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:
Aug. 05, 1986
Filed:
Jun. 06, 1983
Applicant:
Inventors:
Gunter Fetzer, Gundelfingen, DE;
Jurgen Erdmann, Waldkirch, DE;
Assignee:
Erwin Sick GmbH Optik-Elektronik, Waldkirch, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G06K / ;
U.S. Cl.
CPC ...
356402 ; 235455 ; 235469 ; 250555 ; 250566 ; 356 71 ; 356445 ;
Abstract
In optical mark recognition apparatus the light transmitter has two light sources 11, 12 which can be selectively switched on and which transmit light beams of different spectral compositions. A semi-permeable mirror 15 directs the light beams 13, 14 of both light sources 11, 12 along a common optical path 16 (FIG. 1).