The history of three-color photography (1925)

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Cinematography in Colors 613 44. U.S.P. 1,289,940; E.P. 126,220, 1918; Brit. I. Phot 1919, 66, 386; Col. Phot. Supp. 12, 26; F.P. 385,249; 513,802; abst. Sci. Tech. Ind. Phot. 1921, 1, 53. 45. U.S.P. 1,300,887, 1919. 46. Photo-Rev. 1920, 32, 11, 49. I. Kitsee, U.S.P. 1,070,699 proposed to use incandescent lamps, with colored bulbs, and alternately light these. 47. F.P. 470,244, 1913. Cf. F.P. 467,609; 435,745. C. A. Coppier, F.P. 527,145; addit. 24,045; 24,985, proposed to take objects in front of a black or white background, enlarge and paint the prints and then reduce down again to normal size. 48. Phot. Chron. 1904, 11, 571. 49. E.P. 154,150, 1920; Brit. I. Phot. 1921, 68, Col. Phot. Supp. 14, 10; D.R.P. 352,649. Cf. T. H. Blair, U.S.P. 1,186,612, 1916. 50. F.P. 513,885, 1920. 51. F.P. 561,711; Sci. Ind. Phot. 1924, 4, 83. 52. E.P. 202,271, 1922; Brit. J. Phot. 1924, 71, 344. 53. F.P. 569,954, 1922; E.P. 200,292; abst. Sci. Ind. Phot. 1924, 4, 153, 185. In D.R.P. 371,323, 1919 May patented an adjustable stand for the projector shutter. 54. Phot. J. 1924, 64, 397. C. Paraloni and G. Perron, F.P. 569,407; E.P. 219,957; abst. Sci. Ind. Phot. 1924, 4, 184, patented the use of negatives of half the usual height, thus saving film. The positives were to be projected through a rotary sector shutter or with a two-color filter in the lens and prisms. Cf. Brit. J. Phot. 1921, 68, Col. Phot. Supp. 15, 4. L. Brown, U.S.P. 1,514,501, 1924, in this the images might be staggered. 55. Der Phot. 1923. 33, 93. 56. E.P. 212,875; F.P. 571,003, 1923; abst. C. A. 1924, 18, 2294; Sci. Ind. Phot. 1924, 4, 198. 57. F.P. 537,445; E.P. 171,975. 58. F.P. 552,781. 59. D.R.P. 371,117; addit. to 328,192. W. F. Fox, U.S.P. 1,166,120 also patented a projector for persistence of vision, which could be used for black and white. Cf. W. C. Vinten, E.P. 546, 1914. For notes on Miethe's projector see: Brit. J. Phot. 1902, 49, 281, 581; 1903, 50, 102, 121, 828; Photo-Era, 1903, 10, 138; Phot. Chron. 1903, 10, 442, 445; 1904, 11, 571; 1905, 12, 9; Phot. Korr. 1904, 41, 286; 1905, 42, 21; Zeits. wiss. Phot. 1905, 3, 40. 60. E.P. 6,202, 1899; abst. Brit. J. Phot. 1907, 54, Col. Phot. Supp. 1, 48; U.S.P. 645,477, 1900. Cf. C. Forch, "Der Kinematograph," 1913, 129. Hopwood and Foster, "Living Pictures," 1915, 262. 61. E.P. 3,729, 1903; Brit. J. Phot. 1907, 54, Col. Phot. Supp. 1, 88; F.P. 342,445. 62. E.P. 7,179, 1904; Brit. J. Phot. 1905, 52, 254. No patent granted on this application. D.R.P. 162,049, 1903; Silbermann, 2, 338. 63. E.P. 27,419, 1904. 64. E.P. 322, 1905; Brit. J. Phot. 1905, 52, 1012. 65. E.P. 9,465, 1905; Brit. J. Phot. 1905, 52, 213. 66. F.P. 369,092; addit. 7,480. 1907, this last deals with a positive from a successively taken negative projected through three lenses vertically juxtaposed, in conjunction with a rotating sector shutter, on to a positive from a negative taken without filters, this latter being run synchronously. 67. E.P. 3,766, 1906; Brit. J. Phot. 1907, 54, 294; D.R.P. 198,196; Phot. Chron. 1908, 15, 590; Jahrbuch, 1909, 23, 235; U.S.P. 944,787. The same device was suggested in Brit. J. Phot. 1909, 56, Col. Phot. Supp. 3, 72; Jahrbuch, 1910, 24, 340. 68. E.P. 25,908, 1906; Brit. J. Phot. 1907, 54, 582. 69. E.P. 15,726, 1907; Brit. J. Phot. 1908, 55, 590. In E.P. 2,538, 1913; Brit. J. Phot. 1914, 60, 32; Jahrbuch, 1914, 28, 521, three lenses vertically juxtaposed were used. Cf. F. Fissi, Penrose's Annual, 1912, 18, 235. 70. E.P. 1,717, 1910; Brit. J. Phot. 1911, 58, 145; F.P. 411,557; addit. 13,521; D.R.P. 231,526; 242,101. The concave lens is claimed in the additional F.P. and in E.P. 25,869, 1910; Brit. J. Phot. 1911, 58, 920; D.R.P. 237,423; 234,775; Phot. Ind. 1911, 28, 2122; Jahrbuch, 1911, 25, 326; 1912, 26, 242. 71. U.S.P. 1,130,702, 1915. 72. D.R.P. 276,870, 1913.