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. 04, 2016
Filed:
Dec. 16, 2014
Olympus Corporation, Tokyo, JP;
Yasuji Ogata, Tokyo, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A zoom lens includes in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit. At a telephoto end, with respect to a wide angle end, a distance between the first lens unit and the second lens unit widens, and a distance between the second lens unit and the third lens unit narrows. At the time of zooming from the wide angle end to the telephoto end, a distance between the third lens unit and the fourth lens unit changes, and the zoom lens satisfies the following conditional expressions (1) and (2).1.1<<1.8  (1)−0.5<Δ<0.5  (2)