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    • 7. 发明专利
    • AT426154T
    • 2009-04-15
    • AT06821419
    • 2006-11-13
    • KONINKL PHILIPS ELECTRONICS NV
    • BAKKER LEVINUSVAN BEEK MICHAELVAN DER MARK MARTINUS
    • G01N21/47G01N21/64
    • The invention relates to a device ( 1 ) for imaging an interior of a turbid medium ( 25 ). The device ( 1 ) may be used to accommodate a turbid medium ( 25 ) inside a measurement volume ( 20 ) and irradiate the turbid medium ( 25 ) with light from a light source ( 5 ), after which light emanating from the measurement volume ( 20 ) is detected and used to determine an image of the interior of the turbid medium ( 25 ). The device ( 1 ) is adapted such that additional means are introduced for irradiating the turbid medium ( 25 ) with light causing fluorescent emission in a contrast agent present in the turbid medium ( 25 ), for detecting the fluorescent emission in at least two spectral regions, and for calculating an image reconstruction for the at least two spectral regions detected. By detecting the fluorescent emission spectroscopically, that is as a function of wavelength, information can be obtained from which the concentration of a predetermined component present inside the turbid medium can be determined.
    • 10. 发明专利
    • AT441184T
    • 2009-09-15
    • AT03735902
    • 2003-06-25
    • KONINKL PHILIPS ELECTRONICS NV
    • VAN DER MARK MARTINUSPHILIPS GAVIN
    • G11B7/12G11B7/135G11B7/24G11B7/245G11B7/253G11B7/254G11B7/2542G11B7/257G11B11/105
    • An optical recording and reading system for use with an optical data storage medium ( 5 ) is described. The system comprises the medium ( 5 ) having a recording stack ( 9 ), formed on a substrate ( 8 ). The recording stack ( 9 ) is suitable for recording by means of a focused radiation beam ( 1 ) with a wavelength lambda in air. The recording stack ( 9 ) has a first optical surface ( 6 ) most remote from the substrate ( 8 ). An optical head ( 3 ), with an objective ( 2 ) having a numerical aperture NA>0.8 and from which objective ( 2 ) the focused radiation beam emanates ( 1 ) during recording, is ( 2 ) arranged on the recording stack ( 9 ) side of said optical data storage medium ( 5 ). The objective has a second optical surface ( 7 ) closest to the recording stack ( 9 ), and is adapted for recording/reading at a free working distance d F of smaller than 50 mum from the first optical surface ( 6 ). At least one of the first optical surface ( 6 ) and the second optical surface ( 7 ) is provided with a transparent hydrophobic layer ( 10 ) that has a refractive index n and has a thickness smaller than 0.5 vn. In this way reliable recording and reading is achieved, specifically contamination build-up on the second optical surface ( 7 ) is prevented or counteracted.