The 4900 Autocal fiber optic illuminator is available from Illumination Technologies Inc. It features proprietary Light-Lock technology with a NIST-traceable autocalibration routine for stable output. The company says the autocalibration feature provides unit-to-unit consistency for multiple systems. The standard model has a 150-W tungsten halogen lamp. Other features include an RS-232/-485 interface, automated control of lamp intensity and power functions, and real-time diagnostics. Custom and OEM versions and an Ethernet interface are available. The light source is suitable for machine vision applications and for sensor calibration.