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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 8144321 | Encoding optical spectra using a DMD array According to one embodiment of the present invention, a system for encoding an optical spectrum includes a dispersive element, a digital micromirror device (DMD) array, a detector, and a controller. The dispersive element receives light from a source and disperses t... | 03/27/2012 |
| 7944557 | Method and apparatus for radiation encoding an analysis Method and apparatus for analyzing radiation using analyzers and encoders employing the spatial modulation of radiation dispersed by wavelength or imaged along a line. ... | 05/17/2011 |
| 7773218 | Spatially-registered wavelength coding Embodiments of the present invention relate to systems and methods for spectral imaging. Electromagnetic energy emanating from an object is passed through a first dispersive element, a coded aperture, and a second dispersive element to a detector plane. A wavelength... | 08/10/2010 |
| 7697134 | Correlation spectrometer A correlation spectrometer can detect a large number of gaseous compounds, or chemical species, with a species-specific mask wheel. In this mode, the spectrometer is optimized for the direct measurement of individual target compounds. Additionally, the spectrometer ... | 04/13/2010 |
| 7688441 | Arrangement for monitoring thermal spray processes An arrangement for measuring characteristic properties of a plasma beam in a thermal spray process, including a device for introducing spray materials into the plasma, a one-dimensional or two-dimensional array including first optical waveguides for receiving the li... | 03/30/2010 |
| 7515260 | Chemometric analyzer with a spatial radiation modulator having a plurality of radiation filters A chemometric analyzer for analyzing a plurality of analytes. The analyzer disperses radiation by wavelength along an encoding axis. The analyzer includes a spatial radiation modulator having a plurality of radiation filters. Each radiation filter modulates the inte... | 04/07/2009 |
| 7505130 | Static two-dimensional aperture coding for multimodal multiplex spectroscopy A class of aperture coded spectrometer is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spatial resolution by replacing the slit of conventional dispersive spectrometers with a spatial filter or mask... | 03/17/2009 |
| 7430044 | Encoder spectrograph with optimized diffraction grating An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may ... | 09/30/2008 |
| 7427932 | Compressive sampling and signal inference An optical signal is copressively sampled using an imaging system. The imaging system is created from a plurality of subimaging systems. Each subimaging system comprises a subaperture and a plurality of sensors. The optical signal is collected at each subaperture of... | 09/23/2008 |
| 7423748 | Encoder spectrograph and modulator for use therewith An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may ... | 09/09/2008 |
| 7423749 | Encoded photometric infrared spectroscopy analyzer with orthogonal-encoded components An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may ... | 09/09/2008 |
| 7420673 | Spatial radiation modulator pattern generation A method of generating a design pattern for a spatial radiation modulator to encode two or more selected spectral components in one or more spectral ranges for the chemometric analysis of a group of analytes. The method includes obtaining a corresponding spectrum fo... | 09/02/2008 |
| 7399445 | Chemical sensor A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and... | 07/15/2008 |
| 7379181 | Structured coded aperture fiber bundles A spatial filter for an optical system, such as an optical spectrometer, collects and spatially filters light using a fiber bundle having a plurality of fibers disposed therein. At an input end of the fiber bundle, the fibers are typically packed tightly together to... | 05/27/2008 |
| 7369773 | Methods and systems for polarization control and polarization mode dispersion compensation for wideband optical signals An optical processing method includes: receiving an optical signal from an optical system, wherein the optical signal is distorted by frequency-dependent polarization effects in the optical system; spatially dispersing frequency components of the distorted optical s... | 05/06/2008 |
| 7364317 | Method and apparatus for object viewing, observation, inspection, identification, and verification In an object verifier having a housing and an object holder, an object may be placed in the object holder for observation by an operator. The object is illuminated using a collimated beam of white light that is generated by a light generator. The collimated beam of ... | 04/29/2008 |
| 7362438 | COD measuring method and device A COD conversion equation holding unit in a computing unit of a COD measuring device holds a COD conversion equation that indicates a relationship between total-absorbance that is linearly combined by multiplying an absorbance value at each of a plurality of wavelen... | 04/22/2008 |
| 7359117 | Illumination device for microscope A illumination device for microscope, which has a illumination axis, includes illumination unit, which emits rays of illumination light, for illuminating a specimen, a field stop projection lens, which is located on the illumination axis between the illumination uni... | 04/15/2008 |
| 7341450 | Tooth shade scan system and method A tooth shade scan system is provided that identifies tooth shades for a patient's tooth. An electronic database of tooth shade information for a shade guide may be stored. The database may include shade information based on tooth regions (e.g., the incisal, central... | 03/11/2008 |
| 7339148 | Confocal microscope A scanning optical microscope including: a light source; a lens for altering the cross-sectional shape aspect ratio of a beam of light emitted from the light source; at least one lens for converging beams of light of different cross-sectional shape aspect ratio to c... | 03/04/2008 |
| 7339669 | Device for the analysis of the qualitative composition of gases A device for the analysis of the qualitative, optionally also the quantitative composition of gases, uses measuring light of known spectral composition that can pass through the gas to be analyzed and the gas can be caused to interact. A detector arrangement is pres... | 03/04/2008 |
| 7339170 | Optical encoding and reconstruction The invention features methods including: (i) modulating multiple components (e.g., different spatial regions, different wavelengths, or both) of electromagnetic (EM) radiation emerging from an object with different time-varying functions; (ii) measuring at least on... | 03/04/2008 |
| 7336353 | Coding and modulation for hyperspectral imaging Embodiments of the present invention relate to systems and methods for spectral imaging. In one embodiment, an image of the scene is formed on a coded aperture of a spectrometer. A coded image from the coded aperture is detected on a two-dimensional detector array o... | 02/26/2008 |
| 7330253 | Method and apparatus for radiation analysis and encoder Method and apparatus for analyzing radiation using analyzers and encoders employing the spatial modulation of radiation dispersed by wavelength or imaged along a line. ... | 02/12/2008 |
| 7324196 | Spectral encoder A spectral encoder for producing spectrally selected images of a radiation field containing multiple spectral components. An imaging spectrograph defines a first optical path that produces from the input radiation field a spectrally dispersed image comprising multip... | 01/29/2008 |
| 7317520 | Method and apparatus for measuring brightness An apparatus for measuring brightness transmitted by a light-emitting display unit of a laser telescope and observed by the user's eyes comprises a focusing unit (11), a sensor unit (12), a processing unit (13) and a display unit (14). A ... | 01/08/2008 |
| 7304733 | Method and device for conducting the spectral differentiating, imaging measurement of fluorescent light A method and a device for image producing measurement of fluorescent light, according to which a sample containing fluorophores of different species is irradiated with excitation light of at least one excitation channel defined by its spectral properties. The fluore... | 12/04/2007 |
| 7301625 | Static two-dimensional aperture coding for multimodal multiplex spectroscopy A class of aperture coded spectrometer is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spatial resolution by replacing the slit of conventional dispersive spectrometers with a spatial filter or mask... | 11/27/2007 |
| 7292335 | Optical measurements of patterned structures A method and a system for optical measuring in a structure having a pattern in the form of spaced-apart parallel elongated regions of optical properties different from that of spaces between said regions. The system comprises a broadband illuminator (8) for g... | 11/06/2007 |
| 7289209 | Programmable spectral imaging system An imaging system having a programmable spectral transmission function, that includes an input image plane for passing input imaging light into the imaging system; a dispersive optical system for separating the input imaging light into its corresponding spectral com... | 10/30/2007 |
| 7282706 | Advanced optics for rapidly patterned laser profiles in analytical spectrometry The present invention is directed to a novel arrangement of optical devices for the rapid patterning of laser profiles used for desorption and/or ionization sources in analytical mass spectrometry. Specifically, the new optical arrangement provides for a user-define... | 10/16/2007 |
| 7283232 | Optical spectroscopy with overlapping images An optical spectrometer distinguishes ambiguity between different wavelength constituent components present in incident light. A spatial filter in the spectrometer spatially filters the incident light. A dispersion system receives the spatially filtered light and di... | 10/16/2007 |
| 7283231 | Compressive sampling and signal inference A transmission mask or cooled aperture is used in spectroscopy to compressively sample an optical signal. The locations of transmissive and opaque elements of the mask are determined by a transmission function. The optical signal transmitted by the mask is detected ... | 10/16/2007 |
| 7280810 | Multimode communication system Multimode, multi-function, multiple modulator-demodulator (modem) system containing a fingerprint sensor, detection, identification, authentication, and processing device for one or multiple fingerprint information to activate one or multiple modulators for signal t... | 10/09/2007 |
| 7273998 | System and method for monitoring laser shock processing A method and system for monitoring laser shock peening of a work piece. A line spectrum is obtained from radiation emitted by a plasma produced by a laser shock peening process. The shape of the line spectrum about its emission peak is compared to a defined line sha... | 09/25/2007 |
| 7265824 | Method and device for obtaining a low-noise optical signal The invention relates to a method and a device for obtaining a low-noise optical signal. According to the method, a luminous beam is injected through two apertures and after detection respectively a basic optical signal (21) and a corrective optical si... | 09/04/2007 |
| 7265830 | Fourier Transform spectrometer apparatus using multi-element MEMS A Fourier Transform (FT) spectrometer apparatus uses multi-element MEMS (Micro-Electro-Mechanical-Systems) or D-MEMS (Diffractive Micro-Electro-Mechanical-Systems) devices. A polychromatic light source is first diffracted or refracted by a dispersive component such ... | 09/04/2007 |
| 7262846 | Encoder spectrograph for analyzing radiation using spatial modulation of radiation dispersed by wavelength An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may ... | 08/28/2007 |
| 7248358 | Devices and method for spectral measurements A spectral measurement device comprising an entrance aperture for receiving an electromagnetic energy and a mask located at the entrance aperture in the form of a two-dimensional encodement pattern. An optical element conditions the electromagnetic energy received f... | 07/24/2007 |
| 7248362 | Small-spot spectrometry instrument with reduced polarization and multiple-element depolarizer therefor A small-spot imaging, spectrometry instrument for measuring properties of a sample has a polarization-scrambling element, such as a birefringent plate depolarizer, incorporated between the polarization-introducing components of the system, such as the beamsplitter, ... | 07/24/2007 |
