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:
May. 08, 2012
Filed:
Oct. 31, 2007
Shunsuke Chatani, Otake, JP;
Toshiaki Hattori, Otake, JP;
Shunsuke Chatani, Otake, JP;
Toshiaki Hattori, Otake, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
A molded product having a phase separation structure formed by photopolymerization of a photopomerizable composition and imparting a sharp diffraction spot at a high diffraction efficiency, and a method for manufacturing same are provided. The molded product () comprises a matrix () and a multiple columnar structures () disposed within the matrix () and having an index of refraction different from the matrix (), wherein the half width of a diffraction spot is 0.6° or less and diffraction efficiency is 10% or greater in an angular spectrum obtained by irradiation with a laser beam having an intensity distribution of standard normal distribution and a half width of the intensity distribution of 0.5°. The multiple columnar structures () are oriented in approximately the same direction, and are aligned in a regular lattice on a plane perpendicular to said orientation direction.