JPS6418508U - - Google Patents

Info

Publication number
JPS6418508U
JPS6418508U JP9316988U JP9316988U JPS6418508U JP S6418508 U JPS6418508 U JP S6418508U JP 9316988 U JP9316988 U JP 9316988U JP 9316988 U JP9316988 U JP 9316988U JP S6418508 U JPS6418508 U JP S6418508U
Authority
JP
Japan
Prior art keywords
light
area
reflection
light absorption
transparent
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.)
Granted
Application number
JP9316988U
Other languages
English (en)
Other versions
JPH0521205Y2 (ja
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 JP1988093169U priority Critical patent/JPH0521205Y2/ja
Publication of JPS6418508U publication Critical patent/JPS6418508U/ja
Application granted granted Critical
Publication of JPH0521205Y2 publication Critical patent/JPH0521205Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係る背面反射式光拡散装置の
一実施例を示す断面図、第２図は第１図の概略平
面図、第３図は第１図中の主体をなす導光板の一
例を示す斜視図、第４図は第１図の光反射板と光
吸収部材との配設装備の状況を示す説明図、第５
図ないし第８図は各々光反射板と光吸収部材の配
設装備の状況を示す説明図、第９図は従来例を示
す平面図である。 １０Ａ……一方の面をなす光放散面、１０Ｂ…
…他方の面をなす光反射面、１０Ｃ，１０Ｄ……
側端面、１０Ｅ，１０Ｆ……光導入部としての切
欠き部、１１……光反射板、１５……光吸収部材
。

Claims (1)

  1. 【実用新案登録請求の範囲】 一方の面を光放散面とするとともに他方の面の
    内側を光反射面とする両面が平坦に形成された透
    明もしくは半透明の導光板を設け、 この導光板の側端の一部に光導入部を形成する
    とともに、前記光反射面には、光反射板による光
    反射領域と光吸収部材による光吸収領域とを形成
    し、 前記光吸収部材による光吸収領域の単位面積当
    たりの割合を、前記光導入部に近づくに従い大き
    く設定したことを特徴とする背面反射式光拡散装
    置。
JP1988093169U 1988-07-14 1988-07-14 Expired - Lifetime JPH0521205Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988093169U JPH0521205Y2 (ja) 1988-07-14 1988-07-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988093169U JPH0521205Y2 (ja) 1988-07-14 1988-07-14

Publications (2)

Publication Number Publication Date
JPS6418508U true JPS6418508U (ja) 1989-01-30
JPH0521205Y2 JPH0521205Y2 (ja) 1993-05-31

Family

ID=31317618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988093169U Expired - Lifetime JPH0521205Y2 (ja) 1988-07-14 1988-07-14

Country Status (1)

Country Link
JP (1) JPH0521205Y2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04221236A (ja) * 1990-03-20 1992-08-11 General Electric Co <Ge> 自動車用に特に適した大面積薄形の均一照明装置
WO1998019105A1 (fr) * 1996-10-25 1998-05-07 Omron Corporation Source lumineuse de surface et affichage a cristaux liquides, telephone portable et terminal d'informations mettant en oeuvre cette source lumineuse de surface
JP2015198081A (ja) * 2014-03-31 2015-11-09 瑞儀光電股▲分▼有限公司Ｒａｄｉｔａｎｔ Ｏｐｔｏ−Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏｒｐｒａｔｉｏｎ 光源モジュール

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814545U (ja) * 1971-06-30 1973-02-17

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814545B1 (ja) * 1969-10-15 1973-05-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814545U (ja) * 1971-06-30 1973-02-17

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04221236A (ja) * 1990-03-20 1992-08-11 General Electric Co <Ge> 自動車用に特に適した大面積薄形の均一照明装置
WO1998019105A1 (fr) * 1996-10-25 1998-05-07 Omron Corporation Source lumineuse de surface et affichage a cristaux liquides, telephone portable et terminal d'informations mettant en oeuvre cette source lumineuse de surface
JP2015198081A (ja) * 2014-03-31 2015-11-09 瑞儀光電股▲分▼有限公司Ｒａｄｉｔａｎｔ Ｏｐｔｏ−Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏｒｐｒａｔｉｏｎ 光源モジュール
US10121938B2 (en) 2014-03-31 2018-11-06 Radiant Opto-Electronics Corporation Light source module

Also Published As

Publication number Publication date
JPH0521205Y2 (ja) 1993-05-31

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