JPS6488438A - Screen - Google Patents

Screen

Info

Publication number
JPS6488438A
JPS6488438A JP62245102A JP24510287A JPS6488438A JP S6488438 A JPS6488438 A JP S6488438A JP 62245102 A JP62245102 A JP 62245102A JP 24510287 A JP24510287 A JP 24510287A JP S6488438 A JPS6488438 A JP S6488438A
Authority
JP
Japan
Prior art keywords
screen
projection
recess
crest
valley
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
JP62245102A
Other languages
Japanese (ja)
Inventor
Katsuji Hattori
Kosaku Murata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62245102A priority Critical patent/JPS6488438A/en
Publication of JPS6488438A publication Critical patent/JPS6488438A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE:To uniformize the brightness of an entire screen in the range of wide angle by making the depth from a crest to a valley in a projection and recess shape of the surface of a screen shallow in the center part of the screen and making it deeper closer to both ends. CONSTITUTION:The sheet of a organic material, such as vinyl chloride, etc., or an inorganic material such as aluminum, etc., is used for the base 4 of the screen. The projection and recess shapes 5 and 6 are formed by processing the surface of the base 4 in proper pitch to become a wave shape, on whose surface the film of aluminum, etc., is formed in order to effectively reflect a light beam. And the screen is formed symmetrically in the right and the left so that the depth from the crest to the valley of the projection and recess shape 5 is made shallow in the center part of the screen and it is made deeper closer to the projection and recess shapes 6 on both ends in the horizontal direction of the screen. Thus, the brightness of the entire screen can be nearly uniformized.
JP62245102A 1987-09-29 1987-09-29 Screen Pending JPS6488438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62245102A JPS6488438A (en) 1987-09-29 1987-09-29 Screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62245102A JPS6488438A (en) 1987-09-29 1987-09-29 Screen

Publications (1)

Publication Number Publication Date
JPS6488438A true JPS6488438A (en) 1989-04-03

Family

ID=17128643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62245102A Pending JPS6488438A (en) 1987-09-29 1987-09-29 Screen

Country Status (1)

Country Link
JP (1) JPS6488438A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009186873A (en) * 2008-02-08 2009-08-20 Seiko Epson Corp Reflection screen and method for manufacturing the same
JP2010085883A (en) * 2008-10-02 2010-04-15 Seiko Epson Corp Screen and method for manufacturing screen
JP2011164391A (en) * 2010-02-10 2011-08-25 Seiko Epson Corp Reflective screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009186873A (en) * 2008-02-08 2009-08-20 Seiko Epson Corp Reflection screen and method for manufacturing the same
JP2010085883A (en) * 2008-10-02 2010-04-15 Seiko Epson Corp Screen and method for manufacturing screen
JP2011164391A (en) * 2010-02-10 2011-08-25 Seiko Epson Corp Reflective screen

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