Photometry

Photometry shows light distribution curves and metadata of IESNA and EULUMDAT photometric files which describe the light distribution of light sources like lamps and luminaires and are used mostly for data transfer in the lighting industry and in 3D graphics.

Photometry allows editing the source content of the opened photometric file and shows the following information contained in the opened files:

• Light distribution curves
• General information (Catalog Number, Manufacturer, Description, etc.)
• Photometric properties (Light Output Ratio and Downward Flux Fraction)
• Lamps and ballast information
• Luminaire and luminous opening geometry information
• Additional properties (Test number, issue date, test laboratory, etc.)
• Intensity Values for selected C planes and gamma angles

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• Keywords: Photometry, Photometric, IES, IESNA, EULUMDAT, LDT, Lighting, Light, Lamp, Luminaire