Introduction

The Feasa LED Analyzer is a color measurement system that allows fast and automatic testing of both the color and intensity (Brightness) of Light Emitting Diodes (LEDs). Each LED Analyzer can simultaneously measure up to 20 LEDs for Color and Intensity. Light from the LEDs is collected by Plastic optical fibers (POF) and carried to the LED Analyzer board for measurement and analysis. The unit has been designed for LED Testing.

The result of this analysis can be read out via the parallel interface or an RS232 serial interface. For applications with more than 20 LEDs multiple Color Analyzers can be used together.

The LED Analyzer can be used for both Functional testing and for In-Circuit test applications. It has also been implemented in vision applications.

Advantages of the Feasa Color Analyzer

The use of CMOS Image sensor technology ensures excellent repeatability and color discrimination

Highly accurate representation of the LED color in different color space.

Easy installation.

Uses 1mm plastic optic fiber (POF) which can be worked on easily using many off the shelf tools.

Very suitable for applications where space is at a premium.

The Feasa LED Color Analyzer has been used in applications such as a single LED indicator on a control panel, 120 LEDs on an automotive switch panel, 50 LEDs on a Network hub, 20 LEDs on a SCSI disk backplane and a multitude of applications in between.

Summary

In summary the Feasa Color Analyzer is a highly accurate, highly repeatable, adaptable, easy to use, fast and fully automated LED color measurement sensor which has found many applications in the PCB industry on both functional and In-Circuit test equipment.