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BS 5550-7.1.1:1980
M00000284
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BS 5550-7.1.1:1980 Cinematography. Production and presentation. Light sources and lighting. Specification for exciter lamps
standard by BSI Group, 06/20/1961
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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.Cross References:
BS 52
BS 354