JPH0233001U - - Google Patents

Info

Publication number
JPH0233001U
JPH0233001U JP11194688U JP11194688U JPH0233001U JP H0233001 U JPH0233001 U JP H0233001U JP 11194688 U JP11194688 U JP 11194688U JP 11194688 U JP11194688 U JP 11194688U JP H0233001 U JPH0233001 U JP H0233001U
Authority
JP
Japan
Prior art keywords
light
light source
diffusing plate
cover
utility
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
JP11194688U
Other languages
English (en)
Other versions
JP2562315Y2 (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 JP1988111946U priority Critical patent/JP2562315Y2/ja
Publication of JPH0233001U publication Critical patent/JPH0233001U/ja
Application granted granted Critical
Publication of JP2562315Y2 publication Critical patent/JP2562315Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Optical Elements Other Than Lenses (AREA)

Description

【図面の簡単な説明】
第１図は本考案による拡散板を用いた照明装置
の一例の縦断面図、第２図は第１図の拡散板の部
分縦断面図、第３図は該拡散板によつて得られた
照明光の輝度特性を示すグラフ、第４図及び第５
図は拡散板の変形例を示す部分縦断面図及びその
輝度特性を示すグラフ、第６図及び第７図は従来
の照明装置の縦断面図及びその輝度特性を示すグ
ラフである。 １……光源、２……反射板、３′……拡散板本
体、３′ａ……シボ面、４……カバー、Ｐ……被
照明体。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 直線状の光源と被照明体との間に配置され
    上記光源からの直接光と反射板等により反射され
    た該光源からの間接光とを上記被照明体に対して
    一様になるように拡散せしめ得る拡散板において
    、上記光源と反射側の面がシボ加工された拡散板
    本体と該シボ面と密着又は離隔したカバーとから
    成る光拡散板。 (2) 上記カバーが拡散板であることを特徴とす
    る実用新案登録請求の範囲(1)に記載の光拡散板
    。 (3) 上記カバーが透明板であることを特徴とす
    る実用新案登録請求の範囲(1)に記載の光拡散板
    。
JP1988111946U 1988-08-26 1988-08-26 光拡散板 Expired - Lifetime JP2562315Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988111946U JP2562315Y2 (ja) 1988-08-26 1988-08-26 光拡散板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988111946U JP2562315Y2 (ja) 1988-08-26 1988-08-26 光拡散板

Publications (2)

Publication Number Publication Date
JPH0233001U true JPH0233001U (ja) 1990-03-01
JP2562315Y2 JP2562315Y2 (ja) 1998-02-10

Family

ID=31350445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988111946U Expired - Lifetime JP2562315Y2 (ja) 1988-08-26 1988-08-26 光拡散板

Country Status (1)

Country Link
JP (1) JP2562315Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004090587A1 (ja) * 2003-04-02 2004-10-21 Asahi Kasei Chemicals Corporation 光拡散板

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130847A (en) * 1978-04-01 1979-10-11 Nippon Telegr & Teleph Corp <Ntt> Precedence change system
JPS5647529U (ja) * 1979-09-20 1981-04-27
JPS5671337A (en) * 1979-11-15 1981-06-13 Chubu Denso Kk Small-sized transceiver for portable type
JPS57195182U (ja) * 1981-05-19 1982-12-10
JPS5998969A (ja) * 1982-11-29 1984-06-07 アイジー工業株式会社 出隅構造
JPS59149784A (ja) * 1983-01-31 1984-08-27 Toshiba Corp 直流電動機の制御方法
JPS6143783A (ja) * 1984-08-07 1986-03-03 シチズン時計株式会社 照明装置
JPS61176586A (ja) * 1985-01-29 1986-08-08 ゲデツケ　アクチエンゲゼルシヤフト 新規な１，６‐ナフチリジノン誘導体
JPS6329123U (ja) * 1986-08-09 1988-02-25
JPS6382224U (ja) * 1986-11-19 1988-05-30

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130847A (en) * 1978-04-01 1979-10-11 Nippon Telegr & Teleph Corp <Ntt> Precedence change system
JPS5647529U (ja) * 1979-09-20 1981-04-27
JPS5671337A (en) * 1979-11-15 1981-06-13 Chubu Denso Kk Small-sized transceiver for portable type
JPS57195182U (ja) * 1981-05-19 1982-12-10
JPS5998969A (ja) * 1982-11-29 1984-06-07 アイジー工業株式会社 出隅構造
JPS59149784A (ja) * 1983-01-31 1984-08-27 Toshiba Corp 直流電動機の制御方法
JPS6143783A (ja) * 1984-08-07 1986-03-03 シチズン時計株式会社 照明装置
JPS61176586A (ja) * 1985-01-29 1986-08-08 ゲデツケ　アクチエンゲゼルシヤフト 新規な１，６‐ナフチリジノン誘導体
JPS6329123U (ja) * 1986-08-09 1988-02-25
JPS6382224U (ja) * 1986-11-19 1988-05-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004090587A1 (ja) * 2003-04-02 2004-10-21 Asahi Kasei Chemicals Corporation 光拡散板

Also Published As

Publication number Publication date
JP2562315Y2 (ja) 1998-02-10

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