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公开(公告)号：EP3424029A1
公开(公告)日：2019-01-09
申请号：EP17711521.9
申请日：2017-03-06
发明人： STIBICH, Mark A. , SIMMONS, Sarah E. , GUERRERO, Edward C. , FROUTAN, Paul P. , WHITELONIS, Nicholas , TABER, Joseph
IPC分类号： G08B17/11
摘要： Smoke detectors and smoke alarms are provided which have one or more light shields configured to block or minimize the transmission of ambient light to their light receivers. Light shield configurations for facilitating such functionality are provided as well. The shield/s include a material which attenuates a majority amount of light within a particular range of light that a light source of the smoke detector may be configured to only emit and/or the range of light the light receiver may configured to only convert to photocurrent. In some cases, the shield/s surrounds the light source and/or the light receiver arranged external to an interior chamber of the smoke detector. In some cases, the shield/s may at least partially span a connection side of an external housing of the smoke detector. Alternatively, the shield may be arranged in a space between the interior chamber and the connection side of the housing.
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公开(公告)号：EP3405933A1
公开(公告)日：2018-11-28
申请号：EP17704585.3
申请日：2017-01-18
发明人： STIBICH, Mark A. , SIMMONS, Sarah E. , GUERRERO, Edward C. , FROUTAN, Paul P. , WHITELONIS, Nicholas , TABER, Joseph
IPC分类号： G08B17/10
CPC分类号： G08B17/107 , F16M11/245 , G08B17/10
摘要： Smoke detector shields for blocking or minimizing the transmission of light therethrough and methods for use are provided. According to one embodiment, a method for shielding a smoked detector includes shielding at least a portion of a smoke detector operationally arranged within a room, and subsequently activating a light emission device arranged within the room, while shielding the smoke detector. In order to exclude light emission devices, which are commonly used within a room for lighting and/or communication purposes, the light emission device set forth in the method is configured for generating infrared light at a radiant intensity greater than approximately 1 W/sr, and/or ultraviolet light at a radiant intensity greater than approximately 1 W/sr, and/or visible light at a luminous flux greater than approximately 3000 lumens. Embodiments of smoke detector shields that prevent such light from penetrating the housing of a shielded smoke detector are provided herein.
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