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:
Jun. 16, 1992
Filed:
Sep. 12, 1990
Johannes H De Bie, Eindhoven, NL;
Leopold C Beirens, Eindhoven, NL;
U.S. Philips Corp., New York, NY (US);
Abstract
The device is provided with an optical fiber bundle (5) having a first linear end face (9) at the document side and a second end face (11) whose shape is adapted to the shape of the detection system (3). To reduce the quantity of disturbing light from the light source (43; 61, 62; 44), which may reach the detection system (3), to a maximum possible extent, and to increase the quantity of signal light from the document (1), the second end face (11) is provided with an optical system (13, 14; 50; 70) for an improved coupling in and for reflections. The first end face (9) may also be provided with an optical system (16, 17) for reducing unwanted reflections.