FR897728A - Opacimètre - Google Patents
OpacimètreInfo
- Publication number
- FR897728A FR897728A FR897728DA FR897728A FR 897728 A FR897728 A FR 897728A FR 897728D A FR897728D A FR 897728DA FR 897728 A FR897728 A FR 897728A
- Authority
- FR
- France
- Prior art keywords
- opacimeter
- 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
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
- G01J1/20—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE897728X | 1942-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR897728A true FR897728A (fr) | 1945-03-29 |
Family
ID=6848819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR897728D Expired FR897728A (fr) | 1942-09-30 | 1943-08-31 | Opacimètre |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR897728A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171909A (en) * | 1977-03-25 | 1979-10-23 | Miles Laboratories, Inc. | Apparatus for measuring light intensities |
-
1943
- 1943-08-31 FR FR897728D patent/FR897728A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171909A (en) * | 1977-03-25 | 1979-10-23 | Miles Laboratories, Inc. | Apparatus for measuring light intensities |
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