GB154459A - Improvements in and relating to cinematograph screens - Google Patents

Improvements in and relating to cinematograph screens

Info

Publication number
GB154459A
GB154459A GB3115919A GB3115919A GB154459A GB 154459 A GB154459 A GB 154459A GB 3115919 A GB3115919 A GB 3115919A GB 3115919 A GB3115919 A GB 3115919A GB 154459 A GB154459 A GB 154459A
Authority
GB
United Kingdom
Prior art keywords
network
screens
nodules
optical
consist
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
GB3115919A
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.)
WILLIAM JAMES MARKS
Original Assignee
WILLIAM JAMES MARKS
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 WILLIAM JAMES MARKS filed Critical WILLIAM JAMES MARKS
Priority to GB3115919A priority Critical patent/GB154459A/en
Publication of GB154459A publication Critical patent/GB154459A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

154,459. Marks, W. J. Dec. 12, 1919. No Patent granted (Sealing fee not paid). Optical-projection apparatus.-Screens for use with optical-projection apparatus consist of a network of opaque or semi-opaoue fibrous material coated with a translucent material formed to present to the spectators nodules which are each framed within an aperture of the network. The network may have apertures of uniform size and shape, for example, rhomboidal, hexagonal, or triangular, and may be so manufactured that the predominating strength exists diagonally. The network may be dyed violet and may consist of butter cloth. The translucent material may be wax or celluloid, and the nodules may be pyramidal conoidal or paraboloidal in form.
GB3115919A 1919-12-12 1919-12-12 Improvements in and relating to cinematograph screens Expired GB154459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3115919A GB154459A (en) 1919-12-12 1919-12-12 Improvements in and relating to cinematograph screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3115919A GB154459A (en) 1919-12-12 1919-12-12 Improvements in and relating to cinematograph screens

Publications (1)

Publication Number Publication Date
GB154459A true GB154459A (en) 1920-12-02

Family

ID=10318896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3115919A Expired GB154459A (en) 1919-12-12 1919-12-12 Improvements in and relating to cinematograph screens

Country Status (1)

Country Link
GB (1) GB154459A (en)

Similar Documents

Publication Publication Date Title
US1854864A (en) Metal film or lamina for use in cinematography
GB154459A (en) Improvements in and relating to cinematograph screens
CH223972A (en) Process for the production of photographic material, in particular for colored images, and photographic material produced by this process.
CH232633A (en) Process for the production of photographic material, in particular for color photographic and cinematographic images, and photographic material produced by this process.
DE431813C (en) Lighting device for photographic playback cameras
CH213625A (en) Process for the production of photographic material, in particular for color photography.
CH210620A (en) Photographic optically sensitized material provided with at least one halogen silver emulsion layer and process for the preparation thereof.
DE677684C (en) Blueprint material
US2202370A (en) Manufacture of translucent screens
FR675628A (en) Improvements in processes and apparatus for the mechanical drawing of very fine threads, in particular artificial silk threads
GB207836A (en) Improvements in photographic or cinematographic films provided with lenticular elements for natural colour photography purposes
GB158670A (en) Improvements in multi-colour screens for natural colour cinematography and photography and in the manufacture thereof
DE640157C (en) Light sensitive photographic material for use in ultraviolet light
USRE20438E (en) Article of manufacture and process
GB508011A (en) Manufacture of light filter layers
GB435105A (en) Improvements in or connected with sun screens, goggles or the like
US1455982A (en) Projection picture screen and process of making same
AT144490B (en) Process for the production of supports which are suitable for the mechanical recording of an optically reproducible vibration track, and supports which are produced by this process.
DE483807C (en) Process for recording tones and sounds on photographic film
GB429679A (en) Improvements in cinematograph projection screens
GB231427A (en) Improvements in or relating to kinematographic projection apparatus
GB396714A (en) Improvements in or relating to projection screens
GB151732A (en) Improvements in or relating to moving picture display screens
GB309037A (en) Improvements in or relating to cinematographic films
GB223701A (en) Improvements in or relating to shutters for use in connection with kinematograph projectors