JPS5517274Y2 - - Google Patents
Info
- Publication number
- JPS5517274Y2 JPS5517274Y2 JP1978008008U JP800878U JPS5517274Y2 JP S5517274 Y2 JPS5517274 Y2 JP S5517274Y2 JP 1978008008 U JP1978008008 U JP 1978008008U JP 800878 U JP800878 U JP 800878U JP S5517274 Y2 JPS5517274 Y2 JP S5517274Y2
- Authority
- JP
- Japan
- 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
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
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Landscapes
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1890270A CH520990A (de) | 1970-12-21 | 1970-12-21 | Rauchdetektor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5396993U JPS5396993U (de) | 1978-08-07 |
| JPS5517274Y2 true JPS5517274Y2 (de) | 1980-04-22 |
Family
ID=4436016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978008008U Expired JPS5517274Y2 (de) | 1970-12-21 | 1978-01-27 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3760395A (de) |
| JP (1) | JPS5517274Y2 (de) |
| AU (1) | AU451854B2 (de) |
| CH (1) | CH520990A (de) |
| DE (1) | DE2161354A1 (de) |
| FR (1) | FR2119459A5 (de) |
| GB (1) | GB1366335A (de) |
| SE (1) | SE371708B (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE369964B (de) * | 1973-01-18 | 1974-09-23 | Satt Elektronik Ab | |
| IL45331A (en) * | 1973-11-26 | 1977-12-30 | Chloride Batterijen Bv | Photoelectric smoke detector |
| US4155653A (en) * | 1977-10-14 | 1979-05-22 | The United States Of America As Represented By The Secretary Of The Navy | Smoke-measuring transducer |
-
1970
- 1970-12-21 CH CH1890270A patent/CH520990A/de not_active IP Right Cessation
-
1971
- 1971-12-10 DE DE19712161354 patent/DE2161354A1/de active Pending
- 1971-12-14 US US00207791A patent/US3760395A/en not_active Expired - Lifetime
- 1971-12-17 FR FR7145548A patent/FR2119459A5/fr not_active Expired
- 1971-12-17 SE SE7116215A patent/SE371708B/xx unknown
- 1971-12-21 GB GB5940771A patent/GB1366335A/en not_active Expired
- 1971-12-21 AU AU37162/71A patent/AU451854B2/en not_active Expired
-
1978
- 1978-01-27 JP JP1978008008U patent/JPS5517274Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3760395A (en) | 1973-09-18 |
| DE2161354A1 (de) | 1972-07-13 |
| JPS5396993U (de) | 1978-08-07 |
| AU3716271A (en) | 1973-06-28 |
| AU451854B2 (en) | 1974-08-22 |
| CH520990A (de) | 1972-03-31 |
| SE371708B (de) | 1974-11-25 |
| GB1366335A (en) | 1974-09-11 |
| FR2119459A5 (de) | 1972-08-04 |