Definitions

flame lamp

Hefner lamp

Hefner lamp in chemistry is a flame lamp that burns amyl acetate.

The lamp was invented by Friedrich von Hefner-Altenec in 1884 and he proposed its use as a standard flame for photometric purposes.

The Hefner lamp provided the German standard for luminosity during the late nineteenth and early twentieth centuries. The unit of light intensity was defined as that produced by the lamp burning amyl acetate with a 40 mm flame height.

See also

Search another word or see flame lampon Dictionary | Thesaurus |Spanish
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;