Abstract:
The invention relates to an optical sensor comprising at least one detection module which comprises an organic light emitting diode (1) and an organic detection photodiode (2, 2a) for measuring emitted light which during the use of the sensor reaches the photodiode via the sample holder. Optionally, a sensor according to the invention further comprises a plastic waveguide.
Abstract:
An optical instrument for simultaneously illuminating two or more spaced-apart reaction regions (40) comprises an area light array of light emitting diodes (10).
Abstract:
An optical instrument is provided for simultaneously illuminating two or more spaced-apart reaction regions with excitation beams generated by a light source. The light source can include an area light array of light emitting diodes, one or more solid state lasers, one or more micro-wire lasers, or a combination thereof. According to various embodiments, a Fresnel lens can be disposed along a beam bath between the light source and the reaction regions. Methods of analysis using the optical instruments are also provided.
Abstract:
A device, system and method for portable fluorescence detection. The portable device of the present invention features a low power light, in which a wavelength range is defined as at least one wavelength of light. The light source is preferably highly energy efficient, such that a majority of the electrical power which is consumed is then converted into transmitted light. The emitted light from the excited fluorophore is then preferably detected with any low cost and low power photodetector. Although optionally a highly sensitive optical detector may be used, preferably fluorescence is detected with any light sensing device, such as a regular photodiode or a CCD (charge-coupled device) sensor for example.
Abstract:
An instrument may include an array of sample wells, a plurality of samples arranged in the array of sample wells, a plurality of light sources, a plurality of detectors, a plurality of lightpipes arranged between the plurality of samples and the plurality of detectors, and a plurality of lightpipes arranges between the plurality of light sources and the plurality of detectors. The samples include a plurality of detectable markers being capable of generating increased emission due to a presence of a target component in the sample. The detectable markers have a respective excitation wavelength range and a respective emission wavelength range. The light sources are capable of emitting a plurality of excitation wavelength ranges toward the plurality of samples to respectively excite the detectable markers. The detectors are capable of detecting an emission wavelength range emitted from the detectable markers.
Abstract:
An instrument is described that includes an array of sample wells (10), a plurality of samples (12) arranged in the array of sample wells, a light source (16), a plurality of detectors (18), a light dividing device, and a plurality of light pipes (24) arranged between the plurality of detectors and the plurality of samples. The samples include a plurality of detectable markers that are capable of generating increased emission due to a presence of a target component in the sample. The detectable markers have a respective excitation wavelength range and a respective emission wavelength range. The light source is capable of emitting excitation wavelength ranges toward the samples to respectively excite the detectable markers. The detectors are capable of detecting an emission wavelength range emitted from the detectable markers. The light dividing device is configured to divide light from the light source between the sample wells of the array of sample wells.
Abstract:
An instrument comprises a reaction region holding assembly (48) including wells for holding a plurality of spaced-apart reaction regions (40) and a light emitting source (10) adapted to direct excitation beams (15) toward the plurality of reaction regions and to simultaneously illuminate two or more of the spaced-apart reaction regions. The light emitting source includes an array of light emitting diode sources that are arranged in groups, wherein different groups of predetermined numbers of light emitting diode sources are configured to emit different excitation frequencies. The instrument further includes a collimating lens system (20) disposed along the path of excitation beams between the light emitting source and the plurality of reaction regions wherein the collimating lens system is capable of collimating the excitation beams emitted from the light emitting source into two or more spaced-apart bundles of collimated excitation beams (25) and wherein the instrument is capable of directing each of two or more bundles of collimated excitation beams toward a respective reaction region of the plurality of reaction regions.
Abstract:
The invention relates to a method and at least one arrangement for detecting biological and/or chemical substances. A light beam or a light bundle generated by a pumped light energy source with an excitation wavelength λ Α is directed onto a carrier substrate, on which an optical function structure in the form of an organic luminous means is situated, on which in turn the substance(s) to be detected is/are deposited in a suitable form, such that the difference wavelength λ ΔΑ or X R produced as a result of absorption and changed diffraction optical properties is captured using a suitable receiver, and an evaluation unit that is coupled thereto is used to detect the substances on the basis of a data comparison system. The organic phosphor is preferably at least one organic distributed feedback laser (DFB laser). The method and a special arrangement can also be used to detect a specific substance using individual laser pixels (2P).
Abstract:
A biochip (1) for the detection of at least one analyte in a biological sample, comprising: - a transparent substrate (2) provided with a first surface (3) and a second surface (4), - a first thin film of transparent conductive material (5) positioned on the first surface (3) of the substrate (1), - a second thin film of transparent conductive material (6) positioned on the second surface (4) of the substrate (2), - a light source (7) positioned in direct contact with the first thin film of transparent conductive material (5), and - a microfluidic system (8) positioned in direct contact with the second layer of thin film of transparent conductive material (6), where the microfluidic system (8) is constituted by a material with low thermal resistance.
Abstract:
The invention relates to an in-line optical method of inspecting transparent or translucent objects (2) running at high speed between a light source (3) and means (4) for taking images of the objects and for analyzing the images taken, so as to detect defects in the objects. According to the invention the method consists: in controlling the single light source (3) so that said source produces in succession two types of illumination for each object running past said source, the first type being a homogenous illumination whereas the second type is formed from alternate dark zones and light zones with a discontinuous spatial variation; in taking images of each running object when each of them is illuminated in succession by the two types of illumination; and in analyzing the images taken with the illuminations of the first and second types for the purpose of detecting high-contrast defects and low-contrast defects respectively.