Zoom lens and image pickup apparatus equipped with same

US8994842B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8994842-B2
Application numberUS-201314070926-A
CountryUS
Kind codeB2
Filing dateNov 4, 2013
Priority dateNov 8, 2012
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A zoom lens includes a frontmost lens unit, which is located closest to the object side and a plurality of lens units located closer to the image side than the frontmost lens unit. All the distances between adjacent lens units vary during zooming in the state in which the zoom lens is focused on an object at infinity. One of the plurality of lens units is a first focusing lens unit. During focusing from an object at infinity to an object at a short distance in a first shooting mode, only the first focusing lens unit moves. During focusing from an object at infinity to an object at a short distance in a second shooting mode, two lens units in the zoom lens move.

First claim

Opening claim text (preview).

What is claimed is: 1. A zoom lens comprising: a frontmost lens unit, which is located closest to the object side; and a plurality of lens units located closer to the image side than the frontmost lens unit, wherein all the distances between adjacent lens units vary during zooming in the state in which the zoom lens is focused on an object at infinity, one of the plurality of lens units is a first focusing lens unit, during focusing from an object at infinity to an object…

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What does patent US8994842B2 cover?
A zoom lens includes a frontmost lens unit, which is located closest to the object side and a plurality of lens units located closer to the image side than the frontmost lens unit. All the distances between adjacent lens units vary during zooming in the state in which the zoom lens is focused on an object at infinity. One of the plurality of lens units is a first focusing lens unit. During focu…
Who is the assignee on this patent?
Olympus Imaging Corp
What technology area does this patent fall under?
Primary CPC classification H04N23/667. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).