1984-12-26
1986-08-19
Arnold, Bruce Y.
350107, G02B 5132
Patent
active
046066004
ABSTRACT:
In a passive infrared movement detector having a reflector which directs the radiation from a plurality of fields of vision to an infrared detector arrangement and for this purpose consists of a plurality of individual reflectors, the reflecting surface of the reflector is composed of a plurality of facets produced at the reflector. The disadvantages of such a reflector are in particular to be seen in the fact that for each required distance range of the passive infrared movement detector a reflector adapted thereto must be used. Furthermore, the production of such a reflector is relatively expensive. In order to avoid these disadvantages, the individual reflectors are proposed to be in the form of spherical reflectors which are arranged on a reflector carrier in a manner so as to be shiftable in different directions and lockable in adjusted positions.
Arnold Bruce Y.
Inovatronic elektronische Systeme GmbH
Smith, Jr. John C.
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