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. 23, 2020
Filed:
Sep. 27, 2017
Olympus Corporation, Hachioji-shi, Tokyo, JP;
Toyoki Kon, Hachioji, JP;
Kazuteru Kawamura, Hachioji, JP;
Yasuharu Yamada, Sagamihara, JP;
Tetsuya Yanai, Akiruno, JP;
Daichi Murakami, Hachioji, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
A zoom lens includes in order from an object 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, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit includes a positive lens, and the second lens unit includes a positive lens, and the following conditional expressions (1), (2), (3), and (4) are satisfied:−0.015≤≤0.015  (1),70.3≤ν  (2),1.76≤≤2.3  (3), and0.3≤||≤0.9  (4).