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. 01, 2001
Filed:
Dec. 21, 1998
Robert T. Krogstad, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method of accurately measuring control film density regions comprising: exposing a photosensitive film to a modulated laser beam at three known laser beam intensities representing maximum, midrange and minimum intensities to form corresponding separate sequential density regions in said film having maximum density D,, midrange D,and minimum density D,, using a densitometer, taking a first set of density readings of said maximum density region of said film, taking a second set of density readings of said midrange density region of said film, and taking a third set of readings of said minimum density region of said film; wherein said density readings are sequentially taken as said film is moved past said densitometer; and as a first try, determining D,as the average of a subset of said first set of density readings which are taken in the control portion of said maximum density region; determining D,as a preselected value; and determining D,=D,+a(D,−D,) where a is a fraction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile