FR2256401A1 - - Google Patents
Info
- Publication number
- FR2256401A1 FR2256401A1 FR7443503A FR7443503A FR2256401A1 FR 2256401 A1 FR2256401 A1 FR 2256401A1 FR 7443503 A FR7443503 A FR 7443503A FR 7443503 A FR7443503 A FR 7443503A FR 2256401 A1 FR2256401 A1 FR 2256401A1
- Authority
- FR
- France
- 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
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/191—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using pyroelectric sensor means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US429521A US3896311A (en) | 1974-01-02 | 1974-01-02 | Pyroelectric motion and temperature sensitive infrared detector with conductive fingers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2256401A1 true FR2256401A1 (US06262066-20010717-C00315.png) | 1975-07-25 |
| FR2256401B1 FR2256401B1 (US06262066-20010717-C00315.png) | 1977-07-01 |
Family
ID=23703608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7443503A Expired FR2256401B1 (US06262066-20010717-C00315.png) | 1974-01-02 | 1974-12-31 |
Country Status (7)
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4001586A (en) * | 1975-05-09 | 1977-01-04 | Plessey Incorporated | Thick film sensor and infrared detector |
| US3999069A (en) * | 1975-08-08 | 1976-12-21 | Minnesota Mining And Manufacturing Company | Pyroelectric temperature compensated sensing device employing differential amplifier |
| CH628171A5 (de) * | 1978-04-25 | 1982-02-15 | Cerberus Ag | Flammenmelder. |
| US4332157A (en) * | 1980-08-29 | 1982-06-01 | Trustees Of The University Of Pennsylvania | Pyroelectric anemometer |
| JPS57113332A (en) * | 1980-12-30 | 1982-07-14 | Horiba Ltd | Compensating thermopile detector |
| US4384207A (en) * | 1981-01-23 | 1983-05-17 | Eltec Instruments, Inc. | Differential pyroelectric detector |
| DE3230728A1 (de) * | 1982-08-18 | 1984-02-23 | Siemens AG, 1000 Berlin und 8000 München | Infrarotsensorgeraet |
| GB2170952B (en) * | 1985-02-08 | 1988-11-16 | Philips Electronic Associated | Infra-red radiation detector devices |
| US4954811A (en) * | 1988-11-29 | 1990-09-04 | Pennwalt Corporation | Penetration sensor |
| GB8827932D0 (en) * | 1988-11-30 | 1989-07-05 | Plessey Co Plc | Thermal ir detector electrode configuration |
| US5107120A (en) * | 1989-09-22 | 1992-04-21 | Pennwalt Corporation | Passive infrared detector |
| US5089741A (en) * | 1990-07-19 | 1992-02-18 | Atochem North America, Inc. | Piezofilm impact detector with pyro effect elimination |
| WO2015186011A1 (en) * | 2014-06-03 | 2015-12-10 | Todos Technologies Ltd. | Self-amplifying sensor pair |
| CN106096709B (zh) * | 2016-06-27 | 2019-02-01 | 云南瑞博检测技术股份有限公司 | 一种人流量计数传感器及其制作方法 |
| CN111696289B (zh) * | 2019-03-11 | 2022-11-01 | 杭州海康威视数字技术股份有限公司 | 一种pir传感器信号触发方法和装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2016036A (en) * | 1932-02-04 | 1935-10-01 | Gerald Alan S Fits | Photo-electric system |
| US2198725A (en) * | 1937-12-09 | 1940-04-30 | Hammond V Hayes | Alarm system |
| US2931913A (en) * | 1953-01-02 | 1960-04-05 | Jr Geary A Long | Radiation receiver |
| US3084301A (en) * | 1960-03-28 | 1963-04-02 | Jr William L Mohan | Scanning apparatus |
| GB1231029A (US06262066-20010717-C00315.png) * | 1968-12-13 | 1971-05-05 | ||
| BE760094A (fr) * | 1969-12-09 | 1971-06-09 | Siemens Ag | Dispositif detecteur de rayonnement infra-rouge et son procede de fabrication |
| US3769096A (en) * | 1971-03-12 | 1973-10-30 | Bell Telephone Labor Inc | Pyroelectric devices |
| JPS5651379B1 (US06262066-20010717-C00315.png) * | 1971-04-07 | 1981-12-04 | ||
| SE364588B (US06262066-20010717-C00315.png) * | 1972-04-24 | 1974-02-25 | Pak Construction Ab |
-
1974
- 1974-01-02 US US429521A patent/US3896311A/en not_active Expired - Lifetime
- 1974-11-29 CA CA214,925A patent/CA1025987A/en not_active Expired
- 1974-12-30 JP JP751097A patent/JPS5415759B2/ja not_active Expired
- 1974-12-31 DE DE19742461977 patent/DE2461977A1/de not_active Ceased
- 1974-12-31 FR FR7443503A patent/FR2256401B1/fr not_active Expired
- 1974-12-31 GB GB56170/74A patent/GB1489097A/en not_active Expired
- 1974-12-31 IT IT54823/74A patent/IT1026207B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| US3896311A (en) | 1975-07-22 |
| IT1026207B (it) | 1978-09-20 |
| GB1489097A (en) | 1977-10-19 |
| FR2256401B1 (US06262066-20010717-C00315.png) | 1977-07-01 |
| CA1025987A (en) | 1978-02-07 |
| JPS5415759B2 (US06262066-20010717-C00315.png) | 1979-06-16 |
| JPS50102299A (US06262066-20010717-C00315.png) | 1975-08-13 |
| DE2461977A1 (de) | 1975-07-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |