Abstract:
An optical analysis system and method for determining information carried by light include a multivariate optical element disposed in the system to receive a source light from an illumination source; filtering the source light through a spectral element in the optical element analysis system; reflecting the filtered light through an inner region of a cavity in a first direction of a sample to be measured, the cavity defining a second region disposed about the inner region; focusing the reflected light proximate the sample; reflecting the focused light from the sample through the second region in a second direction of a beamsplitter, the light being reflected from the sample carrying data from the sample; splitting the sample carrying light with the beamsplitter into a first light and a second light; optically filtering the data of the first light with the multivariate optical element into an orthogonal component; directing the first light filtered by the multivariate optical element onto a first photodetector; directing the second light onto a second photodetector; and comparing the orthogonal component to information present in the second light to determine a property of the sample.
Abstract:
A method of developing a multivariate optical element for an optical analysis system includes forming an optically absorptive spectral element having an optically absorptive material, the optically absorptive material being absorbing in a predetermined spectral region; and utilizing the optically absorptive spectral element in the optical analysis system.
Abstract:
A system for predicting blood constituent values in a patient includes a remote wireless noninvasive spectral device (2) for generating a spectral scan of a body part of the patient. The system also includes a remote invasive device (1) and a central processing device (3). The remote invasive device (1) generates a constituent value for the patient, which the central processing device (3) predicts a blood constituent value of the patient based upon the spectral scan and the constituent value.
Abstract:
A boron carbide solid state neutron detector (10) includes a layer (12) of boron carbide wherein the boron carbide layer is an electrically active part of the detector. A sensing mechanism which may be inherent to the boron carbide layer detects changes in the boron carbide layer caused by the interception of neutrons. In a method of using the detector (10) a monitoring device coupled to the sensing mechanism records the detected changes.
Abstract:
A spectrophotometer capable of measuring a plurality of dispersed beams selectively with a linear array sensor (7, 18), which consists of a single row of sensor members, by discharging beams selectively from the output terminals of optical fibers (3a-3c, 13a, 13b, 21) by means of beam selecting means (8a-8c, SW1, SW2).
Abstract:
A multi-mode imaging spectrometer that incorporates two orthogonally positioned entrance slits and is configurable between a first mode in which the system produces images of relatively wide spatial coverage with moderate spectral resolution, using a first one of the two slits, and a second mode in which the system produces images of a smaller spatial area with fine spectral resolution, using the other one of the two slits.
Abstract:
Eine Spektrometer-Anordnung (10) mit einem Spektrometer zur Erzeugung eines Spektrums von Strahlung aus einer Strahlungsquelle auf einem Detektor (34), enthaltend eine abbildende, optische Littrow-Anordnung (18, 20) zur Abbildung der in die Spektrometer-Anordnung eintretenden Strahlung (16) in eine Bildebene, eine erste Dispersionsanordnung (28, 30) zur spektralen Zerlegung eines ersten Wellenlängenbereichs der in die Spektrometer-Anordnung eintretenden Strahlung, eine zweite Dispersionsanordnung (58, 60) zur spektralen Zerlegung eines zweiten Wellenlängenbereichs der in die Spektrometer-Anordnung eintretenden Strahlung, und einen gemeinsamen in der Bildebene der abbildenden Optik angeordneten Detektor (34), ist dadurch gekennzeichnet, dass die abbildende optische Anordnung (18, 20) ein zwischen zwei Stellungen (20, 50) bewegliches Element (20) umfasst, wobei die in die Spektrometer-Anordnung eintretende Strahlung in der ersten Stellung über die erste Dispersionsanordnung und in der zweiten Stellung über die zweite Dispersionsanordnung geleitet wird.
Abstract:
A system and method for optical spectroscopic measurements is described. One embodiment includes a measurement head for optical spectroscopic measurements, the measurement head comprising an illumination source configured to illuminate a sample, a collection optic configured to view the sample, and an internal reference, wherein the internal reference can be illuminated by the illumination source and viewed by the collection optic.