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References

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  1. J. O. S. A. 20, 11; 1930.
    [Crossref]
  2. Photographic JournalSept.1929, p. 402.
  3. The disc and film could be similarly separated in the form of apparatus shown in Fig. 1 although the necessity is not so apparent.

1930 (1)

J. O. S. A. 20, 11; 1930.
[Crossref]

1929 (1)

Photographic JournalSept.1929, p. 402.

J. O. S. A. (1)

J. O. S. A. 20, 11; 1930.
[Crossref]

Photographic Journal (1)

Photographic JournalSept.1929, p. 402.

Other (1)

The disc and film could be similarly separated in the form of apparatus shown in Fig. 1 although the necessity is not so apparent.

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Figures (4)

F. 1
F. 1

Sectional view of television sending apparatus for transmitting from colored motion picture film. A, light source; D, scanning disc; M, synchronous motor; C, photoelectric cell cabinet containing three sets of color sensitive cells with appropriate filters; F, motion picture film; L, projection lens; S, white screen.

F. 2
F. 2

Two forms of scanning disc for use with motion picture film. D1, disc with holes in spiral arrangement, with a blank sector corresponding to the interval between frames in intermittent projection. D2, disc with holes in circular arrangement for use with film in continuous uniform motion.

F. 3
F. 3

Television scanning apparatus for use with Kodacolor (colorless) ridged film. A, light source; C, condensing lens; F, film; S, slot, transverse to direction of film motion; D, scanning disc, provided with radial slots R; L, projection lens; T, position of color filters used for screen projection; P1, P2, P3, three photoelectric cells; M, mirrors.

F. 4
F. 4

Alternative arrangement of scanning apparatus for use with Kodacolor film. The elements are the same as in Fig. 3, except that the film is imaged on the disc D by the lens system L1, L2, and an additional lens L3 beyond the disc images the three apertures of the projection system onto the photoelectric cells.