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:
Dec. 08, 2009
Filed:
Sep. 25, 2007
Yasushi Kita, Tokyo, JP;
Shinichi Kojima, Tokyo, JP;
Takako Minoda, Tokyo, JP;
Naoko Takenobu, Tokyo, JP;
Yasushi Kita, Tokyo, JP;
Shinichi Kojima, Tokyo, JP;
Takako Minoda, Tokyo, JP;
Naoko Takenobu, Tokyo, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Abstract
An illuminating device able to easily visualize a pedestrian, etc. on a footway by the driver of an automobile is provided. The illuminating device has a footway side light source portion for irradiating light of spectral characteristics rich in blue-green color light to the footway, and a roadway side light source portion for irradiating light of spectral characteristics rich in green-red color light to a roadway. Further, the spectral characteristics of the light irradiated from the footway side light source portion are set such that a value Iobtained by the following formula (1) is greater than a value Iobtained by the following formula (1) from the spectral characteristics of the light irradiated from the roadway side light source portion.