A unit of illumination equal to one lumen per square centimetre.
More example sentences
- A centimeter- candle is a phot.
- Select this table to convert between different units such as lux, flame, phot, nox, lumen/square meter, meter-candle, and more.
early 20th century: from Greek phōs, phōt- 'light'.
Definition of phot in:
- The US English dictionary