GB656651A - Improvements in rear projection viewing screen - Google Patents

Improvements in rear projection viewing screen

Info

Publication number
GB656651A
GB656651A GB10122/48A GB1012248A GB656651A GB 656651 A GB656651 A GB 656651A GB 10122/48 A GB10122/48 A GB 10122/48A GB 1012248 A GB1012248 A GB 1012248A GB 656651 A GB656651 A GB 656651A
Authority
GB
United Kingdom
Prior art keywords
rear projection
viewing screen
projection viewing
dilaurate
dibutyl
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
GB10122/48A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB656651A publication Critical patent/GB656651A/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
    • G03B21/625—Lenticular translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A polyvinyl chloride resin used in forming an optical projection screen contains di-octyl phthalate as plasticizer and also small quantities of dibutyl-10-dilaurate phenol salicylate and stearic acid. A light-diffusing material is also added and is a naturally-occurring form of silica, finely ground, which contains as impurities the oxides of iron, aluminium, calcium and magnesium.
GB10122/48A 1947-05-13 1948-04-12 Improvements in rear projection viewing screen Expired GB656651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US656651XA 1947-05-13 1947-05-13

Publications (1)

Publication Number Publication Date
GB656651A true GB656651A (en) 1951-08-29

Family

ID=22064285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10122/48A Expired GB656651A (en) 1947-05-13 1948-04-12 Improvements in rear projection viewing screen

Country Status (1)

Country Link
GB (1) GB656651A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934997A (en) * 1956-04-05 1960-05-03 Andrew Smith Harkness Ltd Cinematograph screen having improved properties
DE2604042A1 (en) * 1975-02-03 1976-08-05 Fuji Photo Film Co Ltd REAR PROJECTION SCREEN
EP0063317A1 (en) * 1981-04-07 1982-10-27 Mitsubishi Rayon Co., Ltd. Rear projection screen
EP0067430A1 (en) * 1981-06-15 1982-12-22 Mitsubishi Rayon Co., Ltd. Rear projection screen
WO2014018705A1 (en) * 2012-07-27 2014-01-30 Nb Tech Inc. Visual display system and method of constructing a high-gain reflective beam-splitter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934997A (en) * 1956-04-05 1960-05-03 Andrew Smith Harkness Ltd Cinematograph screen having improved properties
DE2604042A1 (en) * 1975-02-03 1976-08-05 Fuji Photo Film Co Ltd REAR PROJECTION SCREEN
EP0063317A1 (en) * 1981-04-07 1982-10-27 Mitsubishi Rayon Co., Ltd. Rear projection screen
EP0166262A1 (en) * 1981-04-07 1986-01-02 Mitsubishi Rayon Co., Ltd. Rear projection screen
EP0067430A1 (en) * 1981-06-15 1982-12-22 Mitsubishi Rayon Co., Ltd. Rear projection screen
US4469402A (en) * 1981-06-15 1984-09-04 Mitsubishi Rayon Co., Ltd. Rear projection screen
EP0163766A1 (en) * 1981-06-15 1985-12-11 Mitsubishi Rayon Co., Ltd. Rear projection screen
WO2014018705A1 (en) * 2012-07-27 2014-01-30 Nb Tech Inc. Visual display system and method of constructing a high-gain reflective beam-splitter
US9211481B2 (en) 2012-07-27 2015-12-15 Nb Tech Inc. Visual display system and method of constructing a high-gain reflective beam-splitter

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