Phot

From Free net encyclopedia

A phot is a photometric unit of illuminance, or luminous flux through an area.
It is not a metric (SI) unit.

Metric equivalent units:

<math>1\ ph = \frac{10000\ lumens}{meter^2} = \frac{10\ kilolumens}{meter^2}</math>
1 ph = 10000 lux = 10 kilolux

Metric dimensions:

illuminance = luminous intensity × solid angle / length²

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See also

• Illuminance
• Lumen
• Lux
• Photometry (optics)
• Light

References

• Knowledgedoor, LLC (2005). Library of Units and Constants: Illuminance Quantity. Retrieved 20 May 2005.
• Illuminance Converter.de:Phot

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