Abstract
When the detection area of light-screen becomes larger, the optical and optoelectronic properties of light-screen will be
affected and weaken its detection sensitivity. To improve the detection sensitivity and performance under the large detection
area light-screen, this paper analyzes and designs a new light-screen based on array emitting diode and array receiving
detector, studies the optical and optoelectronic properties of array emitting diode and its distribution of light energy, sets up
the optoelectronic properties calculation model from which the array emitting diode’s transmitting power and detection output
signal, provides light energy distribution mathematical model. Through simulation calculation and contrast experiment, the
results show that the detection performance of new design large detection area light-screen has improved obviously, and the
calculation model of optical, optoelectronic properties and light energy distribution in detection screen area is correct and
feasible..
Keywords
Light-screen, Detection sensitivity, Optoelectronic properties, Light energy distribution.
Citation
HANSHAN LI, XIONG CHEN, Optical and optoelectronic properties of light-screen under large detection area, Optoelectronics and Advanced Materials - Rapid Communications, 9, 7-8, July-August 2015, pp.907-914 (2015).
Submitted at: Oct. 30, 2014
Accepted at: June 24, 2015