FR681430A - Improvement in processes and apparatus for photographic reproduction of images - Google Patents

Improvement in processes and apparatus for photographic reproduction of images

Info

Publication number
FR681430A
FR681430A FR681430DA FR681430A FR 681430 A FR681430 A FR 681430A FR 681430D A FR681430D A FR 681430DA FR 681430 A FR681430 A FR 681430A
Authority
FR
France
Prior art keywords
images
improvement
processes
photographic reproduction
photographic
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
Other languages
French (fr)
Inventor
Howard Dwight Beach
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 filed Critical
Application granted granted Critical
Publication of FR681430A publication Critical patent/FR681430A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR681430D 1929-03-05 1929-09-06 Improvement in processes and apparatus for photographic reproduction of images Expired FR681430A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US681430XA 1929-03-05 1929-03-05

Publications (1)

Publication Number Publication Date
FR681430A true FR681430A (en) 1930-05-14

Family

ID=22080671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681430D Expired FR681430A (en) 1929-03-05 1929-09-06 Improvement in processes and apparatus for photographic reproduction of images

Country Status (1)

Country Link
FR (1) FR681430A (en)

Similar Documents

Publication Publication Date Title
FR734803A (en) Improvements to supports and coatings for photographic films
FR681430A (en) Improvement in processes and apparatus for photographic reproduction of images
FR730229A (en) Anti-halo layer or screen layer for photographic plates and film
FR665197A (en) Improvements in methods and apparatus for taking or showing cinematographic images
FR746448A (en) Apparatus for the reproduction of images and sounds
FR697569A (en) Improvements to photographic films for the reproduction of images and sounds
FR697340A (en) Improvement in photographic films for recording images and sounds
FR706772A (en) Method and apparatus for recording and projecting similar images
FR719351A (en) Improvements in methods and devices for obtaining narrow cinematographic films or of reduced dimensions
FR706945A (en) Sound film and method for recording and printing sound films
FR701042A (en) Improvements made or relating to cinematographic projectors and sound-reproducing apparatus for combined cinematographic and sound films
FR604131A (en) Improvements in processes and apparatus for color photography and cinematography
FR645010A (en) Methods and apparatus for retaining talking cinematograph film
FR735999A (en) Method and apparatus for comparing photographic recordings
FR730052A (en) Improvements to the inversion process of photographic images
FR37082E (en) Method and apparatus for obtaining talking cinematograph films
FR684335A (en) Improvements in processes for obtaining and reproducing sound films
FR839171A (en) Photographic enlargement and reproduction apparatus
FR839172A (en) Photographic enlargement and reproduction apparatus
FR718706A (en) Improvements in methods and apparatus for drawing tubes
FR726734A (en) Improvements in methods and apparatus for photographic recording of sound waves
FR561806A (en) Improvements in methods and apparatus for processing motion pictures
FR647779A (en) Method and apparatus for projecting cinematographic images
FR716055A (en) Improvements to shutters of devices for taking or projecting photographic images and more especially cinematographic images
FR658668A (en) Film for synchronized reproduction of cinematographic sounds and images