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| Number | Title | Issue Date |
| 7340930 | Method for securing a machine tool and opto-electronic sensor for carrying out such a method The invention relates to a method for securing a machine tool comprising a first tool part that carries out work movements in the direction of a second tool part in order thereby to carry out a machining process on a workpiece, wherein an optoelectronic sensor monit... | 03/11/2008 |
| 7253910 | Optical measuring device An optical measuring device capable of improving the precision of detection of contamination on a protective glass is disclosed. With threshold values as large as 90%, 50%, 10% of a peak value of a scan signal, measured values Q90, Q50, Q1... | 08/07/2007 |
| 7245122 | Vane actuated magnetic drive mode sensor A vane actuated drive mode sensor is generally composed of two primary components, including a drive mode sensor array and an actuator. The sensor array can be provided as a housing composed of a plurality of Hall Effect (HE) sensors, magnets and the electronics ass... | 07/17/2007 |
| 7194166 | Use of waveguide grating couplers in an optical mux/demux system A group of waveguide grating couplers is disposed on a semiconductor substrate. The grating couplers are all within a spot illuminated on the substrate by a light from an optical fiber. The light propagating in the fiber is wavelength division multiplexed (WDM) and ... | 03/20/2007 |
| 7149632 | On-line system and method for processing information relating to the wear of turbine components A method comprises storing data relating to the wear of a component of at least one turbine system in a database of a system for processing wear related information, generating a displayable menu containing a plurality of user-selectable links respectively associate... | 12/12/2006 |
| 7129507 | Chip mis-position detection method The invention is a method for detecting float or peel of semiconductor chips arranged in X and Y axes directions diced and bonded to a dicing tape on a stage. The method includes detecting float or peel of the semiconductor chips in a respective horizontal or longit... | 10/31/2006 |
| 7126145 | Frame transfer prober A frame transfer prober 1, for carrying out an electrical property test on a number of semiconductor chips 10 fixed on a dicing tape 11, comprises a separation detection unit 9 for detecting the separation and/or protrusion of the semicon... | 10/24/2006 |
| 7065272 | Fiber-to-waveguide coupler An optical waveguide to fiber coupler comprises a substrate, a first waveguide and a second waveguide. The first and second waveguides are formed on the substrate and intersect at a right angle. A diffraction grating structure is formed at the intersection of the fi... | 06/20/2006 |
| 7012242 | Method for optoelectronically inspecting pharmaceutical articles In a method for optoelectronically inspecting pharmaceutical capsules (2) in a capsule filling machine (1), the pharmaceutical capsules (2) are fed in single file from a station (3) where the capsules (2) are made to a capsule (... | 03/14/2006 |
| 7006732 | Polarization splitting grating couplers A polarization splitting grating coupler (PSGC) connects an optical signal from an optical element, such as a fiber, to an optoelectronic integrated circuit. The PSGC separates a received optical signal into two orthogonal polarizations and directs the two polarizat... | 02/28/2006 |
| 6927861 | Simple deterministic method for array based optical component packaging A method involves aligning each of two optical components to be joined relative to a common standard, removing the common standard, and joining each of two optical components to each other in alignment. ... | 08/09/2005 |
| 6762426 | Threaded fastener inspection method An optical inspection system is disclosed to detect any cross threading or improper insertion of a threaded fastener after being affixed to a workpiece. A plurality of laser devices is used for said inspection with the projected laser beams becoming partially blocke... | 07/13/2004 |
| 6346988 | Laser position array optical measuring system and method An optical measuring system capable of high resolution measurement of objects, and a method of measuring the same, are provided. The optical measuring system is formed in one integral, portable unit, and includes a laser source having associated optics fo... | 02/12/2002 |
| 6303938 | Method and device for detection of untextured yarn sections in textured filament yarns A method for detecting untextured or defectively textured yarn segments in textured filament yarns during the texturing process, in which the textured yarn is continuously measured by the measurement, conditioning and evaluation of high-frequency measurem... | 10/16/2001 |
| 6243011 | Optoelectric safety system for a folding press An optoelectric safety system which protects a free entrance or access opening in a machine's protective housing or protective cage at all times during operation. The system includes a reflection light scanner on the machine frame above and adjacent the f... | 06/05/2001 |
| 5970433 | Laser obstacle detection method and sensor A sensor detects the presence or the absence of an obstacle by radiating a laser beam to the outside of a casing through a light projecting mirror and by letting the reflected light from an obstacle enter a light receiving element through a light receivin... | 10/19/1999 |
| 5799403 | Standoff crown measurement device This invention is a method for remotely obtaining roadway crown point elevation and horizontal location based on projecting a horizontal laser beam configured vertically in either a continuous or discrete manner across the roadway surface at a predetermin... | 09/01/1998 |
| 5705817 | Apparatus for optical monitoring of a thread for irregularities An apparatus for optical monitoring of at least one thread for irregularities, in particular for filament breaks in multifilament yarns, with a radiation source, a radiation detector, and a ray beam transmitted by the radiation source and received by the ... | 01/06/1998 |
| 5670773 | Process for the space localization of the focal point of a laser beam of a machining machine and equipment for performing this process In order to localize in space a focal point of a laser beam (14) of a machining machine with respect to a work table (18) thereof, the table is fixed an equipment (22) comprising a square target (20) and impact detectors such as illumination or light sens... | 09/23/1997 |
| 5504346 | Insitu detection of tube sagging in semiconductor diffusion furnace using a laser beam that is blocked when tube sags Semiconductor wafers are processed in a semiconductor diffusion furnace. During processing, the semiconductor wafers are placed in a quartz tube. Also during processing, a laser beam is transmitted below a top surface of the quartz tube. While the quartz ... | 04/02/1996 |
| 5316562 | Optical fiber tension monitoring technique As an optical fiber (12) is being drawn, air (14) is directed at a portion of the fiber as a succession of air pulses, the pulses having a frequency near the natural frequency of the fiber portion. The frequency of the air pulses is then varied over a ran... | 05/31/1994 |
| 5311291 | Measuring method and device, in particular for measuring cigarettes, using a laser beam At least one dimension of the transverse cross-section of an object is measured in a predetermined direction by scanning the cross-section at constant speed with a laser beam which is moved in the plane of the cross-section but remains perpendicular to th... | 05/10/1994 |
| 5162659 | Method and apparatus for noncontact inspection of engine blades A laser scanning device is employed in conjunction with a unique blade mounting assembly to provide for the noncontact inspection of turbojet engine blades. The laser scanner provides a stationary laser scanning beam. The blade mounting assembly includes ... | 11/10/1992 |
| 5160850 | Light beam interrupt detection apparatus for use in a vibrating environment A light beam interrupt detection apparatus for use in a vibrating environment comprises a light source for producing a beam of light, a light receiver for receiving and detecting the beam, the receiver having a detector surface sufficiently larger than th... | 11/03/1992 |
| 5069550 | Optical measuring machine with detachable operating board An optical measuring machine is provided with an operating board which is provided separately from the main body of the optical measuring machine and which inputs and/or outputs measuring information and a retaining portion for removably retaining the ope... | 12/03/1991 |
| 4982103 | Process and apparatus for the non-contact measurement of the geometric contours of a part Process and apparatus for measuring or checking the geometric contours of a part without contact, wherein the part is illuminated by a focussed laser beam and a reflected ray is detected by means of an array of photo diodes, the position of the part and t... | 01/01/1991 |
| 4972090 | Method and apparatus for measuring and inspecting articles of manufacture for configuration An inspection and measuring apparatus comprises a housing, having a holder for supporting a workpiece for rotation about a first vertical axis and for limited rotation about an orthogonal axis, a light beam supported out from a second vertical axis for po... | 11/20/1990 |
| 4803373 | Conveyor arm apparatus with gap detection A conveyor arm apparatus unloads one by one a plurality of wafers which are stored in a holding chamber such that a surface of one wafer faces a back surface of another wafer at a predetermined distance. Two beams parallel to a semiconductor wafer mountin... | 02/07/1989 |
| 4792695 | Contact-free measuring apparatus having an F-theta-corrected, catadioptric objective and method for using the same An apparatus for the non-contacting measurement of rod-shaped objects contains a telecentric, F-theta-corrected objective which comprises two catadioptric elements. The first catadioptric element is a Mangin mirror and the second catadioptric element is a... | 12/20/1988 |
| 4772801 | Optical light beam device for automatically controlling the bending operation when bending with a press brake An optical light beam device for automatically controlling the bending operation when bending with a press brake, comprising an emitter (1), mounted on one side of the press, adapted to produce a large-diameter light beam (8), directed parallel to the ben... | 09/20/1988 |
| 4743769 | Non-contacting measuring apparatus for measuring a displacement in dependence on the incidence of a laser beam on a laser beam detector A non-contacting measuring apparatus for measuring a displacement in dependence on the incidence of a laser beam on a laser beam detector, e.g., for determining dimensions, the position or the spacing of objects, comprises a scanning unit for moving a las... | 05/10/1988 |
| 4692629 | Optical type measuring scanner In an optical measuring device which comprises a polygonal rotary mirror for reflecting an incident light beam into a rotary scanning light beam, a collimator lens for converting the rotary scanning light beam into a parallel scanning light beam and a lig... | 09/08/1987 |
| 4107539 | Laser workpiece position and presence inspector and machine control governor Mounted adjacent and in alignment with the workpiece supporting portion of a workpiece-shape-altering machine, such as the lower die of a stamping press, is a laser beam source, the outgoing beam from which passes through a beam splitter which divides the... | 08/15/1978 |
