公开(公告)号：EP1856677B1

公开(公告)日：2009-04-08

申请号：EP06703949.5

申请日：2006-02-01

申请人： Pyronix Limited

发明人： Stromberg, Juan Sebastian Herrera ,  Leivers, Craig

IPC分类号： G08B13/189

CPC分类号： G08B29/183 ,  G08B13/189 ,  G08B13/193

摘要： Embodiments of the present invention relate to a detector comprising first and second lenses for use with respective first and second sensing means; each lens comprising a plurality of Fresnel facets having respective fields of view adapted such that the fields of view of the first lens are alternately arranged with the fields of view of the second lens such that the fields of view of the first lens are adjacent only to, but do not overlap with, the fields of view of the second lens in a single direction.

公开(公告)号：EP1856677A1

公开(公告)日：2007-11-21

申请号：EP06703949.5

申请日：2006-02-01

申请人： Pyronix Limited

发明人： Stromberg, Juan Sebastian Herrera ,  Leivers, Craig

IPC分类号： G08B13/189

CPC分类号： G08B29/183 ,  G08B13/189 ,  G08B13/193

摘要： Embodiments of the present invention relate to a detector comprising first and second lenses for use with respective first and second sensing means; each lens comprising a plurality of Fresnel facets having respective fields of view adapted such that the fields of view of the first lens are alternately arranged with the fields of view of the second lens such that the fields of view of the first lens are adjacent only to, but do not overlap with, the fields of view of the second lens in a single direction.