GB8405799D0 - Photocell - Google Patents
PhotocellInfo
- Publication number
- GB8405799D0 GB8405799D0 GB848405799A GB8405799A GB8405799D0 GB 8405799 D0 GB8405799 D0 GB 8405799D0 GB 848405799 A GB848405799 A GB 848405799A GB 8405799 A GB8405799 A GB 8405799A GB 8405799 D0 GB8405799 D0 GB 8405799D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- photocell
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2632—Circuits therefor for testing diodes
- G01R31/2635—Testing light-emitting diodes, laser diodes or photodiodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electronic Switches (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08405799A GB2155620B (en) | 1984-03-06 | 1984-03-06 | Photocell & method for calibration thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08405799A GB2155620B (en) | 1984-03-06 | 1984-03-06 | Photocell & method for calibration thereof |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8405799D0 true GB8405799D0 (en) | 1984-04-11 |
GB2155620A GB2155620A (en) | 1985-09-25 |
GB2155620B GB2155620B (en) | 1988-02-24 |
Family
ID=10557637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08405799A Expired GB2155620B (en) | 1984-03-06 | 1984-03-06 | Photocell & method for calibration thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2155620B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9305687D0 (en) * | 1993-03-19 | 1993-05-05 | Renishaw Metrology Ltd | A signal processing for trigger probe |
GB9415338D0 (en) * | 1994-07-29 | 1994-09-21 | Renishaw Plc | Trigger probe circuit |
DE19606674B4 (en) * | 1996-02-22 | 2004-05-13 | Siemens Ag | Procedure for controlling the lighting of a room |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE348315B (en) * | 1969-02-18 | 1972-08-28 | S Rydborn | |
GB1567306A (en) * | 1976-01-05 | 1980-05-14 | Chilvers G | Light activated control system |
GB2097918B (en) * | 1981-05-06 | 1984-10-17 | Duport Ltd | Controlling lighting system |
GB2107859B (en) * | 1981-10-15 | 1985-01-30 | John Martin Warrington | Night light activator |
JPS58143226A (en) * | 1982-02-19 | 1983-08-25 | Terumo Corp | Electronic clinical thermometer |
-
1984
- 1984-03-06 GB GB08405799A patent/GB2155620B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2155620A (en) | 1985-09-25 |
GB2155620B (en) | 1988-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940306 |