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:
Jan. 10, 2012
Filed:
Feb. 18, 2010
Yoshiji Kawamura, Sano, JP;
Yoshiji Kawamura, Sano, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A polarizing split layer and a reflection layer are alternately provided on bonding surfaces between prism rods which constitute a polarized beam splitter array. Polarization conversion devices are bonded to emission surfaces of the prism rods from which linearly polarized light being reflected by the polarizing split layers and being reflected by the reflection layer are emitted. In the polarization conversion device, each edge line of a rectangular prism element is inclined by 45° with respect to a polarization direction of linearly polarized light being incident. On each inclined surface of the rectangular prism element, a retardation film whose optical axis matches the normal line of the inclined surface is formed. The retardation film serves as a uniaxial negative C plate which gives a phase difference of a ½ wavelength to incident light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile