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. 25, 1986
Filed:
May. 29, 1984
Applicant:
Inventor:
Yoshio Yazaki, Chofu, JP;
Assignee:
ORC Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 67 ; 355 53 ;
Abstract
An exposure apparatus comprises a fly eye lens through which the light beam from a light source condensed by a first optical system is supplied to a second optical system which collimates the light to direct it to a work through a mask pattern so that the pattern is printed on the work, the fly eye lens being rotated to uniform the distribution of illuminance so that a clear printed pattern is formed on the work without interference fringes.