Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-06-23
1993-08-24
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250226, 356 39, G01N 1506, G01N 3316
Patent
active
052391850
ABSTRACT:
In order to make it possible to measure the light absorption coefficient of various sorts of substances contained in a light scattering material with a high precision, the wavelength of light transmitted through the light scattering material is varied and the coefficient of light absorption is calculated, starting from a ratio of variations in the intensity of the transmitted light to variations in the wavelength.
REFERENCES:
patent: 4350441 (1982-09-01), Wicnienski
patent: 4714341 (1987-12-01), Hamaguri et al.
patent: 4730112 (1988-03-01), Wong
patent: 4805623 (1989-02-01), Jobsis
patent: 4819752 (1989-04-01), Zelin
patent: 4824242 (1989-04-01), Frick et al.
patent: 4863265 (1989-09-01), Flower et al.
patent: 4997769 (1991-03-01), Lundsgaard
patent: 5015099 (1991-05-01), Nagai et al.
Quantitative analysis of hemoglobin oxygenation state of rate brain in situ by near-infrared spectrophotometry (O. Hazeki et al, American Physiological Society, 1988, pp. 796-802).
Noninvasive technique for oximetry of blood in retinal vessels, Applied Optics, 15 Mar. 1988, vol. 27, No. 6, pp. 1113-1125.
Ito Yoshitoshi
Kawaguchi Fumio
Kohida Hiroyuki
Nagai Keiichi
Yoshida Minoru
Hitachi , Ltd.
Lee John R.
Nelms David C.
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