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. 02, 2013
Filed:
Dec. 13, 2006
Kazuhiro Goto, Himeji, JP;
Akihiko Sugitani, Himeji, JP;
Shoichi Terada, Himeji, JP;
Takahiro Toma, Himeji, JP;
Kazuhiro Goto, Himeji, JP;
Akihiko Sugitani, Himeji, JP;
Shoichi Terada, Himeji, JP;
Takahiro Toma, Himeji, JP;
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
A light source device which can also advantageously control the growth of the projection using the DMD type is achieved in a light source device which has an ultrahigh pressure discharge lamp) in which the silica glass discharge vessel is filled with greater than or equal to 0.15 mg/mmmercury and bromine; a feed device; an oval reflector; and a color wheel by the electrode on the side of the opening of the oval reflector of the discharge lamp having an increased diameter, and the relation 0.06<W/I<0.96 between the volume W (mm) of the tip area with increased diameter and the current value I being satisfied.