Patents Assigned to Keit Limited
-
Patent number: 11204275Abstract: A spectrometer for detecting one or more wavelength components of sample radiation is disclosed. The spectrometer includes: a detector comprising a two-dimensional rectilinear array of pixels for generating signals representing an image based on collected sample radiation; one or more optical components arranged to form a spatial pattern based on spectral features of the sample radiation the spatial pattern including a plurality of aligned substantially parallel fringes oriented at a non-zero skew angle to the two-dimensional rectilinear array; and an analyser arranged to receive the signals and provide an output related to the one or more wavelengths. The spectrometer suppresses column/row noise in the detector. Also disclosed is a method of suppressing noise when signals are extracted and processed from detector arrays.Type: GrantFiled: June 21, 2018Date of Patent: December 21, 2021Assignee: Keit LimitedInventors: James Paul Sobol, James David Powell, Jolyon Richard Tidmarsh, David James Edmonds Denny
-
Patent number: 10845244Abstract: A common path interferometer is disclosed. The interferometer is arranged to divide an input beam into first and second beam portions directed in opposite directions around a cyclic path to form an interference pattern at a detector. The cyclic path is defined by at least two mirror regions curved in the plane of the cyclic path, such that the interference pattern represents path difference variations between the first and second beam portions. The interferometer further includes an input optic arranged in the beam path before division of the input beam into the beam portions. The input optic is configured to provide convergence to reduce the extent transversely to the plane of the cyclic path of the interference pattern at the detector. The beam and beam portions have different convergence requirements in the plane of, and transverse to the plane of, the cyclic path, which are addressed separately by the mirror regions and the input optic.Type: GrantFiled: August 17, 2017Date of Patent: November 24, 2020Assignee: Keit LimitedInventors: Timothy John Stephens, James Paul Sobol
-
Publication number: 20200191650Abstract: A spectrometer for detecting one or more wavelength components of sample radiation is disclosed. The spectrometer includes: a detector comprising a two-dimensional rectilinear array of pixels for generating signals representing an image based on collected sample radiation; one or more optical components arranged to form a spatial pattern based on spectral features of the sample radiation the spatial pattern including a plurality of aligned substantially parallel fringes oriented at a non-zero skew angle to the two-dimensional rectilinear array; and an analyser arranged to receive the signals and provide an output related to the one or more wavelengths. The spectrometer suppresses column/row noise in the detector. Also disclosed is a method of suppressing noise when signals are extracted and processed from detector arrays.Type: ApplicationFiled: June 21, 2018Publication date: June 18, 2020Applicant: Keit LimitedInventors: James Paul Sobol, James David Powell, Jolyon Richard Tidmarsh, David James Edmonds Denny
-
Publication number: 20190178715Abstract: A common path interferometer is disclosed. The interferometer is arranged to divide an input beam into first and second beam portions directed in opposite directions around a cyclic path to form an interference pattern at a detector. The cyclic path is defined by at least two mirror regions curved in the plane of the cyclic path, such that the interference pattern represents path difference variations between the first and second beam portions. The interferometer further includes an input optic arranged in the beam path before division of the input beam into the beam portions. The input optic is configured to provide convergence to reduce the extent transversely to the plane of the cyclic path of the interference pattern at the detector. The beam and beam portions have different convergence requirements in the plane of, and transverse to the plane of, the cyclic path, which are addressed separately by the mirror regions and the input optic.Type: ApplicationFiled: August 17, 2017Publication date: June 13, 2019Applicant: Keit LimitedInventors: Timothy John Stephens, James Paul Sobol