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:
Mar. 03, 2015
Filed:
Jul. 23, 2012
Applicants:
John Harper, Chesterbrook, PA (US);
Yevgeniy Vinshtok, Downingtown, PA (US);
Justin Leedy, Lebanon, PA (US);
Inventors:
John Harper, Chesterbrook, PA (US);
Yevgeniy Vinshtok, Downingtown, PA (US);
Justin Leedy, Lebanon, PA (US);
Assignee:
IFM Electronic GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/78 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical proximity switch includes an optical transmitter for emitting a light signal, a transmitting lens with total internal reflection-using the light signal to form and transmit a light beam , a receiver, an imaging receiving lens for receiving and transmitting to the receiver the light signal, and an electronic circuit for evaluating the light signal received by the receiver.