Global Patent Index - EP 1089244 A1

EP 1089244 A1 2001-04-04 - Mirrors layout in a passive infrared detector

Title (en)

Mirrors layout in a passive infrared detector

Title (de)

Spiegelanordnung für Passiv-Infrarotmelder

Title (fr)

Disposition de miroirs dans un capteur passif d'infrarouge

Publication

EP 1089244 A1 (DE)

Application

EP 00111473 A

Priority

  • EP 00111473 A
  • EP 99119496 A

Abstract (en)

The mirror system (1) for use in an infra red detector has a number of reflectors (A-D) that focuses the heat emissions from people in a room onto a sensor. The reflectors are formed in segments to respond to different sectors and overlap with each other to form a broad range.

Abstract (de)

Die Spiegelanordnung für Passiv-Infrarotmelder zur Überwachung langgestreckter Räume enthält mehreren Reflektoren (A-D) zur Bündelung der aus einem Überwachungsraum auf den Melder fallenden Wärmestrahlen auf einen im Melder angeordneten Sensor. Jedem Reflektor (A-D) ist ein Überwachungsbereich in einer bestimmten radialen Entfernung von der Spiegelanordnung (1) und damit vom Melder zugeordnet und die Überwachungsbereiche decken den Überwachungsraum in vertikaler Richtung ab. Jeder Reflektor (A-D) besteht aus einer Anzahl von Segmenten (A1-A5; B1-B3; C1-C4; D1, D2), so dass die Überwachungsbereiche vertikal in Subzonen mit leicht unterschiedlicher Elevation aufgespalten sind. Die einzelnen Segmente (A1-A5; B1-B3; C1-C4; D1, D2) jedes Reflektors (A, B, C, D) bilden je eine stetige, zusammenhängende Fläche. Die Elevation der Segmente (A1-A5; B1-B3; C1-C4; D1, D2) ist so gewählt, dass bei der Mehrzahl der Überwachungsbereiche höchstens eine geringfügige Überlappung der Subzonen erfolgt. <IMAGE>

IPC 1-7 (main, further and additional classification)

G08B 13/193

IPC 8 full level (invention and additional information)

G08B 13/193 (2006.01)

CPC (invention and additional information)

G08B 13/193 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1089244 A1 20010404; EP 1089244 B1 20040331

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