Methods and systems for camera-based ambient light estimation
US10775235B2 · kind B2 · utility
1Cited by
6References
10Claims
0Family size
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Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting unit (10) for estimating an amount of daylight in a lighting environment includes: a light source (12); a filter (330) configured to block incident light in a first wavelength range, the incident light comprising both daylight and non-daylight incident light; a camera (32) configured to receive the filtered incident light and generate a detection signal (342), the filtered incident light being outside the first wavelength range; and a controller (22) in communication with the camera and configured to process the detection signal to estimate the amount of daylight incident light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.