Hefner candle (HC) or Hefnerkerze (HK)


Hefner candle (HC) or Hefnerkerze (HK) :

A former unit for measuring the intensity of light. The unit is named for F. von Hefner-Altenack (1845-1904), who invented a laboratory light standard, the Hefner lamp, which burned isopentyl acetate to provide light of intensity 1 HK. One Hefner candle is equivalent to approximately 0.902 candela (cd).

No records Found
afaatim.com copyright © April 2016 Dr.K.R.Kamaal. All rights reserved