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:
Oct. 20, 1998
Filed:
Jun. 11, 1996
Takeshi Fujishiro, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An optical fixing device of a color thermal printer is used for fixing one of three color developing thermosensitive layers of a color thermosensitive recording medium. A pair of lamps are disposed side by side in a reflector of the optical fixing device, for projecting electromagnetic rays of a specific wavelength range toward the color thermosensitive recording medium. A plurality of apertures are formed through the reflector to provide a light path from each of the lamps to a single photosensor, wherein distances from the lamps to the photosensor are different from each other, and incident angles of the respective light paths onto the photosensor are determined such that the photosensor may receive an equal amount of electromagnetic rays from each of the lamps under the same conditions.