GB1425971A - Dual beam optical system - Google Patents
Dual beam optical systemInfo
- Publication number
- GB1425971A GB1425971A GB1968373A GB1968373A GB1425971A GB 1425971 A GB1425971 A GB 1425971A GB 1968373 A GB1968373 A GB 1968373A GB 1968373 A GB1968373 A GB 1968373A GB 1425971 A GB1425971 A GB 1425971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- transmits
- green light
- absorbs
- filter element
- 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.)
- Expired
Links
- 230000009977 dual effect Effects 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
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
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
Landscapes
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Luminescent Compositions (AREA)
Abstract
1425971 Uses of luminescence INSTRUMENTATION SPECIALTIES CO 25 April 1973 [5 June 1972] 19683/73 Heading C4S [Also in Divisions F4 and G1] A filter for converting U.V. radiation to green light comprises a tubular casing 76 containing a quartz window 90, a light filtering liquid 88 which transmits light having a wavelength longer than 280 nm., a filter element 82 of red purple silica which transmits U.V. and absorbs green light, a fluorescent phosphor 86 which emits green light when irradiated with U.V. light having a wavelength in the range 280-290 nm., a filter element 84 which transmits green light and absorbs U.V. light, and a retaining ring 96. Further materials are disclosed, and also phosphors for a light intensity balancer (32), e.g. Fig. 3 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25986872A | 1972-06-05 | 1972-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1425971A true GB1425971A (en) | 1976-02-25 |
Family
ID=22986757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1968373A Expired GB1425971A (en) | 1972-06-05 | 1973-04-25 | Dual beam optical system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3783276A (en) |
| JP (1) | JPS5313137B2 (en) |
| CA (1) | CA996530A (en) |
| FR (1) | FR2188184B1 (en) |
| GB (1) | GB1425971A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3989948A (en) * | 1975-06-09 | 1976-11-02 | Instrumentation Specialties Company | Dual beam optical system |
| US4187013A (en) * | 1975-10-06 | 1980-02-05 | Hitachi, Ltd. | Phosphor screen exposure apparatus |
| DE3007982C2 (en) * | 1980-03-01 | 1983-09-29 | Eura-Dental Gmbh, 8070 Ingolstadt | Device for heating medical-technical tools |
| US4587463A (en) * | 1983-09-22 | 1986-05-06 | Isco, Inc. | Absorbance monitor |
| US4575424A (en) * | 1984-03-01 | 1986-03-11 | Isco, Inc. | Chromatographic flow cell and method of making it |
| DE69524405T2 (en) * | 1995-09-06 | 2002-05-23 | Agilent Technologies Deutschland Gmbh | Photometric flow device for small sample volumes |
| US5963333A (en) * | 1996-09-12 | 1999-10-05 | Color Savvy Systems Limited | Color sensor |
| US7763869B2 (en) * | 2007-03-23 | 2010-07-27 | Asm Japan K.K. | UV light irradiating apparatus with liquid filter |
| CN107748138B (en) * | 2017-12-05 | 2023-11-28 | 山东交通学院 | Microalgae activity detection device and method based on the principle of filter liquid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1118868A (en) * | 1913-09-08 | 1914-11-24 | Frederich Kerschbaum | Metallic-vapor lamp. |
| US2411672A (en) * | 1941-09-02 | 1946-11-26 | Paper Chemistry Inst | Electrical control system |
| US2367388A (en) * | 1942-10-19 | 1945-01-16 | Arthur J Davis | Illuminated aircraft |
| US2551542A (en) * | 1948-11-10 | 1951-05-01 | Charles R Marsh | Fluorophotometer |
| US2926253A (en) * | 1954-12-22 | 1960-02-23 | Distillers Co Yeast Ltd | Radiation analysis |
-
1972
- 1972-06-05 US US00259868A patent/US3783276A/en not_active Expired - Lifetime
-
1973
- 1973-04-25 GB GB1968373A patent/GB1425971A/en not_active Expired
- 1973-04-26 CA CA169,641A patent/CA996530A/en not_active Expired
- 1973-06-02 JP JP6246173A patent/JPS5313137B2/ja not_active Expired
- 1973-06-05 FR FR7320326A patent/FR2188184B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4957881A (en) | 1974-06-05 |
| US3783276A (en) | 1974-01-01 |
| FR2188184A1 (en) | 1974-01-18 |
| DE2328193B2 (en) | 1975-11-06 |
| CA996530A (en) | 1976-09-07 |
| FR2188184B1 (en) | 1976-09-17 |
| JPS5313137B2 (en) | 1978-05-08 |
| DE2328193A1 (en) | 1974-01-03 |
| DE2365520B2 (en) | 1976-02-05 |
| DE2365520A1 (en) | 1975-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19930424 |