DE3477704D1 - Segmented optical system for an alarm system - Google Patents
Segmented optical system for an alarm systemInfo
- Publication number
- DE3477704D1 DE3477704D1 DE8484308527T DE3477704T DE3477704D1 DE 3477704 D1 DE3477704 D1 DE 3477704D1 DE 8484308527 T DE8484308527 T DE 8484308527T DE 3477704 T DE3477704 T DE 3477704T DE 3477704 D1 DE3477704 D1 DE 3477704D1
- Authority
- DE
- Germany
- Prior art keywords
- segmented optical
- optical system
- alarm
- alarm system
- segmented
- 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
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- 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
- G08B13/193—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 focusing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S250/00—Radiant energy
- Y10S250/01—Passive intrusion detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8333400 | 1983-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3477704D1 true DE3477704D1 (en) | 1989-05-18 |
Family
ID=10553323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484308527T Expired DE3477704D1 (en) | 1983-12-15 | 1984-12-07 | Segmented optical system for an alarm system |
Country Status (4)
Country | Link |
---|---|
US (1) | US4617463A (de) |
EP (1) | EP0148593B1 (de) |
JP (1) | JPS60190819A (de) |
DE (1) | DE3477704D1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4788439A (en) * | 1987-02-05 | 1988-11-29 | Santa Barbara Research Center | Multiple detector fog suppression and edge enhancement |
JPS6488392A (en) * | 1987-09-30 | 1989-04-03 | Daikin Ind Ltd | Human body position detecting device |
US5107120A (en) * | 1989-09-22 | 1992-04-21 | Pennwalt Corporation | Passive infrared detector |
JP3375956B2 (ja) * | 1990-11-26 | 2003-02-10 | オプテックス株式会社 | 警備システム |
GB2251700B (en) * | 1990-11-30 | 1994-08-24 | Combined Optical Ind Ltd | Multiple array lens |
US5377049A (en) * | 1993-06-01 | 1994-12-27 | C & K Systems, Inc. | Method of making a segmented focusing mirror |
GB2286042B (en) * | 1994-01-27 | 1998-07-29 | Security Enclosures Ltd | Wide-angle infra-red detection apparatus |
DE19805622A1 (de) * | 1998-02-12 | 1999-08-19 | Thomson Brandt Gmbh | Bewegungsmelder zum Ein- und/oder Ausschalten von einem elektronischen Gerät |
US6037594A (en) * | 1998-03-05 | 2000-03-14 | Fresnel Technologies, Inc. | Motion detector with non-diverging insensitive zones |
US6678097B2 (en) * | 2001-05-04 | 2004-01-13 | Honeywell International Inc. | Non-planar fresnel reflector arrays, mold structures and mold patterns for eliminating negative draft during molding |
US7187505B2 (en) * | 2002-10-07 | 2007-03-06 | Fresnel Technologies, Inc. | Imaging lens for infrared cameras |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3703718A (en) * | 1971-01-07 | 1972-11-21 | Optical Coating Laboratory Inc | Infrared intrusion detector system |
US3958118A (en) * | 1975-02-03 | 1976-05-18 | Security Organization Supreme-Sos-Inc. | Intrusion detection devices employing multiple scan zones |
CH629904A5 (en) * | 1978-04-11 | 1982-05-14 | Hans Raeber | Detector device for thermal radiation for room surveillance |
US4263585A (en) * | 1979-08-13 | 1981-04-21 | Schaefer Hans J | Intrusion detection system with a segmented radiation sensing mirror |
US4321594A (en) * | 1979-11-01 | 1982-03-23 | American District Telegraph Company | Passive infrared detector |
US4275303A (en) * | 1979-11-13 | 1981-06-23 | Arrowhead Enterprises, Inc. | Passive infrared intrusion detection system |
US4339748A (en) * | 1980-04-08 | 1982-07-13 | American District Telegraph Company | Multiple range passive infrared detection system |
DE3039819A1 (de) * | 1980-10-22 | 1982-05-27 | EMS Elektronische Meldesysteme GmbH, 8912 Kaufering | Alarmgeber |
CH657928A5 (de) * | 1981-11-25 | 1986-09-30 | Eltec Instr Ag | Anordnung fuer einen strahlungsdetektor mit mehreren sensorelementen und deren verwendung. |
-
1984
- 1984-12-07 EP EP84308527A patent/EP0148593B1/de not_active Expired
- 1984-12-07 DE DE8484308527T patent/DE3477704D1/de not_active Expired
- 1984-12-12 US US06/681,514 patent/US4617463A/en not_active Expired - Fee Related
- 1984-12-14 JP JP59263083A patent/JPS60190819A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0148593A1 (de) | 1985-07-17 |
US4617463A (en) | 1986-10-14 |
EP0148593B1 (de) | 1989-04-12 |
JPS60190819A (ja) | 1985-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |