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:
Dec. 17, 1996
Filed:
Jul. 06, 1994
Charles McConica, Fort Collins, CO (US);
Virgil Russon, Greeley, CO (US);
Hewlett-Packard, Palo Alto, CA (US);
Abstract
First and second elongate curved reflecting surfaces positioned in non-parallel, spaced apart relation collect light from an elongate light source and direct it onto a scanning area. One edge of the first curved reflecting surface is positioned adjacent the light source and the opposite edge is positioned adjacent the illuminated scan area so that the first curved reflecting surface extends from about the light source to about the illuminated scan area. The second curved reflecting surface is positioned in opposed spaced-apart non-parallel relation to the first curved reflecting surface such that the distance separating the reflecting surfaces at the light source is less than the distance separating the reflecting surfaces at the end adjacent the illuminated scanning area. An elongate planar reflecting surface is positioned adjacent the second curved reflecting surface so that it is substantially perpendicular to the illuminated scan area. Some of the light rays from the light source are reflected by the first curved reflecting surface and the second curved reflecting surface onto the planar reflecting surface, which in turn reflects the light rays onto the illuminated scan area so that they are incident on the illuminated scan area at substantially oblique angles. Other light rays from the light source are directly reflected by either the first curved reflecting surface, the second curved reflecting surface, or by a combination of the two, onto the illuminated scan area so that they are also incident on the illuminated scan area at substantially oblique angles.