System and method for detecting illuminance having a light sensor comprising a light emitting diode receiving a ray of light and generating a sensing voltage
US10928247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jun 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/446
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting an illuminance of the present invention includes a light source, a light sensor, and a signal output module. The light source includes a first A light-emitting diode, the first A light-emitting diode having a first color light; and the light source emits a first ray of light. The light sensor has a sensing face; the light sensor includes a first B light-emitting diode disposed on the sensing face, the first B light-emitting diode having the first color light; and the light sensor receives at least a portion of the first ray of light and generates a first sensing voltage. The signal output module is coupled to the light sensor to receive the first sensing voltage and output a sensing result signal according to the first sensing voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.