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NL258177A - - Google Patents

Info

Publication number
NL258177A
NL258177A NL258177DA NL258177A NL 258177 A NL258177 A NL 258177A NL 258177D A NL258177D A NL 258177DA NL 258177 A NL258177 A NL 258177A
Authority
NL
Netherlands
Application number
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.)
Publication of NL258177A publication Critical patent/NL258177A/xx

Links

Classifications

    • 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
    • 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
    • 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
    • G01J1/4223—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for copy - or printing apparatus
    • 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
    • G03B7/22—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with temperature or height, e.g. in aircraft
    • 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
    • H10F99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
NL258177D 1959-11-25 NL258177A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA33364A DE1155201B (de) 1959-11-25 1959-11-25 Lichtempfaenger, insbesondere fuer fotografischen Zwecken dienende Belichtungsregleroder Belichtungsmesser

Publications (1)

Publication Number Publication Date
NL258177A true NL258177A (xx)

Family

ID=6928133

Family Applications (1)

Application Number Title Priority Date Filing Date
NL258177D NL258177A (xx) 1959-11-25

Country Status (4)

Country Link
CH (1) CH381444A (xx)
DE (1) DE1155201B (xx)
GB (1) GB973341A (xx)
NL (1) NL258177A (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502891A (en) * 1967-03-22 1970-03-24 Bell Telephone Labor Inc Variable reflectance memory device
FR2540625A1 (fr) * 1983-02-04 1984-08-10 Somfy Capteur d'intensite lumineuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750797C (de) * 1942-08-11 1945-01-29 Photo- oder kinematographisches Aufnahmegeraet mit vorzugsweise selbsttaetiger Einregelung von Kameraeinstellorganen durch einen photoelektrischen Belichtungsmesser
DE1044298B (de) * 1952-04-29 1958-11-20 Standard Elektrik Lorenz Ag Photoelement
DE1027902B (de) * 1954-05-12 1958-04-10 Gossen & Co Gmbh P Fotoelektrischer Belichtungsmesser
DE1084565B (de) * 1958-03-14 1960-06-30 Gossen & Co Gmbh P Fotoelektrischer Belichtungsregler

Also Published As

Publication number Publication date
GB973341A (en) 1964-10-21
DE1155201B (de) 1963-10-03
CH381444A (de) 1964-08-31

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