Night-vision optical device with automatic infrared-cut function
US11550139B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Sep 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A night-vision optical device is provided, including a main body, a lens module, and a display module. The lens module includes an aperture element, a lens element, an electromagnetic driving assembly, an image sensor, and a digital signal processor. In response to an ambient light level around the night-vision optical device satisfying a predetermined condition, the digital signal processor (DSP) controls the night-vision optical device to enter a first mode, and controls the electromagnetic driving assembly to drive a first portion of a filter member to a first position to align an optical axis of the lens element. In response to the ambient light level not satisfying a predetermined condition, the DSP controls the night-vision optical device to enter a second mode, and controls the electromagnetic driving assembly to drive the second portion of the filter member to the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.