Optical driving apparatus and optical apparatus
US11754801B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2021 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical driving apparatus includes an actuator configured to drive an optical element holder in an optical axis direction, a first rolling member and a second rolling member each fixed rollably to the optical element holder, a first guide member configured to guide the optical element holder in the optical axis direction, a second guide member configured to restrict the optical element holder from rotating around the first guide member, a first biasing member configured to generate a first biasing force to press the first rolling member against the first guide member, and a second biasing member configured to generate a second biasing force to press the second rolling member against the second guide member. The first biasing member generates the first biasing force as a magnetic force. A reaction force of the second biasing force acts on the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.