JPS5938439U - projection device - Google Patents

projection device

Info

Publication number
JPS5938439U
JPS5938439U JP1982131791U JP13179182U JPS5938439U JP S5938439 U JPS5938439 U JP S5938439U JP 1982131791 U JP1982131791 U JP 1982131791U JP 13179182 U JP13179182 U JP 13179182U JP S5938439 U JPS5938439 U JP S5938439U
Authority
JP
Japan
Prior art keywords
screen
light source
projection light
projection
projection device
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
JP1982131791U
Other languages
Japanese (ja)
Inventor
堤　重信
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP1982131791U priority Critical patent/JPS5938439U/en
Publication of JPS5938439U publication Critical patent/JPS5938439U/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図乃至第４図は投写装置の一例を示す説明図、第５
図は本考案の一実施例を示す平面図、第６図はスクリー
ンの斜視図、第７図乃至第１１図は本考案の動作を説明
するスクリーンの要部平断面図、第１２図はスクリーン
の明るさを示す波形図、第１３図はスクリーンの変形例
を示す要部平断面図である。 １・・・・・・投写光源、４・・・・・・スクリーン、
６・・・・・・光反射層、７・・・・・・突起。1 to 4 are explanatory diagrams showing an example of a projection device, and FIG.
The figure is a plan view showing an embodiment of the present invention, FIG. 6 is a perspective view of the screen, FIGS. 7 to 11 are plan sectional views of main parts of the screen to explain the operation of the present invention, and FIG. 12 is the screen. FIG. 13 is a waveform diagram showing the brightness of the screen, and FIG. 13 is a plan cross-sectional view of the main part showing a modified example of the screen. 1...Projection light source, 4...Screen,
6...Light reflective layer, 7...Protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 投写光源の光軸上前方に投写光源から投写された映像光
を結像させ透過させるスクリーンを配置したものにおい
て、上記スクリーンの投写光源側内面に投写光の走査方
向と略直交し表面に光反射層を形成した略三角柱状の突
起を複数平行配列したことを特徴とする投写装置。In a screen that forms an image and transmits the image light projected from the projection light source in front of the projection light source on the optical axis, the screen has a surface that is substantially perpendicular to the scanning direction of the projection light and that reflects light on the inner surface of the screen on the projection light source side. A projection device characterized in that a plurality of substantially triangular prism-shaped protrusions forming layers are arranged in parallel.
JP1982131791U 1982-08-31 1982-08-31 projection device Pending JPS5938439U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982131791U JPS5938439U (en) 1982-08-31 1982-08-31 projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982131791U JPS5938439U (en) 1982-08-31 1982-08-31 projection device

Publications (1)

Publication Number Publication Date
JPS5938439U true JPS5938439U (en) 1984-03-10

Family

ID=30297836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982131791U Pending JPS5938439U (en) 1982-08-31 1982-08-31 projection device

Country Status (1)

Country Link
JP (1) JPS5938439U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0530145U (en) * 1991-09-24 1993-04-20 三菱自動車工業株式会社 Quenching equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0530145U (en) * 1991-09-24 1993-04-20 三菱自動車工業株式会社 Quenching equipment

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