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:
Apr. 27, 2004
Filed:
Jan. 25, 2002
Hidetoshi Nishikawa, Wakayama, JP;
Noritsu Koki, Co., Ltd., Wakayama, JP;
Abstract
A film scanner useful in a digital printing system. A first light source projects light onto film which holds an original image. A scanner registers an image corresponding to the original image by scanning light transmitted through the film. Insufficient light quantity caused by irregularities in the surface of the film is compensated. The compensation is preferably provided in a domain on a side of the film opposite the scanner. The compensation may be provided by a second light source having a plurality of light emitters having different respective spectral characteristics. Light quantity of the second light source is adjustable. Preferably the light emitters of the first light source have directivity in a plurality of directions intersecting with a light axis from the first light source to the scanner and the directivity of the light emitters is adjustable.