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公开(公告)号：US5321290A
公开(公告)日：1994-06-14
申请号：US178556
申请日：1980-07-29
IPC分类号： H01L27/146 , H01L31/0352 , H01L31/09 , H01L25/00 , G01T1/22 , G02C26/10
CPC分类号： H01L31/09 , H01L27/14669 , H01L31/035281 , Y02E10/50
摘要： A thermal imaging device having both serial and parallel content is provided by a number of infra-red radiation detector strips supported side by side on an insulating substrate, each strip having a number of read-out regions. To allow connection from the side of the device to the innermost detector strips, conductors err end across outer strips. These conductors may extend over the strips and over insulating material therebetween. Alternatively the conductors may be in the form of conductive tracks embodied in a substrate of semiconductor material. The strips may be indented at the read-out regions to provide, with very close spacing, sufficient room for contact between the read-out regions and the conductive tracks. Preformed aluminium contact pads may be used between bridging links to the read-out regions and the conductive tracks the contact pads and preformed tracks being centered during preformation to ensure a good ohmic contact.
摘要翻译： 具有串行和并行内容的热成像装置由在绝缘基板上并排支撑的多个红外辐射检测器带提供，每个条带具有多个读出区域。 为了允许从设备的侧面到最内侧的检测器条的连接，导体绕着外部条纹结束。 这些导体可以在条带之间延伸并且在它们之间的绝缘材料上方延伸。 或者，导体可以是实现在半导体材料的衬底中的导电轨迹的形式。 条带可以在读出区域上缩进，以非常紧密的间距提供读出区域和导电轨迹之间的足够的接触空间。 预成形的铝接触焊盘可以在与读出区域和导电轨道的桥接部分之间用于接触焊盘和预成型轨道在预形成过程中居中以确保良好的欧姆接触。
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公开(公告)号：US5231378A
公开(公告)日：1993-07-27
申请号：US719125
申请日：1991-06-21
IPC分类号： G08B17/107
CPC分类号： G08B17/107 , G08B17/113
摘要： A high sensitivity smoke detector comprises a cylindrical housing incorporating a sampling chamber through which air to be sampled is forced. A modulated light source, such as a laser, directs modulated light through the chamber to a beam dump. The light beam is offset from the axis of the housing by an acute angle of between 15 and 50 degrees. If any smoke particles are positioned within a sampling volume, the light is scattered along a path defined by baffles to an axially positioned light sensor whose electrical output is passed through a phase-sensitive detection circuit which is referenced by the frequency at which the light source is modulated, so as to produce an output dependent on the light scattered by the smoke particles.
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