Driving mechanism
US-12165502-B2 · Dec 10, 2024 · US
Optical device
US9128239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9128239-B2 |
| Application number | US-201414287414-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 27, 2014 |
| Priority date | May 30, 2013 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
In an optical device, a first spring connects a first lens frame and a second lens frame for exerting a spring force thereon so that first pins of the first lens frame and second pins of the second lens frame abut a first cam groove and a second cam groove of a cam barrel respectively. A second spring connects the second lens frame and a third lens frame for exerting a spring force thereon so that the second pins of the second lens frame and third pins of the third lens frame abut the second cam groove and a third cam groove of the cam barrel respectively. The first spring may be a compression spring, and the second spring may be an extension spring.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical device, comprising: a straight advance barrel having an axis and a plurality of guiding grooves parallel to the axis; a cam barrel rotatably disposed around the straight advance barrel and having a first cam groove and a second cam groove; a first lens frame bearing a first lens group and having a plurality of first pins which extend through the guiding grooves and movably engage the first cam groove, wherein when the cam barrel rotates, the f…
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- What does patent US9128239B2 cover?
- In an optical device, a first spring connects a first lens frame and a second lens frame for exerting a spring force thereon so that first pins of the first lens frame and second pins of the second lens frame abut a first cam groove and a second cam groove of a cam barrel respectively. A second spring connects the second lens frame and a third lens frame for exerting a spring force thereon so t…
- Who is the assignee on this patent?
- Sintai Optical Shenzhen Co Ltd, Asia Optical Int Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02B7/04. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 08 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).