An instrument for processing and/or measuring a biological process comprises a sample processing system and an excitation source exhibiting a spectral function of output power or intensity verses wavelength of output power or intensity. The spectral function has a minima wavelength corresponding to a local minima value of the output power or intensity; a first maxima wavelength corresponding to a first local maxima of output power or intensity, the output power or intensity at the first local maxima being greater than the output power or intensity at any wavelength less than the minima wavelength; a second maxima wavelength corresponding to a second local maxima of output power or intensity, the output power or intensity at the second local maxima being greater than the output at any wavelength greater than the minima wavelength; the minima wavelength is between the first maxima wavelength and the second maxima wavelength.

In the present invention, a fluorescent substance detection system (S) for detecting fluorescent substances in any environment is provided. Said detection system (S) comprises at least one illumination unit (1) which emits light to said environment in order to excite said substances; detection units (2), at least at a number equal to the number of types of fluorescent substances, for detecting emissions coming from said excited fluorescent substances and bandpass filters (3), each connected to detection units (2) one by one, wherein bandpass filters (3) have a center wavelength matched to the center emission wavelength of corresponding fluorescent substance.

The flow cell of the present application simultaneously monitors and measures light absorbance and fluorescence of particles in a flowing liquid. The flow cell comprises a housing having a light input face, an absorbance output face and first and second emission output faces; a fluid flow section within the housing that comprises a bottom funnel through which fluid enters the flow cell, a core chamber into which fluid flows from the bottom funnel, and a top funnel into which fluid flows from the core chamber, wherein the bottom and top funnels each comprise a first end which extends at an angle to a second end that is wider in diameter than the first end, and said second end of each is adjacent to and aligned with the core chamber; and a center section within the housing center having a recess formed therein which houses the core chamber of the fluid flow section, wherein said center section comprises a first pair of opposing channels formed in the light input face and the absorbance output face, respectively, and a second pair of opposing channels formed in the first emission output face and the second emission output face and which are perpendicular to the first pair of opposing channels, and wherein the first pair of opposing channels and second pair of opposing channels are in communication with the core chamber. An apparatus comprising the flow cell is also provided.

The present disclosure, among other things, describes a reader system comprising a casing, an optical system, en electromechanical motor system, and one or more digital processors.

There is provided a light source and an automatic analyzer, which stabilize an amount of light while covering a wide wavelength band used in the automatic analyzer.

The light source of the present invention includes a substrate, a first LED provided on the substrate, and a phosphor that converts an excitation light of the first LED into a broadband light, in which the temperature sensor is embedded in the phosphor together with the first LED. Further, the automatic analyzer of the present invention includes an absorbance measuring unit having this light source, and a reaction disk on which a reaction vessel for containing a reaction solution measured by the absorbance measuring unit is mounted.

A reflectometer and method of use for measuring an amount of analyte in a sample are provided. The reflectometer can include a plurality of reading heads for obtaining reflectance information from discrete regions on a lateral flow test strip. The reflectance information is processed to obtain a digital value for the reflectance. The discrete regions can include a test zone and at least two control zones that each has a differing amount of detection moiety binding substance. The digital values for each control zone can be employed to establish a high end standard and a low end standard. The digital value for the test zone interpolated to the standards to obtain an accurate quantitative value for the analyte in the sample.

System and apparatus for portable gas detection. Specifically, this disclosure describes apparatuses and systems for optical gas detection in a compact package. There is a need for a very compact, low-power, gas detection system for gases such as CO2, NOx, water vapor, methane etc. This disclosure provides an ultra-compact and highly efficient optical measurement system based on principals of optical absorption spectroscopy. It reduces the size of the instrument as well its power consumption by more than an order of magnitude making it possible to deploy it widely. There is an identified need for large number of distributed gas sensors to improve human health, environment, and save energy usage.

Disclosed is a device for optically determining a concentration of alcohol and carbohydrates in a liquid sample. The device includes at least a first and a second light source arranged for exposing the liquid sample in a wavelength range between 750 nm and 1000 nm, a spectrometer arranged to determine a first and a second light intensity by measuring the light from the first and the second light source, a processing unit which is connected to the spectrometer and which is arranged to determine an absorption value of the liquid sample from a comparison of the first and the second light intensity with a reference value. In certain aspects, the device may further include a processing unit that calculates concentrations of alcohol and/or carbohydrates and at least two polarization filters.

A light source apparatus includes a main unit, light source modules attachable to and detachable from the main unit, and storage mediums storing characteristic information of the light source modules. Each light source module includes at least one light source and a light connection part to be optically connected to the main unit. The main unit includes entrance parts to be optically connected to the light connection parts of the connected light source modules, a light combining unit to combine light entering the entrance parts, at least one exit part to cause light combined by the light combining unit to exit, and an exit light characteristic deriving unit to derive characteristic information of achievable exit light based on characteristic information of the light source modules stored in the storage mediums.

A device for emitting electromagnetic radiation, in particular UV radiation, including at least one radiating unit that only emits radiation at visible wavelengths. The device further includes a unit for detecting a functional error of the radiating unit. In practice, the radiating unit is provided for emitting only UV radiation and/or IR radiation and is formed by a light diode. The detection unit is designed to continuously monitor the radiating unit for functional errors, and the device includes an open-loop and/or closed-loop control unit which is provided to automatically switch off the radiating unit and/or display the functional error, upon detection of the functional error by the detection unit.