Abstract:
A material analytical sensor includes an emitter that irradiates a material with irradiation light including a wavelength region related to estimation of an amount of a component of the material, a controller that controls an irradiation cycle of the irradiation light, a receiver that receives reflected light from the material to output as a pulse signal and receives disturbance light to output as a noise signal, an integrator that samples N pulse signals during a predetermined period and integrates the sampled N pulse signals to obtain a first integrated value, and samples N noise signals during a same period as the predetermined period with a same cycle as the irradiation cycle and integrates the sampled N noise signals to obtain a second integrated value, and an extractor that deducts the second integrated value from the first integrated value to extract an amount of the reflected light.
Abstract:
A method and apparatus are provided that interrogate, receive, and analyze full emission spectra for at least one fluorescence excitation wavelength and for at least one reflectance measurement to determine tissue characteristics and correlate same to photographic images. Further, the system and method accomplish this measurement rapidly by increasing the light throughput by integrating optics into a hand held unit and avoiding the need for a coherent fiber optic bundle being used. The method includes illuminating a first portion of a target tissue with optical energy, forming a first image of the target tissue, illuminating a second portion of the target tissue with optical energy, performing spectroscopic measurements on optical energy reflected and/or emitted by the target tissue upon illumination of the second portion of the target tissue with optical energy, and determining tissue characteristics of the target tissue based on the results of the spectroscopic measurements.
Abstract:
The system (1) has at least one Fabry-Pérot cavity (3) with an adjustable gap (E), of which a gap value known as the nominal value allows a laser beam (4) of corresponding frequency to pass through said Fabry-Pérot cavity (3), controllable piezoelectric actuation means (5A), capable of causing said gap (E) to vary, within a range of gap values including said nominal value, and a control unit (6) to control said actuation means (5A) so that it causes the gap (E) to vary in accordance with a periodic time function.
Abstract:
An optical imaging system and method including a movable pixelated filter array, a shutter mechanism to which the pixelated filter array is attached, and a controller configured to implement a data reduction algorithm. The shutter mechanism is configured to move the pixelated filter array into and out of the optical path, and the data reduction algorithm allows the controller to account for axial and/or lateral misalignment of the filter array relative to the imaging detector array or its conjugate. In certain examples, the controller is further configured to use the data reduction algorithms also to perform wavefront sensing, for example to estimate wavefront error.
Abstract:
A spectrometry apparatus includes a light incident section on which incident light from an image pickup target is made incident, an image pickup section provided on an optical path of the incident light input from the light incident section, a variable wavelength interference filter configured to transmit light having a predetermined wavelength from the incident light input from the light incident section and capable of changing the wavelength of the light to be transmitted, and a filter-position switching section configured to advance and retract the variable wavelength interference filter to and from an optical path of the incident light.
Abstract:
A Raman analyzer for analyzing light emitted from a Raman cell is provided that has a beam splitter configured to split the light emitted from the Raman cell into a first beam and a second beam. An atomic vapor filter can be used to filter a Raman scattered line from the first beam and a chopper system can periodically interrupt the first and second beams that are directed towards a photo detector, which can convert light from the first and second beams into an electrical signal. The signal output from the photo detector can optionally be amplified, digitized, Fourier filtered, and/or subjected to Fourier analysis.
Abstract:
A method and system for playing jackpot and casino games are provided, comprising dealing cards to a player hand and a bank hand according to a set of conventional casino game rules, allowing at least a first player to place a bet on the casino game, granting a right of first refusal to place a bet on jackpot to the first player by virtue of the first player's bet on the casino game, allowing the first player to exercise the right of first refusal to bet on the jackpot or at least a second player to place a bet on the jackpot if the first player declines the right to place a bet on the jackpot, determining the outcome of the live casino game according to the set of conventional casino game rules, and determining the outcome of the jackpot according to a combination of cards.
Abstract:
Systems and methods for measuring a target in a sample, the target being capable of generating an emitted light in response to an excitation light. In an example system, an excitation light source generates the excitation light along an excitation optical path. An attenuation filter arrangement selectively adds an attenuation filter to the excitation optical path. The attenuation filter attenuates the excitation light by a corresponding attenuation factor. The excitation light exits the attenuation filter arrangement along the excitation optical path to illuminate the sample. A light energy detector receives the emitted light generated in response to the excitation light, and outputs a measured signal level corresponding to an emitted light level. If the light energy detector indicates an overflow, signal measurement is repeated with attenuation filters of increasing attenuation factors until the measured signal level does not overflow.
Abstract:
The present subject matter relates to an apparatus and related method of high-speed analysis of product samples during production of the product. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward optical detectors. Signals from the optical detectors are compared to determine characteristics of the product under analysis. Temperature within the monitoring system may be monitored in order to provide compensation for the signals produced by the optical detectors. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.