A controller includes a specifying part and a reception part. The specifying part specifies positions where the illumination units are connected. The reception part presents a lightable area and an unlightable area in different modes based on the positions where the illumination units are connected, the positions being specified by the specifying part. The reception part receives settings of the lighting conditions for the lightable area.

An optical sensor device for detection of a characteristic of a liquid substance comprises a device body having an inner surface and an outer surface, one portion of the outer surface of the device body being designed to be in contact with the liquid substance, and the inner surface of the device body being designed to be isolated from the liquid substance.

Associated to the device body is a detection arrangement, which comprises an emitter and a receiver of a given optical radiation. A first portion of the device body is made of a material designed for propagation of the given optical radiation, the emitter and the receiver being optically coupled to the inner surface of the device body in the first portion. The first portion of the device body is shaped to contribute to propagation of the given optical radiation, from the emitter to the receiver, in such a way that the given optical radiation is propagated through the first portion of the device body towards the receiver, at an angle and/or with an intensity that are/is variable as a function of a characteristic of the liquid substance.

The detection arrangement comprises an optical module, which includes a structure for support and electrical connection of the emitter and the receiver, which is configured as a part separate from the device body. The supporting and electrical-connection structure includes a plurality of bodies made of electrically insulating material overmoulded on electrical-connection elements made of electrically conductive material.

This invention provides a vision system camera assembly that includes an optics and illumination module that is removably attached thereto, and that is arranged to project illumination along an optical axis of the imager. This arrangement allows for short exposure time and a short working distance from an imaged scene/surface under inspection. A semi-reflecting mirror turns a structured illumination beam from an illumination axis onto the optical axis while allowing light from the imaged scene to pass through the mirror and into the imager optics. The front end of the module contains a collimating optics that causes a collimated beam from the mirror to strike the surface at various off-axis angles. The collimating optics can include a telecentric lens assembly that can comprise a pair of stacked lenses having a perimeter that is equal to or greater than the area of interest on the surface.

Modular photoacoustic detection device comprising: a photoacoustic cell including at least two chambers connected by at least two capillaries and forming a Helmholtz type differential acoustic resonator; acoustic detectors coupled to the chambers; a light source capable of emitting a light beam having at least one wavelength capable of exciting a gas intended to be detected and which can be modulated to a resonance frequency of the photoacoustic cell; a first photonic circuit optically coupling the light source to an input face of a first of the chambers; wherein the first photonic circuit is arranged in a detachable manner in a first housing formed in the acoustic cell and emerging on the input face of the first chamber.

Description according to the present disclosure relates to an apparatus for inspecting a welding tip of a spot welding gun, and more particularly, to an apparatus for inspecting a welding tip of a spot welding gun, the apparatus enabling a user to replace a camera module swiftly and conveniently.

In one aspect of the present disclosure an optical measurement device includes a sample holder defining a sample plane, wherein the sample holder is configured to arrange a sample carrier including an array of measurement positions in the sample plane, an illumination unit configured to illuminate the sample plane, a detector and an optical imaging system configured to image the sample plane including the array of measurement positions onto the detector, the optical imaging system including two or more curved reflective elements adapted to image the sample plane onto the detector with a magnification of between 2:1 and 1:2 and the detector being configured to take an image of all measurement positions of the array of measurement positions at a time.

The invention comprises an alignment guide apparatus and a method of use thereof for aligning an imaging beam, longitudinally passing through an exit nozzle of an imaging system, to an imaging zone of a sample, includes the steps of: (1) providing an alignment guide, the alignment guide comprising: (a) a guide wall at least partially circumferentially enclosing an aperture, (b) a first laser element connected to the guide wall, and (c) a second laser element connected to the guide wall; (2) inserting the exit nozzle of the imaging system into the aperture; (3) projecting a first line from the first laser element onto the sample; (4) projecting a second line from the second laser element onto the sample; and (5) moving the sample relative to the exit nozzle of the imaging system to position an intersection of the first line and the second line at the imaging zone to align the imaging beam to the imaging zone.

Analysis systems and methods for testing a biological sample is provided, wherein the inclination is monitored and/or a light strip is provided as a display apparatus that signals an operating state or a requirement.

Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.

A protective sheet fixing jig fixes the protective sheet placed on the stage. The protective sheet fixing jig includes: an upper plate pressing the protective sheet on the stage to tightly fix the protective sheet to the stage; a post disposed at a side of the stage and connected with the upper plate; a bracket facing the upper plate and connected with the post; and a fixing part fastened to the bracket to press a lower surface of the stage.