Method and arrangement for depicting structures
First Claim
1. A method for depicting structures, particularly while using a selective, local and volume-defined scattered light measurement with several IR diode light emitters and receivers which are disposed next to one another in an x-y plane as area radiators, said method comprising disposing light sources and receivers in one plane as area radiators and receivers to be guided in the z direction relative to an inhomogeneous object to be measured, emitting an IR radiation from the light sources in the NIR range with a particular radiation intensity, triggering the IR emitting diodes with a peak current in the milliamp to amp range at a pulse frequency in the kilohertz range and transmitting the light with an intensity modified in the x-y-z direction in multiplex operation, selectively illuminating the inhomogeneous object and the volume elements of the same dimensions, which are to be depicted therein or in situ, with an identical intensity, detecting the light and separating signals from said step of detecting into an AC channel and a DC channel, controlling the intensity in real time by punctually, differentially measured volume element-specific attenuation coefficients, obtaining these attenuation gradient coefficients from the same volume element and differing temporally, qualitatively and quantitatively, storing said coefficients in a computer and using them for assigning exact spatial assignment of the repeatedly measured volume elements as well as for selectively determining and depicting the volume flow of a suspension in a capillary vascular system within an overall vascular system of said object consisting of different vessels as integral light absorption quantities per unit volume and per unit time and determining the difference between the volume flow quantities of the capillary system, changing phasically and in proportion to the light absorption, subsequently analyzing the signals with real time spectral analysis for the frequency bands 0.1-4 Hz, 4-6 Hz and 8-12 Hz with discretionary displacement up to 1 kHz, and assigning the signals, obtained integrally and differentially for certain frequency bands to appropriate colors and depicting them as a function of intensity, location, time and wavelength.
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Accused Products
Abstract
In a method and an arrangement for depicting structures IR light sources and receivers are disposed in one plane, and are guided as area radiators and area receivers in the x-y-z direction to the object. The area radiator radiates with a particular radiation cross section and a particular intensity. IR diodes used for radiation are triggered with a peak current preferably up to 1 amp and with a pulse frequency of preferably up to 100 kHz and the backscatter being detected. IR attenuation gradient profiles of the volume elements, determined in real time, as well as the arrangement of the area radiator-receiver sensor, enable an exact spatial assignment of the volume elements in the micrometer to centimeter range and a contrasting representation of certain structures.
56 Citations
4 Claims
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1. A method for depicting structures, particularly while using a selective, local and volume-defined scattered light measurement with several IR diode light emitters and receivers which are disposed next to one another in an x-y plane as area radiators, said method comprising disposing light sources and receivers in one plane as area radiators and receivers to be guided in the z direction relative to an inhomogeneous object to be measured, emitting an IR radiation from the light sources in the NIR range with a particular radiation intensity, triggering the IR emitting diodes with a peak current in the milliamp to amp range at a pulse frequency in the kilohertz range and transmitting the light with an intensity modified in the x-y-z direction in multiplex operation, selectively illuminating the inhomogeneous object and the volume elements of the same dimensions, which are to be depicted therein or in situ, with an identical intensity, detecting the light and separating signals from said step of detecting into an AC channel and a DC channel, controlling the intensity in real time by punctually, differentially measured volume element-specific attenuation coefficients, obtaining these attenuation gradient coefficients from the same volume element and differing temporally, qualitatively and quantitatively, storing said coefficients in a computer and using them for assigning exact spatial assignment of the repeatedly measured volume elements as well as for selectively determining and depicting the volume flow of a suspension in a capillary vascular system within an overall vascular system of said object consisting of different vessels as integral light absorption quantities per unit volume and per unit time and determining the difference between the volume flow quantities of the capillary system, changing phasically and in proportion to the light absorption, subsequently analyzing the signals with real time spectral analysis for the frequency bands 0.1-4 Hz, 4-6 Hz and 8-12 Hz with discretionary displacement up to 1 kHz, and assigning the signals, obtained integrally and differentially for certain frequency bands to appropriate colors and depicting them as a function of intensity, location, time and wavelength.
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2. A method for depicting structures, particularly while using a selective, local and volume-defined scattered light measurement with several IR diode light emitters and receivers which are disposed next to one another in an x-y plane as area radiators, said method comprising disposing light sources and receivers in one plane as area radiators and receivers to be guided in the z direction relative to an inhomogeneous object to be measured, emitting an IR radiation from the light sources in the NIR range with a particular radiation intensity, stepping or selectively changing the radiation intensity of the light sources in amounts up to 100 mW/cm2 /sr, triggering the IR emitting diodes with a peak current in the milliamp to amp range at a pulse frequency in the kilohertz range and transmitting the light with an intensity modified in the x-y-z direction in multiplex operation, selectively illuminating the inhomogeneous object and the volume elements of the same dimensions, which are to be depicted therein or in situ, with an identical intensity, detecting the light and separating signals from said step of detecting into an AC channel and a DC channel, controlling the intensity in real time by punctually, differentially measured volume element-specific attenuation coefficients, obtaining these attenuation gradient coefficients from the same volume element and differing temporally, qualitatively and quantitatively, storing said coefficients in a computer and using them for assigning exact spatial assignment of the repeatedly measured volume elements as well as for selectively determining and depicting the volume flow of a suspension in a capillary vascular system within an overall vascular system of said object consisting of different vessels as integral light absorption quantities per unit volume and per unit time and determining the difference between the volume flow quantities of the capillary system, changing phasically and in proportion to the light absorption, subsequently analyzing the signals with real time spectral analysis, and assigning the signals, obtained integrally and differentially for certain frequency bands to appropriate colors and depicting them as a function of intensity, location, time and wavelength.
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3. A method for depicting structures, particularly while using a selective, local and volume-defined scattered light measurement with several IR diode light emitters and receivers which are disposed next to one another in an x-y plane as area radiators, said method comprising disposing light sources and receivers in one plane as area radiators and receivers to be guided in the z direction relative to an inhomogeneous object to be measured, emitting an IR radiation from the light sources in the NIR range with a particular radiation intensity, triggering the IR emitting diodes with a peak current in the milliamp to amp range at a pulse frequency in the kilohertz range and transmitting the light with an intensity modified in the x-y-z direction in multiplex operation, selectively illuminating the inhomogeneous object and the volume elements of the same dimensions, which are to be depicted therein or in situ, with an identical intensity, detecting the light and separating signals from said step of detecting into an AC channel and a DC channel, controlling the intensity in real time by punctually, differentially measured volume element-specific attenuation coefficients, obtaining these attenuation gradient coefficients from the same volume element and differing temporally, qualitatively and quantitatively, storing said coefficients in a computer and using them for assigning exact spatial assignment of the repeatedly measured volume elements as well as for selectively determining and depicting the volume flow of a suspension in a capillary vascular system within an overall vascular system of said object consisting of different vessels as integral light absorption quantities per unit volume and per unit time and determining the difference between the volume flow quantities of the capillary system, changing phasically and in proportion to the light absorption, subsequently analyzing the signals with real time spectral analysis, assigning the signals, obtained integrally and differentially for certain frequency bands to appropriate colors and depicting them as a function of intensity, location, time and wavelength, and using certain volume element-specific attenuation gradients for the contrasting representation of certain structures.
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4. A method for depicting structures, particularly while using a selective, local and volume-defined scattered light measurement with several IR diode light emitters and receivers which are disposed next to one another in an x-y plane as area radiators, said method comprising disposing light sources and receivers in one plane as area radiators and receivers to be guided in the z direction relative to an inhomogeneous object to be measured, emitting an IR radiation from the light sources in the NIR range with a particular radiation intensity, triggering the IR emitting diodes with a peak current in the milliamp to amp range at a pulse frequency in the kilohertz range and transmitting the light with an intensity modified in the x-y-z direction in multiplex operation, selectively illuminating the inhomogeneous object and the volume elements of the same dimensions, which are to be depicted therein or in situ, with an identical intensity, detecting the light and separating signals from said step of detecting into an AC channel and a DC channel, controlling the intensity in real time by punctually, differentially measured volume element-specific attenuation coefficients, obtaining these attenuation gradient coefficients from the same volume element and differing temporally, qualitatively and quantitatively, storing said coefficients in a computer and using them for assigning exact spatial assignment of the repeatedly measured volume elements as well as for selectively determining and depicting the volume flow of a suspension in a capillary vascular system within an overall vascular system of said object consisting of different vessels as integral light absorption quantities per unit volume and per unit time and determining the difference between the volume flow quantities of the capillary system, changing phasically and in proportion to the light absorption, subsequently analyzing the signals with real time spectral analysis, and assigning the signals, obtained integrally and differentially for certain frequency bands to appropriate colors and depicting them as a function of intensity, location, time and wavelength, and using the attenuation gradients, obtained by IR spectroscopy to depict certain structures.
Specification