SE8401912D0 - Forfarande och anordning for metning av effekten hos infallande ljus - Google Patents
Forfarande och anordning for metning av effekten hos infallande ljusInfo
- Publication number
- SE8401912D0 SE8401912D0 SE8401912A SE8401912A SE8401912D0 SE 8401912 D0 SE8401912 D0 SE 8401912D0 SE 8401912 A SE8401912 A SE 8401912A SE 8401912 A SE8401912 A SE 8401912A SE 8401912 D0 SE8401912 D0 SE 8401912D0
- Authority
- SE
- Sweden
- Prior art keywords
- light
- power
- converter
- frequency
- seating
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000013307 optical fiber Substances 0.000 abstract 1
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
- G01J1/44—Electric circuits
- G01J1/46—Electric circuits using a capacitor
-
- 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
- G01J1/44—Electric circuits
- G01J2001/4413—Type
- G01J2001/4426—Type with intensity to frequency or voltage to frequency conversion [IFC or VFC]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8401912A SE441867B (sv) | 1984-04-05 | 1984-04-05 | Forfarande och anordning for metning av effekten hos infallande ljus |
US06/712,625 US4643568A (en) | 1984-04-05 | 1985-03-18 | Method and apparatus for measuring the illuminating power of incident light |
GB8507209A GB2158979A (en) | 1984-03-21 | 1985-03-20 | Alarm equipment |
GB08507206A GB2156975B (en) | 1984-04-05 | 1985-03-20 | Method and apparatus for measuring the illuminating power of incident light |
DE19853511376 DE3511376A1 (de) | 1984-04-05 | 1985-03-28 | Verfahren und vorrichtung zur messung der beleuchtungsstaerke von einfallendem licht |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8401912A SE441867B (sv) | 1984-04-05 | 1984-04-05 | Forfarande och anordning for metning av effekten hos infallande ljus |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8401912D0 true SE8401912D0 (sv) | 1984-04-05 |
SE8401912L SE8401912L (sv) | 1985-10-06 |
SE441867B SE441867B (sv) | 1985-11-11 |
Family
ID=20355478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8401912A SE441867B (sv) | 1984-03-21 | 1984-04-05 | Forfarande och anordning for metning av effekten hos infallande ljus |
Country Status (4)
Country | Link |
---|---|
US (1) | US4643568A (sv) |
DE (1) | DE3511376A1 (sv) |
GB (1) | GB2156975B (sv) |
SE (1) | SE441867B (sv) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0720834A (ja) * | 1992-03-23 | 1995-01-24 | Eastman Kodak Co | Crtキャリブレータユニット |
DE9313731U1 (de) * | 1993-09-10 | 1993-12-16 | Anetseder, Leopold, 82319 Starnberg | Tragbares elektronisches Gerät |
US5534996A (en) * | 1993-09-21 | 1996-07-09 | Advantest Corporation | Measurement apparatus for evaluating characteristics of light emitting devices |
US5528409A (en) * | 1994-10-13 | 1996-06-18 | Nt International, Inc. | Fiber-optic interface system |
US5805277A (en) * | 1997-08-06 | 1998-09-08 | Coherent, Inc. | Portable laser power measuring apparatus |
GB2332270A (en) * | 1997-12-10 | 1999-06-16 | Mars Inc | Charge storage photoelectric measurement |
US6163377A (en) * | 1999-07-23 | 2000-12-19 | Cv Us, Inc. | Colorimeter |
DE60227183D1 (de) * | 2001-09-21 | 2008-07-31 | Datacolor Holding Ag | Farbmesser |
TW201130208A (en) * | 2009-09-30 | 2011-09-01 | Issc Technologies Corp | Wireless communication module |
WO2015006656A2 (en) * | 2013-07-11 | 2015-01-15 | Goodlux Technology, Llc | Integrative light-powered light-monitoring system |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2862416A (en) * | 1954-06-09 | 1958-12-02 | Gen Electric | Light intensity measuring device including semiconductor translating circuit |
GB1007081A (en) * | 1964-05-14 | 1965-10-13 | John Ingle Yellott | Solar radiation measuring device |
GB1531263A (en) * | 1975-10-24 | 1978-11-08 | Xerox Corp | Optoelectronic device |
CH593483A5 (sv) * | 1976-05-04 | 1977-12-15 | Pignons Sa | |
DE2647109C3 (de) * | 1976-10-28 | 1984-04-05 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Verfahren und Vorrichtung zur Dämpfungsmessung an Lichtleitfasern |
US4264962A (en) * | 1978-02-07 | 1981-04-28 | Beam Engineering Kabushiki Kaisha | Small-sized electronic calculator |
US4249109A (en) * | 1979-01-04 | 1981-02-03 | Rollei Of America, Inc. | Light digitizing circuit for an electronic flash device |
JPS5690226A (en) * | 1979-12-25 | 1981-07-22 | Olympus Optical Co Ltd | Photoelectric conversion circuit |
DE3049262C2 (de) * | 1980-12-27 | 1986-08-21 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Absolute Längen- oder Winkelmeßeinrichtung |
US4423963A (en) * | 1981-09-18 | 1984-01-03 | Citizen Watch Company Limited | Electronic timepiece having illumination level |
JPS5951338A (ja) * | 1982-09-17 | 1984-03-24 | Horiba Ltd | 光フアイバ−結合型イオン濃度測定装置 |
US4564770A (en) * | 1983-03-29 | 1986-01-14 | Rca Corporation | Solid state relay with fast turnoff |
US4549149A (en) * | 1983-04-08 | 1985-10-22 | Warner-Lambert Technologies, Inc. | Current to frequency converter switched to increased frequency when current input low |
-
1984
- 1984-04-05 SE SE8401912A patent/SE441867B/sv not_active IP Right Cessation
-
1985
- 1985-03-18 US US06/712,625 patent/US4643568A/en not_active Expired - Lifetime
- 1985-03-20 GB GB08507206A patent/GB2156975B/en not_active Expired
- 1985-03-28 DE DE19853511376 patent/DE3511376A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
SE8401912L (sv) | 1985-10-06 |
SE441867B (sv) | 1985-11-11 |
DE3511376A1 (de) | 1985-10-24 |
GB2156975B (en) | 1988-05-25 |
GB2156975A (en) | 1985-10-16 |
US4643568A (en) | 1987-02-17 |
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