Abstract:
The invention makes it possible to measure binding of a biochemical substance with a high throughput and with high sensitivity using a small cell capable of being filled with a small amount of chemical solution. A space between a first substrate and a second substrate such that probes are immobilized on their mutually facing planes is used as a cell that houses a specimen solution. Light is irradiated from a first substrate side, and reflected light is subjected to spectroscopy. Binding of the target with the probe is detected by a wavelength shift in the refection spectrum.
Abstract:
Apparatus and method to measure optical absorption spectra with spatial resolution on the micron scale. An exemplary setup combines a continuous white light excitation beam in transmission geometry with a GRIN-based detection path in place of a typical confocal microscope. The apparatus and method enables the investigation of spatial variations in the optical density of small samples on the micron scale and the study of biological assemblies at the single cell level, leading to applications in optical diagnostics, microfluidics, cytology, and other areas.
Abstract:
System and method for differentiating tissue margins in a biological sample using pulsed laser excitation and time-gated detection. A region containing a biological tissue is irradiated with substantially monochromatic pulsed laser light to thereby produce Raman scattered photons. The Raman scattered photons are detected using time-gated detection to thereby obtain a Raman spectroscopic image from the irradiated region characteristic of either a neoplastic portion or a non-neoplastic portion of the region containing the biological tissue. A boundary between a neoplastic portion and a non-neoplastic portion is differentiated and the boundary location in the Raman spectroscopic image is displayed.
Abstract:
A device for multi-photon fluorescence microscopy for obtaining information from biological tissue is provided. The device comprising a laser unit for generating an excitation radiation, an optical unit which is formed to focus the excitation radiation for generating an optical signal at different locations in or on an object to be examined, and a detector module for detecting the optical signal from the region of the object. The optical unit for generating the optical signal at different locations in or on the object is movable in at least one direction relative to the object.
Abstract:
A monitoring device by laser shadowscopy, which comprises a light emitter (5) and receiver (6), mounted on an arm (8) oscillating at will around two joints (13, 14), in order to restore the image of the monitored profile more accurately.An important application relates to welding methods and especially in hollow beveled edges.
Abstract:
The present invention provides for an interface mechanism in a bio-separation instrument that makes interface connections to a multi-channel cartridge. The interface mechanism precisely positions the cartridge in relation to the support elements in the instrument (e.g., high-voltage, gas pressure, incident radiation and detector), and makes automated, reliable and secured alignments and connections between various components in the cartridge and the support elements in the supporting instrument. The interface mechanism comprises pneumatically or electromechanically driven actuators for engaging support elements in the instrument to components on the cartridge. After the cartridge has been securely received by the interface mechanism, the connection sequence is initiated. The interface provides separate high voltage and optical connections for each separation channel in the cartridge, thus providing channel-to-channel isolation from cross talk both electrically and optically.
Abstract:
An optical subassembly for in- and/or out-coupling of electromagnetic radiation of a predetermined wavelength, especially IR-radiation, into, and/or out of, a pressure-tight housing. The subassembly includes at least one housing wall section of the pressure-tight housing having at least one opening, wherein, in the opening, mechanical setting means are provided, with which a plug transparent for the electromagnetic radiation is set, wherein the transparent plug has two mutually oppositely lying, base surfaces and a cylindrical lateral surface, and wherein the setting means include as least one setting ring, characterized in the a volume region between at least a first section of the setting ring and at least a section of the cylindrical lateral surface is filled with a pressure-tight, potting compound.
Abstract:
A system for monitoring performance of a machine for detection of visible signs of failure, the system including: a machine enclosure housing a plurality of machine parts; a visual conduit for providing a view of an interior of the machine; an interface to the machine configured to receive images from the visual conduit; and a repair network for linking the interface to a monitoring center that provides for the repair of problems with the machine.
Abstract:
Fourier domain a/LCI (faLCI) system and method which enables in vivo data acquisition at rapid rates using a single scan. Angle-resolved and depth-resolved spectra information is obtained with one scan. The reference arm can remain fixed with respect to the sample due to only one scan required. A reference signal and a reflected sample signal are cross-correlated and dispersed at a multitude of reflected angles off of the sample, thereby representing reflections from a multitude of points on the sample at the same time in parallel. Information about all depths of the sample at each of the multitude of different points on the sample can be obtained with one scan on the order of approximately 40 milliseconds. From the spatial, cross-correlated reference signal, structural (size) information can also be obtained using techniques that allow size information of scatterers to be obtained from angle-resolved data.
Abstract:
A system for monitoring performance of a machine for detection of visible signs of failure, the system including: a machine enclosure housing a plurality of machine parts; a visual conduit for providing a view of an interior of the machine; an interface to the machine configured to receive images from the visual conduit; and a repair network for linking the interface to a monitoring center that provides for the repair of problems with the machine.