CH579269A5 - - Google Patents
Info
- Publication number
- CH579269A5 CH579269A5 CH72274A CH72274A CH579269A5 CH 579269 A5 CH579269 A5 CH 579269A5 CH 72274 A CH72274 A CH 72274A CH 72274 A CH72274 A CH 72274A CH 579269 A5 CH579269 A5 CH 579269A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00326495A US3811781A (en) | 1973-01-26 | 1973-01-26 | Multi-wavelength photometer employing a rotating variable wavelength filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH579269A5 true CH579269A5 (xx) | 1976-08-31 |
Family
ID=23272454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH72274A CH579269A5 (xx) | 1973-01-26 | 1974-01-18 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3811781A (xx) |
| JP (1) | JPS49111685A (xx) |
| CA (1) | CA987129A (xx) |
| CH (1) | CH579269A5 (xx) |
| DE (1) | DE2401829A1 (xx) |
| FR (1) | FR2215612B1 (xx) |
| GB (1) | GB1447824A (xx) |
| IT (1) | IT1002425B (xx) |
| NL (1) | NL7400847A (xx) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4984691A (xx) * | 1972-12-20 | 1974-08-14 | ||
| DE2430011C3 (de) * | 1974-06-22 | 1978-05-03 | Bayer Ag, 5090 Leverkusen | Zweistrahl-Photometer mit Interferenzfilter |
| US3967113A (en) * | 1974-12-05 | 1976-06-29 | Baxter Laboratories, Inc. | Wavelength-corrected spectrofluorometer |
| DE2530480A1 (de) * | 1975-07-09 | 1977-01-27 | Bayer Ag | Einstrahlphotometer |
| JPS5249873A (en) * | 1975-10-17 | 1977-04-21 | Oki Electric Ind Co Ltd | Chromaticity gradient analitical apparatus |
| US4131888A (en) * | 1976-08-18 | 1978-12-26 | American District Telegraph Company | Dual projected-beam smoke detector |
| US5166755A (en) * | 1990-05-23 | 1992-11-24 | Nahum Gat | Spectrometer apparatus |
| US5959738A (en) | 1994-07-25 | 1999-09-28 | Molecular Devices Corporation | Determination of light absorption pathlength in a vertical-beam photometer |
| US5519219A (en) * | 1994-09-08 | 1996-05-21 | Janos Technology Inc. | Portable filter infrared spectrometer |
| GB9704972D0 (en) * | 1997-03-11 | 1997-04-30 | Howard Foundation | Flicker photometer |
| US6496260B1 (en) * | 1998-12-23 | 2002-12-17 | Molecular Devices Corp. | Vertical-beam photometer for determination of light absorption pathlength |
| DE102008019500B4 (de) | 2007-09-20 | 2010-06-02 | Technische Universität München | Anorndnung, Verfahren und Sensor zur Erfassung von Flüssigkeitsparametern |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1338403A (fr) * | 1962-07-10 | 1963-09-27 | Commissariat Energie Atomique | Procédé de spectrophotométrie et dispositif en comportant application |
| GB1077501A (en) * | 1964-02-04 | 1967-08-02 | Nat Res Dev | Scanning spectrophotometer |
| US3449050A (en) * | 1965-04-29 | 1969-06-10 | Beckman Instruments Inc | Spectrophotometer |
| DE1939034C2 (de) * | 1969-07-31 | 1971-01-28 | Bio Cal Instr Gmbh | Photometer zum Durchfuehren von Messungen bei unterschiedlichen Wellenlaengen |
| FR2070481A5 (xx) * | 1969-12-05 | 1971-09-10 | Commissariat Energie Atomique |
-
1973
- 1973-01-26 US US00326495A patent/US3811781A/en not_active Expired - Lifetime
- 1973-12-17 CA CA188,270A patent/CA987129A/en not_active Expired
- 1973-12-28 IT IT32391/73A patent/IT1002425B/it active
-
1974
- 1974-01-04 GB GB34574A patent/GB1447824A/en not_active Expired
- 1974-01-10 JP JP49006319A patent/JPS49111685A/ja active Pending
- 1974-01-16 FR FR7401392A patent/FR2215612B1/fr not_active Expired
- 1974-01-16 DE DE2401829A patent/DE2401829A1/de active Pending
- 1974-01-18 CH CH72274A patent/CH579269A5/xx not_active IP Right Cessation
- 1974-01-22 NL NL7400847A patent/NL7400847A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2401829A1 (de) | 1974-08-01 |
| FR2215612A1 (xx) | 1974-08-23 |
| JPS49111685A (xx) | 1974-10-24 |
| GB1447824A (en) | 1976-09-02 |
| CA987129A (en) | 1976-04-13 |
| IT1002425B (it) | 1976-05-20 |
| NL7400847A (xx) | 1974-07-30 |
| US3811781A (en) | 1974-05-21 |
| FR2215612B1 (xx) | 1977-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |