Camera shutter device having a two-armed lever
US12228851B2 · kind B2 · utility
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7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2021 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Oct 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera shutter device including an optical opening and an electromagnetic drive mounted fixedly relative to the opening, and having a linearly guided, movable part which is fixedly connected to a first shutter blade to form one unit. The unit is connected to a drive end of a two-armed lever which is rotatable about an axis of rotation. A counterweight is provided at an output end of the lever. A second weight force acting on the counterweight causes a second torque about the axis of rotation of the lever, which counteracts a first torque which is caused by a first weight force acting on the unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.