JPS50112033A - - Google Patents

Info

Publication number
JPS50112033A
JPS50112033A JP50016023A JP1602375A JPS50112033A JP S50112033 A JPS50112033 A JP S50112033A JP 50016023 A JP50016023 A JP 50016023A JP 1602375 A JP1602375 A JP 1602375A JP S50112033 A JPS50112033 A JP S50112033A
Authority
JP
Japan
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.)
Granted
Application number
JP50016023A
Other languages
Japanese (ja)
Other versions
JPS5754763B2 (enExample
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
Publication of JPS50112033A publication Critical patent/JPS50112033A/ja
Publication of JPS5754763B2 publication Critical patent/JPS5754763B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F30/00—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors
    • H10F30/20—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/32—Measuring distances in line of sight; Optical rangefinders by focusing the object, e.g. on a ground glass screen
    • 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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/40—Optical focusing aids
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/081—Analogue circuits
    • G03B7/085—Analogue circuits for control of aperture
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Liquid Crystal (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Light Receiving Elements (AREA)
JP50016023A 1974-02-08 1975-02-07 Expired JPS5754763B2 (enExample)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2406045A DE2406045C2 (de) 1974-02-08 1974-02-08 Anordnung, bestehend aus wenigstens zwei fotoelektrischen Wandlerelementen
DE2407105A DE2407105C2 (de) 1974-02-08 1974-02-14 Anordnung zur Scharfeinstellung eines von einem optischen System erzeugten Objektbildes
DE19742407639 DE2407639A1 (de) 1974-02-08 1974-02-18 Stabilisierungsautomatik mit elektronisch gesteuerter umschaltung des feinkontrastes
US46369074A 1974-04-24 1974-04-24
US05/633,099 US4049960A (en) 1974-02-08 1975-11-19 Focusing arrangement

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP57018371A Division JPS57164582A (en) 1974-02-08 1982-02-08 Optoelectric transducer

Publications (2)

Publication Number Publication Date
JPS50112033A true JPS50112033A (enExample) 1975-09-03
JPS5754763B2 JPS5754763B2 (enExample) 1982-11-19

Family

ID=27510339

Family Applications (3)

Application Number Title Priority Date Filing Date
JP50016023A Expired JPS5754763B2 (enExample) 1974-02-08 1975-02-07
JP50018703A Expired JPS5754764B2 (enExample) 1974-02-08 1975-02-14
JP57018371A Pending JPS57164582A (en) 1974-02-08 1982-02-08 Optoelectric transducer

Family Applications After (2)

Application Number Title Priority Date Filing Date
JP50018703A Expired JPS5754764B2 (enExample) 1974-02-08 1975-02-14
JP57018371A Pending JPS57164582A (en) 1974-02-08 1982-02-08 Optoelectric transducer

Country Status (3)

Country Link
US (3) US4019049A (enExample)
JP (3) JPS5754763B2 (enExample)
DE (3) DE2406045C2 (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2406045C2 (de) * 1974-02-08 1983-03-17 Canon Inc., Tokyo Anordnung, bestehend aus wenigstens zwei fotoelektrischen Wandlerelementen
CH589856A5 (enExample) * 1975-12-29 1977-07-15 Kern & Co Ag
JPS5299820A (en) * 1976-02-17 1977-08-22 Canon Inc Focusing glass
DE2715976A1 (de) * 1976-04-15 1977-10-27 Bolex Int Sa Kamera
US4080074A (en) * 1976-06-21 1978-03-21 Sterndent Corporation Automatic zeroing circuit to compensate for dark currents or the like
DE2750735C2 (de) * 1977-11-12 1987-02-05 Agfa-Gevaert Ag, 5090 Leverkusen Fotografische Kamera mit einer Entfernungsmeßvorrichtung
US4470676A (en) * 1978-07-28 1984-09-11 Canon Kabushiki Kaisha Focus detecting device
DE3050691C2 (de) * 1979-02-09 1984-09-27 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Fokussierungsermittlungseinrichtung einer Kamera mit einer Vorrichtung zur Ermittlung der Durchschnittsbeleuchtung eines zu fotografierenden Objektes
US4246476A (en) * 1979-04-12 1981-01-20 Honeywell Inc. Automatic focusing apparatus for use with a plurality of lenses
JPS5642221A (en) * 1979-09-14 1981-04-20 Konishiroku Photo Ind Co Ltd Liquid crystal focal plate
JPS575016A (en) * 1980-06-12 1982-01-11 Canon Inc Image definition detector
US4510384A (en) * 1981-08-17 1985-04-09 National Research Development Corporation Automatic focusing device with frequency weighted amplification
JPS5934505A (ja) * 1982-08-20 1984-02-24 Canon Inc 合焦検出装置
DE3606556C1 (de) * 1986-02-28 1987-08-27 Messerschmitt Boelkow Blohm Bildschaerfesensor fuer ein optisches System
JPS63101366U (enExample) * 1986-12-22 1988-07-01
US4741509A (en) * 1987-02-19 1988-05-03 Cameron Iron Works, Inc. Gate valve with improved secondary body to bushing seals
US4982439A (en) * 1989-03-17 1991-01-01 Hughes Aircraft Company Fine-grained microstructure processor
JPH04338711A (ja) * 1991-05-15 1992-11-26 Olympus Optical Co Ltd 焦点検出装置
DE19858078B4 (de) * 1998-12-16 2012-04-12 Nokia Mobile Phones Ltd. Signalverstärkerschaltung mit symmetrischen Ein- und Ausgängen
CN102737608B (zh) * 2012-06-14 2013-11-20 飞天诚信科技股份有限公司 一种提高光强度适应性的方法及装置
DE102013112553A1 (de) * 2013-11-14 2015-06-03 Odos Imaging Ltd. Beleuchtungsvorrichtung und Verfahren zum Beleuchten eines Objekts

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744200A (en) * 1952-03-07 1956-05-01 Gen Electric Multiple masked photocell structure
US3035176A (en) * 1959-11-23 1962-05-15 Packard Bell Electronics Corp Monoscopic range finder
US3084301A (en) * 1960-03-28 1963-04-02 Jr William L Mohan Scanning apparatus
DE1173327B (de) * 1961-04-10 1964-07-02 Logetronics Inc Anordnung zum Feststellen und automatischen Einstellen der Bildschaerfe in einem fotografischen Geraet
DE1447450A1 (de) * 1963-06-14 1968-10-31 Agfa Ag Entfernungsmess- oder Steuervorrichtung
DE1472285A1 (de) * 1965-06-17 1969-04-17 Logetronics Inc Verfahren zum Bestimmen der Schaerfe eines Bildes und optisches System
US3511155A (en) * 1965-07-14 1970-05-12 Nippon Kogaku Kk Automatic focussing means of optical instruments and structure of the light receiving portion thereof
US3454772A (en) * 1966-12-20 1969-07-08 Hughes Aircraft Co Photoelectric monitoring system for holding the object plane in proper focus
DE2105288B2 (de) * 1970-02-14 1973-03-15 Kabushiki Kaisha Ricoh, Tokio Kamera mit automatischer scharfeinstellung
JPS5618928B2 (enExample) * 1971-12-29 1981-05-02
JPS4922890A (enExample) * 1972-06-21 1974-02-28
DE2333529A1 (de) * 1972-07-05 1974-01-17 Dynasciences Corp Kamera mit automatischer schaerfeneinstellung
JPS5427950Y2 (enExample) * 1972-11-09 1979-09-10
JPS5625648B2 (enExample) * 1973-04-11 1981-06-13
US3838275A (en) * 1973-07-18 1974-09-24 Honeywell Inc Detecting apparatus for determining when image is in focus
US3875401B1 (en) * 1973-07-09 1994-02-01 Honeywell Inc. Focus detecting apparatus
US3857031A (en) * 1973-10-15 1974-12-24 Nasa Automatic focus control for facsimile cameras
DE2406045C2 (de) * 1974-02-08 1983-03-17 Canon Inc., Tokyo Anordnung, bestehend aus wenigstens zwei fotoelektrischen Wandlerelementen

Also Published As

Publication number Publication date
US4019049A (en) 1977-04-19
JPS50117419A (enExample) 1975-09-13
JPS5754763B2 (enExample) 1982-11-19
DE2407639A1 (de) 1975-08-28
US4049960A (en) 1977-09-20
DE2406045A1 (de) 1975-08-28
JPS5754764B2 (enExample) 1982-11-19
DE2407105A1 (de) 1975-08-28
US4155004A (en) 1979-05-15
DE2407105C2 (de) 1982-06-09
DE2406045C2 (de) 1983-03-17
JPS57164582A (en) 1982-10-09

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