Zoom lens and imaging apparatus including the same
US-2024134166-A1 · Apr 25, 2024 · US
Zoom lens and image-pickup apparatus
US9268118B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9268118-B2 |
| Application number | US-201314062989-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 25, 2013 |
| Priority date | Oct 30, 2012 |
| Publication date | Feb 23, 2016 |
| Grant date | Feb 23, 2016 |
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Abstract
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A zoom lens includes, in order from an object side to an image side, a first, a second, a third, a fourth, a fifth, a sixth and a seventh lens units respectively having positive, negative, positive, negative, positive, negative and positive refractive powers. A distance between adjacent lens units change during zooming so that a distance between the fourth lens unit and the fifth lens unit at a telephoto end is shorter than the distance at a wide angle end and a distance between the fifth lens unit and the sixth lens unit at the telephoto end is longer than the distance at the wide angle end. And the fourth lens unit moves during focusing.
First claim
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What is claimed is: 1. A zoom lens comprising: 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; a fourth lens unit having a negative refractive power; a fifth lens unit having a positive refractive power; a sixth lens unit having a negative refractive power; and a seventh lens unit having a positive refractiv…
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Physics · mapped topic
- G02B15/173Primary
Physics · mapped topic
Physics · mapped topic
- G02B15/1461Primary
Physics · mapped topic
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- What does patent US9268118B2 cover?
- A zoom lens includes, in order from an object side to an image side, a first, a second, a third, a fourth, a fifth, a sixth and a seventh lens units respectively having positive, negative, positive, negative, positive, negative and positive refractive powers. A distance between adjacent lens units change during zooming so that a distance between the fourth lens unit and the fifth lens unit at a…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G02B15/173. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 23 2016 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).