2-3-100
A transparent or translucent gas-tight envelope enclosing the luminous element of a lamp.
Reference: C.I.E. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Contrast
Celsius (previously Centigrade)
Capacitance
charge current
Intensity
Illuminance
Energy
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM
