NL138865B - Vergelijkingsfotometer. - Google Patents
Vergelijkingsfotometer.Info
- Publication number
- NL138865B NL138865B NL656514723A NL6514723A NL138865B NL 138865 B NL138865 B NL 138865B NL 656514723 A NL656514723 A NL 656514723A NL 6514723 A NL6514723 A NL 6514723A NL 138865 B NL138865 B NL 138865B
- Authority
- NL
- Netherlands
- Prior art keywords
- comparison photometer
- photometer
- comparison
- Prior art date
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
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
- G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US410977A US3413066A (en) | 1964-11-13 | 1964-11-13 | Comparison photometer and target therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6514723A NL6514723A (nl) | 1966-05-16 |
NL138865B true NL138865B (nl) | 1973-05-15 |
Family
ID=23627044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL656514723A NL138865B (nl) | 1964-11-13 | 1965-11-12 | Vergelijkingsfotometer. |
Country Status (7)
Country | Link |
---|---|
US (1) | US3413066A (nl) |
BE (1) | BE672396A (nl) |
CH (1) | CH525478A (nl) |
DE (1) | DE1299904B (nl) |
GB (1) | GB1130402A (nl) |
NL (1) | NL138865B (nl) |
SE (1) | SE344820B (nl) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3591295A (en) * | 1969-02-05 | 1971-07-06 | Itek Corp | Exposure selector for a printer |
US4582427A (en) * | 1983-10-13 | 1986-04-15 | The United States Of America As Represented By The Secretary Of The Air Force | Test target for adaptive optics |
US5089941A (en) * | 1990-09-06 | 1992-02-18 | The United States Of America As Represented By The Secretary Of The Navy | Flux containment device |
US5371538A (en) * | 1992-07-30 | 1994-12-06 | Eastman Kodak Company | Method for adjusting the pedestal of an electronic imaging system |
WO2019134841A1 (en) * | 2018-01-02 | 2019-07-11 | Signify Holding B.V. | Light melanopic activity indicator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3323430A (en) * | 1964-04-13 | 1967-06-06 | Polaroid Corp | Nonuniformly illuminated comparison photometer |
US3323431A (en) * | 1964-04-13 | 1967-06-06 | Polaroid Corp | Comparison photometer |
-
0
- BE BE672396D patent/BE672396A/xx unknown
-
1964
- 1964-11-13 US US410977A patent/US3413066A/en not_active Expired - Lifetime
-
1965
- 1965-11-09 GB GB47501/65D patent/GB1130402A/en not_active Expired
- 1965-11-12 SE SE14628/65A patent/SE344820B/xx unknown
- 1965-11-12 CH CH1563265A patent/CH525478A/de not_active IP Right Cessation
- 1965-11-12 DE DEJ29378A patent/DE1299904B/de not_active Withdrawn
- 1965-11-12 NL NL656514723A patent/NL138865B/nl unknown
Also Published As
Publication number | Publication date |
---|---|
US3413066A (en) | 1968-11-26 |
GB1130402A (en) | 1968-10-16 |
BE672396A (nl) | |
DE1299904B (de) | 1969-07-24 |
NL6514723A (nl) | 1966-05-16 |
CH525478A (de) | 1972-07-15 |
SE344820B (nl) | 1972-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NZ80 | Patents of addition are not granted since law of 1.1.78 |
Ref document number: 134571 Country of ref document: NL Date of ref document: 19720616 Format of ref document f/p: P |
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V3 | Additional patents lapsed at the same time as the main patent |