Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2011-03-29
2011-03-29
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
Reexamination Certificate
active
07915588
ABSTRACT:
The invention relates to an arrangement (10) and a method for detecting an object (18) arranged on a body (14). The arrangement comprises a vibration device (12), which sets the body (14) in a mechanical vibration of predetermined vibration frequency and predetermined vibration phase, an emission device (20) which emits in the direction of the body (14) a coherent electromagnetic detection radiation (26), the radiation frequency of which is selected such that it is reflected at least in part by the body (14) and the object (18) to be detected, a receiver device (30), which receives the radiation (28) reflected by the body (14) and the object (18), and an evaluation device (32) which filters out of the radiation (28) received the portions having the predetermined vibration frequency and evaluates them with respect to their vibration phase difference from the predetermined vibration phase.
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Greenblum & Bernstein P.L.C.
Kim Kiho
Ludwig-Maximilians-Universitaet Muenchen
Porta David P
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