Surgery – Truss – Pad
Patent
1991-12-02
1994-03-29
Cohen, Lee S.
Surgery
Truss
Pad
128633, 250226, 356 51, 356229, 356402, A61B 608, G01J 318, G01J 346
Patent
active
052975550
ABSTRACT:
The invention relates to a multichannel spectrometer (10), in particular for examining moles (16) having an evaluating and display device (14) and optical means (18, 19, 21, 23, 22) to determine and display reflectance spectra of a skin surface on an ascertainable image plane (x,y) while considering white standards (17). In such a spectrometer for the examination of inter alia malignant moles (16), a contactless optical point-by-point scanning of the skin surface is desirable, which is why the optics of the spectrometer (10) comprise a lens system (18, 21, 22) directed on the skin surface and the white standard (17) and a slotted diaphragm (19) succeeded by a diffraction grating (23) directed in accordance with a slot (20) of the slotted diaphragm (19) for the simultaneous production of the reflectance spectrum of the points of a determinable line (25) of the skin surface and of the white standard (17) on the image plane (x,y) connected to the subsequent diffraction grating (23) with the evaluating and display device (14).
REFERENCES:
patent: 3874799 (1975-04-01), Isaacs et al.
patent: 4170987 (1979-10-01), Anselmo et al.
patent: 4241738 (1980-12-01), Lubbers et al.
patent: 4729372 (1988-03-01), L'Esperance, Jr.
patent: 5014707 (1991-05-01), Schwarz et al.
patent: 5014709 (1991-05-01), Bjelkhagen et al.
Cohen Lee S.
Pfaffle Krista M.
Slobod Jack D.
U.S. Philips Corporation
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