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:
May. 27, 1997
Filed:
Sep. 19, 1995
Lei Ge, Shanghai, CN;
Murray R Zink, Waterloo, CA;
NCR Corporation, Dayton, OH (US);
Abstract
An apparatus comprises an imaging camera including a frame part and a tubular lamp for providing light for the camera. The apparatus further comprises a device connected between the frame part of the camera and an end of the lamp for (i) grounding out electrostatic charge on an outer surface of the lamp, (ii) dissipating heat generated by the lamp and (iii) gradually correcting brightness roll-off at the end of the lamp to produce a uniform illumination of an imaging field of the camera. The device includes (i) a reflector portion for reflecting light from the lamp and (ii) a locating portion for locating the reflector portion relative to the lamp such that light reflected from the reflector portion cooperates with light from the lamp to gradually correct brightness roll-off at the end of the lamp to produce the uniform illumination of the imaging field of the camera.