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:
May. 05, 2009
Filed:
Jan. 03, 2007
Yoshinori Kakuta, Tokyo, JP;
Yoshinori Kakuta, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A light source device includes a first spheroidal mirror having first and second focal points, and a light source unit having a plurality of semiconductor light emitting elements radially disposed on a support with respect to the axis of rotation of the first spheroidal mirror. Light beams from the semiconductor light emitting elements pass through the second focal point, reflect from the inner surface of the first spheroidal mirror, and are focused to the first focal point, and the axis of rotation and the light emission central axis of each of the semiconductor light emitting elements form an angle of 90 degrees or greater. The light source unit is removably attached to an opening provided at a non-reflective portion of the first spheroidal mirror so as to form an illumination unit.