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:
Oct. 11, 2011
Filed:
Feb. 18, 2010
Yoshiji Kawamura, Sano, JP;
Yoshiji Kawamura, Sano, JP;
Fujinon Corporation, Saitama, JP;
Abstract
Polarizing split layersand reflection layersare provided on bonding surfaces between prism rodsand. Polarization conversion devicesare bonded to an emission surface from which linearly polarized light being reflected by the polarizing split layersand reflected by the reflection layerare emitted. The polarization conversion devicesare formed by bonding plural prism rodswith side surfaces being inclined by 45° with respect to an incidence surface. Retardation films formed of dielectric multilayers are provided between the bonding surfaces to give a phase difference of a ½wavelength to transmitted light. The retardation films and bonding borderlinesare inclined by 45° within a plane perpendicular to an optical axis of linearly polarized light so that an optical axis of the retardation film has an angle of 45° with respect to a polarization direction of the linearly polarized light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile