JPH0377955B2 - - Google Patents

Info

Publication number
JPH0377955B2
JPH0377955B2 JP60069518A JP6951885A JPH0377955B2 JP H0377955 B2 JPH0377955 B2 JP H0377955B2 JP 60069518 A JP60069518 A JP 60069518A JP 6951885 A JP6951885 A JP 6951885A JP H0377955 B2 JPH0377955 B2 JP H0377955B2
Authority
JP
Japan
Prior art keywords
light
circuit
sheets
voltage
light receiving
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.)
Expired - Lifetime
Application number
JP60069518A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61228376A (ja
Inventor
Ichiro Urano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP60069518A priority Critical patent/JPS61228376A/ja
Publication of JPS61228376A publication Critical patent/JPS61228376A/ja
Publication of JPH0377955B2 publication Critical patent/JPH0377955B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP60069518A 1985-04-01 1985-04-01 光学系出力電圧チェック回路 Granted JPS61228376A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60069518A JPS61228376A (ja) 1985-04-01 1985-04-01 光学系出力電圧チェック回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60069518A JPS61228376A (ja) 1985-04-01 1985-04-01 光学系出力電圧チェック回路

Publications (2)

Publication Number Publication Date
JPS61228376A JPS61228376A (ja) 1986-10-11
JPH0377955B2 true JPH0377955B2 (US06650917-20031118-M00005.png) 1991-12-12

Family

ID=13405022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60069518A Granted JPS61228376A (ja) 1985-04-01 1985-04-01 光学系出力電圧チェック回路

Country Status (1)

Country Link
JP (1) JPS61228376A (US06650917-20031118-M00005.png)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951378A (ja) * 1982-09-17 1984-03-24 Usac Electronics Ind Co Ltd 給紙装置の用紙検出方式
JPS5970990A (ja) * 1982-10-18 1984-04-21 Ricoh Co Ltd 調光方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176833U (ja) * 1982-05-19 1983-11-26 株式会社日立製作所 紙葉重複送り検出回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951378A (ja) * 1982-09-17 1984-03-24 Usac Electronics Ind Co Ltd 給紙装置の用紙検出方式
JPS5970990A (ja) * 1982-10-18 1984-04-21 Ricoh Co Ltd 調光方法

Also Published As

Publication number Publication date
JPS61228376A (ja) 1986-10-11

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