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| Number | Title | Issue Date |
| 8164046 | Illumination system for illuminating a mask in a microlithographic projection exposure apparatus An illumination system for illuminating a mask in a microlithographic projection exposure apparatus includes an array of mirrors or other beam deflecting elements. Each beam deflecting element produces on the surface a projection light spot at a position that is var... | 04/24/2012 |
| 7652246 | Optical pickup device and optical disk device A laser emitting device (9) includes a light emitting portion (4) that emits light of a wavelength λ1 (approximately 405 nm), a light emitting portion (5) that emits light of a wavelength λ2 (approximately 650 nm), and a light em... | 01/26/2010 |
| 7435945 | Optical configuration for imaging-type optical encoders A displacement measuring device including a scale, and an optical readhead including an index pattern and a light receiving element is provided. A bright/dark pattern arising from a scale grating is detected by the readhead to measure displacement. In various embodi... | 10/14/2008 |
| 7432497 | Absolute linear encoder An absolute linear encoder includes a plurality of absolute scales aligned in the detection direction with absolute calibrations, a plurality of detectors for detecting the calibrations on the absolute scales, absolute position data generating portions of each scale... | 10/07/2008 |
| 7420156 | Metal nanowire based bandpass filter arrays in the optical frequency range A metal nanowire array acts as a band pass filter in the visible to IR range. The filter may be used in a monochromator, spectrometer, color camera, analyte detector or other devices. ... | 09/02/2008 |
| 7417748 | Method and apparatus for measuring dimensional changes in transparent substrates A method of measuring dimensional changes in a transparent substrate includes forming an array of reference markers on a reference plate, forming an array of substrate markers on the transparent substrate, stacking the reference plate and transparent substrate such ... | 08/26/2008 |
| 7405392 | Optical rotary encoder An optical encoder includes: a rotary slit plate having a rotation angle detection track including an optical slit; a light source for applying light to the optical slit; light detecting elements for rotation angle detection and arranged at positions to which light ... | 07/29/2008 |
| 7402828 | Position detector that prevents erroneous detection of a scale and liquid ejecting apparatus incorporating the same A liquid ejecting head is operable to eject liquid toward a target medium. A light emitter is operable to emit light. A light receiver is adapted to receive the light emitted from the light emitter, and operable to output a signal in accordance with an amount of the... | 07/22/2008 |
| 7347376 | Apparatus and method for verifying print quality of an encoded indicium The invention is an apparatus configured to provide self-alignment in use when measuring the print quality of an encoded indicium. The apparatus is configured to exclude ambient light, and to align an encoded indicium located at a first aperture defined in a first s... | 03/25/2008 |
| 7345273 | Integrated optical encoder A rotary switch including a control element, a light-emitting device arranged on a printed circuit board and configured to emit light, and at least two receivers arranged on the printed circuit board in correspondence with the light-emitting device and configured to... | 03/18/2008 |
| 7329858 | Optical encoder and electronic equipment having same An optical encoder includes a mobile object having a plurality of aligned slits, a light-emitting portion for emitting light toward the mobile object, and a light-receiving portion 103 for receiving the light which has passed the mobile object. The light-rece... | 02/12/2008 |
| 7322720 | Traditional style post-top luminaire with relamping module and method A luminaire adapted to being mounted at the top of a post having a design reducing maintenance costs. The luminaire has a capital with a globe mounted thereon forming an optical chamber, the capital has a front access area with a front access door hingedly attached ... | 01/29/2008 |
| 7312436 | Optical position measuring system with a detector arrangement and measuring graduation to produce partial filtering of undesired harmonics An optical position measuring system that includes a measuring graduation and a scanning unit that is movable in relation to the measuring graduation in a measuring direction. The scanning unit includes a light source that generates light towards the measuring gradu... | 12/25/2007 |
| 7312435 | Determination of a physical state of an optical device The present invention relates to a determination of a physical state of an optical device by measuring a response signal. At least two subsequent measurements are executed. Therefore, a first optical signal is transmitted to the optical device, wherein a firs... | 12/25/2007 |
| 7297971 | Alignment systems and methods for lithographic systems An alignment system for a lithographic apparatus has a source of alignment radiation; a detection system that has a first detector channel and a second detector channel; and a position determining unit in communication with the detection system. The position determi... | 11/20/2007 |
| 7284883 | Free-cavity, double-diffusing indirect lighting luminaire A lighting system and device for providing indirect light using free-cavity, double-diffusing configurations are disclosed. In accordance with the embodiments of the invention, a lighting fixture comprises a cover structure with a diffusion layer and a reflective pl... | 10/23/2007 |
| 7265338 | Photoelectric encoder using an incoherent semiconductor light source A photoelectric encoder is provided, which emits light from a light source to a main scale and an index scale that can relatively move with respect to each other and obtains a light-receiving signal by interaction between the main scale and the index scale. The phot... | 09/04/2007 |
| 7265331 | Optical sensing apparatus and method for determining highest intensity of light in an array A plurality of optical sensing elements in an array where each element has a unique element address identifying the element location. Each element senses light and produces an element address signal in proportion to the intensity of the light sensed by the element. ... | 09/04/2007 |
| 7247835 | Optical navigation device, and method for manufacturing same An optical navigation sensor receives light that is produced by a light source and reflected from a surface. The optical navigation sensor has a silicon substrate having a plurality of photo-sensing regions, each of which receives a portion of the reflected light, a... | 07/24/2007 |
| 7238932 | Optical position sensing device An optical position sensing device for sensing a two-dimensional displacement, comprising a first photosensor arranged parallel to a first axis; a second photosensor arranged parallel to a second axis; wherein the first and the second axis are at an angle with respe... | 07/03/2007 |
| 7198265 | Imaging apparatus including a movable media sensor An imaging apparatus includes a printing mechanism having a media path. A print media source is provided for supplying a sheet of print media to the printing mechanism. A drive unit is provided, with a drive shaft coupled to the drive unit. A media sensor device is ... | 04/03/2007 |
| 7196527 | Redundant compact encoders A position transducer for a rotary member such as the rotor of a motor has a rotating encoder disc and flat, disc-shaped elements interacting with the encoder disc to produce position dependent signals. The encoder disc has at least one active element such as metal ... | 03/27/2007 |
| 7193204 | Multi-track optical encoder employing beam divider An optical encoder includes a sensor head, an encoder scale, and an optical wavefront dividing element. The sensor head includes a substrate, a light source, a first optical detector, and a second optical detector. The light source, the first optical detector, and t... | 03/20/2007 |
| 7186969 | Optical configuration for imaging-type optical encoders A displacement measuring device including a scale, and an optical readhead including an index pattern and a light receiving element is provided. A bright/dark pattern arising from a scale grating is detected by the readhead to measure displacement. In various embodi... | 03/06/2007 |
| 7182338 | Apparatus for discriminating sheet material The present invention provides an apparatus for discriminating the kind of a sheet material, comprising: a substrate having a recessed portion; a press member situated so that a sheet material can be deflected using the recessed portion; a support member that is def... | 02/27/2007 |
| 7176440 | Method and apparatus for detecting objects using structured light patterns An object detection system is provided that projects one or more patterns onto a monitored area, captures one or more live images of the monitored area, and detects objects that enter the monitored area by detecting changes in the one or more patterns in the live im... | 02/13/2007 |
| 7165897 | Optical module This optical module includes solder which solders an anode electrode of a PD element for detecting back light emitted from an LD element and wiring patterns, and solder which solders a cathode electrode and wiring patterns. ... | 01/23/2007 |
| 7167287 | Hologram imaging device and method of using same A hologram imaging device for obtaining hologram images and associated document markings which are commonly being used for document verification is disclosed. The imaging device comprises a housing defining an imaging chamber, camera, hologram light source, document... | 01/23/2007 |
| 7161686 | Sensor for determining the angular position of a radiating point source in two dimensions and method of operation A sensor for determining the angular position of a radiating point source in two dimensions includes a mask encoded in two skewed directions with waveforms consisting of several frequencies in prescribed patterns. The frequency spectra of the received detector patte... | 01/09/2007 |
| 7148493 | Method, apparatus, and system for imaging a fluorescent object A method of imaging an object comprising emitting ultraviolet light having a single intensity on the object, converting light fluoresced by the object into electrical charges comprising a scanned image of the object, and generating a data set defining the scanned im... | 12/12/2006 |
| 7126696 | Interferometric miniature grating encoder readhead using fiber optic receiver channels An interferometric fiber optic encoder readhead for sensing the displacement of a scale grating is disclosed. The detector channels of the readhead are fiber optic detector channels having respective phase grating masks. The fiber optic encoder readhead is configure... | 10/24/2006 |
| 7117374 | Apparatus and method for gathering and utilizing data Disclosed is a device and method for obtaining and utilizing data. A handheld device which is capable of optically scanning or receiving RFID signals from an object, storing the data in an internal memory, and then re-transmitting the data is disclosed. The re-trans... | 10/03/2006 |
| 7115848 | Methods, systems and computer program products for calibration of microscopy imaging devices An imaging system on which a calibration method is practiced includes: a light source; a substrate for supporting an object; a patterning mask that generates a substantially periodic spatial pattern on the object; a phase shifter that adjusts the relative position o... | 10/03/2006 |
| 7091475 | Miniature 2-dimensional encoder readhead using fiber optic receiver channels A 2D fiber optic encoder readhead having multiple readhead portions for sensing the two-dimensional displacement of a scale grating is disclosed. The detector channels of the readhead portions are fiber optic detector channels having respective phase grating masks. ... | 08/15/2006 |
| 7079112 | Pointing device with absolute and relative positioning capability A pointing device of a computer having absolute and relative positioning capability is disclosed. In a mouse pointing device embodiment, the mouse is movable over a mouse pad having a surface having a plurality of uniquely coded positions. The mouse includes a mecha... | 07/18/2006 |
| 7071923 | Optical mechanism of an optical mouse An improved optical mechanism of an optical mouse is disclosed. The improved optical mechanism is implemented inside the optical mouse and applies a layer of black coating or a surface processing to surface adjacent to photosensor surroundings to thus form an absorb... | 07/04/2006 |
| 7066024 | Float adapted to track an interface between two liquids of differing density A float adapted to track an interface between two liquids of differing density, includes a hollow buoyant body having an interior cavity adapted to retain liquid. At least one upper access opening is provided in the body, which is adapted to permit filling of the in... | 06/27/2006 |
| 7057163 | Optical position sensing device An optical position sensing device for sensing a two-dimensional displacement, comprising a first photosensor arranged parallel to a first axis; a second photosensor arranged parallel to a second axis, wherein the first and the second axis are at an angle with respe... | 06/06/2006 |
| 7053362 | Absolute position miniature grating encoder readhead using fiber optic receiver channels An absolute position fiber optic encoder readhead having multiple readhead portions for sensing the displacement of respective scale grating tracks of a scale is disclosed. The detector channels of the readhead portions are fiber optic detector channels having respe... | 05/30/2006 |
| 7034739 | Delivery of quasi-periodic pulses of EM energy utilizing the principle of beating-wave amplification The present invention is related a method and system for irradiating a target location or material with high-amplitude narrow pulses of electromagnetic (EM) energy at a periodic or quasi-periodic rate. The method and system comprises generating at least three electr... | 04/25/2006 |
