Abstract:
The invention relates to detection of target molecules in an assay, such as a bio-assay, and in particular to multivariate detection of target molecules. A detector system is disclosed, the detection system comprising an optical guide element (16) for directing luminescence radiation (7) from an associated sample towards a multivariate element (8), the sample contains probe molecules that specifically binds to target molecules; a multivariate element (8) for spatially separating the luminescence radiation (7; 14; 15) to create a plurality of spectral patterns; and a detector (13) for detecting the intensity of a set of spectral patterns, so as to determine the presence of binding complexes between probe molecules and target molecules in the sample.
Abstract:
Verfahrenund Anordnung zur einstellbaren Veränderung von Beleuchtungslicht und/ oder Probenlicht bezüglich seiner spektralen Zusammensetzung und/ oder Intensität, wobei mit ersten Polarisationsmitteln (Pol 1) eine räumliche Trennung in Strahlungsanteile unterschiedlicher Polarisation erfolgt, mit ersten Dispersionsmittel (Disp1) eine spektrale räumliche Aufspaltung mindestens eines Strahlungsanteils vorgenommen wird der Polarisationszustand mindestens eines Teils des spektral räumlich aufgespaltenenen Strahlungsanteils verändert wird und über zweite Polarisationsmittel (Pol 2) eine räumlichen Trennung und / oder Zusammenführung von Strahlungsanteilen unterschiedlicher Polarisation vorgenommen wird, wobei vorteilhaft eine räumliche Zusammenführung von bezüglich ihres Polarisationszustandes veränderten und nicht veränderten Strahlungsanteilen durch zweite Dispersionsmittel (Disp 2) erfolgt.
Abstract:
An optical measurement apparatus which includes at least one each of a light source (1), an optical element, a photodetector (2), and a sample container (22), and which measures a physical property of a biological sample in a solution retained by the sample container according to a plurality of kinds of measurement items, wherein a combination of the light source, the optical element, and the photodetector is selected or changed according to the measurement item, and a position where the photodetector is located is adjusted according to the selection or change based on intensity of light accepted by the photodetector.
Abstract:
The disclosure generally relates to a method and apparatus for multi-wavelength imaging spectrometer. More specifically, in one embodiment, the disclosure relates to an optical filter for passing photons therethrough. The filter includes a first filter stage and a second filter stage. The first filter stage may include a first retarder element (450) and a first liquid crystal cell (455). The first element may include an input face and an output face. One of the first element faces is not oriented substantially normal to the trajectory of photons passing through the filter.
Abstract:
A class of aperture coded spectrometer is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spatial resolution by replacing the slit of conventional dispersive spectrometers with a spatial filter or mask. A number of masks can be used including Harmonic masks, Legendre masks, and Hadamard masks.
Abstract:
An optical detection device for validating bank rates has several input apertures, an imaging device (12), a diffraction grating (15.1, 15.2, 15.3) associated with each input aperture (11.1, 11.2, 11.3) and a detection array (17). The diffraction grating (15.1, 15.2, 15.3) is rotated at angle of e.g.45 degrees relative to the orientation of the linear detection array (17). This arrangement enables the spectra of multiple points to be measured simultaneously. The angle of rotation, the pitch of the apertures (11.1, 11.2, 11.3) and a pitch of the diffraction grating (15.1, 15.2, 15,3) are selected in such a way that the spectra of sad multiple points are contiguously mapped onto the detection array (17) has a single linear array of color sensitive detection pixels. The acxis of the linear array is offset with respect to an optical axis (7) of the optical detection device.
Abstract:
A spectrophotometric system includes a zoom lens assembly that is mounted for axial translation relative to an integrating sphere. The zoom lens assembly includes first and second focusing lens mounted to an axially movable lens carrier. The lens carrier is positioned intermediate first and second sets of mirrors for reflecting/directing SCE and SCI beams toward fiber ports. A reference beam is also emitted from the integrating sphere and transmitted to a processor, thereby resulting in simultaneous tri-beam measurements. The disclosed spectrophotometric systems may also include an aperture plate detection assembly and/or a sample holder assembly that incorporates a dampening gas spring. The aperture plate detection system includes a detection disk that may include a plurality of pre-positioned sensors that interact with an activating ridge formed on the aperture plate for identification thereof.
Abstract:
Weak signals scattered from analytes at multiple wavelengths can be summed to illuminate either a single detector or a multiplicity of detectors, offering the possibility of concentrating the spectral energy on a smaller total detector area. In addition, a method is disclosed whereby a calibration of the resulting signal for a given analyte can be obtained by means of measuring the quantity of water in the sample volume and by means of measuring the salinity of the fluid in the sample volume.
Abstract:
A method and a low-cost, robust and simple system for remote sensing and analyzing properties of targets as a means to detect and identify them is introduced. The system can be highly portable but is usable in fixed locations or combination thereof. An aspect of the method and system includes the capability to distribute, modulate, aperture and spectrally analyze radiation emitted or absorbed by a volumetric target chemical species (solid, liquid or gas) or a target surface. Radiation is first collected by a single light gathering device (20), such as a lens, telescope, or mirror and then distributed to multiple detectors (8) through spectrally discriminating components (9) and if desired through apertures to achieve this desired detection and identification.