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5 results for ""Illumination Films"".
Found in catalogs (6)
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Educational Screen 1940 — page 355
…Over- size reflector, condenser and objective lens make possible 10% to 20';; greater screen illumination. Film take-up equal- izerand splendid electrodynamic speaker are…
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Educational Screen 1940 — page 311
…Over- size reflector, condenser and objective lens make possible 10% to 20<; greater screen illumination. Film take-up equal- izer and splendid electrodynamic speaker…
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Business Screen 1939 — page 280
…Oversize reflector, condenser and objective lens, make possible 10':i to 20''c greater screen illumination. Film take-up equal- izer and splendid electrodynamic…
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Business Screen 1939 — page 175
…An oversize reflector, condenser, and objective lens pep up the picture, provide 10 to 20'; greater screen illumination. Film takeup equalizer plus exxellent elec…
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Business Screen 1961,1962 — page 1132
…UNing a single 2S-\vatt lamp for illumination. Films a\ailable from 3M in- clude a direct reading positive and a color lift with…
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Business Screen 1955 — page 305
…Built-in Cue Marking Device. • Individual Framing and Focusing Controls. • Hi-Power projection lamp — easily replaced. • Lamp adjustment control for maximum illumination. Film may…