LED-test

LED testers (LED-Test) are used to measure hue (color) and intensity of a LED. They are available in a variety of models with some limited to a specific task such as detecting a particular color or checking if a LED is on or off. The LED light characteristics are analyzed by a sensor and the results are returned as a voltage or as a digital value, that can then be software-interpreted (or measured) to get the light intensity, color, correlated colour temperature and other useful information.

LED testers can be used in both functional and in-circuit test fixtures. In the case of ICT fixtures, LED to be tested are usually soldered to a PCB. Fiber-optic probes are placed near the LEDs to test and connected to LED sensors. The sensors are wired to the fixture’s base so that the measurement results can be read through the tester.

For functional fixtures, LED to test can also be on the final product enclosure for “as used” functional testing. Some “user-friendly” LED testing solutions are available.

DFT – MG-Products offer the solutions from Optomistic and Feasa as well as a dedicated solution for use in the VPC 90 sereis Mass Interconnect interafce. Software support and tools are available for each of the above solutions.