公开(公告)号：US09046414B2

公开(公告)日：2015-06-02

申请号：US13835523

申请日：2013-03-15

Applicant: Google Inc.

Inventor： Tony Fadell ,  Mathias Schmidt ,  Adam Mittleman ,  Ben Filson ,  Andrew Goldenson

IPC: G01J5/08 ,  G01J5/04 ,  G08B17/00 ,  G01J5/02 ,  G06K9/00 ,  H04L12/28 ,  G08B17/11 ,  G08B17/10 ,  G08B13/193

CPC classification number: G01J5/0806 ,  G01J5/025 ,  G01J5/041 ,  G06K9/00369 ,  G08B13/193 ,  G08B17/00 ,  G08B17/10 ,  G08B17/11 ,  G08B17/113 ,  H01H9/02 ,  H02J13/0013 ,  H04L12/282 ,  H05B37/0272 ,  Y10T29/49002 ,  Y10T307/74 ,  Y10T307/773

Abstract: According to one embodiment, a hazard detector includes a front casing coupled with a back plate to define a housing having an interior region. The hazard detector also includes a passive infrared sensor device that is disposed within the interior region and that is positioned to face a room within which the hazard detector is positioned so as to detect objects within the room. The hazard detector additionally includes a Fresnel lensing component that is disposed on an exterior of the front casing and that is positioned in front of the passive infrared sensor device to direct infrared radiation onto the passive infrared sensor device. The Fresnel lensing component is configured to be inwardly pushable by a user to cause contact with a switch positioned therebehind so that input is provided to the hazard detector by the user.

Abstract translation: 根据一个实施例，危害检测器包括与背板联接以限定具有内部区域的壳体的前壳体。 危害检测器还包括被动红外传感器装置，其被布置在内部区域内并且被定位成面对危险检测器所在的房间，以便检测房间内的物体。 危害检测器还包括菲涅尔透镜组件，其设置在前壳体的外部，并且位于被动红外传感器装置的前面，以将红外辐射引导到被动红外传感器装置上。 菲涅耳透镜组件被构造成可由使用者向内推动，以使与定位在其上的开关接触，使得用户将输入提供给危害检测器。