LU63942A1 - - Google Patents
Info
- Publication number
- LU63942A1 LU63942A1 LU63942DA LU63942A1 LU 63942 A1 LU63942 A1 LU 63942A1 LU 63942D A LU63942D A LU 63942DA LU 63942 A1 LU63942 A1 LU 63942A1
- Authority
- LU
- Luxembourg
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7034466A FR2106761A5 (en) | 1970-09-23 | 1970-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU63942A1 true LU63942A1 (en) | 1972-07-26 |
Family
ID=9061739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU63942D LU63942A1 (en) | 1970-09-23 | 1971-09-23 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE772499A (en) |
| CH (1) | CH533831A (en) |
| DE (1) | DE2144927A1 (en) |
| FR (1) | FR2106761A5 (en) |
| GB (1) | GB1323807A (en) |
| LU (1) | LU63942A1 (en) |
| NL (1) | NL7112279A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2704565A1 (en) * | 1977-02-03 | 1978-08-10 | Sick Optik Elektronik Erwin | PHOTOELECTRONIC DEVICE |
| EP0010110A1 (en) * | 1978-10-25 | 1980-04-30 | Ituo Shibata | Defect detecting device |
| EP3261131B1 (en) * | 2016-06-21 | 2022-06-22 | Nokia Technologies Oy | An apparatus for sensing electromagnetic radiation |
-
1970
- 1970-09-23 FR FR7034466A patent/FR2106761A5/fr not_active Expired
-
1971
- 1971-09-07 NL NL7112279A patent/NL7112279A/xx unknown
- 1971-09-08 DE DE19712144927 patent/DE2144927A1/en active Pending
- 1971-09-10 CH CH1329771A patent/CH533831A/en not_active IP Right Cessation
- 1971-09-13 BE BE772499A patent/BE772499A/en unknown
- 1971-09-23 LU LU63942D patent/LU63942A1/xx unknown
- 1971-09-23 GB GB4432871A patent/GB1323807A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1323807A (en) | 1973-07-18 |
| NL7112279A (en) | 1972-03-27 |
| DE2144927A1 (en) | 1972-03-30 |
| CH533831A (en) | 1973-02-15 |
| BE772499A (en) | 1972-03-13 |
| FR2106761A5 (en) | 1972-05-05 |