Journal of the Society of Motion Picture Engineers (1930-1949)

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1949 LIGHTING DISTORTION IN TELEVISION 629 •< § . WRATTEN FILTER NO 7 0 WAVELENGTH ANGSTROMS ULTRA VIOLET | VIOLET | IYELLOWJ Fig. 6 — Photoeffectiveness of 5769 image orthicon with 3500 white fluorescent lamps. into the camera lens is avoided. In contrast to the general illumination, the equipment for modeling and back lighting must be accurately controllable in both beam pattern and intensity in order that light 2 CC .012 i y .004 2 WAVELENGTH IN ANGSTROM UNITS Fig. 7 — Spectral sensitivity of 5820 image orthicon. RCA