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:
Jun. 25, 1985
Filed:
Jun. 13, 1983
Tsuneo Takagi, Kurita, JP;
Hiroyuki Yonehara, Hikone, JP;
Dainippon Screen Seizo Kabushiki Kaisha, Kyoto, JP;
Abstract
Controlling the exposure time in the reciprocity law failure range of a photosensitive material, in a picture reproducing machine, wherein the response time variation cause by variations is corrected according to the operational equation for the reciprocity law when the photosensitive material is in its linear range, by exposing said photosensitive material for a time t.sub.m in accordance with the relationship; ##EQU1## wherein T.sub.0 is the correct exposure time in the absence of reciprocity law failure, M.sub.i is the desired reproduction scale and P is an empirically determined coefficient which is greater for enlargements than reductions.