IES LM-20

IES Approved Method: Photometry of Reflector Type Lamps

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Organization: IES
Publication Date: 4 February 2013
Status: active
Page Count: 19
scope:

As used in this laboratory method, a reflector-type lamp is a lamp having a reflective element(s) intended to redirect flux from the emitting element (e.g., filament, arc) to form the intended spatial distribution of the light. For example, a reflective element might take the form of a reflective coating applied to the lamp bulb, or a reflector positioned relative to the emitting element and permanently affixed in this position. This laboratory method does not apply to the following: lamps of standard bulb shape to which an integral reflector is added such as silver-bowl and silvered-neck lamps; reflector-type lamps that are designed for special applications, such as automotive headlamps and projection lamps, for which lamp specific test procedures have been established; or lamps that are known to have special testing requirements beyond those addressed in this laboratory method such as linear fluorescent reflector lamps that have special temperature or orientation requirements.

Document History

IES LM-20
February 4, 2013
IES Approved Method: Photometry of Reflector Type Lamps
As used in this laboratory method, a reflector-type lamp is a lamp having a reflective element(s) intended to redirect flux from the emitting element (e.g., filament, arc) to form the intended...
January 1, 1994
Approved Method for Photometric Testing of Reflector-Type Lamps
A description is not available for this item.

References

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