GB732866A - Improvements relating to the production of cinematographic films - Google Patents

Improvements relating to the production of cinematographic films

Info

Publication number
GB732866A
GB732866A GB11728/53A GB1172853A GB732866A GB 732866 A GB732866 A GB 732866A GB 11728/53 A GB11728/53 A GB 11728/53A GB 1172853 A GB1172853 A GB 1172853A GB 732866 A GB732866 A GB 732866A
Authority
GB
United Kingdom
Prior art keywords
film
copy
original
april
printing
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
GB11728/53A
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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 Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Publication of GB732866A publication Critical patent/GB732866A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/46—Projection printing apparatus, e.g. enlarger, copying camera for automatic sequential copying of different originals, e.g. enlargers, roll film printers
    • G03B27/475—Projection printing apparatus, e.g. enlarger, copying camera for automatic sequential copying of different originals, e.g. enlargers, roll film printers copying cinematographic film

Landscapes

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

Abstract

732,866. Photographic projection printing. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. April 28, 1953 [April 29, 1952], No. 11728/53. Classes 98 (1) and 98 (2). A method of making a kinematograph film comprises making a copy of an original film reduced by a factor k by projection printing on a film having a resolving power at least k times greater than that of the original film. As shown, a wide (70 mm.) high-speed original film 1 which is used in X-ray kinematography is unperforated while the 35 mm. high-resolving power copy film 3 has feed perforations. At each film feed, the film 3 is fed on exactly one frame and is then arrested by a pawl 7 engaging in spaced notches 9 in a metering disc 6 fast with a film-driven sprocket 4, while the film 1 is simultaneously fed approximately one frame, the take-up spools 10, 11 being coupled. The film 1 is then located correctly in the projection gate by operation of an overriding manual control to bring an image of register marks 12 on it into registry with fiduciary mark 14 in the eyepiece of a microscope 13. The copy film may be of the direct positive type and instead of the original film a positive copy by two-stage contact printing may be used.
GB11728/53A 1952-04-29 1953-04-28 Improvements relating to the production of cinematographic films Expired GB732866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL732866X 1952-04-29

Publications (1)

Publication Number Publication Date
GB732866A true GB732866A (en) 1955-06-29

Family

ID=19820325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11728/53A Expired GB732866A (en) 1952-04-29 1953-04-28 Improvements relating to the production of cinematographic films

Country Status (1)

Country Link
GB (1) GB732866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7476493B2 (en) 2003-07-04 2009-01-13 Leonhard Kurz Gmbh & Co. Kg Exposure station for film webs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7476493B2 (en) 2003-07-04 2009-01-13 Leonhard Kurz Gmbh & Co. Kg Exposure station for film webs

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