CH469247A - Comparison photometer - Google Patents

Comparison photometer

Info

Publication number: CH469247A
Authority: CH; Switzerland
Prior art keywords: comparison photometer; photometer; comparison
Prior art date: 1964-04-13

Application number

CH500265A

Other languages

German (de)

Inventor

Herbert Land Edwin

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.)

1964-04-13

Filing date

1965-04-09

Publication date

1969-02-28

1964-04-13 Priority claimed from US359113A external-priority patent/US3368447A/en

1964-04-13 Priority claimed from US359116A external-priority patent/US3323431A/en

1964-04-13 Priority claimed from US359109A external-priority patent/US3416866A/en

1964-04-13 Priority claimed from US359115A external-priority patent/US3323430A/en

1965-04-09 Application filed by Polaroid Corp filed Critical Polaroid Corp

1969-02-28 Publication of CH469247A publication Critical patent/CH469247A/en

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

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Illuminated Signs And Luminous Advertising (AREA)
Stroboscope Apparatuses (AREA)
Stereoscopic And Panoramic Photography (AREA)
Overhead Projectors And Projection Screens (AREA)

CH500265A 1964-04-13 1965-04-09 Comparison photometer CH469247A (en)

Applications Claiming Priority (4)

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

Publications (1)

Publication Number	Publication Date
CH469247A true CH469247A (en)	1969-02-28

Family

ID=27502921

Family Applications (4)

Application Number	Title	Priority Date	Filing Date
CH500665A CH497693A (en)	1964-04-13	1965-04-09	Comparison photometer
CH500265A CH469247A (en)	1964-04-13	1965-04-09	Comparison photometer
CH500465A CH522212A (en)	1964-04-13	1965-04-09	Comparison photometer
CH500365A CH497692A (en)	1964-04-13	1965-04-09	Comparison photometer

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
CH500665A CH497693A (en)	1964-04-13	1965-04-09	Comparison photometer

Family Applications After (2)

Application Number	Title	Priority Date	Filing Date
CH500465A CH522212A (en)	1964-04-13	1965-04-09	Comparison photometer
CH500365A CH497692A (en)	1964-04-13	1965-04-09	Comparison photometer

Country Status (7)

Country	Link
AT (5)	AT314863B (en)
BE (4)	BE662399A (en)
CH (4)	CH497693A (en)
DE (4)	DE1297887B (en)
GB (1)	GB1100260A (en)
NL (4)	NL6504696A (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

1965
- 1965-04-08 DE DE1965I0027872 patent/DE1297887B/en not_active Withdrawn
- 1965-04-08 DE DE1965J0027868 patent/DE1260179B/en not_active Withdrawn
- 1965-04-08 DE DE1965J0027871 patent/DE1273854B/en not_active Withdrawn
- 1965-04-08 DE DE1965I0027867 patent/DE1291914B/en not_active Withdrawn
- 1965-04-09 CH CH500665A patent/CH497693A/en not_active IP Right Cessation
- 1965-04-09 CH CH500265A patent/CH469247A/en unknown
- 1965-04-09 CH CH500465A patent/CH522212A/en not_active IP Right Cessation
- 1965-04-09 CH CH500365A patent/CH497692A/en not_active IP Right Cessation
- 1965-04-12 GB GB1548365A patent/GB1100260A/en not_active Expired
- 1965-04-12 BE BE662399D patent/BE662399A/xx unknown
- 1965-04-12 AT AT336865A patent/AT314863B/en not_active IP Right Cessation
- 1965-04-12 AT AT336765A patent/AT294452B/en not_active IP Right Cessation
- 1965-04-12 AT AT336665A patent/AT287342B/en not_active IP Right Cessation
- 1965-04-12 AT AT336965A patent/AT294453B/en not_active IP Right Cessation
- 1965-04-13 SE SE480765A patent/SE330782B/xx unknown
- 1965-04-13 SE SE480565A patent/SE315137B/xx unknown
- 1965-04-13 NL NL6504696A patent/NL6504696A/xx unknown
- 1965-04-13 SE SE480665A patent/SE330096B/xx unknown
- 1965-04-13 NL NL6504656A patent/NL6504656A/xx unknown
- 1965-04-13 NL NL6504698A patent/NL6504698A/xx unknown
- 1965-04-13 BE BE662443D patent/BE662443A/xx unknown
- 1965-04-13 NL NL6504697A patent/NL6504697A/xx unknown
- 1965-04-13 SE SE480865A patent/SE330783B/xx unknown
- 1965-04-13 BE BE662442D patent/BE662442A/xx unknown
- 1965-04-13 BE BE662444D patent/BE662444A/xx unknown
- 1965-11-11 AT AT1019865A patent/AT314864B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
BE662442A (en)	1965-10-13
NL6504696A (en)	1965-10-14
SE330783B (en)	1970-11-30
NL6504656A (en)	1965-10-14
CH497692A (en)	1970-10-15
BE662444A (en)	1965-10-13
NL6504698A (en)	1965-10-14
BE662399A (en)	1965-10-12
DE1260179B (en)	1968-02-01
SE330782B (en)	1970-11-30
AT287342B (en)	1971-01-25
BE662443A (en)	1965-10-13
DE1273854B (en)	1968-07-25
AT314864B (en)	1974-04-25
AT294452B (en)	1971-11-25
CH497693A (en)	1970-10-15
AT294453B (en)	1971-11-25
DE1291914B (en)	1969-04-03
NL6504697A (en)	1965-10-14
SE315137B (en)	1969-09-22
AT314863B (en)	1974-04-25
SE330096B (en)	1970-11-02
CH522212A (en)	1972-06-15
GB1100260A (en)	1968-01-24
DE1297887B (en)	1969-06-19

Publication	Publication Date	Title
AT259362B (en)	1968-01-10	Ever-ready case
CH428619A (en)	1967-01-31	Corselet
CH415257A (en)	1966-06-15	Kettledrum
BR6786870D0 (en)	1973-08-14	IMIDAZOIS
CH430310A (en)	1967-02-15	Baumschüttler
NL138865B (en)	1973-05-15	COMPARISON PHOTOMETER.
AT246952B (en)	1966-05-10	Stizbank
AT260598B (en)	1968-03-11	Haymaker
BE789491Q (en)	1973-01-15	ELLIPSOGRAPHER
CH463817A (en)	1968-10-15	Ophthalmometer
AT294453B (en)	1971-11-25	Comparison photometer
AT289179B (en)	1971-04-13	Leitblankenbahn
FI36997A (en)	1967-06-21	Vätskespridare
CH435586A (en)	1967-05-15	Tent-cot
BR6574623D0 (en)	1973-08-07	ACILLATE MYTHOSENES
FI36031A (en)	1966-07-11	Samlingsearm
ES103695Y (en)	1964-08-16	Compact-cigarette case
ES109025Y (en)	1965-03-16	Writing-case
ES105237Y (en)	1964-12-16	Sack-blanket
ES106525Y (en)	1964-12-01	Pourer-stopper
ES104850Y (en)	1964-12-16	Switch-switch
ES107218Y (en)	1964-12-16	Stamp-buffer
ES109601Y (en)	1965-05-01	Keychain-wallet
ES105039Y (en)	1964-12-16	Container-candle
ES104424Y (en)	1964-12-01	Nutbreaker