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:
Mar. 30, 1993
Filed:
Mar. 19, 1991
Manabu Goto, Yokohama, JP;
Ushio Denski Kabushiki Kaisha, Tokyo, JP;
Abstract
In a film exposure apparatus and method of exposure using the same which are disclosed herein, a plurality of frames arranged in a longitudinal direction of a belt-shaped film are exposed sequentially to light for transcript of an image onto each of the frames. The film exposure apparatus comprises an illumination system, a photomask disposed at a location to which light from the illumination system is applied, a photomask position adjusting mechanism, a projection lens of projecting an image of the photomask irradiated, and a film feed mechanism for step-feeding the film one frame by one frame. The belt-shaped film is provided with at least two or more film-side alignment marks on each frame, and the photomask is provided with a circuit pattern whose image is to be projected and transferred onto the film, and photomask-side alignment marks in correspondence to the film-side alignment marks.