Abstract:
A sample analyzer has an illuminator for illuminating an assay sample to cause luminescence, and a support for a sample vessel containing the assay sample. The support is adapted to position the assay sample proximate the illuminator. A detector is positioned along an optical axis extending from the illuminator, through the positioned assay sample, to the detector, so as to detect the luminescence from the assay sample. A reflector is removably disposed between the illuminator and the assay sample so as to reflect a portion of the luminescence back through the positioned assay sample toward the detector.
Abstract:
The present invention relates to a system for measuring the hemoglobin concentration in whole blood, wherein the system comprises: a light-radiating unit including a light source that emits two types of incident light having different wavelengths; a diffusion unit which diffuses the incident light emitted by the light-radiating unit; a cuvette-holding unit which is formed so as to hold a cuvette including a blood sample; a detection unit which detects each absorbance of the two types of incident light having different wavelengths; a processing unit which determines the hemoglobin concentration in the blood by processing the measured absorbance result; and a control unit which regulates the two types of incident light having different wavelengths in order to repeatedly/sequentially radiate same. Although the system for measuring hemoglobin in whole blood of the present invention uses a small amount of whole blood, it is possible to measure the total hemoglobin concentration in an accurate and reliable manner. The system of the present invention aligns the paths of two types of incident light having different wavelengths passing through a microcuvette by using a diffuser plate so as to easily align a light source and increase the reliability of the results. Also, the system of the present invention uses two wavelengths so as to rapidly and accurately measure the total amount of hemoglobin, including oxidized and reduced hemoglobin.
Abstract:
The invention relates to an inspection device for monitoring containers, particularly bottles, comprising at least one transport path for supplying and removing the containers, a lighting unit, and optical measuring unit, and a control unit, wherein the lighting unit is surrounded by a transparent hollow body mounted in a rotatable fashion about the central axis, and the hollow body may be driven by a motor, either directly or via appropriate operative connections. Ideally, the hollow body is a tube made of a material or mixture of materials that is transparent to rays in the optically visible wavelength range, in the infrared range, and/or in the ultraviolet range, wherein the material is at least partially transparent to said rays.
Abstract:
Illumination apparatus for illuminating growth plates in a biological growth plate (122) scanner are described herein, the apparatus including one or more illumination modules (140) for illuminating the front surface of the biological growth plate located (122) on a plate support surface (120) in the scanner. The illumination modules may include a plurality of light emitters (142), a homogenization cavity (141), an extraction element and a concentration element to (144), e.g., improve uniformity in the illumination delivered to the biological growth plate (122).
Abstract:
An inspection apparatus can include a handset and an elongated inspection tube extending from the handset. For reduction of heat energy radiating from one or more components of the apparatus, the apparatus can include a particularly designed heat sink assembly.
Abstract:
A portable rapid diagnostic test reader system includes a mobile phone having a camera and one or more processors contained within the mobile phone and a modular housing configured to mount to the mobile phone. The modular housing including a receptacle configured to receive a sample tray holding a rapid diagnostic test. At least one illumination source is disposed in the modular housing and located on one side of the rapid diagnostic test. An optical demagnifier is disposed in the modular housing interposed between the rapid diagnostic test and the mobile phone camera.
Abstract:
A system and method for purifying an aqueous contaminated fluid from colloidal contaminants using a closed-loop feedback control system are disclosed. Contaminated fluid flows into a mixer and mixed with a purifying agent, such as diatomaceous earth, to facilitate metathesis reaction between the purifying agent and the contaminants. The purifying agent entraps the contaminants, and is subsequently removed in a separator into sediments. An estimation of the amount of the purifying agent to dispense is performed using pre-defined equations or look-up tables stored in the database, including relationship between the concentration of contaminants in the fluid and the concentration of the added purifying agent. An automated feedback control is applied to fine tune the purification process into compliance with regulations. High accuracy of measurements is ensured by selecting the same material for both the purifying agent and the trapping medium of analyzers, and additionally by the design of the analyzers.
Abstract:
An apparatus for optical examination of documents. The apparatus includes a light source, a plurality of panels which are exchangeable with each other, a viewing unit having a window formed by at least one of the plurality of exchangeable panels through which window light emitted from the light source exits for examination of documents by an observer. Further included is a coupling unit configured to supply the light emitted from the light source into the viewing unit. The light source and the viewing unit are coupled together by a light guide and the light guide is adapted to supply the light from the light source to the coupling unit. At least one of the plurality of exchangeable panels is a fluorescent panel including a fluorescent substance. The fluorescent panel is fluorescent in the yellow-red-infrared wavelength range when being illuminated with light in the ultraviolet-blue-green wavelength range.
Abstract:
Illumination apparatus for illuminating growth plates in a biological growth plate (122) scanner are described herein, the apparatus including one or more illumination modules (140) for illuminating the front surface of the biological growth plate located (122) on a plate support surface (120) in the scanner. The illumination modules may include a plurality of light emitters (142), a homogenization cavity (141), an extraction element and a concentration element to (144), e.g., improve uniformity in the illumination delivered to the biological growth plate (122).
Abstract:
The invention relates to a method and an apparatus for detecting leaded pieces of glass in a single-layer material flow of objects composed predominantly of waste glass, with the objects being irradiated with substantially monochromatic UV light (3) and the fluorescent light resulting therefrom being detected.It is provided therein that the object is additionally irradiated with visible or infrared light (4); the transmission light of the visible or infrared light (4) is detected after the passage through the object; and an object is defined as containing lead if both the fluorescent light for at least one predetermined wavelength range corresponding to the fluorescence of leaded glasses is present in a predetermined intensity range and also transmission light in a predetermined intensity range with an intensity of larger zero.