JPS5545054A - Projector utilizing vinyl sheet air chamber wall - Google Patents

Projector utilizing vinyl sheet air chamber wall

Info

Publication number
JPS5545054A
JPS5545054A JP11857078A JP11857078A JPS5545054A JP S5545054 A JPS5545054 A JP S5545054A JP 11857078 A JP11857078 A JP 11857078A JP 11857078 A JP11857078 A JP 11857078A JP S5545054 A JPS5545054 A JP S5545054A
Authority
JP
Japan
Prior art keywords
air chamber
ground
sheets
projector
chamber wall
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.)
Pending
Application number
JP11857078A
Other languages
Japanese (ja)
Inventor
Kunihiko Murai
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
Priority to JP11857078A priority Critical patent/JPS5545054A/en
Publication of JPS5545054A publication Critical patent/JPS5545054A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE: To obtain the projector which does not use any iron frames by pitching vinyl sheets in semispherical form on the ground to form an air chamber and using the inside wall thereof as a projecting screen.
CONSTITUTION: Netting 2 is spread on the transparent sheets 1 pitched on the ground 12 to reinforce the vinyl sheets 1. The sheets 1 and netting 2 are bound by cords 3 via stanchions 5. The end edge parts of the vinyl sheets 1 bent to the inner side are held by weight members 4. A projector P is provided in a suitable place in the air chamber 6 formed by sending compressed air between the vinyl sheets 1 secured at the circumference onto the ground 2 and the ground 12 and projection images are formed in the suitable place of the inside wall of the air chamber 6 as a projecting film. Hence, the huge projecting screen may be assembled readily when and where desired without using any iron frames.
COPYRIGHT: (C)1980,JPO&Japio
JP11857078A 1978-09-28 1978-09-28 Projector utilizing vinyl sheet air chamber wall Pending JPS5545054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11857078A JPS5545054A (en) 1978-09-28 1978-09-28 Projector utilizing vinyl sheet air chamber wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11857078A JPS5545054A (en) 1978-09-28 1978-09-28 Projector utilizing vinyl sheet air chamber wall

Publications (1)

Publication Number Publication Date
JPS5545054A true JPS5545054A (en) 1980-03-29

Family

ID=14739862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11857078A Pending JPS5545054A (en) 1978-09-28 1978-09-28 Projector utilizing vinyl sheet air chamber wall

Country Status (1)

Country Link
JP (1) JPS5545054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015020235A1 (en) * 2013-08-09 2015-02-12 Tsukii Takeshi Dome structure using air film and framework for same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015020235A1 (en) * 2013-08-09 2015-02-12 Tsukii Takeshi Dome structure using air film and framework for same

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