Optical module and projector with same
US11237465B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Mar 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical module including a base, an outer frame, an inner frame, a transparent element, two first coil portions, two first magnetic portions is provided. The outer frame is pivoted to the base. The inner frame is disposed in the outer frame. The transparent element is disposed in the inner frame. The first coil portion is disposed between the base and the outer frame. The first magnetic portion is disposed between the base and the outer frame, and each of the two first magnetic portions is spaced with the corresponding first coil portion. When a power supply is adapted to provide a current to the first coil portion, each of the two first coil portions is magnetized and forms an electromagnetic force with magnetic field of the corresponding first magnetic portion, and the electromagnetic forces are adapted to drive the transparent element pivotally swinging relative to the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.