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:
Aug. 10, 2010
Filed:
Jan. 24, 2008
Kenichi Nakagawa, Kanagawa, JP;
Kenichi Nakagawa, Kanagawa, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
Red incident light is reflected on a mirror () and linearly polarized by a polarizer (R). Linearly polarized incident light enters a transmissive liquid crystal device (R), in which oblique incident light is changed into elliptically polarized light. A retardation compensator (R) between the liquid crystal device (R) and an analyzer (R) has an inorganic form birefringence layer. The retardation compensator (R) yields birefringence effect to change elliptical polarized light into linearly polarized light. Linearly polarized light from the retardation compensator (R) can pass the analyzer (R) without decreasing intensity, and enters a color recombining prism (). The liquid crystal device (R) may have the inorganic form birefringence layer. Retardation in green and blue light is also compensated in the same manner. Red, green and blue image light, mixed in the color recombining prism (), is projected onto a screenby a projection lens system ().