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
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
NL258177D 1959-11-25 NL258177A (el)

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 (el)

Family

ID=6928133

Family Applications (1)

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

Country Status (4)

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

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
CH381444A (de) 1964-08-31
DE1155201B (de) 1963-10-03

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