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:
Oct. 13, 1987
Filed:
Jun. 26, 1986
Applicant:
Inventor:
Yoshihiro Koyanagi, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 71 ; 354159 ;
Abstract
In a printer which uses a lens in its exposure system to transfer an image formed on a negative film or a cathode ray tube onto a printing medium, a conjugate length varying device including a projecting stand on which a paper mask is detachably mounted and a plurality of paper masks different in height from one another. The paper masks are selectively mounted on the projecting stand to change the conjugate length thereby to change the print size.