GB1093639A - Improvements in or relating to curved projection screens - Google Patents

Improvements in or relating to curved projection screens

Info

Publication number
GB1093639A
GB1093639A GB26892/65A GB2689265A GB1093639A GB 1093639 A GB1093639 A GB 1093639A GB 26892/65 A GB26892/65 A GB 26892/65A GB 2689265 A GB2689265 A GB 2689265A GB 1093639 A GB1093639 A GB 1093639A
Authority
GB
United Kingdom
Prior art keywords
strips
projection screens
curved projection
relating
june
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
GB26892/65A
Other languages
English (en)
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
Publication of GB1093639A publication Critical patent/GB1093639A/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
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Clamps And Clips (AREA)
GB26892/65A 1964-06-30 1965-06-24 Improvements in or relating to curved projection screens Expired GB1093639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR980225A FR87109E (fr) 1964-06-30 1964-06-30 Procédé de fabrication d'un écran courbe et écran ainsi obtenu

Publications (1)

Publication Number Publication Date
GB1093639A true GB1093639A (en) 1967-12-06

Family

ID=8833607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26892/65A Expired GB1093639A (en) 1964-06-30 1965-06-24 Improvements in or relating to curved projection screens

Country Status (11)

Country Link
US (1) US3384432A (fr)
AT (1) AT275909B (fr)
BE (1) BE666010A (fr)
CH (1) CH449998A (fr)
DE (1) DE1264099B (fr)
ES (1) ES314742A2 (fr)
FR (1) FR87109E (fr)
GB (1) GB1093639A (fr)
LU (1) LU48923A1 (fr)
NL (1) NL6508315A (fr)
OA (1) OA085E (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318589A (en) * 1980-07-07 1982-03-09 The Singer Company Segmented curved screen construction for preserving a predefined curvature
US5098616A (en) * 1990-11-19 1992-03-24 Cae Electronics Ltd. Method for forming a curved projection screen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1882829A (en) * 1930-10-29 1932-10-18 Bell Telephone Labor Inc Relief picture viewing screen
US2476521A (en) * 1947-09-22 1949-07-19 Vitarama Corp Screen for picture projections
FR1283342A (fr) * 1960-12-22 1962-02-02 Perfectionnements apportés aux écrans de projection, notamment pour le cinéma

Also Published As

Publication number Publication date
US3384432A (en) 1968-05-21
NL6508315A (fr) 1965-12-31
DE1264099B (de) 1968-03-21
AT275909B (de) 1969-11-10
CH449998A (fr) 1968-01-15
LU48923A1 (fr) 1965-08-26
FR87109E (fr) 1966-06-17
ES314742A2 (es) 1966-05-16
BE666010A (fr) 1965-10-18
OA085E (fr) 1970-12-15

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