GB145478A - Improvements in and relating to colour cinematography - Google Patents

Improvements in and relating to colour cinematography

Info

Publication number
GB145478A
GB145478A GB16734/20A GB1673420A GB145478A GB 145478 A GB145478 A GB 145478A GB 16734/20 A GB16734/20 A GB 16734/20A GB 1673420 A GB1673420 A GB 1673420A GB 145478 A GB145478 A GB 145478A
Authority
GB
United Kingdom
Prior art keywords
films
colour
images
objective
fed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB16734/20A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB145478A publication Critical patent/GB145478A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B33/00Colour photography, other than mere exposure or projection of a colour film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

145,478. Parolini, C., and Ferron, G. March 31, 1919, [Convention date]. Kinematograph apparatus. - A camera, which differs from an ordinary kinematograph camera in that it has a speed-multiplying gear and colour screens, is turned on its side, when in use, to produce negative films, Figs. 1 and 2, having pairs of colour records A A', B B' &c. and from such films positive films, Fig. 6, having reduced pairs of images A A<1> &c. in the space normally occupied by a monochrome image, are printed by projection in an apparatus in which the films are fed in perpendicular directions; a divided objective for use in projecting the positive films is also described. A camera for producing films as shown in Fig. 1 has gearing such that the film is fed at twice the normal rate, and a transparent rotating disk, coloured, green over one half and orange over the other half, constitutes the colour screens. For films as in Fig. 2, the gearing trebles the normal rate of feed, and the rotating disk has three equal sectors, one green, another orange, and the third opaque, thus producing a blank or " null image " A<0> between each pair of colour records. The printing-apparatus may, as shown in Fig. 3, comprise toothed drums for feeding the films 1, 2. The drums are driven by Maltese cross mechanisms geared together, and have diameters such that the positive film 2 is fed intermittently one picture space, and the negative film 1 is simultaneously fed two or three picture spaces according to the kind of negative film in use. The exposure aperture for the negative film is equal in area to two of the images thereon. Fig. 7 shows a projector objective comprising lenses 25, 26 which are cut so that the separation of their optical centres may be reduced to the distance between the centres of the images A A<1>, &c. of each pair. The lenses, which may have slightly convergent axes, are carried by plates hinged together, the plates being relatively adjustable by a micrometer screw 29 to enable the images A A' to be registered on the screen. Colour screens are provided in the objective, so that, by substitution of this objective for the usual one, an ordinary projector may be used to project the positive films.
GB16734/20A 1919-03-31 1920-06-21 Improvements in and relating to colour cinematography Expired GB145478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR145478X 1919-03-31

Publications (1)

Publication Number Publication Date
GB145478A true GB145478A (en) 1921-12-21

Family

ID=8875099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16734/20A Expired GB145478A (en) 1919-03-31 1920-06-21 Improvements in and relating to colour cinematography

Country Status (1)

Country Link
GB (1) GB145478A (en)

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