An Improved Condenser System for Motion Picture Projection
At Present there are four types of illumination in general use for motion picture projection. They are as follows: (1) The straight arc with 4½-inch diameter condensers. (2) The mazda lamp with condensers. (3) The high intensity arc with 4½-inch diameter condensers. (4) The low intensity reflector arc.
- Print ISSN
- 0096-6460
- Published
- 1927-09
- Content type
- Original Research
- DOI
- 10.5594/J06594
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