IR illumination Eye safe for ToF

iToF systems use active near-infrared illumination pulsed at a predefined modulation frequency. Recent developments in VCSEL technology combined with higher modulation frequency requirements have made VCSELs the preferred choice of flood illuminator over LEDs for ToF applications. Although illumination designs based on VCSEL flood illuminators are typically eye-safe under application conditions, the question arises what would happen in case of damage to the VCSEL diffuser.

This white paper, which you can download by leaving behind your contact details, goes into detail on how to achieve a cost-effective, fully eye-safe design based on interlock, a resistive layer in the VCSEL's diffuser.

For technical questions about your specific use case, a team of application engineers at Melexis will gladly assist you.