Abstract:
An addressable micromirror array is employed in conjunction with circuit topology navigation software to rapidly wavelength sample selected measurement points in an integrated circuit region.
Abstract:
A photo-thermal, interferometric spectroscopy system is disclosed that provides information about a chemical, such as explosives and the like, at a remote location. It may be used for solid residue detection on a surface. The system includes a novel light detector system with a matrix of optical elements focusing portions of a received light beam on input waveguides of an optical combiner. The combiner adjusts the phases of the received beam portions and combines them together to maximize the intensity of an output beam. The output beam is detected by a detector, and information about at least one of, absorption spectrum and concentration of the chemical is recovered. In the preferred embodiment the detector is a coherent detector based on 90-degrees optical hybrid.
Abstract:
The present disclosure includes a number of method, medium, and apparatus claims utilized for color sensor performance. One method includes determining performance of a color sensor, which can be performed by measuring a color parameter intensity and reflectance spectral power distribution of a particular type of print medium with a color sensing utility of a print apparatus. The method also can include detecting a magnitude of a difference between the measured color parameter intensity and reflectance spectral power distribution of the particular type of print medium and a predetermined intensity and reflectance spectral power distribution of the color parameter of the particular type of print medium, where the predetermined intensity and reflectance spectral power distribution is stored in memory.
Abstract:
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base. Such methods and implements may be desirably utilized for purposes of detecting and preventing counterfeiting or the like.
Abstract:
A distributed color selection and coordination system including a remote computer communicatively coupled to a server. The remote computer configured to select a starting color and access a database in the server to find one or more complementary colors. The colors in the database are arranged in a predetermined relationship with other colors in the database, the relationship between colors based on color theory. The remote computer is capable of storing personal information and color selections on the server. An in-store kiosk is communicatively coupled to the server and configured to execute color selection and coordination software. The in-store kiosk is further capable of retrieving stored personal information and color selections from the server which were previously stored from the remote computer.
Abstract:
A reference-color measurement step of obtaining a reference-color measurement value by measuring a spectroscopic-radiation luminance of a light being emitted from a reference-color portion in a measurement direction, or a tristimulus value thereof, using a light-source-color measuring instrument, without irradiating the reference-color portion with a light source for measurement, in a predetermined measurement environment, is disclosed. An objective-portion measurement step of obtaining an objective-portion measurement value by measuring a spectroscopic-radiation luminance of a light being emitted from a measurement-objective portion in the measurement direction, or a tristimulus value thereof, using the light-source-color measuring instrument, without irradiating the measurement-objective portion with a light source for measurement, in the measurement environment, is also disclosed.
Abstract:
In a chromatic point sensor, distance measurements are based on a distance-indicating subset of intensity profile data, which is selected in a manner that varies with a determined peak position index coordinate (PPIC) of the profile data. The PPIC indexes the position a profile data peak. For profile data having a particular PPIC, the distance-indicating subset of the profile data is selected based on particular index-specific data-limiting parameters that are indexed with that same particular PPIC. In various embodiments, each set of index-specific data-limiting parameters indexed with a particular PPIC characterizes a distance-indicating subset of data that was used during distance calibration operations corresponding to profile data having that PPIC. Distance-indicating subsets of data may be compensated to be similar to a corresponding distance-indicating subset of data that was used during calibration operations, regardless of overall intensity variations and detector bias signal level variations.
Abstract:
The invention provides for a device comprising an apparatus comprising (a) a transmission grating capable of diffracting a photon beam into a diffracted photon output, and (b) an image detector capable of detecting the diffracted photon output. The device is useful for measuring the spatial profile and diffraction pattern of a photon beam, such as a vacuum ultraviolet (VUV) beam.
Abstract:
A light fixture, using one or more solid state light emitting elements utilizes a diffusely reflect chamber to provide a virtual source of uniform output light, at an aperture or at a downstream optical processing element of the system. Systems disclosed herein also include a detector, which detects electromagnetic energy from the area intended to be illuminated by the system, of a wavelength absent from a spectrum of the combined light system output. A system controller is responsive to the signal from the detector. The controller typically may control one or more aspects of operation of the solid state light emitter(s), such as system ON-OFF state or system output intensity or color. Examples are also discussed that use the detection signal for other purposes, e.g. to capture data that may be carried on electromagnetic energy of the wavelength sensed by the detector.
Abstract:
The invention relates to a spectral detector for measuring properties of light over portions of the electromagnetic spectrum including cholesteric liquid crystal material and switching means capable of varying the pitch of the helix of the cholesteric liquid crystal material, so that the position of the transmission wavelength band is adjusted in response to the switching means. The spectral detector may further include at least one light direction selecting structure for selecting light incident on the spectral detector having a certain angle of incidence. This invention also relates to a lighting system including the spectral detector of the invention.