JPS61102832U - - Google Patents

Info

Publication number
JPS61102832U
JPS61102832U JP18692984U JP18692984U JPS61102832U JP S61102832 U JPS61102832 U JP S61102832U JP 18692984 U JP18692984 U JP 18692984U JP 18692984 U JP18692984 U JP 18692984U JP S61102832 U JPS61102832 U JP S61102832U
Authority
JP
Japan
Prior art keywords
operational amplifier
voltage dividing
color detection
detection circuit
output
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
JP18692984U
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 JP18692984U priority Critical patent/JPS61102832U/ja
Publication of JPS61102832U publication Critical patent/JPS61102832U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Spectrometry And Color Measurement (AREA)
  • Radiation Pyrometers (AREA)

Description

【図面の簡単な説明】
第1図は本考案回路の一例の回路図、第2図、
第3図は従来回路の各例の回路図である。 1……演算増幅器、2……出力端子、D……
フオトダイオード、D……ログダイオード、R
〜R……抵抗、VREF……非反転基準電圧

Claims (1)

    【実用新案登録請求の範囲】
  1. 入射光量に応じて流れるフオトダイオードの出
    力電流を演算増幅器にて対数増幅して取出す色検
    出回路において、該演算増幅器の出力端子に該演
    算増幅器の出力電圧を分圧する分圧回路を接続し
    、該分圧回路の分圧点と該演算増幅器の入力端子
    との間に高抵抗をもつ帰還路を接続してなる色検
    出回路。
JP18692984U 1984-12-10 1984-12-10 Pending JPS61102832U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18692984U JPS61102832U (ja) 1984-12-10 1984-12-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18692984U JPS61102832U (ja) 1984-12-10 1984-12-10

Publications (1)

Publication Number Publication Date
JPS61102832U true JPS61102832U (ja) 1986-06-30

Family

ID=30744395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18692984U Pending JPS61102832U (ja) 1984-12-10 1984-12-10

Country Status (1)

Country Link
JP (1) JPS61102832U (ja)

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