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Article: PHOTOMETRY INFORMATION.(Brief Article)
- Article from:
- Buildings
- Article date:
- September 1, 2000
CopyrightCOPYRIGHT 2000 Stamats Communications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Basic Language and Presentation
LUMINAIRE ORIENTATION
CANDELA TABULATION
Presenting the raw data used for all illuminance calculations, the information is tabulated with the Vertical Angles in rows and Lateral Angles in columns.
Lateral values from 0[degrees] to 90[degrees] are in front of the luminaire and referenced as "Street Side." Lateral values from 90[degrees] to 180[degrees] are behind the luminaire and referenced as "House Side."
Vertical values from 0[degrees] to 90[degrees] are below the fixture, while values 90[degrees] to 180[degrees] are at the fixture level and above.
Candela data is also used to ...