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:
Dec. 07, 1999
Filed:
Nov. 07, 1996
Tetsuji Suzuki, Yokosuka, JP;
Shintaro Nakagaki, Miura, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
An improved color filter and a color image display apparatus employs the filter, the color filter has a hologram device for spectrally diffracting an incident light into plural light beams of different wavelength regions and selectively converging the plural light beams on respective plural picture element electrodes corresponding to the different wavelength regions. The hologram device has such characteristics that S-polarized components of the incident light are diffracted at a maximum diffraction efficiency at a predetermined incident angle of the incident light, and P-polarized components of the incident light are diffracted as such that a difference between the maximum diffraction efficiency of the S-polarized components and the diffraction efficiency of the P-polarized components is not less than 30%, and the diffracted S-polarized components are formed as the plural light beams to be converged on the plural picture element electrodes corresponding to the different wavelength regions.