Minami-ashigara, JP;
Masaki Noro, Minami-ashigara, JP;
Atsuhiro Okawa, Minami-ashigara, JP;
Michio Nagai, Minami-ashigara, JP;
Masaki Noro, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;
Abstract
A novel polarization selective membrane is disclosed. The membrane comprises a liquid crystal molecule having a helical structure and selectively transmits specific polarized light and selectively reflects the other polarized light. The helical axis of the helical structure is practically oriented in the normal direction of the membrane plane, and the angle between the helical axis of the helical structure and the long axis of the liquid crystal molecules is from 5° to 85°. The membrane may be prepared by using a composition comprising a compound represented by Formula (I): wherein X represents a group having an optically active site, M represents a group having at least one aromatic carbocycle or aromatic heterocycle, Yand Yindependently represent a bivalent group; Rto Rindependently represent a hydrogen atom or an alkyl group, R represents an alkyl group