FR1027298A - Colorimètre photo-électrique - Google Patents
Colorimètre photo-électriqueInfo
- Publication number
- FR1027298A FR1027298A FR1027298DA FR1027298A FR 1027298 A FR1027298 A FR 1027298A FR 1027298D A FR1027298D A FR 1027298DA FR 1027298 A FR1027298 A FR 1027298A
- Authority
- FR
- France
- Prior art keywords
- photoelectric colorimeter
- colorimeter
- photoelectric
- 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
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1027298X | 1949-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1027298A true FR1027298A (fr) | 1953-05-11 |
Family
ID=4553464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1027298D Expired FR1027298A (fr) | 1949-12-07 | 1950-11-07 | Colorimètre photo-électrique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1027298A (fr) |
-
1950
- 1950-11-07 FR FR1027298D patent/FR1027298A/fr not_active Expired
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