1. 
   Apostilb
   A photometric unit for measuring luminance where, instead of candelas, lumens are used to measure the luminous flux of a source. One Apostilb = 0.318309886183791 candela/m2.
   Found op http://www.zoo.co.uk/~z0001325/Glossary.html
   
   
2. 
   Apostilb
   A unit of surface luminance used when defining diffusing surfaces equal to 1 lumen m^-2. The apostlib equal to the brightness produced by 1/pi candela per square meter or 10^-4 lambert. See also: Illuminance.
   Found op http://www.diracdelta.co.uk/science/source/a/p/apostilb/source.html
   
   
3. 
   apostilb
   A unit of brightness equal to 0.1 millilambert. ... Origin: G. Apo, from + stilbe, lamp ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?apostilb
   
   
4. 
   apostilb
   Type: Term Pronunciation: ap′ō-stilb Definitions: 1. A unit of brightness equal to 0.1 millilambert.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=5618
   
   
5. 
   Apostilb
   The apostilb is an old unit of luminance, which was withdrawn from use in 1978.{By whom|date=August 2011}{Citation needed|date=August 2011} The SI unit of luminance is the candela per square metre (cd/m2). In 1942 it was proposed{By whom|date=August 2011} to rename the apostilb the blondel, after t...
   Found op http://en.wikipedia.org/wiki/Apostilb
   
   

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