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JPS5657030A - Recurrent screen - Google Patents

Recurrent screen

Info

Publication number
JPS5657030A
JPS5657030A JP13266579A JP13266579A JPS5657030A JP S5657030 A JPS5657030 A JP S5657030A JP 13266579 A JP13266579 A JP 13266579A JP 13266579 A JP13266579 A JP 13266579A JP S5657030 A JPS5657030 A JP S5657030A
Authority
JP
Japan
Prior art keywords
refracted
faces
recurrent
reflected
light
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
JP13266579A
Other languages
Japanese (ja)
Inventor
Gen Yanagisawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP13266579A priority Critical patent/JPS5657030A/en
Publication of JPS5657030A publication Critical patent/JPS5657030A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE: To refract the optical axis of reflected light in a predetermined direction and make possible observation of sharp videos by providing recurrent elements which nearly totally reflect incident light and refracting means refracting the light reflected by said recurrent elements in a predetermined direction.
CONSTITUTION: Reflecting faces 12 such as three faces 2sW2d are formed on one side face of a substrate 11 of a recurrent screen 10 to form recurent elements. A renticular plate 13 as refracting means is constituted integrally with the substrate 11 on the front face of the reflecting faces 12 and the surface thereof is formed to a waveform 1. Thereupon, when incident light LA is entered, it is refracted by the curved faces 13a of the renticular plate 13, and is then reflected and refracted by the reflecting faces 12, and further it is refracted like reflected light LB by the curved faces 13a. Hence, the optical axis of the reflected light LB is refracted to an angle θ1 in a predetermined direction with respect to the optical axis of the incident light LA and when there is an abserver in the reflected light LB direction, the video is sharply observed without the aid of a beam splitter etc.
COPYRIGHT: (C)1981,JPO&Japio
JP13266579A 1979-10-15 1979-10-15 Recurrent screen Pending JPS5657030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13266579A JPS5657030A (en) 1979-10-15 1979-10-15 Recurrent screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13266579A JPS5657030A (en) 1979-10-15 1979-10-15 Recurrent screen

Publications (1)

Publication Number Publication Date
JPS5657030A true JPS5657030A (en) 1981-05-19

Family

ID=15086626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13266579A Pending JPS5657030A (en) 1979-10-15 1979-10-15 Recurrent screen

Country Status (1)

Country Link
JP (1) JPS5657030A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296342A (en) * 1985-06-25 1986-12-27 Yuupu:Kk Reflex projecting screen
JPS6463901A (en) * 1987-07-27 1989-03-09 I T W New Zealand Ltd Reflection mirror apparatus
EP0742320A4 (en) * 1994-10-07 1998-11-18 Japan Invention Spread Promoti Reflective sheet
JP2019082600A (en) * 2017-10-31 2019-05-30 株式会社シマノ Reflector and small vehicle including bicycle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598470A (en) * 1969-11-05 1971-08-10 Prismalite Inc Projection screen and system
JPS4827695A (en) * 1971-08-06 1973-04-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598470A (en) * 1969-11-05 1971-08-10 Prismalite Inc Projection screen and system
JPS4827695A (en) * 1971-08-06 1973-04-12

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296342A (en) * 1985-06-25 1986-12-27 Yuupu:Kk Reflex projecting screen
JPS6463901A (en) * 1987-07-27 1989-03-09 I T W New Zealand Ltd Reflection mirror apparatus
EP0742320A4 (en) * 1994-10-07 1998-11-18 Japan Invention Spread Promoti Reflective sheet
JP2019082600A (en) * 2017-10-31 2019-05-30 株式会社シマノ Reflector and small vehicle including bicycle

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