Product 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.
Page count: 19 pages
Publisher: Illuminating Engineering Society (2020)
SKU: ANSI/IES LM-11-20
ISBN-13: 978-0-87995-012-5
Chapters:
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1.0 Introduction and Scope
2.0 Normative References
3.0 Nomenclature and Definitions
4.0 Physical and Environmental Test Conditions
5.0 Electrical Test Conditions
6.0 Testing Procedure Requirements
7.0 Reporting of Data
Citation Format:
Illuminating Engineering Society. ANSI/IES LM-11-20, Approved Method: Photometric Measurement of Searchlights Using Incandescent or HID Sources. New York: IES; 2020.