JPH03119876U - - Google Patents

Info

Publication number
JPH03119876U
JPH03119876U JP2775190U JP2775190U JPH03119876U JP H03119876 U JPH03119876 U JP H03119876U JP 2775190 U JP2775190 U JP 2775190U JP 2775190 U JP2775190 U JP 2775190U JP H03119876 U JPH03119876 U JP H03119876U
Authority
JP
Japan
Prior art keywords
light source
aperture
light guide
diffusion plate
plate placed
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
JP2775190U
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 JP2775190U priority Critical patent/JPH03119876U/ja
Publication of JPH03119876U publication Critical patent/JPH03119876U/ja
Pending legal-status Critical Current

Links

Landscapes

  • 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の断面図、第2図は
従来のアパーチヤー型光源を用いた導光体方式の
面光源装置の断面図である。 1……光源、2……導光体、3……拡散板、4
……反射板。

Claims (1)

    【実用新案登録請求の範囲】
  1. アパーチヤー型の光源と、入射端面を前記光源
    のアパーチヤーに近接させて配置した導光体と、
    導光体の表面側に配置した拡散板と、導光体の拡
    散板側とは反対側に配置した反射板とよりなり、
    前記光源のアパーチヤー角を30°±10°に設
    定したことを特徴とする面光源装置。
JP2775190U 1990-03-20 1990-03-20 Pending JPH03119876U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2775190U JPH03119876U (ja) 1990-03-20 1990-03-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2775190U JPH03119876U (ja) 1990-03-20 1990-03-20

Publications (1)

Publication Number Publication Date
JPH03119876U true JPH03119876U (ja) 1991-12-10

Family

ID=31530591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2775190U Pending JPH03119876U (ja) 1990-03-20 1990-03-20

Country Status (1)

Country Link
JP (1) JPH03119876U (ja)

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