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:
Jan. 31, 2017
Filed:
May. 13, 2015
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 9/64 (2006.01); G02B 13/16 (2006.01); G02B 15/177 (2006.01); G02B 15/20 (2006.01); G02B 27/00 (2006.01); G02B 9/60 (2006.01); G02B 13/00 (2006.01); G02B 9/62 (2006.01); G02B 5/00 (2006.01); G02B 13/04 (2006.01); G02B 13/18 (2006.01); G02B 27/64 (2006.01);
U.S. Cl.
CPC ...
G02B 13/16 (2013.01); G02B 15/177 (2013.01); G02B 15/20 (2013.01); G02B 27/0025 (2013.01); G02B 5/005 (2013.01); G02B 9/60 (2013.01); G02B 9/62 (2013.01); G02B 9/64 (2013.01); G02B 13/002 (2013.01); G02B 13/009 (2013.01); G02B 13/0045 (2013.01); G02B 13/04 (2013.01); G02B 13/18 (2013.01); G02B 27/646 (2013.01);
Abstract
A projection zoom lens constituted by: a negative first lens group; a positive final lens group; and moving lens groups between the first and the final lens groups that move independently while changing magnification, satisfies the conditional formulae below:1.00<(2−2)/(2+2)  (1)0.00≦(2−3)/(2+3)<0.15  (2)2.5<Bf/Imφ  (9)