JPH0414740B2 - - Google Patents

Info

Publication number
JPH0414740B2
JPH0414740B2 JP2589385A JP2589385A JPH0414740B2 JP H0414740 B2 JPH0414740 B2 JP H0414740B2 JP 2589385 A JP2589385 A JP 2589385A JP 2589385 A JP2589385 A JP 2589385A JP H0414740 B2 JPH0414740 B2 JP H0414740B2
Authority
JP
Japan
Prior art keywords
voltage
transistor
light receiving
transistors
emitter
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
Application number
JP2589385A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61184425A (ja
Inventor
Nobuyuki Suzuki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2589385A priority Critical patent/JPS61184425A/ja
Publication of JPS61184425A publication Critical patent/JPS61184425A/ja
Publication of JPH0414740B2 publication Critical patent/JPH0414740B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP2589385A 1985-02-12 1985-02-12 測光回路 Granted JPS61184425A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2589385A JPS61184425A (ja) 1985-02-12 1985-02-12 測光回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2589385A JPS61184425A (ja) 1985-02-12 1985-02-12 測光回路

Publications (2)

Publication Number Publication Date
JPS61184425A JPS61184425A (ja) 1986-08-18
JPH0414740B2 true JPH0414740B2 (forum.php) 1992-03-13

Family

ID=12178468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2589385A Granted JPS61184425A (ja) 1985-02-12 1985-02-12 測光回路

Country Status (1)

Country Link
JP (1) JPS61184425A (forum.php)

Also Published As

Publication number Publication date
JPS61184425A (ja) 1986-08-18

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