SBAA615 December   2023 OPT4003-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Light Source Detection
  6. 3Light Source Ratios
  7. 4Design and Calibration Considerations
    1. 4.1 Cover Materials
    2. 4.2 Cover Glass Application Example
  8. 5Near Infrared Components of Common Light Sources
    1. 5.1 Incandescent
    2. 5.2 Halogen
    3. 5.3 Light Emitting Diode
    4. 5.4 Fluorescent
    5. 5.5 Sunlight
  9. 6Summary
  10. 7References

Abstract

Light sensors are becoming more common in many different applications that need to extract lighting information from the surrounding environment. In addition to intensity and color information, the need to detect the type of light source is becoming more important in many systems. The OPT4003-Q1 is a dual-channel ambient light sensor (ALS) that measures the intensity of both visible and near infrared (NIR) light. This application report describes how to use the information provided by the NIR channel to detect different types of light sources.