JPH02127048U - - Google Patents

Info

Publication number
JPH02127048U
JPH02127048U JP3517989U JP3517989U JPH02127048U JP H02127048 U JPH02127048 U JP H02127048U JP 3517989 U JP3517989 U JP 3517989U JP 3517989 U JP3517989 U JP 3517989U JP H02127048 U JPH02127048 U JP H02127048U
Authority
JP
Japan
Prior art keywords
emitting device
light
light emitting
adjusting
current flowing
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
JP3517989U
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 JP3517989U priority Critical patent/JPH02127048U/ja
Publication of JPH02127048U publication Critical patent/JPH02127048U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図は本考案に係る発光ダイオード調光回路
を示す図、第２図は従来の発光ダイオード調光回
路を示す図である。 図中、１１…可変抵抗器、１３…演算増幅器、
１４…トランジスタ、１６…トランジスタ、１９
…発光ダイオード、１２，１５，１７，１８…抵
抗器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 明るさが通電電流に対して指数関数特性的に変
    化する発光デバイスを具備し、該発光デバイスに
    通電する電流を調整して該発光デバイスが発する
    光の明るさを調整する調光回路において、該指数
    関数と反対方向の対数関数特性を有する駆動回路
    を設け、該駆動回路を介して前記発光デバイスに
    通電することを特徴とする発光デバイスの調光回
    路。
JP3517989U 1989-03-28 1989-03-28 Pending JPH02127048U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3517989U JPH02127048U (ja) 1989-03-28 1989-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3517989U JPH02127048U (ja) 1989-03-28 1989-03-28

Publications (1)

Publication Number Publication Date
JPH02127048U true JPH02127048U (ja) 1990-10-19

Family

ID=31540310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3517989U Pending JPH02127048U (ja) 1989-03-28 1989-03-28

Country Status (1)

Country Link
JP (1) JPH02127048U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024523989A (ja) * 2021-07-20 2024-07-05 アルコン インコーポレイティド ライトエンジン較正システム及び方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349978A (en) * 1976-10-18 1978-05-06 Nec Corp Electric light converter of non-linear distortion compensation type
JPS542082A (en) * 1977-06-07 1979-01-09 Nec Corp Compensation circuit of non-linear distortion for light emitting diode
JPS5890788A (ja) * 1981-11-25 1983-05-30 Nec Corp 半導体発光ダイオ−ドの駆動装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349978A (en) * 1976-10-18 1978-05-06 Nec Corp Electric light converter of non-linear distortion compensation type
JPS542082A (en) * 1977-06-07 1979-01-09 Nec Corp Compensation circuit of non-linear distortion for light emitting diode
JPS5890788A (ja) * 1981-11-25 1983-05-30 Nec Corp 半導体発光ダイオ−ドの駆動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024523989A (ja) * 2021-07-20 2024-07-05 アルコン インコーポレイティド ライトエンジン較正システム及び方法

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