Abstract:
Analysis methods and apparatus are provided for inspecting a channel, such as a capillary electrophoresis channel, in a device. Configuration and alignment systems are provided, together with optical systems and temperature control.
Abstract:
The present invention regards methods and devices for detecting plaque on a surface in the oral cavity to which a fluorescent agent capable of binding to plaque has been applied, whereby a radiation source emits incident radiation for contacting the surface, reflected light and fluorescent emission resulting from contact of the radiation with the surface is collected by an optical collector and conveyed by an optical pathway in the device, where the optical light signal of the reflected light and fluorescent emission is converted to an electrical signal, and where the electrical signals of the fluorescent emission and the reflected light are then mathematically manipulated to provide a compensated plaque value as a function of the distance from the optical collector and the surface of the oral cavity to which the fluorescent agent has been applied.
Abstract:
A biological observation apparatus comprising: an illuminating section that irradiates light to a living body that is a subject to be examined; an image pickup section that photoelectrically converts light reflected from the living body based on the irradiating light and creates an image pickup signal; and a signal processing control section that controls operations of the illuminating section and/or the image pickup section and outputs the image pickup signal to a display device, wherein the signal processing control section includes: a spectral signal creating section that creates a spectral signal corresponding to an optical wavelength narrowband image from the image pickup signal through signal processing; and a color adjusting section that, when outputting the spectral signal to the display device, allocates a different color tone for each of a plurality of bands forming the spectral signal, further wherein the biological observation apparatus further comprises an image quality adjusting section that adjusts an image quality of a signal to be outputted to the display device, or, with the exception of at least the spectral signal creating section and the color adjusting section, the other signal processing sections are shared for respective signal processing on the image pickup signal and on the spectral signal.
Abstract:
An imaging device includes an illumination module comprising at least one emitter for emitting at least one excitation beam; a scanning and injection module comprising an image guide, a proximal end and a distal end of which are linked by a plurality of optical fibers; a scanning and injection optical system configured to alternately inject the at least one excitation beam into an optical fiber of the image guide from the proximal end of the image guide; a detection module comprising a detector for detecting a luminous flux collected at the distal end of the image guide, wherein at least one of the illumination module and the detection module is optically conjugated with the scanning and injection module using a conjugating optical fiber.
Abstract:
A microsphere-based analytic chemistry system is disclosed in which self-encoding microspheres having distinct characteristic optical response signatures to specific target analytes may be mixed together while the ability is retained to identify the sensor type and location of each sensor in a random dispersion of large numbers of such sensors in a sensor array using an optically interrogatable encoding scheme. An optical fiber bundle sensor is also disclosed in which individual microsphere sensors are disposed in microwells at a distal end of the fiber bundle and are optically coupled to discrete fibers or groups of fibers within the bundle. The identities of the individual sensors in the array are self-encoded by exposing the array to a reference analyte while illuminating the array with excitation light energy. A single sensor array may carry thousands of discrete sensing elements whose combined signal provides for substantial improvements in sensor detection limits, response times and signal-to-noise ratios.
Abstract:
A microsphere-based analytic chemistry system is disclosed in which self-encoding microspheres having distinct characteristic optical response signatures to specific target analytes may be mixed together while the ability is retained to identify the sensor type and location of each sensor in a random dispersion of large numbers of such sensors in a sensor array using an optically interrogatable encoding scheme. An optical fiber bundle sensor is also disclosed in which individual microsphere sensors are disposed in microwells at a distal end of the fiber bundle and are optically coupled to discrete fibers or groups of fibers within the bundle. The identities of the individual sensors in the array are self-encoded by exposing the array to a reference analyte while illuminating the array with excitation light energy. A single sensor array may carry thousands of discrete sensing elements whose combined signal provides for substantial improvements in sensor detection limits, response times and signal-to-noise ratios.
Abstract:
A hollow-core photonic crystal fiber gas cell and method for preparing the same. The hollow-core photonic crystal fiber gas cell comprises a single-mode fiber, a fiber splicing protection sleeve, a hollow-core photonic crystal fiber, and a photoelectric detector. One end of the single-mode fiber is fusion spliced with one end of the hollow-core photonic crystal fiber to form a fusion splice and seal one end of the hollow-core photonic crystal fiber gas cell. The fiber splicing protection sleeve covers and protects the fusion splice. The other end of the hollow-core photonic crystal fiber is processed into an output end by fusion sealing, and the surface of the output end faces, but is not parallel to, a detection surface of the photoelectric detector.
Abstract:
The invention relates to a system (1) for confocal Raman-spectroscopic measurements, comprising at least the following components: - a sample chamber (10), wherein said sample chamber (10) is configured to house a sample (2) in a closed chamber volume (12) of the sample chamber (10), - an excitation light source (3), - an objective lens (4), configured to focus excitation light (32) of the excitation light source (3) through a ceiling portion (11) of the sample chamber (10) in a focal volume (31) in the chamber volume (12) and to collect inelastically scattered light (33) stemming from the focal volume (31), - a confocal detection arrangement (20), comprising means for a confocal detection (22, 23) of a Raman signal comprised in the inelastically scattered light (33) from the focal volume (31), and a detector (21) that is configured to detect and to record said Raman signal, wherein the distance (5) between the ceiling portion (11) of the sample chamber (10) and the focal volume (31) is greater than one millimetre during operation of the system (1).
Abstract:
A microspectroscope (101) includes: a light source (11, 17); a plurality of light projecting optical fibers (12) that receive light from the light source (11, 17); a spectroscope (1); a plurality of light receiving optical fibers (22) for guiding received light to the spectroscope (1); and a confocal optical system (5) for causing each of a plurality of beams from the plurality of light projecting optical fibers (12) to be condensed and irradiated onto a sample, and forming images of a plurality of beams from a plurality of condensing points on the sample, respectively on the plurality of light receiving optical fibers (22).
Abstract:
An SPR sensor cell is an SPR sensor cell including an optical waveguide to be brought into contact with a sample. The optical waveguide includes an under clad layer, a core layer provided in the under clad layer such that at least a part thereof is exposed from the under clad layer, and a metal particle layer covering the core layer exposed from the under clad layer to be brought into contact with the sample.