IT1026758B - Dispositivo d interruzione della luce per strumenti fotografici di musura - Google Patents

Dispositivo d interruzione della luce per strumenti fotografici di musura

Info

Publication number
IT1026758B
IT1026758B IT30140/74A IT3014074A IT1026758B IT 1026758 B IT1026758 B IT 1026758B IT 30140/74 A IT30140/74 A IT 30140/74A IT 3014074 A IT3014074 A IT 3014074A IT 1026758 B IT1026758 B IT 1026758B
Authority
IT
Italy
Prior art keywords
musure
interruption device
light interruption
photographic instruments
photographic
Prior art date
Application number
IT30140/74A
Other languages
English (en)
Italian (it)
Original Assignee
Hartmann & Braun Ag
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 Hartmann & Braun Ag filed Critical Hartmann & Braun Ag
Application granted granted Critical
Publication of IT1026758B publication Critical patent/IT1026758B/it

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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/34—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker
    • G01J1/36—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Diaphragms For Cameras (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
IT30140/74A 1974-01-22 1974-12-03 Dispositivo d interruzione della luce per strumenti fotografici di musura IT1026758B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2402865A DE2402865C2 (de) 1974-01-22 1974-01-22 Lichtunterbrechungsvorrichtung für photometrische Meßgeräte

Publications (1)

Publication Number Publication Date
IT1026758B true IT1026758B (it) 1978-10-20

Family

ID=5905361

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30140/74A IT1026758B (it) 1974-01-22 1974-12-03 Dispositivo d interruzione della luce per strumenti fotografici di musura

Country Status (6)

Country Link
US (1) US3970372A (en, 2012)
JP (1) JPS50104978A (en, 2012)
DE (1) DE2402865C2 (en, 2012)
FR (1) FR2258621B3 (en, 2012)
GB (1) GB1447342A (en, 2012)
IT (1) IT1026758B (en, 2012)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723177C2 (de) * 1987-07-14 1996-08-22 Fisher Rosemount Gmbh & Co Ges Strahlungs-Zerhackereinrichtung
DE8902686U1 (de) * 1989-03-06 1990-04-05 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur Strahlmodulation im Strahlengang photometrischer Analysatoren
RU2455171C1 (ru) * 2011-03-11 2012-07-10 Николай Петрович Дядченко Колесо транспортного средства
RU2564266C1 (ru) * 2014-09-09 2015-09-27 Николай Петрович Дядченко Колесо транспортного средства

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166382A1 (de) * 1970-07-04 1974-04-11 Horiba Ltd Einrichtung zum abgleich der strahlungsintensitaet bei optischen messvorrichtungen
US3729264A (en) * 1971-08-09 1973-04-24 Horiba Ltd Analyzer using the rotor of a motor as a light chopper

Also Published As

Publication number Publication date
DE2402865C2 (de) 1983-03-24
US3970372A (en) 1976-07-20
DE2402865A1 (de) 1975-07-24
JPS50104978A (en, 2012) 1975-08-19
FR2258621B3 (en, 2012) 1976-12-10
GB1447342A (en) 1976-08-25
FR2258621A1 (en, 2012) 1975-08-18

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