JPS5979840U - screen - Google Patents

screen

Info

Publication number
JPS5979840U
JPS5979840U JP1982175424U JP17542482U JPS5979840U JP S5979840 U JPS5979840 U JP S5979840U JP 1982175424 U JP1982175424 U JP 1982175424U JP 17542482 U JP17542482 U JP 17542482U JP S5979840 U JPS5979840 U JP S5979840U
Authority
JP
Japan
Prior art keywords
screen
spherical
center
moves away
spherical piece
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
JP1982175424U
Other languages
Japanese (ja)
Inventor
和男 足立
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP1982175424U priority Critical patent/JPS5979840U/en
Publication of JPS5979840U publication Critical patent/JPS5979840U/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の反射形の球面スクリーンを示す斜視図、
第2図はこの考案の背景となる平面状スクリーンを示す
斜視図、第3図はこの考案の原理を説明するための光源
と結像点との関係を示す図、第4図はこの考案における
光源と結像点との関係を示す図である。 2.20・・・スクリーン、pl、 p2. p3. 
p4°°°球面小片、Po・・・中央構成面。なお、図
中同一符号は同一または相当部分を示す。
Figure 1 is a perspective view of a conventional reflective spherical screen;
Fig. 2 is a perspective view showing a flat screen which is the background of this invention, Fig. 3 is a diagram showing the relationship between a light source and an imaging point to explain the principle of this invention, and Fig. 4 is a diagram showing the relationship between a light source and an imaging point in order to explain the principle of this invention. It is a figure showing the relationship between a light source and an imaging point. 2.20...Screen, pl, p2. p3.
p4°°°spherical small piece, Po... central constituent surface. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] スクリーン面が多数の球面小片に分割され、各球面小片
はスクリーン中心から遠ざかるにしたがって順次段落ち
しており、かつ上記各球面小片の最前面突用部が同一面
上に存在している平面状のスクリーンにおいて、上記球
面小片の曲率をスクリーン中心から遠ざかるにしたがっ
て大きくしたことを特徴とするスクリーン。
A planar shape in which the screen surface is divided into a large number of spherical pieces, each spherical piece is stepped down in steps as it moves away from the center of the screen, and the frontmost projecting portion of each spherical piece is on the same plane. A screen characterized in that the curvature of the spherical piece increases as it moves away from the center of the screen.
JP1982175424U 1982-11-17 1982-11-17 screen Pending JPS5979840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982175424U JPS5979840U (en) 1982-11-17 1982-11-17 screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982175424U JPS5979840U (en) 1982-11-17 1982-11-17 screen

Publications (1)

Publication Number Publication Date
JPS5979840U true JPS5979840U (en) 1984-05-30

Family

ID=30381662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982175424U Pending JPS5979840U (en) 1982-11-17 1982-11-17 screen

Country Status (1)

Country Link
JP (1) JPS5979840U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003029344A (en) * 2001-07-13 2003-01-29 Arisawa Mfg Co Ltd Screen
JP2006091165A (en) * 2004-09-21 2006-04-06 Seiko Epson Corp Screen device for projection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003029344A (en) * 2001-07-13 2003-01-29 Arisawa Mfg Co Ltd Screen
JP2006091165A (en) * 2004-09-21 2006-04-06 Seiko Epson Corp Screen device for projection

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