Lens barrel
US-9182568-B2 · Nov 10, 2015 · US
Barrier device, lens barrel, and imaging apparatus including same
US8974129B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8974129-B2 |
| Application number | US-201414156577-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2014 |
| Priority date | Jan 28, 2013 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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There is provided a barrier device including a main barrier blade and a sub barrier blade. In the operation range of the main barrier blade and the sub barrier blade, a portion of the contacting surface provided on the sub barrier blade that contacts on the main barrier blade is located within the operation range of the contacting surface provided on the main barrier blade that contacts on the sub barrier blade.
First claim
Opening claim text (preview).
What is claimed is: 1. A barrier device comprising: a first shielding member configured to be shifted between a closed state in which a lens is shielded and an open state in which the lens is exposed; a second shielding member configured to be shifted between the closed state and the open state; and a driving member configured to drive the first shielding member to be shifted to the closed or open state, wherein in a case where the first and second shielding members are shif…
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Classifications
- G03B11/043Primary
Physics · mapped topic
- G03B9/14Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8974129B2 cover?
- There is provided a barrier device including a main barrier blade and a sub barrier blade. In the operation range of the main barrier blade and the sub barrier blade, a portion of the contacting surface provided on the sub barrier blade that contacts on the main barrier blade is located within the operation range of the contacting surface provided on the main barrier blade that contacts on the …
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03B11/043. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 10 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).