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6151112 |
High-resolution, compact intracavity laser spectrometer
In accordance with the present invention, a high-resolution, compact spectrometer is provided for dispersing wavelengths λ of an incoming beam for detection by a detector. The spectrometer...
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6147761 |
Color sensor
A sensor for measuring reflective, transmissive, or self-luminous samples, comprises a plurality of light sources, where each of the light sources emit light of a substantially different wavelength...
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6138082 |
Standardizing between analytical instruments
For conversion of spectral information of an FTIR spectrometric instrument for comparison with that of a dispersion instrument, a first standard function is selected for spectral line shape for the...
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6137108 |
Instrument and method for spectroscopic analysis by reflectance and transmittance
A probe for a spectrometer has a slot for receiving a sample, an illuminating fiber optic bundle directing light to the sample in the slot, and first and second collecting fiber optic bundles...
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6128079 |
Fiber optic probe and system for measurement of moisture in steam turbines
There is described a fiber optic probe and associated system for measuring light extinction due to forward scattering by steam droplets. A system is also described for analyzing the light...
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6128078 |
Radiation filter, spectrometer and imager using a micro-mirror array
A spectrometer (10) includes a two-dimensional array of modulatable micro-mirrors (18), a detector (20), and an analyzer (22). The array of micro-mirrors is positioned for receiving individual...
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6122052 |
Computer operated spectrometric instrument and associated calculator
A spectrometric instrument passes flashing light through a sample and has a linear detector operated by the computer to integrate signals for an established number of flashes to obtain an...
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6118542 |
Method and apparatus for determination of a quality property of a piece of meat
The invention relates to a method for determination of a quality property of a piece of meat. A light reflection measurement probe is inserted into a muscle of the piece of meat, while the muscle...
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6118530 |
Optical scanning spectrometer
A reference system for an optical wavelength scanner, used for measuring wavelengths of radiation from an optical device. The system utilizes a wavelength reference comprising a fixed fiber...
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6118119 |
Spectral analyzer with wavelength and direction indicator
A device for simultaneously determining the direction and wavelength of an incident light beam. The device includes a transparent block and a diffraction grating for diffracting the incident light...
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6108083 |
Spectroscopic systems for the analysis of small and very small quantities of substance
A spectroscopic system for the analysis of small quantities of substances makes use for the purposes of energy transfer of cone-shaped aperture changers which are arranged in the object zone...
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6104488 |
Multi-octave spectroscopy with multi-waveband infrared focal plane array
Spectra corresponding to overlapping grating orders are focused onto a multi-waveband focal plane array in order to create spectral images of a scene simultaneously in multiple wavelength regions....
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6100975 |
Raman spectroscopy apparatus and method using external cavity laser for continuous chemical analysis of sample streams
Raman spectrometer for analyzing the chemical composition of sample streams using an external cavity laser light source is disclosed. The laser provides an effective light source useful in...
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6100974 |
Imaging spectrometer/camera having convex grating
An imaging spectrometer has fore-optics coupled to a spectral resolving system with an entrance slit extending in a first direction at an imaging location of the fore-optics for receiving the...
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6094271 |
Wavelength measuring system
A wavelength measuring system includes a lens for converting an outgoing light beam from an input fiber into parallel light rays, a first wavelength dispersion element disposed on the optical axis...
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6081331 |
Spectrometer
A spectrometer having an optical arrangement for capturing light to be measured and the separation of the light into spectral portions with a light entry, a reflecting diffraction grating and an...
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6078048 |
Immersion echelle spectrograph
A small spectrograph containing no moving components and capable of providing high resolution spectra of the mid-infrared region from 2 microns to 4 microns in wavelength. The resolving power of...
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6075595 |
Spectrometer
The present invention concerns an LED spectrometer operating without moving parts according to the sweep principle, and appropriate to serve as a structural component in many kinds of spectroscopic...
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6075594 |
System and method for spectroscopic product recognition and identification
A system and method for optically identifying a product from a reference library of known products based on a reflected spectrum of the product. A broad wavelength light source illuminates the...
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6069696 |
Object recognition system and method
An object recognition system comprises a sensing apparatus for collecting light reflected from objects presented at a point-of-sale machine. The sensing apparatus includes a mechanism, such as a...
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6061129 |
Compact high resolution grating spectrometer
A compact high resolution grating spectrometer. A beam of expanding light from a light source is collimated and the collimated beam is expanded with a beam expander before illuminating a reflecting...
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6049762 |
Standardizing a spectrometric instrument
Standardization is achieved for FTIR spectrometric instruments that effect an intrinsic distortion in spectral information, the distortion being associated with an aperture size. An idealized...
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6049387 |
Process for determining the condition of a road surface and system for implementing the process
In a process and apparatus for determining the condition of a road surface, light backscattered from a road surface is divided into spectral components and the spectral intensity distribution of...
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6046808 |
Radiation filter, spectrometer and imager using a micro-mirror array
A spectrometer (10) includes a two-dimensional array of modulatable micro-mirrors (18), a detector (20), and an analyzer (22). The array of micro-mirrors is positioned for receiving individual...
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6040907 |
Microscope system for the detection of emission distribution and process for operation of the same
A microscope system for detecting the emission distribution of specimens which emit light at least in a punctiform manner, particularly for failure analysis of integrated circuits, comprises an...
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6038023 |
Sensors for detection and spectroscopy
For multicolor fluorescence detection or spectroscopy with low signal-to-noise ratio and rapid readout, signals from multiple sensors are combined in analog form so that only one signal per...
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6034767 |
Monochromator and optical analyzing device using the same
A monochromator according to the present invention has an arm 1 rotatably mounted on a rotation shaft 3, and a diffraction grating 6 is fixed to the arm 1. The arm 1 is rotated by a linear motor 9...
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6031608 |
Spectroscopic instrument with offset grating to improve focus
In a spectroscopic instrument having a spherical grating to disperse incident light into a spectrum, the grating is oscillated on axis to scan the light passing through an exit slit through the...
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6029115 |
Analyzing spectrometric data
A spectrometric instrument includes a detector with detecting subarrays on small portions of the surface. Spectral data are acquired for selected subarrays at a first time for a drift standard, and...
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6028667 |
Compact and robust spectrograph
A spectrograph for analyzing the chemical composition of a sample is disclosed. Scattered light from a sample cell is collected by one or more optical fibers and is introduced into a collimating...
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6028310 |
Linear cavity laser system for intracavity laser spectroscopy
Contaminants are detected optically at concentrations below 100 part-per-million (ppm) and extending to a level approaching 1 part-per-trillion (ppt) by using intracavity laser spectroscopy (ILS)...
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6023330 |
Centered sphere spectrometer
A detection system for an atomic emission spectrometer includes a spherical convex diffraction grating having a radius of curvature which is one-half the radius of curvature of a pair of concave...
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6005661 |
Optical system with wide measuring ranges
The invention concerns an optical system for use in spectrometry and/or endoscopy, in which at least one probe is exposed to directional radiation produced by a radiation source, the radiation...
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5995645 |
Method of cancer cell detection
A method for cancer cell detection including the steps of (a) staining an analyzed sample with at least first and second dyes, the dyes being selected such that the first dye better adheres to...
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5991049 |
Transparent substrate having rain sensor
A front windshield 1 having a rain sensor 2 for detecting the adhesion or presence of water drops W upon one side surface thereof, depending upon variation in an amount of reflected light, wherein...
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5991025 |
Near infrared spectrometer used in combination with an agricultural implement for real time grain and forage analysis
An apparatus and method for combining NIR spectography with an implement including a combine or a chopper for measuring major constituents of harvested products in real time includes a...
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5978110 |
Holographic optical grating and method for optimizing monochromator configuration
This invention comprises a novel apparatus for recording a holographic groove pattern on a diffraction grating blank. The recording apparatus is configured using newly developed groups of...
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5976882 |
Method for measuring ash content of food stuff
A method for measuring ash content of food stuff is carried out by 1) preparing, with respect to food stuff samples whose ash content values are known, a calibration curve by a non-linear analysis...
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5973822 |
Acousto-optic tunable filter and method of calculating its equivalence incident angle
In a non-collinear type acousto-optic tunable filter, the incident angle of a source light beam L 1 radiated from a light source 6 onto an acoustic medium 1 is set at an equivalence incident angle...
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5973780 |
Echelle spectroscope
An echelle spectroscope has one or more echelle diffraction gratings, one or more elements for separating dispersed light into portions corresponding to different orders of diffraction and one or...
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5969834 |
Method and apparatus for monitoring wavelength multiplexed optical signals
One method of determining the signal to noise ratio of an optical signal models the noise floor based on amplified spontaneous emission (ASE) which is accumulated along the link. The ASE wavelength...
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5963333 |
Color sensor
A hand-manipulatable device includes a sensor for gathering reflective, densitometric, spectrophotometric, colorimetric, self-luminous or radiometric readings from a sample surface. The device...
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5963320 |
Active spectrometer
A grating spectrometer employing digital control of an oscillating component (a mirror) and phase-locked digital recording of the intensity profile within the narrow spectral domain defined by an...
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5952234 |
Apparatus for measuring ash content of food stuff by ultraviolet radiation
A method for measuring ash content of food stuff is carried out by 1) preparing, with respect to food stuff samples whose ash content values are known, a calibration curve by a non-linear analysis...
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5949578 |
Reflective grating for optical diffraction, and manufacturing methods
A reflective grating for the optical diffraction of light rays comprises k juxtaposed, grooved, plane sub-gratings, the planes of the sub-gratings being offset in terms of height with respect to...
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5949541 |
Spectrophotometer system
In order to reduce the size of a spectrophotometer having a rotatable diffraction grating and to compensate for longitudinal chromatic aberration and to provide for triangular bandwidth (where the...
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5943122 |
Integrated optical measurement instruments
A measuring instrument with a parfocal combination of an ultra-violet to near-infrared (UV-NIR) spectrophotometer and a Fourier Transform Infrared (FTIR) spectrometer is disclosed. The parfocal...
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5933235 |
Optical spectrum analyzer and spectrometer
A first invention of the present application is an optical spectrum analyzer comprising a spectrometer apparatus an arithmetic unit for calculating the center wavelength from output signals from...
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5926280 |
Fire detection system utilizing relationship of correspondence with regard to image overlap
A fire detection system extracts fire (flame) portions from images produced by a monitoring camera while eliminating portions depicting artificial light sources. Portions depicting a light source...
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5926272 |
Spectroscopy
A system for spectroscopic monitoring that includes a broadband source of radiation, structure defining a non-elongate entrance aperture for receiving radiation to be analyzed along a first path;...
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