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:
Apr. 22, 2008
Filed:
Feb. 02, 2005
Hidefumi Sakata, Tatsuno-cho, JP;
Susumu Aruga, Simosuwa-cho, JP;
Takashi Takeda, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An illuminating apparatus includes at least two solid light-emitting elements including a first solid light-emitting element and a second solid light-emitting element; a polarized-light combining unit that combines a first polarized light of a first oscillation direction and a second polarized light of a second oscillation direction substantially perpendicular to the second oscillating direction to guide the first polarized light and the second polarized light to an illumination direction by transmitting or reflecting the first polarized light and reflecting or transmitting the second polarized light; and a phase modulating element that converts a polarized light from the polarized-light combining unit into either of the first polarized light and the second polarized light.