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:
Sep. 29, 2015
Filed:
Mar. 18, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Tomonori Kimura, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A zoom lens includes, in order from the object side to the image plane side, first to fifth lens units having positive, negative, positive, negative and positive refractive powers. At least the second lens unit and the fourth lens unit move during zooming such that at the telephoto end, in comparison with the wide angle end, the interval between the first lens unit and the second lens unit increases, the interval between the second lens unit and the third lens unit decreases, the interval between the third lens unit and the fourth lens unit changes, and the interval between the fourth lens unit and the fifth lens unit increases, and the fifth lens unit does not move. The zoom lens further includes a reflection unit for bending a light path, between the fourth lens unit and the fifth lens unit.