FR897962A - Photomètre visuel, en particulier posemètre - Google Patents
Photomètre visuel, en particulier posemètreInfo
- Publication number
- FR897962A FR897962A FR897962DA FR897962A FR 897962 A FR897962 A FR 897962A FR 897962D A FR897962D A FR 897962DA FR 897962 A FR897962 A FR 897962A
- Authority
- FR
- France
- Prior art keywords
- photometer
- visual
- particular light
- light meter
- meter
- 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
- G01J1/02—Details
- G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE897962X | 1942-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR897962A true FR897962A (fr) | 1945-04-06 |
Family
ID=6848920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR897962D Expired FR897962A (fr) | 1942-10-19 | 1943-09-09 | Photomètre visuel, en particulier posemètre |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR897962A (fr) |
-
1943
- 1943-09-09 FR FR897962D patent/FR897962A/fr not_active Expired
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