JPS53148372A - Integrating circuit - Google Patents

Integrating circuit

Info

Publication number
JPS53148372A
JPS53148372A JP6370777A JP6370777A JPS53148372A JP S53148372 A JPS53148372 A JP S53148372A JP 6370777 A JP6370777 A JP 6370777A JP 6370777 A JP6370777 A JP 6370777A JP S53148372 A JPS53148372 A JP S53148372A
Authority
JP
Japan
Prior art keywords
integrating circuit
circuit
integrating
capacitibe
photometry
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
JP6370777A
Other languages
English (en)
Inventor
Masamichi Furukawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6370777A priority Critical patent/JPS53148372A/ja
Priority to US05/909,110 priority patent/US4223271A/en
Priority to DE2823807A priority patent/DE2823807C3/de
Publication of JPS53148372A publication Critical patent/JPS53148372A/ja
Pending 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
    • G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
    • G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/04—Measuring arrangements giving results other than momentary value of variable, of general application giving integrated values
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
    • G06G7/186—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
JP6370777A 1977-05-31 1977-05-31 Integrating circuit Pending JPS53148372A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6370777A JPS53148372A (en) 1977-05-31 1977-05-31 Integrating circuit
US05/909,110 US4223271A (en) 1977-05-31 1978-05-24 Integrating circuit
DE2823807A DE2823807C3 (de) 1977-05-31 1978-05-31 Kamera mit Belichtungssteuerschaltung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6370777A JPS53148372A (en) 1977-05-31 1977-05-31 Integrating circuit

Publications (1)

Publication Number Publication Date
JPS53148372A true JPS53148372A (en) 1978-12-23

Family

ID=13237105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6370777A Pending JPS53148372A (en) 1977-05-31 1977-05-31 Integrating circuit

Country Status (3)

Country Link
US (1) US4223271A (ja)
JP (1) JPS53148372A (ja)
DE (1) DE2823807C3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340113A (ja) * 1986-08-06 1988-02-20 Nec Corp 自動焦点機構

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116072A1 (de) * 1981-04-22 1982-11-11 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer einen strahlendetektor
US4516041A (en) * 1982-11-22 1985-05-07 Sony Corporation Voltage controlled variable capacitor
JPH0736523B2 (ja) * 1990-08-14 1995-04-19 菊水電子工業株式会社 直線補間器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047808A (en) * 1959-02-06 1962-07-31 Gen Precision Inc Integrator with means for compensating for capacity absorption effects
US3225949A (en) * 1962-08-17 1965-12-28 Clark Equipment Co Lift truck with load handling assembly mounted on a movable frame supported by the steering wheel of the truck
US3370247A (en) * 1964-07-24 1968-02-20 Navy Usa Harmonic notch filter
US3845398A (en) * 1972-02-23 1974-10-29 B Katz Adjustable time constant operating circuit
US3904978A (en) * 1974-08-08 1975-09-09 Bell Telephone Labor Inc Active resistor-capacitor filter arrangement
US3983504A (en) * 1975-11-21 1976-09-28 Franklin Moy Active filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340113A (ja) * 1986-08-06 1988-02-20 Nec Corp 自動焦点機構

Also Published As

Publication number Publication date
DE2823807A1 (de) 1978-12-07
DE2823807C3 (de) 1980-10-23
DE2823807B2 (de) 1980-02-28
US4223271A (en) 1980-09-16

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