BE660472A - - Google Patents
Info
- Publication number
- BE660472A BE660472A BE660472DA BE660472A BE 660472 A BE660472 A BE 660472A BE 660472D A BE660472D A BE 660472DA BE 660472 A BE660472 A BE 660472A
- Authority
- BE
- Belgium
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
- G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1964L0047179 DE1272977B (de) | 1964-03-02 | 1964-03-02 | Schaltungsanordnung zur Umformung kurzzeitiger Lichtimpulse in elektrische Signale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE660472A true BE660472A (US07943777-20110517-C00090.png) | 1965-07-01 |
Family
ID=7271914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE660472D BE660472A (US07943777-20110517-C00090.png) | 1964-03-02 | 1965-03-02 |
Country Status (5)
-
1964
- 1964-03-02 DE DE1964L0047179 patent/DE1272977B/de active Pending
-
1965
- 1965-03-01 GB GB858665A patent/GB1092853A/en not_active Expired
- 1965-03-01 FR FR7492A patent/FR87524E/fr not_active Expired
- 1965-03-02 NL NL6502641A patent/NL6502641A/xx unknown
- 1965-03-02 BE BE660472D patent/BE660472A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1092853A (en) | 1967-11-29 |
| NL6502641A (US07943777-20110517-C00090.png) | 1965-09-03 |
| FR87524E (fr) | 1966-06-24 |
| DE1272977B (de) | 1968-07-18 |
