JPH0351476U - - Google Patents

Info

Publication number
JPH0351476U
JPH0351476U JP11144489U JP11144489U JPH0351476U JP H0351476 U JPH0351476 U JP H0351476U JP 11144489 U JP11144489 U JP 11144489U JP 11144489 U JP11144489 U JP 11144489U JP H0351476 U JPH0351476 U JP H0351476U
Authority
JP
Japan
Prior art keywords
light
guide plate
light guide
spots
light source
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
JP11144489U
Other languages
English (en)
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 filed Critical
Priority to JP11144489U priority Critical patent/JPH0351476U/ja
Publication of JPH0351476U publication Critical patent/JPH0351476U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す正面図、第２
図は同側断面図、第３図は輝度の測定箇所を示す
平面図である。第４図は他の実施例を示す正面図
、第５図は同底断面図、第６図は第４図のＡ部分
の拡大正面図、第７図は第４図のＢ部分の拡大正
面図である。第８図は他の実施例を示す正面図、
第９図は同底断面図、第１０図は第８図のＣ部分
の拡大正面図、第１１図は第８図のＤ部分の拡大
正面図、第１２図は第８図のＥ部分の拡大正面図
、第１３図は第８図のＦ部分の拡大正面図、第１
４図は輝度の測定箇所を示す正面図である。第１
５図は従来例を示す正面図、第１６図は同側断面
図である。 １……導光板、２……光放散面、３……反射層
、４……反射面、５……斑点、６……光源。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 一面が光放散面２とされ他面が反射面４と
    された導光板１を備え、導光板１の反射面４側に
    光を乱反射する斑点５を散点状に設け、導光板１
    の側端面から光源６の光を導光板１に入射し、斑
    点５での乱反射光により光放散面２側を発光させ
    るようにした導光板装置において、 前記斑点５を、光源６に近い側から遠い側に向
    けて徐々に大になるように形成したことを特徴と
    する導光板装置。 (2) 光源６の近傍部分において、前記斑点５を
    導光板１の光源６中央に対応する側から光源６両
    端部に対応する側に向けて徐々に大になるように
    形成したことを特徴とする第１項記載の導光板装
    置。
JP11144489U 1989-09-22 1989-09-22 Pending JPH0351476U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11144489U JPH0351476U (ja) 1989-09-22 1989-09-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11144489U JPH0351476U (ja) 1989-09-22 1989-09-22

Publications (1)

Publication Number Publication Date
JPH0351476U true JPH0351476U (ja) 1991-05-20

Family

ID=31659921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11144489U Pending JPH0351476U (ja) 1989-09-22 1989-09-22

Country Status (1)

Country Link
JP (1) JPH0351476U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001795A1 (fr) * 1992-07-13 1994-01-20 Seiko Epson Corporation Dispositif d'eclairage de surface et affichage a cristaux liquides

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389295A (ja) * 1989-08-31 1991-04-15 Nissha Printing Co Ltd 面光源装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389295A (ja) * 1989-08-31 1991-04-15 Nissha Printing Co Ltd 面光源装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001795A1 (fr) * 1992-07-13 1994-01-20 Seiko Epson Corporation Dispositif d'eclairage de surface et affichage a cristaux liquides

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