Communications: radio wave antennas – Antennas – With housing or protective covering
Reexamination Certificate
2007-02-20
2007-02-20
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
With housing or protective covering
C343S753000, C343S909000, C343S91100R
Reexamination Certificate
active
10548083
ABSTRACT:
To provide an object detecting device having a capability of sufficiently adjusting the detection areas to suit to the environment in which it is installed, the object detecting device includes an antenna AT for emitting a detecting beam to the detection areas and receiving a portion of the detecting beam which has been reflected from the detection areas, and adjusting covers6and7covering a front portion of the antenna AT and operable to adjust respective figurations of the detection areas. The adjusting covers6and7are selectively fitted one at a time to the front portion of the antenna AT for defining a different figuration of the detection areas. When one of the adjusting covers, that is, the cover6that is formed with a pair of cutouts63and63for suppressing the side lobe of the detecting beam is selectively used, the detection areas can be defined having no unnecessary detection areas.
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Imanishi Osamu
Kurata Mataichi
Optex Co. Ltd.
Phan Tho
Sughrue & Mion, PLLC
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