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

Improvements in or relating to curved projection screens

Info

Publication number: GB1093639A
Authority: GB; United Kingdom
Prior art keywords: strips; projection screens; curved projection; relating; june
Prior art date: 1964-06-30
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

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.)

1964-06-30

Filing date

1965-06-24

Publication date

1967-12-06

1965-06-24 Application filed by Individual filed Critical Individual

1967-12-06 Publication of GB1093639A publication Critical patent/GB1093639A/en

Status Expired legal-status Critical Current

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)
Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Clamps And Clips (AREA)
Transforming Electric Information Into Light Information (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 (de)
AT (1)	AT275909B (de)
BE (1)	BE666010A (de)
CH (1)	CH449998A (de)
DE (1)	DE1264099B (de)
ES (1)	ES314742A2 (de)
FR (1)	FR87109E (de)
GB (1)	GB1093639A (de)
LU (1)	LU48923A1 (de)
NL (1)	NL6508315A (de)
OA (1)	OA085E (de)

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

1964
- 1964-06-30 FR FR980225A patent/FR87109E/fr not_active Expired
1965
- 1965-06-23 AT AT570365A patent/AT275909B/de active
- 1965-06-23 CH CH917265A patent/CH449998A/fr unknown
- 1965-06-24 GB GB26892/65A patent/GB1093639A/en not_active Expired
- 1965-06-26 DE DEH56416A patent/DE1264099B/de active Pending
- 1965-06-26 LU LU48923A patent/LU48923A1/xx unknown
- 1965-06-28 BE BE666010D patent/BE666010A/xx unknown
- 1965-06-28 US US467289A patent/US3384432A/en not_active Expired - Lifetime
- 1965-06-28 ES ES0314742A patent/ES314742A2/es not_active Expired
- 1965-06-29 NL NL6508315A patent/NL6508315A/xx unknown
- 1965-06-29 OA OA52089A patent/OA085E/xx unknown

Also Published As

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

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