Sockets and USB chargers in aircraft cabins have LED status indicators whose colors must be identical across all batches. The colorCONTROL MFA-14 LED analyzer measures the color and intensity of the LEDs in the end-of-line test and reliably detects the smallest deviations – regardless of position and product variant.
Image Credit: Micro-Epsilon
The colorCONTROL MFA-14 LED analyzer is used to ensure that red and green status indicators in aircraft cabins are perceived consistently. The system measures color and intensity directly on the LED indicator and reliably detects deviations within defined tolerances. This means that even the smallest differences in color can be reliably detected, which can be noticeable across entire rows of seats in the cabin.
In practice, the colorCONTROL MFA-14 is part of end-of-line test devices – including at Loll Feinmechanik GmbH, which develops sockets and USB chargers for aircraft cabins. In addition to the electrical function, the LED status indicator is also objectively tested so that the LEDs in each unit look identical. Up to 14 LEDs are checked simultaneously and precisely directly on the status indicator using MFS sensors. This means that every LED can be reliably evaluated and documented – even with changing designs and cramped installation conditions. Units outside the defined tolerances are rejected, while tested products with consistent color quality are approved.
The color measuring system detects relevant measured variables such as color values in common color spaces (e.g. XYZ/xyY/RGB), the dominant wavelength (λdom) for unambiguous evaluation of the main emission component and the color temperature (CCT). The colorCONTROL MFA-14 is suitable for automated test sequences in series production and evaluates LEDs objectively and reproducibly. This replaces or supports visual inspection, and the LED quality can be documented in a standardized manner.