Abstract:
The present invention is thus directed to an automated system of varying the optical path length in a sample that a light from a spectrophotometer must travel through. Such arrangements allow a user to easily vary the optical path length while also providing the user with an easy way to clean and prepare a transmission cell for optical interrogation. Such path length control can be automatically controlled by a programmable control system to quickly collect and stores data from different path lengths as needed for different spectrographic analysis. Moreover, the system utilizes configured wedge shaped windows to best minimize the reflections of light which cause periodic variation in transmission at different wave lengths (commonly described as “channel spectra”). Such a system, as presented herein, is able to return best-match spectra with far fewer computational steps and greater speed than if all possible combinations of reference spectra are considered.
Abstract:
Disclosed are a scanner system and a method for recording surface geometry and surface color of an object where both surface geometry information and surface color information for a block of said image sensor pixels at least partly from one 2D image recorded by said color image sensor.
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 system is provided for performing filter-based and monochromator-based measurements. The system includes a light source (250) and a plurality of detectors (112, 114). An excitation monochromator (130) outputs a selected wavelength component of the excitation light. Emitted light from a sample follows a selected emission optical path. An emission monochromator (132) outputs a selected wavelength component of the emitted light when part of the selected path. An interface cartridge (104) includes emission light ports positioned to direct the emitted light from the sample along a corresponding optical path. The interface cartridge aligns a selected optical path with the main measurement optical axis. A movable sliding switch mechanism (120) provides optical channels corresponding to positions on the sliding switch mechanism to complete a selected emission optical path. The position on the sliding switch mechanism is selected by moving the sliding switch mechanism to align the optical channel for the position with the main measurement optical axis.
Abstract:
A multi-wavelength optical imaging system and method. In one example, an optical imaging system includes an integrated dewar assembly housing a staring detector that includes a plurality of focal plane array sensors spatially distributed over a common focal plane and aligned relative to one another, each of the plurality of focal plane array sensors being configured for a different waveband. The optical imaging system further includes foreoptics, such as a telescope, optically coupled to the integrated dewar assembly and configured to direct and focus light from an entrance pupil of the optical imaging system into an optical beam incident on at least one of the plurality of focal plane array sensors.
Abstract:
A device for three-dimensional imaging by full-field interferential microscopy of a volumic and scattering sample includes an imaging interferometer of variable magnification, allowing for the acquisition of at least one first and one second interferometric images resulting from the interference of a reference wave obtained by reflection of the incident wave on a reference mirror and an object wave obtained by backscattering of the incident wave by a slice of the sample at a given depth of the sample. The invention also relates to a processing unit that processes the interferometric images, a unit for axially displacing the interferometer relative to the sample for the acquisition of tomographic images for slices at different depths of the sample, and a unit for varying the magnification of the imaging interferometer for the acquisition of interferometric images of a slice for different magnification values.
Abstract:
Certain examples described herein are directed to optical devices and systems for use in spectroscopy. In particular, certain embodiments described herein are directed to devices and methods that may separate excitation light and Raman optical pathways, prior to sample irradiation, so that, if desired, the excitation light and the Raman scattered radiation may be independently manipulated.