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:
Sep. 19, 2000
Filed:
Jun. 22, 1998
Applicant:
Inventors:
Hans-Werner Pierenkemper, Emmendingen, DE;
Jurgen Reichenbach, Emmendingen, DE;
Assignee:
Sick AG, Waldkirch/Breisgau, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G06K / ;
U.S. Cl.
CPC ...
23546222 ; 23546223 ;
Abstract
A method is described for the determination of the position of the focus of an opto-electronic apparatus, in particular of a bar code reader, which transmits a light beam through a focusing lens. In the method the width of the transmitted light beam is determined at a specific reference position and the position of the focus is determined from the width that is found. Furthermore the invention is directed to an opto-electronic apparatus, in particular to a bar code reader for carrying out the method.