CH522219A - Densitometer - Google Patents

Densitometer

Info

Publication number
CH522219A
CH522219A CH488670A CH488670A CH522219A CH 522219 A CH522219 A CH 522219A CH 488670 A CH488670 A CH 488670A CH 488670 A CH488670 A CH 488670A CH 522219 A CH522219 A CH 522219A
Authority
CH
Switzerland
Prior art keywords
densitometer
Prior art date
Application number
CH488670A
Other languages
English (en)
Inventor
Antonio Dipl Phys Abbondio
Original Assignee
Ciba Geigy 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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Priority to CH488670A priority Critical patent/CH522219A/de
Priority to CA108913A priority patent/CA932550A/en
Priority to US00129540A priority patent/US3711208A/en
Priority to SE04185/71A priority patent/SE358236B/xx
Priority to BE765128A priority patent/BE765128A/xx
Priority to DE19712116035 priority patent/DE2116035A1/de
Priority to FR7111609A priority patent/FR2089058A5/fr
Priority to GB2612971*A priority patent/GB1327709A/en
Publication of CH522219A publication Critical patent/CH522219A/de

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
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • 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
    • G01J1/22—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 a variable element in the light-path, e.g. filter, polarising means
    • G01J1/24—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 a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors
CH488670A 1970-04-02 1970-04-02 Densitometer CH522219A (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH488670A CH522219A (de) 1970-04-02 1970-04-02 Densitometer
CA108913A CA932550A (en) 1970-04-02 1971-03-29 Densitometer
US00129540A US3711208A (en) 1970-04-02 1971-03-30 Double beam optical densitometer
SE04185/71A SE358236B (de) 1970-04-02 1971-03-31
BE765128A BE765128A (fr) 1970-04-02 1971-04-01 Densitometre
DE19712116035 DE2116035A1 (de) 1970-04-02 1971-04-01 Densitometer
FR7111609A FR2089058A5 (de) 1970-04-02 1971-04-01
GB2612971*A GB1327709A (en) 1970-04-02 1971-04-19 Densitometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH488670A CH522219A (de) 1970-04-02 1970-04-02 Densitometer

Publications (1)

Publication Number Publication Date
CH522219A true CH522219A (de) 1972-06-15

Family

ID=4284253

Family Applications (1)

Application Number Title Priority Date Filing Date
CH488670A CH522219A (de) 1970-04-02 1970-04-02 Densitometer

Country Status (8)

Country Link
US (1) US3711208A (de)
BE (1) BE765128A (de)
CA (1) CA932550A (de)
CH (1) CH522219A (de)
DE (1) DE2116035A1 (de)
FR (1) FR2089058A5 (de)
GB (1) GB1327709A (de)
SE (1) SE358236B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1434304A (en) * 1973-05-16 1976-05-05 Ciba Geigy Ag Optical apparatus
FR2455751A1 (fr) * 1979-05-02 1980-11-28 Thomson Csf Systeme recepteur optoelectrique multispectral a haute dynamique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146904A (en) * 1936-05-07 1939-02-14 Eastman Kodak Co Reflection and transmission densitometer
FR1356426A (fr) * 1963-02-14 1964-03-27 Compteurs Comp D Perfectionnements aux dispositifs de comparaison de flux lumineux
US3528749A (en) * 1966-12-09 1970-09-15 Itek Corp Apparatus for measuring optical density
US3623817A (en) * 1970-02-24 1971-11-30 Ciba Ltd Comparison densitometer including means to maintain the detector output at a means valve
US3600099A (en) * 1970-04-07 1971-08-17 Schoeffel Instrument Corp Thin layer chromatographic apparatus for comparing a sample and a reference

Also Published As

Publication number Publication date
GB1327709A (en) 1973-08-22
SE358236B (de) 1973-07-23
US3711208A (en) 1973-01-16
DE2116035A1 (de) 1971-10-14
CA932550A (en) 1973-08-28
BE765128A (fr) 1971-10-01
FR2089058A5 (de) 1972-01-07

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Legal Events

Date Code Title Description
PL Patent ceased