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 disclosure relates to a portable system having a fiber array spectral translator ("FAST") for obtaining a spatially accurate wavelength-resolved image of a sample having a first and a second spatial dimension that can be used for the detection of hazardous agents by irradiating a sample with light, forming an image of all or part of the sample using Raman shifted light from the sample, and analyzing the Raman shifted light for patterns characteristic of one or more hazardous agents.
Abstract:
A multitasking optical fiber probe (10) for collecting dosimeter information from more than one position in a sample. The basic principle of the present invention involves using one or more different sensor zones (20,22,24,26,28,30) along the length of the fiber (14) each with a different photoactive constituent having a sufficiently unique emission spectra (spectral or temporal) to enable deconvolution of the emission spectra by the computer (46) and therefore correlation of the detected parameter with the position of the sensor zone along the length of the optical fiber. In the broadest form of the invention the probe is embodied by only one sensor zone located at some point along the length of the fiber spaced away from the end face of the fiber. More than one different photoactive constituent could be incorporated into a single sensor zone for measuring several factors in the vicinity of the sensor zone.
Abstract:
A food integrity probe design comprising two illumination fiber rings, allowing for two different simultaneous measurements wherein the inner illumination ring generates a surface reflectance signal on the central detection fibers and the outer illumination ring allows for an additional interactance measurement, probing deeper into the sample than the surface reflectance alone while partially eliminating specular reflection, which reduces the signal quality, through the addition of a ring-shaped diffusor onto the inner illumination ring is disclosed.
Abstract:
According to various embodiments, an optical arrangement may be provided. The optical arrangement may include: a bifurcated fiber comprising a distal end and a bifurcated end; wherein the bifurcated end comprises a first end configured to be connected to a spectrometer and a second end configured to be connected to an illuminator; wherein the bifurcated end is connected to the distal end via a l-to-2 spliced fiber.
Abstract:
Die Erfindung betrifft eine Anordnung (01) zur Untersuchung einer mittels elektromagnetischer Strahlung (07) anregbaren Probe (10). Die Anordnung umfasst einen ersten dichroitischen Strahlteiler (02) mit einem ersten und einem zweiten Prisma (03a, 03b), welche an ihren Basisflächen miteinander verbunden sind, und eine zwischen den Basisflächen der beiden Prismen (03a, 03b) angeordnete dichroitische Schicht (04), wobei eine Eintrittsfläche (06) des ersten Prismas (03a) mit der dichroitischen Schicht (04) einen Winkel (β) im Bereich von 10° bis
Abstract:
In one embodiment, an optical spectroscopy probe includes an optical fiber having a distal tip and a microfluidic filtering chamber attached to the distal tip of the optical fiber, the chamber comprising a microfluidic membrane adapted to enable liquid to enter the chamber but prevent particles from entering the chamber.
Abstract:
La présente invention concerne un dispositif d'imagerie, comprenant: un module d'illumination (1) comprenant des moyens pour émettre au moins un faisceau d'excitation; un module de balayage et d'injection (2) comprenant un guide d'image (3) dont deux extrémités respectivement proximale (3a) et distale (3b) sont reliées par une pluralité de fibres optiques, et des moyens (6) de balayage et d'injection agencés pour injecter l'au moins un faisceau d'excitation tour à tour dans une fibre du guide d'image (3) et du côté proximal (3a) du guide; un module de détection (4) comprenant des moyens pour détecter un flux lumineux (14) collecté à l'extrémité distale (3b) du guide. Au moins un parmi le module d'illumination (1) et le module de détection (4) est conjugué optiquement au module de balayage et d'injection (2) par une fibre optique de conjugaison (5, 7). L'utilisation de fibres de conjugaison (5, 7) permet d'améliorer la maintenance, la réparation et la mise à jour du dispositif, et peut en outre permettre de réaliser un filtrage modal du faisceau d'excitation et d'assurer la confocalité du dispositif.
Abstract:
The disclosure relates generally to methods and apparatus for using a fiber array spectral translator-based ("FAST") spectroscopic system for improved imaging, spectral analysis, and interactive probing of a sample. In an embodiment, the confocality of a fiber array spectral translator-based spectroscopic system is improved through the use of structured illumination and/or structured collection of photons. User input may be received and acted upon to allow a user to interactively in real time and/or near real time view and analyze specific regions of the sample.