Introduction
LEDs are increasingly used in architectural illumination, lighting fixtures, and the automotive industry due to their small size and versatility. The LED Checker is a production measuring technique designed to evaluate LED and LED assembly groups.

Specifications
The LED Checker package includes interfaces for communication with process control systems. It can transfer results to external protocol files and programs. The system is adaptable for capturing high dynamic images across different color spaces and light intensities. It uses an imaging photometer or colorimeter to determine intensity gradients and uniformity of light sources.

Measuring Principles
LEDs can be measured directly or indirectly. Indirect measurement involves a diffusing screen to capture luminance and chromaticity coordinates. The system checks if all LEDs meet minimum intensity and color distance tolerances. It provides information on luminance distribution, partial luminous flux, and LED positioning.

Technical Data
The system uses a CCD imaging matrix sensor with resolutions ranging from 1380 x 1030 to 4008 x 4008 pixels. It supports various lenses for different fields of view. The dynamic resolution ranges from 1:1100 to 1:10000000, with A/D conversion at 12/14 Bit. The luminance measuring range is adjustable by integration time, and higher luminances can be achieved with ND grey filters.

Applications
The LED Checker is applicable in scenarios like emergency lights, where individual LED results are crucial. It can measure photometrical data such as Camera RGB, Lxy, and XYZ, and geometrical data like position and distance. The system can produce pseudo-colored luminance images and color images of LED assemblies.

Conclusion
The LED Checker provides a comprehensive solution for measuring and analyzing LED assemblies, ensuring they meet required specifications and tolerances.