Brightness control method of illumination device, brightness control device and brightness control system
US11778711B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Apr 5, 2022 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Apr 5, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/597
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brightness control method of an illumination device includes: obtaining a brightness of ambient light, determining an amount of supplementary light according to the brightness of the ambient light and target brightness if the brightness of the ambient light is less than the target brightness, and generating a first pulse signal according to the amount of supplementary light to control the illumination device to emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.