Abstract:
There is disclosed a spectral imaging apparatus (100) for processing electromagnetic (EM) radiation, the EM radiation originating from a target scene (S) and comprising a wide range of frequencies, the system comprising a dispersive element (2) for receiving EM radiation from the target scene and promoting differing amounts of dispersion depending on the frequency of the EM radiation, a deformable lens (4) arranged to receive EM radiation from the dispersive element, an imaging sensor (6) for detecting EM radiation across the wide range of frequencies, and arranged to receive EM radiation from the deformable lens, wherein the deformable lens is operable to adopt any one of a plurality of focal conditions, each focal condition tending to focus a different range of the EM radiation at the imaging sensor, each focal condition thereby defining a component band for the EM radiation.
Abstract:
An image display device comprises a display panel, a casing to hold the display panel, a moving bar provided at the casing and configured to be movable in a first direction while overlapping the display panel, a calibration sensor at the moving bar to be movable in a second direction perpendicular to the first direction and to obtain calibration information related to the display panel, and a controller to control the display panel based on the obtained calibration information.
Abstract:
A device is provided for combining two or more separate components of an optical analysis system, to use common entrance and exit apertures for optical measurements across a measurement space such as a stack, combustion chamber, duct or pipeline, in such way that the optical paths from the respective light sources to detectors are substantially the same, enabling multiple optical measurements over a single optical path or closely aligned optical paths with equivalent ambient conditions such as temperature and pressure distribution and background substance concentrations. The device and a set of interconnectable devices forming a modular system are useful, for example, in absorption spectroscopy, such as for measuring the amount fraction of the chemical constituents of a fluid in a measurement volume.
Abstract:
The invention relates to a method and an arrangement for Fourier transformation spectroscopy, in particular also for imaging radiation source and substance analysis of all states of matter and for imaging in vivo tissue diagnostics, including tumour tissue. The arrangement is also designed in particular as a mobile Scout sensor or as a highly parallelised permanently installed analysis station in the respective spectral range suitable therefor. According to the invention irradiation of at least one elongate region in the two aperture faces (A1, A2) of the two-beam interferometer used is carried out by means of a spectral wideband source of electromagnetic radiation whereas the longitudinal direction of the irradiated elongate region is perpendicular to the sectional plane V-M. The end reflectors are constructed in hybrid form having partial retro-reflectance properties. An advantage arises for the robustness of the two-beam interferometer even under adverse conditions, since unwanted tilt and unwanted shear of wavefronts are restricted and/or are also detected for digital compensation. Thus reliable interferogram data can be provided for calculation of spectra.
Abstract:
Eine Vorrichtung zur Ermittlung von Fluoreszenzeigenschaften von Proben hat eine polychromatischen Lichtquelle (LQ), einen optischen Anregungspfad (AP) zur Übertragung von spektralen Anteilen von Licht der Lichtquelle als Anregungslicht in eine Messposition (MP), in der eine Probe (P) angeordnet oder anordenbar ist, und einen optischen Emissionspfad (EP) zur Übertragung von durch die Probe emittiertem Emissionslicht zu einem Detektor (DET). Im Anregungspfad ist mindestens ein dispersiver Monochromator angeordnet. Der Anregungspfad ist frei von Interferenz-Bandpassfiltern. Im Emissionspfad ist eine stufenlos einstellbare Transmissionsfilteranordnung (TFA) mit mindestens einem spektral durchstimmbaren Transmissionsfilter (TF1, TF2, TF3) angeordnet.
Abstract:
A color measurement system (100) for laterally determining the chromatic characteristics of a printed substrate conveyed by a conveying apparatus. The system includes a measurement carriage (102) and a backing carriage (114). The measurement carriage includes a measurement head (104) for laterally moving across the width of the printed substrate and a measurement magnetic coupler (106). The measurement carriage is slidably mounted onto a measurement rail (112) positioned on a first side of the printed substrate. The backing carriage includes at least one backing surface (116W, 116B) and at least one backing magnetic coupler (18W, 118B). Each of the at least one backing magnetic coupler is associated with a respective one of the backing surface. Each of the at least one backing magnetic coupler can be coupled with the measurement magnetic coupler for coupling the measurement carriage with the backing carriage. The backing carriage is slidably mounted onto a backing rail (120) positioned on a second side of the printed substrate, opposite the first side. A selected one of the measurement carriage and the backing carriage includes a motor (110) for moving across a respective one of the measurement rail and the backing rail. Another one of the measurement carriage and the backing carriage is moved across another one of the measurement rail and the backing rail by being coupled with the first one of the measurement carriage and the backing carriage.
Abstract:
A spectroscopic detection device including: a stop in which an aperture is formed; a first and second photodetectors which detect the detection light; a collimator which converts the detection light emitted from the stop into substantially parallel light, and emits light to at least one of the first and second photodetectors; a dispersive element which is arranged between the collimator and the first photodetector, and disperses the detection light; a condensing optical system which condenses the detection light dispersed by the dispersive element to the first photodetector; and a wavelength selection filter which is arranged between the collimator and the second photodetector, and allows light in a specified wavelength range to enter the second photodetector. The collimator is configured so that the focal distance for the detection light emitted to the first photodetector may be different from the focal distance for the detection light emitted to the second photodetector.