GB117053A - Improvements in Screens for Cinematograph Pictures and the like. - Google Patents

Improvements in Screens for Cinematograph Pictures and the like.

Info

Publication number
GB117053A
GB117053A GB451818A GB451818A GB117053A GB 117053 A GB117053 A GB 117053A GB 451818 A GB451818 A GB 451818A GB 451818 A GB451818 A GB 451818A GB 117053 A GB117053 A GB 117053A
Authority
GB
United Kingdom
Prior art keywords
screens
pictures
screen
cinematograph
cinematograph pictures
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
GB451818A
Inventor
Frank Heale
George Wallace Bryant
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
Priority to GB451818A priority Critical patent/GB117053A/en
Publication of GB117053A publication Critical patent/GB117053A/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
    • G03B21/606—Projection screens characterised by the nature of the surface for relief projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

117,053. Heale, F., and Bryant, G. W. March 14, 1918. Optical - projection apparatus. - A screen for kinematograph pictures &c. said to give a stereoscopic effect consists of a plaster or fabric screen silvered on the face and arrayed behind two separate veiling screens of fine mesh netting or the like silvened on the front and blackened at the back, all three screens being spaced apart.
GB451818A 1918-03-14 1918-03-14 Improvements in Screens for Cinematograph Pictures and the like. Expired GB117053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB451818A GB117053A (en) 1918-03-14 1918-03-14 Improvements in Screens for Cinematograph Pictures and the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB451818A GB117053A (en) 1918-03-14 1918-03-14 Improvements in Screens for Cinematograph Pictures and the like.

Publications (1)

Publication Number Publication Date
GB117053A true GB117053A (en) 1918-07-04

Family

ID=32670189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB451818A Expired GB117053A (en) 1918-03-14 1918-03-14 Improvements in Screens for Cinematograph Pictures and the like.

Country Status (1)

Country Link
GB (1) GB117053A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678394A (en) * 1969-03-24 1972-07-18 Siemens Ag Superheterodyne receiver with automatic tuning to a reception frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678394A (en) * 1969-03-24 1972-07-18 Siemens Ag Superheterodyne receiver with automatic tuning to a reception frequency

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