Controllable aperture stop, compact camera module and electronic device
US11921417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Jun 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B30/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.