Cinematography. Production and presentation. Light sources and lighting. Specification for exciter lamps.
STANDARD published on 20.6.1961
Designation standards: BS 5550-7.1.1:1980
Publication date standards: 20.6.1961
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Category: Technical standards BS
Dimensions, optical performance of five types of lamp for 16 mm and 35 mm cinematograph projectors and similar applications. Lamps with bayonet and pre-focus caps, bulbs of pear and tubular shape, transverse and axial filaments. Values for initial light output and current consumption, minimum lumen output maintenance, hours life. Sampling batch testing. Status: Confirmed