Lens apparatus and image pickup apparatus
US-2024361569-A1 · Oct 31, 2024 · US
Lens barrel
US9019403B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9019403-B2 |
| Application number | US-201314011908-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2013 |
| Priority date | Aug 31, 2012 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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A lens barrel includes a lens retaining member retaining a lens group and having a retaining-side cam follower, a moving member being movable in an optical axis direction with respect to the lens retaining member and having a moving-side cam follower, a rotary barrel having a retaining-side cam groove and a moving-side cam groove and being configured to rotate, thereby giving the lens retaining member and the moving member moving force; an elastic member giving the lens retaining member and the moving member relatively pushing force in the optical axis direction, and a rotating load restraining mechanism retaining rotating load of the rotary barrel generated by the pushing force. The rotating load restraining mechanism includes the moving-side cam groove provided such that the angle made by the part on which the moving-side cam follower abuts and the plane orthogonal to the optical axis becomes small, in a sharply inclined area.
First claim
Opening claim text (preview).
What is claimed is: 1. A lens barrel, comprising: a lens retaining member which retains a lens group including at least one or more lenses as optical members of a photographing optical system and is provided with a retaining-side cam follower for receiving moving force in an optical axis direction of the lens group; a moving member which is movable in the optical axis direction within a predetermined range with respect to the lens retaining member and is provided with a moving-s…
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- What does patent US9019403B2 cover?
- A lens barrel includes a lens retaining member retaining a lens group and having a retaining-side cam follower, a moving member being movable in an optical axis direction with respect to the lens retaining member and having a moving-side cam follower, a rotary barrel having a retaining-side cam groove and a moving-side cam groove and being configured to rotate, thereby giving the lens retaining…
- Who is the assignee on this patent?
- Ohya Takahiro, 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 Apr 28 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).