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:
Sep. 22, 2015
Filed:
Mar. 15, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Nobuyuki Saito, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, , JP;
Abstract
An illumination optical system includes: a stop configured to define an illumination range of a surface to be illuminated; an imaging optical system configured to form an image of an aperture of the stop onto the surface to be illuminated; an calculation unit configured to calculate an offset amount between a size of the aperture and a target illumination range of the surface to be illuminated using data on the target illumination range; and an adjusting unit configured to adjust the size of the aperture based on the calculated offset amount. The offset amount differs according to a size of the target illumination range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile