Encyclopedia

luminaire classification

luminaire classification

1. For indoor luminaires, a classification system based on the percentage of flux which is emitted by the luminaire, above (or below) a horizontal plane through the center of the luminaire.
2. Floodlights: a measure of the beam spread in terms of beam angle ranges: type I, beam angle 10° to 18°; II, 18° to 29°; III, 29° to 46°; IV, 46° to 70°; V, 70° to 100°; and VI, above 100°.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive
* TM-15-07: "Luminaire Classification System for Outdoor Luminaires"
State legislatures have been busy: individual states pursuing different outdoor lighting regulations can pose a dilemma for the industry
Both methods rely on the Backlight, Uplight, and Glare (BUG) rating system as described in IES TM-15-11, Luminaire Classification System for Outdoor Luminaires [IESNA 2011].
Photometric imprecision can limit BUG rating utility
Paul Lutkevich (Illuminating Engineering Society of North America) discussed a new luminaire classification being developed by IESNA that will gauge roadway lighting fixtures more accurately in terms of light trespass, skyglow, and glare.
The Light Pollution Fight Goes Mainstream
IES TM-15-07 established the Luminaire Classification System (LCS) [IES 2007].
IES TM-15 BUG value-setting and adjustment methodology
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.