Question:
How Do You Test LEDs For Color AND Brightness?

Solution:
The LED Analyser is a color measurement system that allows fast and automatic testing of both the color and intensity (Brightness) of Light Emitting Diodes (LEDs) which are mounted on a printed circuit board. Each Analyser 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 Analyser 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 Analysers can be used together.

This unit can be used for both Functional testing and for In-Circuit Test (ICT) applications. We have developed custom models Agilent 3070 and Teradyne (GenRad) TestStations/228x test systems. The LED Analyser has also been used on other ICT systems, such as CheckSum and Teradyne Z18XX Series.      

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Potential Customers:
Anyone that uses LEDs on their products. With the growing demands of LED applications in Automotive, Electronics, Lighting and Signage, manufactures are seeking ways to benefit from automating their testing globally with LED Analyser.

                     Artwork                                Illuminating The Stairs                             Head Lights of Cars                            Industrial Signage

Advantages of the LED Analyser:
+ The use of CMOS Image sensor technology ensures excellent repeatability and color discrimination
+ Highly accurate representation of the LED color in different color space i.e. RGB and HSI (Hue Saturation and Intensity).
+ Performance is not affected by LED intensity, temperature or ambient lighting.
+ Easy installation.
+ Uses .5 mm (1mm with jacket) 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 LED Analyser 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.

The LED Analyser is a highly accurate, highly repeatable, adaptable, easy to use, fast and fully automated color measurement sensor which has found many applications in the electronics industry.

Test How Bright You Are, With LED Analyser