Automated selection of LEDs by luminance and chromaticity coordinate

TL;DR

This paper presents an automated method for selecting LEDs based on luminance and chromaticity, improving efficiency over manual pre-selection for small quantities, and discusses measurement challenges and market trends.

Contribution

It introduces an automated LED pre-selection system developed through industry collaboration, addressing limitations of manual sorting for small batch quantities.

Findings

Automated selection improves efficiency for small LED batches.

The system addresses measurement technology challenges.

Market trends favor automated LED sorting solutions.

Abstract

The increased use of LEDs for lighting purposes has led to the development of numerous applications requiring a pre-selection of LEDs by their luminance and / or their chromaticity coordinate. This paper demonstrates how a manual pre-selection process can be realized using a relatively simple configuration. Since a manual selection service can only be commercially viable as long as only small quantities of LEDs need to be sorted, an automated solution suggests itself. This paper introduces such a solution, which has been developed by Harzoptics in close cooperation with Rundfunk Gernrode. The paper also discusses current challenges in measurement technology as well as market trends.