Optical apparatus
US10416411B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Oct 31, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/0356
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The optical apparatus includes, as actuators to move a movable member in a first direction, a first coil and a second coil provided to a base member or the movable member, and a first magnet and a second magnet provided to the movable member or the base member. The first magnet has a first surface facing the first coil, and the second magnet has a second surface facing the second coil. Each of the first and second surfaces has thereon N- and S-pole portions arranged in the first direction. In a state where the movable member is located at a center of its movable range, center positions of the first and second coils have differences from boundary positions of the N- and S-pole portions of the first and second magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.