SE9600446L - Film screen device and method for bringing a film screen into a position suitable for displaying images - Google Patents

Film screen device and method for bringing a film screen into a position suitable for displaying images

Info

Publication number
SE9600446L
SE9600446L SE9600446A SE9600446A SE9600446L SE 9600446 L SE9600446 L SE 9600446L SE 9600446 A SE9600446 A SE 9600446A SE 9600446 A SE9600446 A SE 9600446A SE 9600446 L SE9600446 L SE 9600446L
Authority
SE
Sweden
Prior art keywords
film screen
component
shaft
bringing
displaying images
Prior art date
Application number
SE9600446A
Other languages
Swedish (sv)
Other versions
SE9600446D0 (en
SE506048C2 (en
Inventor
Mats Erlandson
Original Assignee
Avi I Stockholm Ab
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 Avi I Stockholm Ab filed Critical Avi I Stockholm Ab
Priority to SE9600446A priority Critical patent/SE506048C2/en
Publication of SE9600446D0 publication Critical patent/SE9600446D0/en
Publication of SE9600446L publication Critical patent/SE9600446L/en
Publication of SE506048C2 publication Critical patent/SE506048C2/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

The method involves rolling a film sheet (20) in the rest position on the first shaft (22) in the upper part of an inner frame. A second shaft (28) is arranged in the lower part of the inner frame and extends outwards into an outer frame (12). Arranged on the shafts are engagement components (26) which are connected by a transmission component (36) transmitting rotation between the shafts. An elevation component (30) comprises a rolling-up component (30') and a band (30") fixed to the outer frame and the rolling-up component. On the second shaft is a tension component (32), fixed partly in the inner frame (B) and partly in the second shaft (A).
SE9600446A 1996-02-07 1996-02-07 Method for bringing film sheet arrangement into position for viewing pictures SE506048C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9600446A SE506048C2 (en) 1996-02-07 1996-02-07 Method for bringing film sheet arrangement into position for viewing pictures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9600446A SE506048C2 (en) 1996-02-07 1996-02-07 Method for bringing film sheet arrangement into position for viewing pictures

Publications (3)

Publication Number Publication Date
SE9600446D0 SE9600446D0 (en) 1996-02-07
SE9600446L true SE9600446L (en) 1997-08-08
SE506048C2 SE506048C2 (en) 1997-11-03

Family

ID=20401301

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9600446A SE506048C2 (en) 1996-02-07 1996-02-07 Method for bringing film sheet arrangement into position for viewing pictures

Country Status (1)

Country Link
SE (1) SE506048C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021029762A1 (en) * 2019-08-14 2021-02-18 엘지전자 주식회사 Smart wall

Also Published As

Publication number Publication date
SE9600446D0 (en) 1996-02-07
SE506048C2 (en) 1997-11-03

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