ANSI/IES LM-11 Photometric Measurement of Searchlights Using Incandescent or HID Sources

This Approved Method applies to lighting equipment having a total field angle of less than ten degrees. This includes equipment in which light is controlled by reflectors, lenses, or their combinations. The document applies to projectors with a variety of light sources, including tungsten filament, tungsten-halogen, and high intensity discharge lamps. It does not apply to projector systems composed of arrays of light emitting diodes.

LISUN following instruments fully meet ANSI/IES LM-11 Photometric Measurement of Searchlights Using Incandescent or HID Sources:

LMS-6000 Portable CCD Spectroradiometer

LSG-2000 Goniophotometer with Rotating Mirror

LSG-1890B High Precision Rotation Luminaire Goniophotometer

LSG-1700 Rotation Luminaire Goniophotometer

LSG-1200A Compact Goniophotometer

LSG-1900B Near Field Moving Detector Goniophotometer