IES LM-11-20 Approved Method: Photometric Measurement of Searchlights Using Incandescent or HID Sources

standard by Illuminating Engineering Society, 02/07/2020

Full Description

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.

Product Details

Published: 02/07/2020 ISBN(s): 9780879950125 ANSI: ANSI Approved Number of Pages: 31 File Size: 1 file , 2.4 MB