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. 14, 2015
Filed:
Aug. 27, 2009
Qiaomei Tang, Shanghai, CN;
Guofeng Chen, Shanghai, CN;
Qiaomei Tang, Shanghai, CN;
Guofeng Chen, Shanghai, CN;
Abstract
A distance detecting induction device includes a casing, a circuit board within the casing, and a pair of focusing lenses provided at respective openings in the casing. The distance detecting induction device further includes an emitting device including an infrared light emitting diode for emitting infrared light rays to the emitting lens and a receiving device including a distance detection induction module for inducing reflected light rays focused by the receiving lens. The distance detecting induction device further includes an emitting light ray guiding device arranged between the emitting lens and the emitting device. The guiding device includes a small circular hole provided at a position of the emitting device and a big circular hole provided at a position of the emitting lens.