EULUMDAT

EULUMDAT is a data file format used for specification of photometric data especially intensity distributions from light sources such as lamps and luminaries. The file extension is .ldt. The format was proposed by Axel Stockmar (Light Consult Inc., Berlin) in 1990. The format is the European equivalent to the IES file format specified in IESNA LM-63.[1] The data in an EULUMDAT file is usually measured using a goniophotometer. The IES file format is more formally specified and many measuring instruments support both formats of file.

Example of an EULUMDAT diagram, generated by the software QLumEdit 1.0.1

References
  1. ANSI Approved Standard File Format for Electronic Transfer of Photometric Data and Related Information. ANSI/IESNA. 2002.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.