A light detection module has N optical channels, each with an optical filter, a detector, and an amplifier; and an N×1 switch with N input ports each connected to one corresponding output port of each channel to receive an amplified detector output corresponding to a filtered optical intensity incident on that detector. The switch cycles between channels, connecting each amplified detector output in turn to the output port. An ADC samples a time dependent optical intensity signal from the switch, generating a corresponding ADC digital signal output. A microcontroller, connected to the N×1 switch and the ADC, controls acquisition by the ADC to provide a digital voltage data stream from each channel; making the average optical intensity value characterizing the voltage data stream available from each channel at a digital output port of the microcontroller, as N data values, characterizing the light incident on the N channels of the module.
System and method for illumination source identification
2024-07-04
Patent
Electronic Resource
English
IPC: | G01J Messen der Intensität, der Geschwindigkeit, der spektralen Zusammensetzung, der Polarisation, der Phase oder der Pulscharakteristik von infrarotem, sichtbarem oder ultraviolettem Licht , MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT / B64G Raumfahrt , COSMONAUTICS |
ILLUMINATION FIXTURE, ILLUMINATION SYSTEM, AND ILLUMINATION CONTROL METHOD
European Patent Office | 2021
|European Patent Office | 2020
|Repetitively pulsed plasma illumination source improvements
British Library Conference Proceedings | 1999
|