KR920017225U - Light sensor's external light compensation circuit - Google Patents

Light sensor's external light compensation circuit

Info

Publication number
KR920017225U
KR920017225U KR2019910002604U KR910002604U KR920017225U KR 920017225 U KR920017225 U KR 920017225U KR 2019910002604 U KR2019910002604 U KR 2019910002604U KR 910002604 U KR910002604 U KR 910002604U KR 920017225 U KR920017225 U KR 920017225U
Authority
KR
South Korea
Prior art keywords
compensation circuit
light
light sensor
external light
external
Prior art date
Application number
KR2019910002604U
Other languages
Korean (ko)
Other versions
KR940004104Y1 (en
Inventor
조중현
Original Assignee
금성기전 주식회사
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 금성기전 주식회사 filed Critical 금성기전 주식회사
Priority to KR2019910002604U priority Critical patent/KR940004104Y1/en
Publication of KR920017225U publication Critical patent/KR920017225U/en
Application granted granted Critical
Publication of KR940004104Y1 publication Critical patent/KR940004104Y1/en

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
    • 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
    • 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
    • G01J2001/444—Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting
    • 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
    • G01J2001/4446—Type of detector
    • G01J2001/4473—Phototransistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Communication System (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
KR2019910002604U 1991-02-25 1991-02-25 Compensation circuit for photosenser KR940004104Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910002604U KR940004104Y1 (en) 1991-02-25 1991-02-25 Compensation circuit for photosenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910002604U KR940004104Y1 (en) 1991-02-25 1991-02-25 Compensation circuit for photosenser

Publications (2)

Publication Number Publication Date
KR920017225U true KR920017225U (en) 1992-09-17
KR940004104Y1 KR940004104Y1 (en) 1994-06-20

Family

ID=19311211

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019910002604U KR940004104Y1 (en) 1991-02-25 1991-02-25 Compensation circuit for photosenser

Country Status (1)

Country Link
KR (1) KR940004104Y1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100405259B1 (en) * 2001-10-19 2003-11-12 홍영기 sling of fire fighting water gun

Also Published As

Publication number Publication date
KR940004104Y1 (en) 1994-06-20

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Legal Events

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A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
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Year of fee payment: 5

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