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| Number | Title | Issue Date |
| 6635896 | Optical disk stamper examination machine, optical disk stamper examination method, and optical disk stamper A glass substrate is affixed through an UV-hardening resin to the signal face of an optical stamper and is examined using an optical head having optical constants equivalent to those of a disk examination machine, thus making it possible to obtain charact... | 10/21/2003 |
| 6525308 | Apparatus and method for wavelength detection with fiber bragg grating sensors A wavelength detector configuration for detecting the Bragg wavelength of at least one Bragg grating in at least one FBG sensor, in which light reflected by each Bragg grating is conducted by fiber couplers into two detector channels, each containing a de... | 02/25/2003 |
| 6441361 | Mounting bracket for product sensor A mounting plate for a transmitting and receiving device. The transmitting and receiving devices are securably attached to the mounting plate so that adjustments are not necessary after the plate has been moved. The mounting plate has two mirror panels th... | 08/27/2002 |
| 6437358 | Apparatus and methods for capturing defect data The present invention provides a system for image-capturing devices, such as scanners, to accurately identify defects in objects. The objects can be the physical images to be captured or elements of the image-capturing devices such as the platen and mirro... | 08/20/2002 |
| 6433327 | Near-field optical microscope A near-field optical microscope comprising an optical probe which is arranged in opposition to a sample and irradiates the sample with an evanescent wave, a plurality of photodetectors which detect respective components of light scattered in different dir... | 08/13/2002 |
| 6429416 | Apparatus and method of controlling a gated power supply in an image intensifier with a micro-channel plate Apparatus for controlling a gated power supply of an image intensifier having a micro-channel plate includes a current-to-voltage converter coupled to the micro-channel plate operable to convert a strobing current on the micro-channel plate to a strobing ... | 08/06/2002 |
| 6429413 | Image sensor having unit light receiving circuit with sample-and-hold means To eliminate a residual image due to residual charge in an image sensor circuit and provide an effective bright-time output, the image sensor is provided with a reset switch connected to a photodiode. After the potential of the photodiode is held through ... | 08/06/2002 |
| 6355927 | Interpolation methods and circuits for increasing the resolution of optical encoders An interpolation circuit for an optical encoder or other sensing device includes a signal generating circuit, a comparator circuit and a logic circuit. The signal generating circuit generates A, A', B, B', one or more fractional A or A' and one or more fr... | 03/12/2002 |
| 6342696 | Object detection method and apparatus employing polarized radiation Methods and apparatus for detecting objects are disclosed. In one embodiment of the invention, a person entering a secured or "Safe Zone™" is illuminated with low-power polarized radio waves. Differently polarized waves which are reflected back from the... | 01/29/2002 |
| 6340821 | Projection eyepiece and method for aligning pattern areas on opposing substrate A projection eyepiece and method for aligning pattern areas on a substrate surface having a micro-optical device on an opposite surface side of the substrate is disclosed. The projection eyepiece enables projection of a reticle image onto a first surface ... | 01/22/2002 |
| 6339213 | Solid state imaging device and method for driving the same A CCD solid state imaging device (21), which is comprised of an imaging section (24) formed of a plurality of light receiving portions (22), each serving as a pixel, and of a vertical transfer register (23) corresponding to each column of light receiving ... | 01/15/2002 |
| 6335538 | Electro-optically driven solid state relay system There is provided an electro-optically driven relay system (10) for switching the application of energy to a load (5). The subject relay system (10) comprises: a switch unit (100) operable responsive to a control signal; an electro-optic current generatin... | 01/01/2002 |
| 6326603 | Charge balance type photodiode array comprising a compensation circuit In order to improve the noise performance of a charge balance type photodiode array by reducing error influences, e.g. due to offset voltages, flicker and/or thermal noise, on a desired signal a compensation circuit is inserted in each channel of this arr... | 12/04/2001 |
| 6326604 | Optical intensification system, including an image intensifier, for viewing an input source through a lens as a virtual image or as a real image An optical intensification system for viewing an input source through a telescope or camera lens or other input optical device. The system includes a housing having an input thread coupling adapted to be coupled to the input optical device, an image inten... | 12/04/2001 |
| 6326606 | Method and apparatus for checking shape The level of a laser beam is controlled to the maximum level detectable by a sensor, and light transmitted through the pattern is normalized with branched light. The laser beam level is made up for variations, and noise at zero and saturation levels are r... | 12/04/2001 |
| 6326607 | Calibration device and method of a scanner A calibrating apparatus for scanner in searching for reference of absolute or relativistic position is disclosed. The calibrating apparatus includes a cross-sectional area that generates a drop in elevation and creates a border between dark area and light... | 12/04/2001 |
| 6323476 | Active pixel sensor with switched supply row select A pixel architecture for economizing area within the pixel leaving a greater proportion of area for photodetector area. Area is saved by employing a method of generating row select signals for active pixel sensors comprising the steps of providing an acti... | 11/27/2001 |
| 6320185 | Image detection apparatus While a pinhole disk with pinholes is being rotated, a confocal image of a surface of a sample, which has passed through the pinholes, is imaged by a CCD camera. A vertical sync signal extraction circuit extracts a vertical sync signal from an image signa... | 11/20/2001 |
| 6316765 | Device for detecting the position of rotating objects A device for detecting the position of rotating objects, having an optical signal transmitter and an optical sensor, includes a stationary light source provided in the optical signal transmitter for generating along an optical axis a light beam directed o... | 11/13/2001 |
| 6316764 | Autoalignment and autofocus mechanism for coupling light between an optical fiber and a physical specimen An apparatus for applying an optical signal to a surface and collecting the light leaving the surface in response to the application of the optical signal. The optical signal and the collected light traverse an optical fiber having an end proximate to the... | 11/13/2001 |
| 6313459 | Method for calibrating and operating an uncooled avalanche photodiode optical receiver The present invention comprises an operational algorithm, and calibration process, for an avalanche photodiode (ADP) receiver which takes into account an APD behavioral model. In-situ optical and electrical measurements (calibration) of the APD are perfor... | 11/06/2001 |
| 6313452 | Microscopy system utilizing a plurality of images for enhanced image processing capabilities A microscopy system comprising a microscope including a stage, at least one magnifying lens, and a lens controller, a video capture device coupled to the microscope capturing a plurality of images of an object on the stage of the microscope and a processi... | 11/06/2001 |
| 6307210 | Device for imaging object to be inspected and device for inspecting semiconductor package An inspection object imaging device, which images a plurality of objects to be inspected that are located at different imaging distances from imaging means, in which a light transmitting optical member which has a predetermined refractive index and a thic... | 10/23/2001 |
| 6303924 | Image sensing operator input device A computer input device detects images on a surface. The computer input device generates input information indicative of a change event when the device switches from reading one predetermined pattern to reading another predetermined pattern. The present i... | 10/16/2001 |
| 6303927 | Optical scan module with integral collection lens mount A scan module and an optical system such as for a bar code scanner wherein the optical system has an axis of outgoing (illumination) light offset from the axis of collected light, arranged to limit the dynamic range of the collected light and thus the dyn... | 10/16/2001 |
| 6303916 | Systems and methods for generating reproducible illumination A plurality of systems and methods for generating reproducible illumination by adjusting solid-state devices regulated by a control system that illuminate sample parts in a compensated, standardized manner. An illumination system includes an illumination ... | 10/16/2001 |
| 6300620 | Optical sensor for pointing device with conical disks and single photodetector A method and apparatus for eliminating in at least one light emitter and light detector in a mouse design. This is done by using two conical shaped encoder wheels positioned so that they are almost touching each other. A single light emitter then is used ... | 10/09/2001 |
| 6300621 | Color calibration device and method A calibration apparatus for calibrating a color imager, the calibration apparatus comprising an integrating sphere having at least one port, at least one light emitting diode, and an optical baffle so that light provided by the at least one light emitting... | 10/09/2001 |
| 6300618 | High speed 3-dimensional confocal microscopic equipment Confocal microscope equipment which provides real time 3-dimensional display by scanning at high speeds in the direction of the optical axis, wherein sliced images of a sample are obtained by scanning the sample surface with a light beam using a confocal ... | 10/09/2001 |
| 6297493 | Photoelectric converter with a plurality of photoelectric conversion layers deposited in a predetermined orientation relative to one another A photoelectric converter includes a plurality of substrates, which are located adjacent to each other and on which a plurality of photoelectric conversion devices are two-dimensionally arranged, either scan circuits or detection circuits, at least, that ... | 10/02/2001 |
| 6285023 | Apparatus for generating origin signal of optical linear scale In a linear scale, a reference point signal is outputted as a signal which is synchronized with an absolute value. 8 is a a/b phase signal generator forming a two-phase a/b signal of a moving signal by an absolute value which divided the inside of pitch w... | 09/04/2001 |
| 6285033 | Positional deviation detecting method and device manufacturing method using the same A method of detecting a relative positional deviation between first and second objects by use of a first alignment mark provided on the first object and a second alignment mark provided on the second object, wherein the first alignment mark includes a fir... | 09/04/2001 |
| 6281488 | Fiber optic coupled optical sensor A displacement sensor includes a first optical fiber for radiating light to a target, and a second optical fiber for receiving light from the target. The end of the first fiber is adjacent and not axially aligned with the second fiber end. A lens focuses ... | 08/28/2001 |
| 6278109 | Facet tracking using wavelength variations and a dispersive element An improved raster scanner, and electrostatographic printing machines which use such scanners, in which facet tracking is achieved by incorporating a semiconductor laser having an electronically tunable wavelength and a wavelength dispersive element which... | 08/21/2001 |
| 6274864 | Mechanical delimitation of the tolerances of an optical transmission section The invention concerns a scanning device which scans a code disc by means of a subassembly comprising a radiation emitter and a radiation receiver. The object of the invention is to emulate the length ratio of the tooth to the tooth space by the ratio, on... | 08/14/2001 |
| 6274860 | Device for concentrating optical radiation A holographic planar concentrator (HPC) for collecting and concentrating optical radiation is provided. The holographic planar concentrator comprises a planar highly transparent plate and at least one multiplexed holographic optical film mounted on a surf... | 08/14/2001 |
| 6271512 | Optical system for detecting obstruction An obstruction detection system utilizes a segmented optical detector and detector-specific signal processing to optically detect the presence of a small object within a defined plane and to screen out interfering signals. In one application, the obstruct... | 08/07/2001 |
| 6268599 | Optical sensor switch system for a scanner An optical sensor switch system is used to effect a selection function of a scanner. The depressed switch for a selected function changes the light intensity incident on the pixels of a light sensitive panel in two steps. This change in light intensity ac... | 07/31/2001 |
| 6268601 | Apparatus for determing the position of a rotating shaft An apparatus is provided for determining the position of a shaft that is rotatably displaceable about a longitudinal axis. The apparatus includes a source of light energy, a light detecting device arranged adjacent the shaft. A rotatably displaceable disk... | 07/31/2001 |
| 6268612 | Moisture sensor with autobalance control An autobalance control circuit for use in a moisture sensor which senses moisture on the surface of a transparent material. The moisture sensor includes detectors for receiving emitter signals which are influenced by moisture on the transparent material. ... | 07/31/2001 |
