Society of Motion Picture and Television Engineers - The Prefocusing Base and Socket for Projection Lamps

Author(s): R. S. Burnap
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 January 1926
Volume: 10
Page(s): 39 - 45
ISSN (Paper): 0096-6460
DOI: 10.5594/J10320
Regular:

This paper describes a special lamp base and a special socket for projection lamps. The lamp filament position is set accurately at the basing operation, so that lamps are interchangeable without... View More

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