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. 13, 2007
Filed:
Nov. 10, 2004
Roland Bergbach, Kenzingen, DE;
Roland Bergbach, Kenzingen, DE;
Sick AG, Waldkirch, DE;
Abstract
A light barrier having a light emitter () spaced apart from a light receiver (), the emitter including a light source () and transmission optics () emitting a substantially parallel light beam. The light receiver () and the light emitter () are aligned with each other for focusing the light beam () from the light emitter () by means of reception optics () on a reception element () for generating an electrical signal as a function of the light received. A partially reflecting optical boundary surface between the reception optics () and the reception element (), and an alignment plate () which includes a light entry opening () and a target disk (), are positioned in front of the reception optics () and are used for aligning the light receiver () and the light emitter ().