NL270378A - - Google Patents

Info

Publication number
NL270378A
NL270378A NL270378DA NL270378A NL 270378 A NL270378 A NL 270378A NL 270378D A NL270378D A NL 270378DA NL 270378 A NL270378 A NL 270378A
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 NL270378A publication Critical patent/NL270378A/xx

Links

Classifications

    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/288—Modifications for introducing a time delay before switching in tube switches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/38—Exposure time
    • H05G1/42—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
NL270378D 1960-10-28 NL270378A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA35907A DE1146366B (de) 1960-10-28 1960-10-28 Zeitschaltvorrichtung fuer fotografische Geraete

Publications (1)

Publication Number Publication Date
NL270378A true NL270378A (de)

Family

ID=6929312

Family Applications (1)

Application Number Title Priority Date Filing Date
NL270378D NL270378A (de) 1960-10-28

Country Status (5)

Country Link
US (1) US3166674A (de)
BE (1) BE609699A (de)
DE (1) DE1146366B (de)
GB (1) GB949517A (de)
NL (1) NL270378A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104040891A (zh) * 2012-01-12 2014-09-10 沃拉克有限公司 用于响应于机械力生成电信号的方法和开关装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078677A (en) * 1932-10-19 1937-04-27 Westinghouse Electric & Mfg Co Lighting control
US2353979A (en) * 1942-07-04 1944-07-18 Westinghouse Electric & Mfg Co Measuring system
US2472815A (en) * 1946-08-23 1949-06-14 William D Fleming Automatic light control
BE513475A (fr) * 1951-08-16 1952-08-30 Westinghouse Electric Corp minuterie photographique pour intensificateur d'image
US2929000A (en) * 1953-06-29 1960-03-15 Gen Electric Means for and method of interval timing
US2749799A (en) * 1953-08-13 1956-06-12 Strem Thomas Photographic exposure timing device
US2885563A (en) * 1954-10-05 1959-05-05 W M Welch Mfg Company Photographic exposure timer
US3033988A (en) * 1957-04-05 1962-05-08 Edgerton Germeshausen & Grier Method of and apparatus for the control of electric impulses
US2993124A (en) * 1959-02-02 1961-07-18 Gen Electric Timing apparatus

Also Published As

Publication number Publication date
BE609699A (fr) 1962-02-15
DE1146366B (de) 1963-03-28
US3166674A (en) 1965-01-19
GB949517A (en) 1964-02-12

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