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:
Nov. 07, 1995
Filed:
Jun. 29, 1993
Jean-Louis Massieu, Montauban, FR;
Serge Thuries, Saint-Jean, FR;
Reflexion Plus, Chatou, FR;
Abstract
An omnidirectional bar code label scanner includes a conventional deviator comprising a mirror rotating about a main axis at the center of a ring of reflective facets. A thin beam directed along the axis is deviated by 90.degree. to scan the successive facets and form a star pattern with 13 segments in a scanning plane. A light collector aimed at the scanning plane passes light reflected from a bar code label centered at a scanning center to a photosensor. To reduce the accuracy with which the label needs to be centered, a laser beam emitter directs a beam onto a rotating mirror a normal to which is at a small angle of inclination to the rotation axis. The reflected beam traces out a narrow aperture cone and is reflected 90.degree. by the fixed mirror towards the rotating mirror. As a result, the center of the star pattern traces out an ellipse around the scanning center.