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US20110216316 MEASUREMENT OF VOLUME HOLOGRAPHIC GRATINGS  
The present invention relates to methods of measuring the optical characteristics of volume holographic gratings with high resolution and with a large spectral coverage using a spectrally broad...
US20150070697 Curved Grating Spectrometer and Wavelength Multiplexer or Demultiplexer with Very High Wavelength Resolution  
The present application discloses a system comprising a compact curved grating (CCG) and its associated compact curved grating spectrometer (CCGS) or compact curved grating wavelength...
US20150177428 DIFFRACTION GRATING AND DIFFRACTION GRATING PRODUCING METHOD  
A method for producing a blazed diffraction grating made of a crystal material of InP or InAs according to the present invention is characterized in that when the blazed diffraction grating is...
US20110299078 SPECTROMETER  
A spectrometer includes: an entrance aperture,a collimator, intended to produce, from a light source, a collimated input light (5),a plurality of gratings arranged in a 2-D matrix,a plurality of...
US20120038918 Compact Spectrometer Including a Diffractive Optical Element with Dual Dispersion and Focusing Functionality  
Embodiments of the invention provide a device called a “G-Fresnel” device that performs the functions of both a linear grating and a Fresnel lens. We have fabricated the G-Fresnel device by using...
US20120188542 SHAPED INPUT APERTURES TO IMPROVE RESOLUTION IN GRATING SPECTROMETERS  
This disclosure describes an aperture shaped to provide a narrow beam in the horizontal plane but a wider beam in the vertical plane that will provide improved image quality in spectrometers.
US20150177140 NANOSTRUCTURE DIFFRACTION GRATINGS FOR INTEGRATED SPECTROSCOPY AND SENSING  
The present disclosure pertains to metal or dielectric nanostructures of the subwavelength scale within the grating lines of optical diffraction gratings. The nanostructures have surface plasmon...
US20130114077 SPECTROMETER MINIATURIZED FOR WORKING WITH CELLULAR PHONES AND OTHER PORTABLE ELECTRONIC DEVICES  
Based on the present invention, superior compact spectrometers may be constructed and integrated into a cellular phone, or attached to a cellular phone. Such a cellular phone may be a PDA phone,...
US20100309454 SPECTROMETERS MINIATURIZED FOR WORKING WITH CELLULAR PHONES AND OTHER PORTABLE ELECTRONIC DEVICES  
Based on the present invention, superior compact spectrometers may be constructed and integrated into a cellular phone, or attached to a cellular phone. Such a cellular phone may be a PDA phone,...
US20080186487 Measuring device for optical and spectroscopic examination of a sample  
The invention relates to a measuring device (10) for optical and spectroscopic examination of a sample (34), having a housing (12), a first light source (20), a window (16), an optical...
US20140268139 HIGH RESOLUTION MEMS-BASED HADAMARD SPECTROSCOPY  
A spectrometer includes: a collimating element configured for collimating a beam of light into a first one of a cross-dispersing element and an echelle grating, the grating in optical...
US20120038919 SPECTROSCOPE  
Provided is a spectroscope that can be manufactured easily, can be reduced in size, and can provide high wavelength resolution of a specific spectral band. Specifically, provided is a spectroscope...
US20120081706 TWO MATERIAL ACHROMATIC PRISM  
A spectrometer comprises a detector array and a prism. The prism comprises a first prism element comprising a substantially crystalline crown material, and a second prism element contacting the...
US20120081705 TWO MATERIAL ACHROMATIC PRISM  
A spectrometer comprises a detector array and a prism. The prism comprises a first prism element comprising a substantially crystalline crown material, and a second prism element contacting the...
US20120062889 Echelle Grating Multi-Order Imaging Spectrometer Utilizing A Catadioptric Lens  
A cryogenically cooled imaging spectrometer that includes a spectrometer housing having a first side and a second side opposite the first side. An entrance slit is on the first side of the...
US20140233029 SPECTROMETER  
A spectrometer with a detector and a transparent body which has an entry area and an exit area on a front side of the body and a reflection grating on a rear side of the body. A beam entering the...
US20130335738 INTEGRATED OBJECTIVE GRATING CAMERA SYSTEM FOR SPECTROSCOPY  
A system for a fix-positioned camera with an internal diffraction grating for classroom and retail applications that is simple to use and inexpensive, as described in this disclosure. The...
US20120008142 METHOD FOR MEASURING CHARACTERISTIC OF OBJECT TO BE MEASURED, STRUCTURE CAUSING DIFFRACTION PHENOMENON, AND MEASURING DEVICE  
A method of attaching an object to be measured to a structure causing a diffraction phenomenon; irradiating the structure to which the object to be measured is attached and which causes the...
US20150168213 High-resolution Spectrometers Based on Substrate-guided Wave Holograms  
A SGWH-based spectrometer is disclosed that has the following advantages compared to prior art: compactness, high-resolution, high light throughput, high OOB rejection ratio, adjustability to the...
US20050256932 System for messaging using shared messaging devices  
Described are a shared messaging device and method of messaging using shared messaging devices. An electronic messaging device has a display for communicating multiple messages to consumers using...
US20100014081 Volume Phase Grating Spectrometers and Related Methods and Systems  
A Spectrometer is provided including a camera and an axial symmetric camera mount configured to receive the camera and to rotate. The spectrometer furthers include an input for providing optical...
US20100277732 SPECTROMETERS WITH ABERRATION-CORRECTED CONCAVE DIFFRACTION GRATINGS AND TRANSMISSIVE ABERRATION CORRECTORS  
The invention generally relates to spectrometers and optical systems useful therein. More particularly, the invention generally relates to optical systems and systems having improved...
US20120002198 WAVELENGTH-TUNABLE SPECTROMETER AND WAVELENGTH TUNING METHOD THEREOF  
This invention relates to a wavelength tunable spectrometer and a wavelength tuning method thereof, and more particularly to a wavelength tunable spectrometer and a wavelength tuning method...
US20120002202 DUAL WAVEBAND COMPACT CATADIOPTRIC IMAGING SPECTROMETER  
A catadioptric dual waveband imaging spectrometer that covers the visible through short-wave infrared, and the midwave infrared spectral regions, dispersing the visible through shortwave infrared...
US20130308128 Miniaturized Optical Spectrometer And Fabricating Method Thereof  
A miniature spectrometer comprises an input unit, an image capture unit, a miniature diffraction optical grating, an optical grating accommodation slot, a cushion, and an affixing plate. The...
US20110058166 SPECTROSCOPE  
The present invention provides a small spectroscope that has a short response time. A spectroscope according to one embodiment of the present invention includes: a beam deflector that includes an...
US20140118738 HYPERSPECTRAL IMAGING SYSTEM, MONOLITHIC SPECTROMETER AND METHODS FOR MANUFACTURING THE MONOLITHIC SPECTROMETER  
A hyperspectral imaging system, a monolithic Offner spectrometer, and two methods for manufacturing the monolithic Offner spectrometer are described herein. In one embodiment, the monolithic...
US20070177144 Weathering test apparatus with spectroradiometer and portable spectroradiometer  
The present invention provides a weathering test apparatus system capable of accurately monitoring deterioration of a light source used in a weathering test apparatus. According to the present...
US20120099104 SPECTROSCOPE  
The spectrometer 1 is provided with a package 2 in which a light guiding portion 7 is provided, a spectroscopic module 3 accommodated inside the package 2, and a support member 29 arranged on an...
US20110141469 SPECTROMETER  
A spectrometer 1, in which a spectroscopic unit 3 spectrally resolves and reflects light L1 having entered the inside of a package 2 while a photodetector 4 detects reflected light L2, comprises a...
US20070064231 Tuner module  
A turner module including a first carrier, a turner, a second carrier, a turner connector, a digital modulator, a digital decoder, an analog decoder and a display unit is provided. The turner is...
US20090225315 Scanning monochromator with direct drive grating  
A novel scanning monochromator uses a PM stepper-motor to directly drive a diffraction grating. By employing interpolated encoder feedback in combination with the PM stepper-motor feedback, a...
US20130188183 Optical Multiplexer/Demultiplexer  
An apparatus for optical spectrometry utilizes a simplified construction, reducing the number of independent optical elements needed while providing a sizeable dispersed spectrum. The apparatus...
US20140071449 HIGH EFFICIENCY MULTI-CHANNEL SPECTROMETER  
A multi-channel imaging spectrometer and method of use thereof. One example of the multi-channel imaging spectrometer includes a single entrance slit, a double pass reflective triplet and at least...
US20090310135 COMPACT CATADIOPTRIC SPECTROMETER  
An optical characterisation system is described for characterising optical material. The system typically comprises a diffractive element (104), a detector (106) and an optical element (102). The...
US20120026496 BANDWIDTH TUNABLE SPECTROSCOPIC DEVICE  
An electromagnetic radiation detection device is described which includes a tunable dispersive optical element configured to receive electromagnetic radiation and to change the dispersion of the...
US20080174777 Spectrometers using 2-dimensional microelectromechanical digital micromirror devices  
Echelle gratings and microelectromechanical system (MEMS) digital micromirror device (DMD) detectors are used to provide rapid, small, and highly sensitive spectrometers. The new spectrometers are...
US20140320816 SNAPSHOT SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHER  
Provided is a snapshot spectral domain optical coherence tomographer comprising: a light source providing a plurality of beamlets; a beam splitter, splitting the plurality of beamlets into a...
US20140111802 LOW STRAY LIGHT POLYCHROMATOR  
The invention discloses a low stray light polychromator comprising an optical housing, an entrance slit, a dispersion system and an array detector. The dispersion element of the dispersion system...
US20070182962 Spatial image modulation to improve performance of computed tomography imaging spectrometer  
Computed tomography imaging spectrometers (“CTIS”s) having patterns for imposing spatial structure are provided. The pattern may be imposed either directly on the object scene being imaged or at...
US20070030484 Spectrograph with segmented dispersion device  
A spectrograph is disclosed generally comprising a radiation source and a dispersion device that includes a plurality of segments arranged adjacently along a plane upon which the radiation is...
US20090237656 Tomographic Imaging Using Hyperspectral Absorption Spectroscopy  
Described herein are systems and methods of tomographic imaging using hyperspectral absorption spectroscopy, which may comprise simultaneously performing absorption measurements at multiple...
US20070188754 LASER SCANNING MICROSCOPE WITH SPECTRALLY RESOLVING RADIATION DETECTION  
The invention is directed to a laser scanning microscope with a detector device for spectrally resolving radiation detection. The detector device has at least one dispersive element, on which a...
US20060066850 Light measuring device, biochemical analyzer, biochemical analysis method, and spectrophotometer  
A biochemical analyzer includes an optical assay unit for light measurement by use of an analysis slide and an LED light source. A fluid sample is positioned on an assay surface of the analysis...
US20150177064 SPECTROMETER COMPRISING A SPATIAL LIGHT MODULATOR  
A spectrometer comprising an input for optical radiation; a dispersion element, such as a concave focussing reflection diffraction grating, for dispersing incident optical radiation passing from...
US20090102103 Infrared Light Sensors for Diagnosis and Control of Industrial Furnaces  
Passive sensors, and more particularly passive infrared sensors are used to ascertain the signature of carbon dioxide and carbon monoxide in the infrared region of the light emitted by the exhaust...
US20140313509 Linearized Variable-Dispersion Spectrometers and Related Assemblies  
Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received...
US20120242988 Linearized Variable-Dispersion Spectrometers and Related Assemblies  
Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received...
US20110125458 Spectroscopic Scatterometer System  
Before the diffraction from a diffracting structure on a semiconductor wafer is measured, where necessary, the film thickness and index of refraction of the films underneath the structure are...
US20090025160 LIQUID-SAMPLE WIPING MECHANISM AND WIPE-MATERIAL HOLDING MECHANISM FOR OPTICAL MEASUREMENT APPARATUS  
After a liquid sample is dropped onto a sample-holding platform 11, a window plate 22 is moved closer to the sample-holding platform 11 to hold the liquid sample between them. Measurement light is...

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