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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8168930 | Beam power for local receivers A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request. ... | 05/01/2012 |
| 8158916 | Color controlled light source and a method for controlling color generation in a light source This invention relates to a color controlled light source comprising a plurality of colored light elements; a detector for detecting the light output of the light source and generating a detection signal; and a color control unit for generating driving signals to sa... | 04/17/2012 |
| 8143561 | MEMS scan controller generating clock frequency and control method thereof A Micro Electronic Mechanical System (MEMS) scan controller generating clock frequency and a control method thereof are disclosed. The MEMS scan controller is for a MEMS mirror in a bi-direction laser scanning units (LSU). By detecting resonant frequency of the MEMS... | 03/27/2012 |
| 8093540 | Method of focus and automatic focusing apparatus and detecting module thereof A method of focus and a focusing apparatus and a detecting module are provided. The detecting module includes an ellipse curved-surface reflection device and a light detector. The ellipse curved-surface reflection device has a beam gate, a first focus and a second f... | 01/10/2012 |
| 8026466 | Beam power with receiver impingement detection A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request. ... | 09/27/2011 |
| 7964832 | Evaluation device of optical writing device and evaluation method thereof Disclosed is an evaluation device of an optical writing device, comprising: the optical writing device; a light reception section; a drive section; and a control section to light each light emitting element in a previously set lighting pattern based on a light amoun... | 06/21/2011 |
| 7956311 | Spectroscopic device Quantitative comparison or calculation of a plurality of images in different transmission bands is facilitated even if the transmission bandwidth of the spectroscopic element is different at different wavelengths. Provided is a spectroscopic device (1) includ... | 06/07/2011 |
| 7952056 | Extended dynamic range light detection systems and methods Systems and methods for detecting and measuring light emitted from a sample and having a large dynamic range, e.g., a range of luminous intensity covering six or more orders of magnitude, that may be difficult to fully detect using a single detector with a limited d... | 05/31/2011 |
| 7868278 | Eye-protection device having dual high voltage switching An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generat... | 01/11/2011 |
| 7847225 | Optical neural network An input layer outputs light having a relatively narrow emission angle distribution to a middle layer as an output signal if the signal level of input signal is relatively high and outputs light having a relatively broad emission angle distribution to the middle lay... | 12/07/2010 |
| 7834302 | Eye safety protection from high power laser light A laser safety device and method of protecting against harmful levels of radiation. The device includes a housing with first and second apertures. A photodetector generates a first signal corresponding to a level of radiation entering the housing through the first a... | 11/16/2010 |
| 7800034 | Dazzle protection unit for a portable dazzle protection device including a light capturing element guiding light to at least one sensor A dazzle protection unit (1) for a portable dazzle protection device that includes an optical dazzle protection filter (3) and at least one sensor (5) for the sensing of incident light and for controlling the translucency of the filter (3... | 09/21/2010 |
| 7786419 | Beam power with beam redirection A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request. ... | 08/31/2010 |
| 7759620 | Fourier plane analysis and refinement of SLM calibration The present disclosure relates to phase-sensitive calibration of an SLM system. In particular, it relates to selecting among local calibrations when there is more than one calibration that satisfies a calibration intensity criteria. It utilizes information available... | 07/20/2010 |
| 7755013 | Laser guidance system for diamond wire stone cutting apparatus Disclosed is a laser guidance system for diamond wire stone cutting apparatus. The laser guidance system includes a targeting laser light source that is fitted to one of two wire guide wheels between which the cutting wire extends and travels. A photo sensor with la... | 07/13/2010 |
| 7692128 | Focus control method for an optical apparatus which inspects a photo-mask or the like A focus control method able to further correctly control a focal point of an optical system or optical apparatus. A reference system of the system as a whole is set by using a reference pattern for focal point control. A focal point of an optical apparatus for inspe... | 04/06/2010 |
| 7683299 | Extended dynamic range system design using a photomultiplier tube and solid state detector Systems and method for detecting and measuring light emitted from a sample and having a large dynamic range, e.g., a range of luminous intensity covering six or more orders of magnitude, that may be difficult to fully detect using a single detector with a limited de... | 03/23/2010 |
| 7659495 | Auto darkening eye protection device having a regulated solar power supply An auto darkening eye protection device including a shutter assembly, a control circuit, and a power supply. The control circuit includes a sensing circuit for sensing the occurrence of welding, and a delivery circuit to provide signals to the shutter assembly to ca... | 02/09/2010 |
| 7550698 | Light sensor arrangement for auto-darkening lenses and method A control for an auto-darkening lens or other optical device monitors light incident on the viewing area or in relatively close proximity to the viewing area of the lens to provide accurate light sensing and to avoid inadvertent blocking of light to one or more ligh... | 06/23/2009 |
| 7504608 | Lens adjustment assembly having an electrically active polymer A lens assembly and method of adjusting a lens assembly using an electrically active polymer element. The assembly comprises a lens; a pixel array for receiving an image through said lens via an optical path; a moveable element for changing the optical properties of... | 03/17/2009 |
| 7446292 | Eye-protection device having dual high voltage switching An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generat... | 11/04/2008 |
| 7439476 | Mirror angle control system Conventional mirror angle control systems require a detection mirror separate from a deflection mirror. Depending on the accuracy with which these mirrors are fitted relative to each other, in products incorporating such control systems, degraded control accuracy ma... | 10/21/2008 |
| 7417210 | Multi-spectral sensor system and methods A multi-spectral sensor system and methods are disclosed. One aspect of the invention comprises a multi-spectral sensor system mountable to a mobile platform. The system may comprise an image capturing system, a first translation stage affixed to the image capturing... | 08/26/2008 |
| 7397018 | Amplitude and phase controlled adaptive optics system An adaptive optics system is provided. The system includes a light source, a pair of deformable mirrors and a detection module. The light source is configured to provide an outgoing beam. The outgoing beam has an amplitude and a phase. The first deformable mirror is... | 07/08/2008 |
| RE40410 | Method and system for tracking attitude A method and system for tracking attitude of a device includes fixing a two-dimensional array of photosensors to the device and using the array to form a reference frame and a sample frame of images. The fields of view of the sample and reference frames largely over... | 07/01/2008 |
| 7369290 | Modulator bias control Approaches to bias control are disclosed for an optical modulator that modulates an optical carrier with a data input signal. In one embodiment an electrical bias input signal provided to the modulator is adjusted based on a characteristic of the data input signal d... | 05/06/2008 |
| 7350915 | Lens having at least one lens centration mark and methods of making and using same A lens having at least one lens centration mark formed on a major surface of the lens is disclosed. The lens centration mark may be located at the intersection of a first axis and the major surface, where the major surface is symmetrical about the first axis such th... | 04/01/2008 |
| 7348557 | Scanning particle beam instrument A scanning particle beam instrument is provided, the instrument including a scanner, a radiation detector and a DC amplifier, the DC amplifier being operable to amplify a signal generated by the radiation detector to produce a video signal, the instrument further in... | 03/25/2008 |
| 7350046 | Managed reliability storage system and method monitoring storage conditions Disclosed is a managed reliability storage system and method. A data storage system comprises a plurality of storage devices and at least one storage device controller and may also include additional storage device controllers, one or more host systems, and one or m... | 03/25/2008 |
| 7345802 | Laser and fiber coupling control One or more single mode waveguide devices are fiber coupled such that signals to an optical element affect the coupling of the waveguide device to an optical fiber. A number of systems and methods are disclosed to adjust the coupling of the waveguide device to the o... | 03/18/2008 |
| 7317179 | Systems and methods to shape laser light as a homogeneous line beam for interaction with a film deposited on a substrate Systems and methods are disclosed for shaping and homogenizing a laser beam for interaction with a film. The shaping and homogenizing system may include a lens array and a lens that is positioned to receive laser light from the lens array and produce a respective el... | 01/08/2008 |
| 7315347 | Exposure apparatus and device manufacturing method An exposure apparatus includes a light source, an illumination optical system for illuminating an original with light from the light source, and a projection optical system for projecting a pattern of the original, illuminated by the illumination optical system, ont... | 01/01/2008 |
| 7312863 | Motion-compensating light-emitting apparatus A light-emitting apparatus, for enabling a spot of light to be projected on a desired target located a distance away such that the spot is projectable on the desired target without any or substantially any undesired movement. The apparatus may include a housing, a l... | 12/25/2007 |
| 7292788 | Multi-beam laser communications system and method A laser communications system includes a wide-field sensor, configured to detect a first set of laser communications sources within a first field of view, a narrow-field sensor includes a tracking portion and a control portion configured to receive laser communicati... | 11/06/2007 |
| 7279882 | Method and apparatus for measuring properties of particle beams using thermo-resistive material properties A beam position detector for measuring the properties of a charged particle beam, including the beam's position, size, shape, and intensity. One or more absorbers are constructed of thermo-resistive material and positioned to intercept and absorb a portion of the in... | 10/09/2007 |
| 7280718 | Reflective adjustable optical deflector and optical device employing the same The optical deflector includes the electro-optical element to deflect light by utilizing its refractive index variation, and it also includes a reflective adjustable optical deflector element with a reflective element to reflect the deflected light. This arrangement... | 10/09/2007 |
| 7265840 | Coupling method for coupling high power optical beams into an optical waveguide A method for determining an improved alignment to couple a beam having a high power level into a waveguide. The power of the beam is reduced to a minimum test power level. The reduced-power beam is aligned in a test alignment such that it forms a beam spot on the co... | 09/04/2007 |
| 7259904 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 08/21/2007 |
| 7253898 | System for detecting droplets on a translucent surface A system which detects droplets on a translucent surface having a camera which, upon activation, acquires an image of a portion of the surface. A radiation source, upon activation, illuminates the portion of the translucent surface while a control circuit selectivel... | 08/07/2007 |
| 7253440 | Semiconductor device having at least first and second thin film transistors A semiconductor device having a substrate having an insulating surface; at least first and second semiconductor islands formed over the substrate where each of the semiconductor islands has a channel region and a pair of impurity regions; an insulating film formed o... | 08/07/2007 |
