JPH0461303U - - Google Patents

Info

Publication number
JPH0461303U
JPH0461303U JP10476290U JP10476290U JPH0461303U JP H0461303 U JPH0461303 U JP H0461303U JP 10476290 U JP10476290 U JP 10476290U JP 10476290 U JP10476290 U JP 10476290U JP H0461303 U JPH0461303 U JP H0461303U
Authority
JP
Japan
Prior art keywords
light
light incident
guide plate
incident surface
light guide
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
JP10476290U
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 JP10476290U priority Critical patent/JPH0461303U/ja
Publication of JPH0461303U publication Critical patent/JPH0461303U/ja
Pending legal-status Critical Current

Links

Landscapes

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

Description

【図面の簡単な説明】
第1図は導光板装置の概略図、第2図〜第6図
は本考案の実施例である導光板における入光面の
拡散面形状を示す説明図、第7図は従来例を示す
説明図である。又、第8図及び第9図は輝度測定
に使用した導光板装置の説明図である。 1……導光板、4……ドツト印刷、5……入光
面、6……光源、10……中心部域、11……拡
散面、12……両側端部。

Claims (1)

  1. 【実用新案登録請求の範囲】 一面を光放散面2、他面を内側にドツト印刷4
    が施された反射面3とした導光板1の一側端面を
    光の入射する入光面5とし、該入光面5より入射
    した光をドツト印刷4によつて乱反射させ、光放
    散面2から放出発光させるようにした導光板にお
    いて、 前記入光面5の中央部域10に入射した光の一
    部が入光面5の両側端部12に拡散するよう入光
    面5に傾斜した拡散面11を設けていることを特
    徴とする導光板。
JP10476290U 1990-10-03 1990-10-03 Pending JPH0461303U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10476290U JPH0461303U (ja) 1990-10-03 1990-10-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10476290U JPH0461303U (ja) 1990-10-03 1990-10-03

Publications (1)

Publication Number Publication Date
JPH0461303U true JPH0461303U (ja) 1992-05-26

Family

ID=31850173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10476290U Pending JPH0461303U (ja) 1990-10-03 1990-10-03

Country Status (1)

Country Link
JP (1) JPH0461303U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241590A (ja) * 1988-03-23 1989-09-26 Fujitsu Ltd 面照明装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241590A (ja) * 1988-03-23 1989-09-26 Fujitsu Ltd 面照明装置

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