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. 03, 2010
Filed:
Apr. 24, 2007
Masao Kinoshita, Shizuoka, JP;
Akinori Matsumoto, Shizuoka, JP;
Takehiko Tajima, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A lamp unitis provided with a reflecting facefor an overhead sign and a light receiving facefor the overhead sign. The reflecting facefor an overhead sign reflects light from a light sourceand is provided on an upper side of the light sourceand rearward from a rear side focal point F of a projector lens. The light receiving facefor the overhead sign is provided on a front side of a movable shadearranged between the projector lensand the light source. The light receiving faceforms overhead sign irradiating light Pby reflecting light from the reflecting facefor the overhead sign to the projector lens. Illuminance reducer for reducing a portion of irradiating light is provided at a position of a vicinity of an upper end of the movable shadeof the light receiving facefor the overhead sign.