Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8159675 | Observation device and wavelength limiting filter An observation device observing a sample cultured in a culture vessel includes an illuminating unit including an illumination optical system and illuminating the sample, an image-capturing unit including an imaging sensor and generating an image by capturing an imag... | 04/17/2012 |
| 8154726 | Optical analysis system and method for real time multivariate optical computing An optical analysis system and method for determining information carried by light include a multivariate optical element disposed in the system to receive a source light from an illumination source; filtering the source light through a spectral element in the optic... | 04/10/2012 |
| 7843565 | Optical gas monitor A frequency modulated spectroscopy system, including a photo-detector, a band-pass filter to filter the output of the photo-detector, and a rectifier to demodulate. The band-pass filter has a relatively high Q factor. With the high Q factor band-pass filter and rect... | 11/30/2010 |
| 7812951 | Color sensors using polarimetric techniques Embodiments include an apparatus including a color sensor including a transmitter portion and a receiver portion, the transmitter portion including a light source operable to generate and transmit a light having a particular range of wavelengths, the receiver portio... | 10/12/2010 |
| 7733489 | Optical method of multi-band mixing The color difference and/or chromaticness difference between target objects and background objects can be enhanced. Different colors with different color attributes mean different objects. In some cases, different chromaticness, such as saturation and hue, mean diff... | 06/08/2010 |
| 7719685 | Near-field optical apparatus and method using photodetector array An imaging-type near-field optical microscope mainly comprises a light source and a photodetector array. The array functions as imaging array where each cell or photodetector has subwavelength dimensions. A sample under test is disposed in optical near field of the ... | 05/18/2010 |
| 7671992 | Measurement system and scanning device for the photoelectric measurement of a measurement object pixel by pixel The measuring device comprises a lighting system, a photoelectric receiver unit and optical means. The lighting system applies light to image elements disposed in strip-shaped lighting regions (15) at a standardized angle of incidence range. The photoelectric... | 03/02/2010 |
| 7567346 | System and method for multimode imaging A system and method for multimode imaging of at least one sample is disclosed. The system includes at least one light source; an optical system selected responsive to a mode of operation of the imaging system; and a detector capable of selective reading of pixels. T... | 07/28/2009 |
| 7515267 | Method for determining color and/or density values and printing apparatus configured for the method In a method for determining color and/or density values for use in monitoring and regulating a printing process in a printing apparatus, specifically in a sheet-fed offset printing press, measuring areas of a printed sheet are measured photoelectrically during the p... | 04/07/2009 |
| 7433041 | Illumination arrangement for a colour measurement device An illumination arrangement for a color measurement device includes a linear arrangement of light emitting diode chips (11) packed tightly along a narrowly defined path. A plurality of light emitting diode chips within at least one region of the path emit lig... | 10/07/2008 |
| 7428051 | Device for the IR-spectrometric analysis of a solid, liquid or gaseous medium The invention relates to a device for the IR-spectrometric analysis of a solid, liquid or gaseous medium. The device includes a process probe, which has a reflection element. The device additionally includes a linear variable filter, at least one detector element, a... | 09/23/2008 |
| 7420680 | Method for designing a colorimeter having integral CIE color-matching filters A method for determining the optimal colorant thicknesses for integral CIE color-matching filters is provided. According to a computational study, a four band filter of the present invention provides a best approximation to the CIE XYZ color-matching functions with ... | 09/02/2008 |
| 7394541 | Ambient light analysis methods, imaging devices, and articles of manufacture Ambient light analysis methods, imaging devices, and articles of manufacture are described. According to one aspect, an ambient light analysis method includes emitting light using a source, first filtering the light of the source providing first filtered light, firs... | 07/01/2008 |
| 7382454 | System and method for optically assessing lamp condition A greater efficiency and cost-effectiveness is achieved by optically assessing the condition of a gas discharge lamp. Herein, a system and method of optically assessing lamp condition includes measuring the intensity of emitted light within two portions of the emitt... | 06/03/2008 |
| 7371562 | Guided mode resonant filter biosensor using a linear grating surface structure Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters. ... | 05/13/2008 |
| 7365842 | Light scanning type confocal microscope A light scanning type confocal microscope includes a light source unit that projects an excitation light beam, a scanning optical system that scans the excitation light beam, an objective lens that applies the excitation light beam to a sample, a separation optical ... | 04/29/2008 |
| 7362422 | Method and apparatus for a downhole spectrometer based on electronically tunable optical filters The present invention provides an apparatus and method for high resolution spectroscopy (approximately 10 picometer wavelength resolution) using a tunable optical filter (TOF) for analyzing a formation fluid sample downhole and at the surface to determine formation ... | 04/22/2008 |
| 7349598 | Surface plasmon resonance device A surface plasmon resonance device of the present invention includes a transparent medium layer and a conductive layer, a periodic structure being present at the interface therebetween. Assuming that the wavelength of visible light incident on the conductive layer t... | 03/25/2008 |
| 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 |
| 7336062 | Optically measuring electric field intensities An apparatus includes an optical resonator and a passive optical device. The optical resonator has first and second optical reflectors and an optical cavity interposed between the reflectors. The optical resonator includes an electro-optically responsive material. O... | 02/26/2008 |
| 7326915 | Wavelength stabilization for broadband light sources A broadband light source, such as a light-emitting diode (LED), such as a superluminescent light-emitting diode (SLED), has its mean wavelength stabilized by using a filter to pass a characteristic of the output of the source, detecting the filtered output, and adju... | 02/05/2008 |
| 7327454 | Method and apparatus for detecting biomolecular interactions Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light... | 02/05/2008 |
| 7324199 | System and deconvolution process for an optical filtering device based on WGM resonance A system and method for detecting the optical spectrum of an optical input signal. The system includes a tunable optical filter having a microresonator that is tunable across a plurality of states and a processor. The input signal is coupled into the microresonator,... | 01/29/2008 |
| 7321607 | External optics and chamber support system A gas discharge laser and method of operating same is disclosed which may comprise a gas discharge laser chamber support structure comprising a first support arm attached to a mounting table; a gas discharge laser chamber slideably engaging the first support arm; an... | 01/22/2008 |
| 7312874 | Apparatus and a method for determining the color stimulus specification of translucent objects The Apparatus for determining the color stimulus specification of a translucent object, for example of a tooth, comprises an illumination device as well as an image capture device. For illuminating the object under test with light in different wave length portions, ... | 12/25/2007 |
| 7312090 | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor Methods are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also relates to optical devices. ... | 12/25/2007 |
| 7301628 | Method and apparatus for detecting biomolecular interactions Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light... | 11/27/2007 |
| 7300803 | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor Methods are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also relates to optical devices. ... | 11/27/2007 |
| 7298484 | Dual-band sensor system utilizing a wavelength-selective beamsplitter An imaging sensor system images in two different spectral bands a light beam traveling on a light path from a target. The sensor system includes an imaging sensor operable to image light of the two different spectral bands, a common optics having at least one reflec... | 11/20/2007 |
| 7292336 | Method and instrument for detecting biomolecular interactions Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An instrument system for detecting a biochemical interaction on a biosensor. The system includes an array of... | 11/06/2007 |
| 7285768 | Color photodetector array A color sensor for measuring light from a light source and the method for fabricating the color sensor. The color sensor includes a plurality of photodetectors, a plurality of primary color filters and a trim filter. Each primary color filter includes a layer of mat... | 10/23/2007 |
| 7286231 | Method and apparatus for peak compensation in an optical filter In one embodiment the disclosure relates to a method and a system for determining the corrected wavelength of a photon scattered by a sample. The method includes the steps of determining a wavelength of a photon scattered from a sample exposed to illuminating photon... | 10/23/2007 |
| 7280214 | Method and apparatus for a high resolution downhole spectrometer The present invention provides a simple, robust, and versatile high-resolution spectrometer that is suitable for downhole use. The present invention provides a method and apparatus incorporating a spinning, oscillating or stepping optical interference filter to chan... | 10/09/2007 |
| 7277175 | Systems and methods for wavelength selective measurement of properties of small volume liquid samples A system for measuring properties of small volume liquid samples, where the system includes wavelength selective filters. ... | 10/02/2007 |
| 7274454 | Imaging system with programmable spectral switch An imaging apparatus has input optics for obtaining a multispectral image bearing light and a programmable spectral switching section. The programmable spectral switching section has a first lens for directing light toward a dichroic separator that separates the mul... | 09/25/2007 |
| 7265364 | Level sensor for lithographic apparatus A level sensor for a lithographic projection apparatus includes a light source configured to direct light onto a substrate to be measured, a detector configured to detect light reflected from the substrate, and a processor configured to calculate a difference betwee... | 09/04/2007 |
| 7264973 | Label-free methods for performing assays using a colorimetric resonant optical biosensor The instant invention provides compositions and methods for determining cell interactions that are faster than conventional methods and that require the use of fewer reagents than conventional methods. ... | 09/04/2007 |
| 7262856 | Microstructured optical device for remote chemical sensing A microstructure-based chemical sensor that can be interrogated by a remote observer. The device acts as an electromagnetic wave filter in the optical region of the spectrum, filtering one or more wavelength bands where the band spectral notch location shifts in res... | 08/28/2007 |
| 7262844 | Ultrasensitive spectrophotometer The invention concerns measurements in which light interacts with matter to generate light intensity changes, and spectrophotometer devices of the invention provide ultrasensitive measurements. Light source noise in these measurements can be reduced in accordance wi... | 08/28/2007 |
| 7253902 | Wavelength detector A radiation measurement device for determining a wavelength-related characteristic of radiation from a radiation source is provided. The device includes a wavelength-dependent optical element (e.g., bandpass filter), and an optical power-measuring detector (e.g., ph... | 08/07/2007 |
