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:
Feb. 28, 2017
Filed:
Dec. 22, 2009
Gongming Wei, Shanghai, CN;
Yadong Liu, Shanghai, CN;
Henk Van Houten, Eindhoven, NL;
BO Liu, Shanghai, CN;
Hugo Johan Cornelissen, Eindhoven, NL;
Xiaoyan Zhu, Shanghai, CN;
Cornelis Reinder Ronda, Aachen, NL;
Hendrikus Albertus Adrianus Maria DE Ruijter, Shanghai, CN;
Gongming Wei, Shanghai, CN;
Yadong Liu, Shanghai, CN;
Henk van Houten, Eindhoven, NL;
Bo Liu, Shanghai, CN;
Hugo Johan Cornelissen, Eindhoven, NL;
Xiaoyan Zhu, Shanghai, CN;
Cornelis Reinder Ronda, Aachen, NL;
Hendrikus albertus adrianus maria de Ruijter, Shanghai, CN;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
To improve the illumination efficiency of hand-held illumination devices, this invention proposes a new illumination device having the 'rolling' function, which is capable of illuminating the target area on which a user is currently focusing and rolling the illuminated area as the user is reading forward or backward. The illumination device comprises two pluralities of lighting elements, an illuminating body and a controller. The controller can control one plurality of lighting elements to emit light to illuminate a part of the illuminating body, which can further deflect the light to a part of the surface of the target.