SE330783B - - Google Patents

Info

Publication number
SE330783B
SE330783B SE480865A SE480865A SE330783B SE 330783 B SE330783 B SE 330783B SE 480865 A SE480865 A SE 480865A SE 480865 A SE480865 A SE 480865A SE 330783 B SE330783 B SE 330783B
Authority
SE
Sweden
Application number
SE480865A
Inventor
E Land
D Cooper
Original Assignee
Polaroid 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
Priority claimed from US359115A external-priority patent/US3323430A/en
Priority claimed from US359113A external-priority patent/US3368447A/en
Priority claimed from US359109A external-priority patent/US3416866A/en
Priority claimed from US359116A external-priority patent/US3323431A/en
Application filed by Polaroid Corp filed Critical Polaroid Corp
Publication of SE330783B publication Critical patent/SE330783B/xx

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
    • G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
    • G01J1/122—Visual exposure meters for determining the exposure time in photographical recording or reproducing
    • G01J1/124—Visual exposure meters for determining the exposure time in photographical recording or reproducing based on the comparison of the intensity of measured light with a comparison source or comparison illuminated surface
    • 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
    • G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
SE480865A 1964-04-13 1965-04-13 SE330783B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US359115A US3323430A (en) 1964-04-13 1964-04-13 Nonuniformly illuminated comparison photometer
US359113A US3368447A (en) 1964-04-13 1964-04-13 Comparison photometer using reflective pattern
US359109A US3416866A (en) 1964-04-13 1964-04-13 Comparison photometer using lenticular screen
US359116A US3323431A (en) 1964-04-13 1964-04-13 Comparison photometer

Publications (1)

Publication Number Publication Date
SE330783B true SE330783B (en) 1970-11-30

Family

ID=27502921

Family Applications (4)

Application Number Title Priority Date Filing Date
SE480765A SE330782B (en) 1964-04-13 1965-04-13
SE480565A SE315137B (en) 1964-04-13 1965-04-13
SE480665A SE330096B (en) 1964-04-13 1965-04-13
SE480865A SE330783B (en) 1964-04-13 1965-04-13

Family Applications Before (3)

Application Number Title Priority Date Filing Date
SE480765A SE330782B (en) 1964-04-13 1965-04-13
SE480565A SE315137B (en) 1964-04-13 1965-04-13
SE480665A SE330096B (en) 1964-04-13 1965-04-13

Country Status (7)

Country Link
AT (5) AT294453B (en)
BE (4) BE662399A (en)
CH (4) CH469247A (en)
DE (4) DE1260179B (en)
GB (1) GB1100260A (en)
NL (4) NL6504656A (en)
SE (4) SE330782B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE722965C (en) * 1937-11-06 1942-07-24 Dr Hans E J Neugebauer Method for comparing brightnesses
DE1104726B (en) * 1957-02-23 1961-04-13 Leitz Ernst Gmbh Light meters for photographic or cinematographic purposes
DE1166500B (en) * 1959-08-01 1964-03-26 Zeiss Ikon Ag Photoelectric light meter with light beam limiter
FR1268730A (en) * 1960-09-14 1961-08-04 Reichert Optische Werke Ag Visual photometric method for heterochromic photometry and apparatus for carrying out this method

Also Published As

Publication number Publication date
BE662443A (en) 1965-10-13
DE1291914B (en) 1969-04-03
AT294452B (en) 1971-11-25
NL6504698A (en) 1965-10-14
BE662444A (en) 1965-10-13
SE330782B (en) 1970-11-30
BE662399A (en) 1965-10-12
SE330096B (en) 1970-11-02
SE315137B (en) 1969-09-22
DE1273854B (en) 1968-07-25
CH497693A (en) 1970-10-15
CH497692A (en) 1970-10-15
NL6504697A (en) 1965-10-14
AT314864B (en) 1974-04-25
AT287342B (en) 1971-01-25
CH469247A (en) 1969-02-28
DE1260179B (en) 1968-02-01
NL6504696A (en) 1965-10-14
NL6504656A (en) 1965-10-14
AT294453B (en) 1971-11-25
GB1100260A (en) 1968-01-24
CH522212A (en) 1972-06-15
DE1297887B (en) 1969-06-19
AT314863B (en) 1974-04-25
BE662442A (en) 1965-10-13

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