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JPS5573040A - Projection screen - Google Patents

Projection screen

Info

Publication number
JPS5573040A
JPS5573040A JP14604478A JP14604478A JPS5573040A JP S5573040 A JPS5573040 A JP S5573040A JP 14604478 A JP14604478 A JP 14604478A JP 14604478 A JP14604478 A JP 14604478A JP S5573040 A JPS5573040 A JP S5573040A
Authority
JP
Japan
Prior art keywords
patterns
undulation
horizontal
projection screen
undulation patterns
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
JP14604478A
Other languages
Japanese (ja)
Inventor
Hideya Aoki
Yasuo Kobune
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP14604478A priority Critical patent/JPS5573040A/en
Publication of JPS5573040A publication Critical patent/JPS5573040A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE: To obtain the projection screen which is wide in a light diffusion range in both horizontal and vertical directions and is bright by forming minute and dense undulation patterns with crossing in the horizontal and vertical directions on the surface of the metal aluminum layer provided on a substrate.
CONSTITUTION: A metal aluminum layer is provided on a substrate surface. The undulation patterns of about 0.2SW25S in surface roughness (JIS B0601) having directivity in the horizontal direction and the undulation patterns of about 0.01SW 10S in surface roughness having directivity in the vertical direction are formed on the aluminum layer to provide the projection screen. It is desirable that the abovementioned horizontal undulation patterns be formed by rolling and the vertical undulation patterns be formed by mechanical surface treatment (polishing, brushing, etc.). The effect will be higher if many more crater-form patterns are given by etching or the like in addition to the abovementioned undulation patterns.
COPYRIGHT: (C)1980,JPO&Japio
JP14604478A 1978-11-28 1978-11-28 Projection screen Pending JPS5573040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14604478A JPS5573040A (en) 1978-11-28 1978-11-28 Projection screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14604478A JPS5573040A (en) 1978-11-28 1978-11-28 Projection screen

Publications (1)

Publication Number Publication Date
JPS5573040A true JPS5573040A (en) 1980-06-02

Family

ID=15398826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14604478A Pending JPS5573040A (en) 1978-11-28 1978-11-28 Projection screen

Country Status (1)

Country Link
JP (1) JPS5573040A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0862726A (en) * 1994-08-18 1996-03-08 Shii Ron Yuu Screen for projector
WO2004107038A1 (en) * 2003-05-31 2004-12-09 Choi Hae-Yong Surface reflection type metallic screen and method of manufacturing the same
US6898012B2 (en) * 2002-05-16 2005-05-24 Eastman Kodak Company Light reflector with variable diffuse light reflection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5314221A (en) * 1976-07-26 1978-02-08 Toyota Motor Corp Method of and apparatus for controlling exhaust gas purifying means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5314221A (en) * 1976-07-26 1978-02-08 Toyota Motor Corp Method of and apparatus for controlling exhaust gas purifying means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0862726A (en) * 1994-08-18 1996-03-08 Shii Ron Yuu Screen for projector
US6898012B2 (en) * 2002-05-16 2005-05-24 Eastman Kodak Company Light reflector with variable diffuse light reflection
WO2004107038A1 (en) * 2003-05-31 2004-12-09 Choi Hae-Yong Surface reflection type metallic screen and method of manufacturing the same
GB2416044A (en) * 2003-05-31 2006-01-11 Hae-Yong Choi Surface reflection type metallic screen and method of manufacturing the same
GB2416044B (en) * 2003-05-31 2006-07-05 Hae-Yong Choi Surface reflection type metallic screen and method of manufacturing the same
US7362502B2 (en) 2003-05-31 2008-04-22 Hae-Yong Choi Surface reflection type metallic screen and method of manufacturing the same
CN100476574C (en) 2003-05-31 2009-04-08 崔海龙 Surface reflective metal screen and manufacturing method thereof

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