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| Number | Title | Issue Date |
| 8094318 | Method and apparatus for determining reflectance data of a subject An apparatus for obtaining reflectance data of an object includes a diffuser having a surface. The apparatus includes a mapping portion that affects a mapping between a light field at the object's surface and a light field at the diffuser surface for BRDF capture of... | 01/10/2012 |
| 8077319 | Apparatus and a method for observing the surface of a sample An apparatus for observing the appearance of the surface (2) of a sample (1), comprising a light source (11) for illuminating said surface (2) from a predetermined direction and means for observing the surface (2). The means of obs... | 12/13/2011 |
| 8072607 | Measuring device for measuring optical properties of transparent substrates A measuring device for measuring optical properties of transparent substrates includes a light transmitter and/or light receiver comprising a hollow cylinder having a highly reflective and diffusely dispersive inner surface. The light transmitter comprises a light s... | 12/06/2011 |
| 7978332 | Optical measurement device An optical measurement device for measuring the optical appearance of a surface (12) of a sample (10), in particular a surface (12) of a human skin, wherein the surface is at least partly translucent, comprising: an illumination device (18 | 07/12/2011 |
| 7952716 | Coaxial diffuse reflectance read head Improved performance in reflectance photometry is obtained by employing an optical fiber to direct collimated light to a test area and to return both diffuse and specular light from the test area. Specular light is prevented from reaching a light detector by a spati... | 05/31/2011 |
| 7944564 | Device and method for acquiring information on objective substance to be detected by detecting a change of wavelength characteristics on the optical transmittance An information-acquiring device for acquiring information on an objective substance to be detected, which is provided with a sensing element that has a surface capable of fixing the objective substance to be detected thereon, and makes applied light change its wavel... | 05/17/2011 |
| 7884943 | Bi-directional reflectance distribution measuring instrument The invention concerns a bidirectional reflectance distribution meter having a light source which illuminates a sample using pre-determinable elevation and a light receiver, which can be moved relative to the light source in order to receive light from the sample. T... | 02/08/2011 |
| 7880889 | Angularly resolved scatterometer and inspection method An inspection method is provided to determine a value related to a parameter of a target pattern printed on a substrate by a lithographic process used to manufacture a device layer on a substrate. The inspection method can include using an optical system with a high... | 02/01/2011 |
| 7869049 | Determining biological tissue optical properties via integrating sphere spatial measurements An optical sample is mounted on a spatial-acquisition apparatus that is placed in or on an enclosure. An incident beam is irradiated on a surface of the sample and the specular reflection is allowed to escape from the enclosure through an opening. The spatial-acquis... | 01/11/2011 |
| 7864324 | Reflective scatterometer A reflective scatterometer capable of measuring a sample is provided. The reflective scatterometer includes a paraboloid mirror, a light source, a first reflector, a second reflector and a detector. The paraboloid mirror has an optical axis and a parabolic surface, ... | 01/04/2011 |
| 7859677 | Optical calibration system and method An optical system calibration system and method particularly suited for calibrating the optical slit planes in an ophthalmic diagnostic instrument. The system includes an illumination source projector, an illumination image receiver, and a calibration component all ... | 12/28/2010 |
| RE41949 | System and method for tomographic imaging of dynamic properties of a scattering medium A system and method for the detection and three dimensional imaging of absorption and scattering properties of a medium such as human tissue is described. According to one embodiment of the invention, the system directs optical energy toward a turbid medium from at ... | 11/23/2010 |
| 7835007 | Methods and apparatus for identifying thin films on a substrate The present invention provides systems, apparatus and methods for detecting a film in an electronic device disposed in an electronic device processing tool. The invention includes a mounting member adapted to couple the apparatus to a view port of the electronic dev... | 11/16/2010 |
| 7830522 | Method and apparatus for determining reflectance data of a subject An apparatus for obtaining reflectance data of an object includes a diffuser having a surface. The apparatus includes a mapping portion that effects a mapping between a light field at the object's surface and a light field at the diffuser surface for BRDF capture of... | 11/09/2010 |
| 7821641 | Precise flow-oriented multi-angle remission sensor A three-dimensional flow cell for aligning non-isometric particles in a liquid sample in two axes, a method of aligning non-isometric particles in a liquid sample, the use of the three-dimensional flow cell, a reflectance sensor which has the three-dimensional flow ... | 10/26/2010 |
| 7808644 | Device for optically measuring the shapes of objects and surfaces A device is provided for optically measuring shapes and/or examining objects, comprising at least one camera, at least one lens, a scattering body and at least two light sources. The device is characterized in that the scattering body is opaque and that at least two... | 10/05/2010 |
| 7808645 | Analysis system for analyzing a sample on an analytical test element The invention relates to an analysis system for analysing a sample on an analytical test element. The analysis system comprises a measuring module for carrying out measurements on the sample on the analytical test element and an optical module which comprises a lens... | 10/05/2010 |
| 7724374 | Coaxial diffuse reflectance read head Improved performance in reflectance photometry is obtained by employing an optical fiber to direct collimated light to a test area and to return both diffuse and specular light from the test area. Specular light is prevented from reaching a light detector by a spati... | 05/25/2010 |
| 7679752 | Methods for detecting pitch in lumber Methods are provided for detecting compression wood, blue stain, or pitch in lumber. A light beam is projected towards the wood sample. Line or area cameras acquire images of light that is reflected from the wood sample. Based on the intensity of the reflected light... | 03/16/2010 |
| 7643146 | Methods and apparatus for reducing noise in scatterometry measurements Methods and apparatus for performing scatterometry measurements of biological samples as described herein. A substrate having formed therein one or more sample wells is provided. Each sample well is configured to hold a sample solution containing objects that are to... | 01/05/2010 |
| 7616317 | Reflectometer and associated light source for use in a chemical analyzer A light source for a reflectometer which is used in a chemical analyzer includes a plurality of light emitting devices. Some of the light emitting devices emit light of different wavelengths. The light emitting devices are arcuately arranged about a circle having a ... | 11/10/2009 |
| 7602497 | Reflectance sensor for measuring liquid pigment preparations or solid pigmented surfaces The invention relates to reflectance sensors built up from an optical unit, a sample analysis unit and a system control unit, and to a method of measuring the reflectance of a sample in the form of a liquid pigment preparation, and to the use of a reflectance sensor... | 10/13/2009 |
| 7580131 | Angularly resolved scatterometer and inspection method In an angularly resolved scatterometer, an aperture plate including at least one obscuration extending into the image of the pupil plane is provided. Defocus values of a target pattern are determined from the radial distance between the innermost point of the images... | 08/25/2009 |
| 7554665 | Dual beam set-up for parousiameter A parousiameter having a dual beam setup and method for use thereof is provided for producing measurements of optical parameters. The dual beam parousiameter includes a hemispherical dome enclosure 318 sealed at the bottom with a base 320. A radiation ... | 06/30/2009 |
| 7545502 | Methods for detecting compression wood in lumber Methods are provided for detecting compression wood, blue stain, or pitch in lumber. A light beam is projected towards the wood sample. Line or area cameras acquire images of light that is reflected from the wood sample. Based on the intensity of the reflected light... | 06/09/2009 |
| 7499171 | Methods for using light reflection patterns to determine diving angle of grain Methods are provided for using light reflection patterns to determine various properties of fibrous materials, such as wood. More specifically, the present invention relates to methods for determining a dive angle for grain. Further, the present invention relates to... | 03/03/2009 |
| 7492461 | Method and device for measuring reflected optical radiation The present invention provides an optics assembly, a reflectometer, and a diagnostic device for providing quantitative measurement of optical radiation reflected from a sampling area on an assay matrix. The reflectometer includes an optical radiation source and a de... | 02/17/2009 |
| 7483141 | Diffuse reflectance readhead A glucose monitoring system comprising a readhead positioned a predetermined distance from a sample aperture. The readhead comprises first and second LEDs adapted to emit intersecting paths of light. A beam splitter is positioned at the intersection of the light pat... | 01/27/2009 |
| 7480054 | System and method for the deposition, imaging, detection and identification of threat agents A system and method for depositing a sample of a threat agent onto a substrate. The deposition of the threat agent onto the substrate is visually observed by analyzing the elastic scattered photons produced by the threat agent using elastic scatter imaging to form a... | 01/20/2009 |
| 7477397 | Self-calibrating optical reflectance probe system A self-calibrating optical reflectance probe system having an illuminant light source to illuminate a sample material, optical pickup means to collect reflected light from the sample material, and an articulated white reference reflection standard for illuminant ref... | 01/13/2009 |
| 7443508 | Spectrophotometric scanner A spectrophotometric scanner suitable for producing spectral reflectance images of surfaces of samples for a plurality of wavelength bands is disclosed. The spectrophotometric scanner comprises a scanner head for collecting spectral reflectance data, a positioning m... | 10/28/2008 |
| 7436516 | Reflection characteristic measuring apparatus A reflection characteristic measuring apparatus includes: a light irradiating member for irradiating light toward a sample surface to be measured; a light detector, having a two-dimensional light receiving surface, for receiving reflection light from the sample surf... | 10/14/2008 |
| 7433055 | Device for the examination of optical properties of surfaces A device for examining the optical properties of surfaces includes at least one first radiation device which emits radiation to a surface to be examined at a first predetermined spatial angle; at least one first detector device for capturing the radiation emitted to... | 10/07/2008 |
| 7426020 | System for print imaging with prism illumination optics A directionally-oriented reflective device is optically coupled to a prism surface in a skin ridge pattern imaging system to reflect illumination light at relatively small angles, along an optical path to an imaging device, so that minimal light is lost from the opt... | 09/16/2008 |
| 7405828 | Method for measuring the degree of crosslinking of pressure sensitive adhesive A method for measuring the degree of crosslinking of pressure sensitive adhesive. The method, having the advantages of simple steps and short measuring time, comprises immersing a transparent substrate coated with a pressure sensitive adhesive in a solvent. After a ... | 07/29/2008 |
| 7399600 | Optical detection and analysis of particles Method and apparatus for the single particle detection of submicron structures such as biological molecules and viruses utilises an optical element (100) comprising an optically transparent substrate (1) partially coated with a thin film of metal (2... | 07/15/2008 |
| 7397566 | Method and apparatus for optical interactance and transmittance measurements A method, system and apparatus for improving at least one of a) optical interactance measurements, b) optical transmittance measurements and c) optical reflectance measurements. The apparatus has a probe having a body portion and an tip portion. The body portion has... | 07/08/2008 |
| 7397565 | Device and method for obtaining appearance information A device has first and second units that lights an object at first or second incident angles; a unit that generates image signals according to the intensity of the received light; units that guides diffusely and specularly reflected light from the object to the imag... | 07/08/2008 |
| 7391518 | Device and method for the determination of the quality of surfaces The present invention relates to a device and method for making quantified determinations of the quality of surfaces and wherein the device comprises an optical system with a first optical means and a second optical means as well as a control and evaluation means an... | 06/24/2008 |
| 7391582 | Objective lens holder, objective lens driving device including same and optical disk read/write device An objective lens holder of the present invention includes: (i) a cavity, having an entrance and an exit, which guides, to an objective lens, an incident light beam entering the entrance, the exit being provided on a side of the cavity where the objective lens is ho... | 06/24/2008 |
