FR947435A - Automatic exposure time control device - Google Patents

Automatic exposure time control device

Info

Publication number
FR947435A
FR947435A FR947435DA FR947435A FR 947435 A FR947435 A FR 947435A FR 947435D A FR947435D A FR 947435DA FR 947435 A FR947435 A FR 947435A
Authority
FR
France
Prior art keywords
control device
exposure time
time control
automatic exposure
automatic
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of FR947435A publication Critical patent/FR947435A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05G1/44—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 in which the switching instant is determined by measuring the amount of radiation directly

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
FR947435D 1946-06-01 1947-05-31 Automatic exposure time control device Expired FR947435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US673748A US2561085A (en) 1946-06-01 1946-06-01 Automatic exposure timer

Publications (1)

Publication Number Publication Date
FR947435A true FR947435A (en) 1949-07-01

Family

ID=24703973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR947435D Expired FR947435A (en) 1946-06-01 1947-05-31 Automatic exposure time control device

Country Status (3)

Country Link
US (1) US2561085A (en)
FR (1) FR947435A (en)
GB (1) GB633775A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010657B (en) * 1953-07-14 1957-06-19 Gen Electric Circuit arrangement for operating a Roentgen tube
DE1020126B (en) * 1954-10-20 1957-11-28 Koch & Sterzel Ag Device for the automatic determination and preferably also the limitation of the exposure time of X-ray exposures

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE513475A (en) * 1951-08-16 1952-08-30 Westinghouse Electric Corp photographic timer for image intensifier
BE530458A (en) * 1953-07-17
US2813204A (en) * 1954-06-17 1957-11-12 Keleket X Ray Corp X-ray apparatus
US2972681A (en) * 1956-08-10 1961-02-21 Westinghouse Electric Corp Cinefluorographic apparatus
US6448544B1 (en) * 1998-06-08 2002-09-10 Brandeis University Low noise, high resolution image detection system and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136116A (en) * 1934-01-04 1938-11-08 Kelley Koett Mfg Company Integrating x-ray apparatus
US2252530A (en) * 1940-09-06 1941-08-12 Ferranti Electric Ltd X-ray timing apparatus
US2353980A (en) * 1942-07-04 1944-07-18 Westinghouse Electric & Mfg Co Milliampere seconds timer
US2401289A (en) * 1943-07-22 1946-05-28 Nasa Photoelectric timer for roentgen photography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010657B (en) * 1953-07-14 1957-06-19 Gen Electric Circuit arrangement for operating a Roentgen tube
DE1020126B (en) * 1954-10-20 1957-11-28 Koch & Sterzel Ag Device for the automatic determination and preferably also the limitation of the exposure time of X-ray exposures

Also Published As

Publication number Publication date
GB633775A (en) 1949-12-30
US2561085A (en) 1951-07-17

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