GB861119A - Improvements in or relating to projection screens - Google Patents

Improvements in or relating to projection screens

Info

Publication number
GB861119A
GB861119A GB2654856A GB2654856A GB861119A GB 861119 A GB861119 A GB 861119A GB 2654856 A GB2654856 A GB 2654856A GB 2654856 A GB2654856 A GB 2654856A GB 861119 A GB861119 A GB 861119A
Authority
GB
United Kingdom
Prior art keywords
sheet
projection
tape
adhesive
hardboard
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
GB2654856A
Inventor
Denis Victor Ridgeway
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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 Pye Ltd filed Critical Pye Ltd
Priority to GB2654856A priority Critical patent/GB861119A/en
Publication of GB861119A publication Critical patent/GB861119A/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
    • G03B21/602—Lenticular screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

861,119. Projection screens. PYE Ltd. Aug. 30, 1957 [Aug. 30, 1956], No. 26548/56. Class 97(1) A projection screen, particularly for use in the projection of colour television pictures, comprises a supporting surface to which is applied a self-adhesive pressure-sensitive tape so that the surface of the tape is smooth on application, a sheet of reflecting material being applied to the tacky surface of the tape. As shown, the support for the projection surface is a sheet of hardboard 12 mounted on a framework consisting of horizontal bars 9 and concave strips 8 and having a strip 10 providing a groove for securing the lower edge of the hardboard sheet 12 which is pressed into close contact with the frame by means of clamps. The sheet 12 is then screwed to the framework and the clamps removed. Sheets 2 of pressure sensitive self adhesive tape are then applied to the surface of the hardboard 12 by means of a roller and such that their edges do not overlap, the adhesive protecting sheet is removed, and the reflecting material such as polyvinyl chloride is applied uniformly by means of a roller to the tacky adhesive surface to form a projection layer 3, having lenticulations or corrugations 15.
GB2654856A 1956-08-30 1956-08-30 Improvements in or relating to projection screens Expired GB861119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2654856A GB861119A (en) 1956-08-30 1956-08-30 Improvements in or relating to projection screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2654856A GB861119A (en) 1956-08-30 1956-08-30 Improvements in or relating to projection screens

Publications (1)

Publication Number Publication Date
GB861119A true GB861119A (en) 1961-02-15

Family

ID=10245373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2654856A Expired GB861119A (en) 1956-08-30 1956-08-30 Improvements in or relating to projection screens

Country Status (1)

Country Link
GB (1) GB861119A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348897A (en) * 1964-04-03 1967-10-24 Hourdiaux Jules Curved screens for projecting motion picture films or the like
DE4421745A1 (en) * 1994-06-22 1996-01-11 P & I Gmbh Projection screen with flexible support with reflective surface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348897A (en) * 1964-04-03 1967-10-24 Hourdiaux Jules Curved screens for projecting motion picture films or the like
DE4421745A1 (en) * 1994-06-22 1996-01-11 P & I Gmbh Projection screen with flexible support with reflective surface
DE19516190C1 (en) * 1994-06-22 1996-07-25 P & I Gmbh Projection wall for reflecting projected images

Similar Documents

Publication Publication Date Title
US2268529A (en) Picture mounting means
GB1167674A (en) X-Ray Film Cassette
GB1295378A (en)
GB861119A (en) Improvements in or relating to projection screens
GB1376444A (en) Film supporting frames
GB944994A (en) Improvements in or relating to framed panel structures
ES444639A1 (en) Membrane seal for electrolysis plate and frame assemblies
US3252236A (en) Display panel and framing mount therefor
GB1421984A (en) Apparatus for securing a covering sheet to a carrier surface
GB932868A (en) Aperture record card system
GB1034849A (en) Improvements in picture mounting and the like
GB1205043A (en) Adhesive signs
GB1381478A (en) Light-transmittable panels
GB864029A (en) Mounts for pictures or the like
GB1293797A (en) Pressure-sensitive adhesive tape
FR2400607A1 (en) Double glazing for existing windows - has cover frame which clips onto glue fixed base frame to secure second pane
GB1469910A (en) Device for the fold-free stretching and holding of liquid crystal films
GB918886A (en) Improvements in or relating to mountings for diapositive film pictures
GB1078331A (en) Improvements in suspended translucent ceilings
GB849485A (en) Improvements relating to viewing slides
FR2310812A1 (en) Window cleaning aid with heated block - has absorbent strip held against heater plate by device bearing against supporting frame
FR2273730A1 (en) Display wallet for stamps has cardboard substrate with paper backing - for stamps and plastic covering film
GB1327045A (en) Postage stamp mounts
GB894926A (en) Improvements in and relating to window screens
FR2435234A3 (en) Display stand for wall coverings - consists of backing panel display sheet mounting wallpaper with superposed transparent sheet carrying drawings of e.g. bathroom furniture