Aspects relate to an optical fluid analyzer including a fluid cell configured to receive a sample fluid. The optical fluid analyzer further includes optical elements configured to seal the fluid cell on opposing sides thereof and to allow input light from a light source to be sent through the fluid cell and output light from the fluid cell to be input to a spectrometer. The optical fluid analyzer further includes a machine learning (ML) engine, such as an artificial intelligence (AI) engine, that is configured to generate a result defining at least one parameter of the fluid based on a spectrum produced by the spectrometer.

Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.

Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.

A device for optically identifying surfaces, in particular for optically identifying structured and/or pictorial surfaces, spaces and/or e.g. paintings or sculptures is simple to use independently of the location. For this purpose, the device includes a housing in which light-emitting and light-receiving elements are arranged, and the device also includes a first portion having at least one lens, a portion that follows the first portion in the longitudinal direction and has a screen, and an adjoining handle portion.

A well plate cover includes a base defining a base plane, and a plurality of insertion elements. At least a portion of each of the insertion elements is transparent. Each of the insertion elements is coupled to the base, and extends, in a direction orthogonal to the base plane, from the base to a distal end surface of the insertion element. The distal end surface of each of the insertion elements includes an apex that, when the respective insertion element is inserted into a well of a well plate, extends further into the well than any other portion of the distal end surface. The apex is a point, a line, or a plane having a diameter that is less than one half of a maximum diameter of the distal end surface.

A single-shot Mueller matrix polarimeter (1700), MMP, comprising: a polarization state generator (1706), PSG, arranged to receive a source optical field (1704) and provide a probe field (1708) having a plurality of spatial portions, each portion having a different polarization state; a polarization state analyser (1718), PSA, arranged to receive a modified probe field (1716) resulting from interaction of the probe field generated by the PSG with a sample under investigation, and further arranged to apply, to each of a corresponding plurality of spatial portions of the modified probe field, a plurality of retardances and a plurality of fast axis orientations; and a detector (1720) arranged to detect an output (1722) of the PSA.

A lateral flow test strip reader for reading an output of a lateral flow assay to determine a presence or absence of a target in a sample includes: a housing having a lateral flow test strip receptacle for receiving a lateral flow test strip therein, the lateral flow test strip receptacle defining a test region and a control region for a lateral flow test strip; a light source that generates an excitation light beam; at least one lens for optically expanding the excitation light beam in a direction across the test region and the control region such that the excitation light beam is configured to simultaneously impinge and excite both the test region and the control region; and an optical detector configured to simultaneously detect an image comprising emission signals from the test region and the control region, wherein the detected emission signals indicate a presence or absence of a target in the sample.

Provided is an optical cap component that can give good sensitivity to an infrared light absorption-based optical gas sensor. An optical cap component includes: a window member formed of a lens-shaped infrared transmitting glass; and a cap member including a cylindrical sidewall portion having openings on both a distal end side and a base end side, wherein the window member is fixed to cover the opening on the distal end side of the cap member.

A flow cell device including a spherical optical element is disclosed. The spherical lens can be sealed to the body of the flow cell device in a manner that provides external optical access to a fluid in an analysis region of a flow path through the flow cell device. The seal can be provided by an elastomer, a polymer, or a deformable metal. The disposition of the spherical lens to the flow path enables in situ optical analysis of the fluid. An optical analysis device can be removably connected to the flow cell device to provide the optical analysis. In some embodiments the optical analysis device is a portable Raman spectrometer. The flow cell device can provide a supplementary interrogation interface, and/or an on board sensor device(s) to enable multivariate analysis and/or advanced triggering.

Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.