JPH0371504U - - Google Patents

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Publication number
JPH0371504U
JPH0371504U JP13363189U JP13363189U JPH0371504U JP H0371504 U JPH0371504 U JP H0371504U JP 13363189 U JP13363189 U JP 13363189U JP 13363189 U JP13363189 U JP 13363189U JP H0371504 U JPH0371504 U JP H0371504U
Authority
JP
Japan
Prior art keywords
light source
light guide
chevron
shaped grooves
increases
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
JP13363189U
Other languages
English (en)
Other versions
JPH089681Y2 (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 JP13363189U priority Critical patent/JPH089681Y2/ja
Publication of JPH0371504U publication Critical patent/JPH0371504U/ja
Application granted granted Critical
Publication of JPH089681Y2 publication Critical patent/JPH089681Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】
第1図乃至第4図は本考案の面光源装置の第1
実施例に係り、第1図及び第2図は該面光源装置
の平面図及び側面図、第3図及び第4図は本考案
に係る導光体の斜視図及び正面図、第5図及び第
6図は本考案の第2実施例による導光体の斜視図
及び正面図、第7図は従来の面光源装置の縦断面
図である。 1……光源、3……導光体、4……拡散板、5
……反射板。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光源と該光源側に入射端面を近接配置した導光
    体と該導光体の表面及び裏面に付設した拡散板及
    び反射板とから成る面光源装置において、上記導
    光体の入射端面側から対向端面側へ延びる複数条
    の断面鋸歯状にした山型溝を形成し、該山型溝は
    上記光源からの距離に従つて上記鋸歯状山型の高
    さ又は深さが大きくなるようにテーパ状になつて
    いることを特徴とする面光源装置。
JP13363189U 1989-11-17 1989-11-17 面光源装置 Expired - Lifetime JPH089681Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13363189U JPH089681Y2 (ja) 1989-11-17 1989-11-17 面光源装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13363189U JPH089681Y2 (ja) 1989-11-17 1989-11-17 面光源装置

Publications (2)

Publication Number Publication Date
JPH0371504U true JPH0371504U (ja) 1991-07-19
JPH089681Y2 JPH089681Y2 (ja) 1996-03-21

Family

ID=31681030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13363189U Expired - Lifetime JPH089681Y2 (ja) 1989-11-17 1989-11-17 面光源装置

Country Status (1)

Country Link
JP (1) JPH089681Y2 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11109136A (ja) * 1997-10-06 1999-04-23 Kimoto & Co Ltd 面状光源用導光板
JP2008010267A (ja) * 2006-06-28 2008-01-17 Sharp Corp 液晶照明装置
JP2008016247A (ja) * 2006-07-04 2008-01-24 Radiant Opt-Electronics Corp 導光板
JP2009048943A (ja) * 2007-08-22 2009-03-05 Panasonic Electric Works Co Ltd 面状発光装置
WO2009102066A1 (ja) * 2008-02-15 2009-08-20 Masao Yoshida ライトパネル
JP2009207408A (ja) * 2008-03-04 2009-09-17 Bunmei Noki Kk 砂糖きびの管理作業機

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11109136A (ja) * 1997-10-06 1999-04-23 Kimoto & Co Ltd 面状光源用導光板
JP2008010267A (ja) * 2006-06-28 2008-01-17 Sharp Corp 液晶照明装置
JP2008016247A (ja) * 2006-07-04 2008-01-24 Radiant Opt-Electronics Corp 導光板
JP2009048943A (ja) * 2007-08-22 2009-03-05 Panasonic Electric Works Co Ltd 面状発光装置
WO2009102066A1 (ja) * 2008-02-15 2009-08-20 Masao Yoshida ライトパネル
JP2009207408A (ja) * 2008-03-04 2009-09-17 Bunmei Noki Kk 砂糖きびの管理作業機

Also Published As

Publication number Publication date
JPH089681Y2 (ja) 1996-03-21

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term