Lens apparatus and image pickup apparatus
US-2024361569-A1 · Oct 31, 2024 · US
Lens barrel
US8970971B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970971-B2 |
| Application number | US-201113170523-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2011 |
| Priority date | Jun 30, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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Abstract
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A lens barrel includes a plurality of lens groups including a retractable lens group, a plurality of lens retaining frames to retain the plurality of lens groups, a movable lens barrel to retain the plurality of lens retaining frames therein, and a fixed cylinder portion to retain the movable lens barrel therein. The plurality of lens retaining frames, the movable lens barrel and the fixed cylinder portion are configured to move the plurality of lens groups between a collapsed state with at least one portion of the plurality of lens groups collapsed and a photographing state. The plurality of lens retaining frames include a retractable lens retaining frame configured to movably retain the retractable lens group so as to position the plurality of lens groups in photographing positions on a single optical axis in the photographing state and to retract the retractable lens group to a retracted position outside an inside diameter position of the fixed cylinder portion in the collapsed state. The retractable lens retaining frame moves the retractable lens group between the photographing position and the retracted position by a driving force to drive the movable lens barrel relative to the fixed cylinder portion.
First claim
Opening claim text (preview).
What is claimed is: 1. A lens barrel device comprising: a plurality of lens groups including at least one retractable lens group; a plurality of lens retaining frames configured to retain the plurality of lens groups, respectively; a movable lens barrel configured to retain the plurality of lens retaining frames therein, a fixed cylinder portion configured to retain the movable lens barrel therein, a zoom motor for driving the movable lens barrel relative to the fixed cyli…
Assignees
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Classifications
Electricity · mapped topic
- G02B7/102Primary
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8970971B2 cover?
- A lens barrel includes a plurality of lens groups including a retractable lens group, a plurality of lens retaining frames to retain the plurality of lens groups, a movable lens barrel to retain the plurality of lens retaining frames therein, and a fixed cylinder portion to retain the movable lens barrel therein. The plurality of lens retaining frames, the movable lens barrel and the fixed cyli…
- Who is the assignee on this patent?
- Ooya Takahiro, Yoshida Katsunobu, Ricoh Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02B7/102. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 03 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).