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:
Dec. 11, 1979
Filed:
Nov. 28, 1977
Applicant:
Inventors:
Assignee:
Dainippon Screen Seizo Kabushiki Kaisha, Kyoto, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; G11B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
358302 ; 17910031 ; 355 52 ; 358202 ;
Abstract
An aperture plate for use in the exposure head of a picture scanning reproducer which constructs an image by exposure of a film attached to a rotating drum in scanning mode, the aperture of which plate has a shape incorporating parallel lines and end portions consisting of twin lines opening up away from a cusp, which in some embodiments may be exponential curves, whereby overlap effects in the constructed image are substantially eliminated.