FR927692A - Photographic and other exposure time adjustment device - Google Patents

Photographic and other exposure time adjustment device

Info

Publication number
FR927692A
FR927692A FR927692DA FR927692A FR 927692 A FR927692 A FR 927692A FR 927692D A FR927692D A FR 927692DA FR 927692 A FR927692 A FR 927692A
Authority
FR
France
Prior art keywords
photographic
exposure time
adjustment device
time adjustment
exposure
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)
Inventor
Arnold Graves
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.)
ALLTOOLS
Original Assignee
ALLTOOLS
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
Priority claimed from GB1141545A external-priority patent/GB593764A/en
Application filed by ALLTOOLS filed Critical ALLTOOLS
Application granted granted Critical
Publication of FR927692A publication Critical patent/FR927692A/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)
FR927692D 1945-05-04 1946-06-06 Photographic and other exposure time adjustment device Expired FR927692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1141545A GB593764A (en) 1945-05-04 1945-05-04 A new or improved exposure control system for photographic purposes

Publications (1)

Publication Number Publication Date
FR927692A true FR927692A (en) 1947-11-05

Family

ID=10728007

Family Applications (1)

Application Number Title Priority Date Filing Date
FR927692D Expired FR927692A (en) 1945-05-04 1946-06-06 Photographic and other exposure time adjustment device

Country Status (1)

Country Link
FR (1) FR927692A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942042C (en) * 1953-03-03 1956-04-26 Philips Nv Device for automatically measuring the most favorable exposure time when making X-ray images
DE965435C (en) * 1953-06-16 1957-06-06 Philips Nv Device for automatically ending the duration of an X-ray exposure
DE1051420B (en) * 1953-03-23 1959-02-26 Koch & Sterzel Kommanditgesell Device for the automatic determination of the exposure time of X-ray images
DE1279218B (en) * 1954-12-21 1968-10-03 Picker Corp Automatic exposure control for an X-ray apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942042C (en) * 1953-03-03 1956-04-26 Philips Nv Device for automatically measuring the most favorable exposure time when making X-ray images
DE1051420B (en) * 1953-03-23 1959-02-26 Koch & Sterzel Kommanditgesell Device for the automatic determination of the exposure time of X-ray images
DE965435C (en) * 1953-06-16 1957-06-06 Philips Nv Device for automatically ending the duration of an X-ray exposure
DE1279218B (en) * 1954-12-21 1968-10-03 Picker Corp Automatic exposure control for an X-ray apparatus

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