JPS5545025A - Projecting screen - Google Patents

Projecting screen

Info

Publication number
JPS5545025A
JPS5545025A JP11789678A JP11789678A JPS5545025A JP S5545025 A JPS5545025 A JP S5545025A JP 11789678 A JP11789678 A JP 11789678A JP 11789678 A JP11789678 A JP 11789678A JP S5545025 A JPS5545025 A JP S5545025A
Authority
JP
Japan
Prior art keywords
reflectance
cells
net
bodies
projecting
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
JP11789678A
Other languages
Japanese (ja)
Inventor
Kanji Watanabe
Tatsuya Nishimoto
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP11789678A priority Critical patent/JPS5545025A/en
Publication of JPS5545025A publication Critical patent/JPS5545025A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE:To make deposition of dust, etc. on the projecting screen difficult, enhance reflectance and improve mechanical strength as well by burying the three- dimensional irregular net-form bodies comprising having open cells and being filled with transparent materials in the cells in the projecting surface. CONSTITUTION:The porous bodies 1 of the three-dimensional irregular net-form structure of resins or metals having open cells 2 are buried in the projecting surface. Transparent resin or glass powder is coated in these cells 2 to enhance the reflectance of the surface. Some blue coloring is applied to these coating transparent bodies, whereby the tones close to natural ones may be reproduced in the case of color photography. Selection of the shapes and cell diameters of the net-form structure makes possible controlling of the reflectance, luminance and irregular reflectance of the screen surface.
JP11789678A 1978-09-27 1978-09-27 Projecting screen Pending JPS5545025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11789678A JPS5545025A (en) 1978-09-27 1978-09-27 Projecting screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11789678A JPS5545025A (en) 1978-09-27 1978-09-27 Projecting screen

Publications (1)

Publication Number Publication Date
JPS5545025A true JPS5545025A (en) 1980-03-29

Family

ID=14722884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11789678A Pending JPS5545025A (en) 1978-09-27 1978-09-27 Projecting screen

Country Status (1)

Country Link
JP (1) JPS5545025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105530A (en) * 1984-10-29 1986-05-23 Taisei Corp Video screen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990533A (en) * 1972-12-28 1974-08-29
JPS52113732A (en) * 1976-03-19 1977-09-24 Copal Co Ltd Projection screen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990533A (en) * 1972-12-28 1974-08-29
JPS52113732A (en) * 1976-03-19 1977-09-24 Copal Co Ltd Projection screen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105530A (en) * 1984-10-29 1986-05-23 Taisei Corp Video screen
JPH0449695B2 (en) * 1984-10-29 1992-08-12 Taisei Corp

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