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:
Jun. 06, 2006
Filed:
Sep. 10, 2004
Applicants:
Eijiroh Tada, Saitama, JP;
Takayuki Ito, Saitama, JP;
Inventors:
Eijiroh Tada, Saitama, JP;
Takayuki Ito, Saitama, JP;
Assignee:
PENTAX Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/14 (2006.01); G02B 9/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ultraviolet imaging system includes at least two negative lens elements, and at least two positive lens elements. The ultraviolet imaging system satisfies the following conditions:−3<<−0.5  (1)65<ν (ALL)  (2)0<ν()−ν()<10  (3)wherein