US 7,557,916 B2
Spectroscopic system with multiple probes
Bernardus Leonardus Gerardus Bakker, Nijmegen (Netherlands); and Michael Cornelis Van Beek, Eindhoven (Netherlands)
Assigned to Koninklijke Philips Electronics N.V., Eindhoven (Netherlands)
Appl. No. 11/570,137
PCT Filed Jun. 22, 2005, PCT No. PCT/IB2005/052045
§ 371(c)(1), (2), (4) Date Dec. 07, 2006,
PCT Pub. No. WO2006/003551, PCT Pub. Date Jan. 12, 2006.
Claims priority of application No. 04103151 (EP), filed on Jul. 02, 2004.
Prior Publication US 2008/0062401 A1, Mar. 13, 2008
Int. Cl. G01J 3/30 (2006.01)
U.S. Cl. 356—317 15 Claims
OG exemplary drawing
 
1. A spectroscopic system for determining of a property of a substance at a plurality of volumes of interest comprising:
a base station having a multi-channel spectroscopic analysis unit and a light source for providing excitation radiation;
a plurality of a probe heads directing the excitation radiation into the plurality of volumes of interest and collecting return radiation emanating from the plurality of volumes of interest;
a plurality of bidirectional optical coupling fibers, each optical coupling fiber carrying excitation radiation to a corresponding probe head and return radiation from the corresponding probe head;
an optical router (a) selectively channeling the excitation radiation to the optical coupling fiber corresponding to each of the probe heads and (b) selectively switching the return radiation from the optical coupling fiber corresponding to each of the probe heads to a selected channel of the multi-channel spectroscopic analysis unit.