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7948613 Optical device for measuring moving speed of an object relative to a surface  
The invention relates to sensors of the speed of movement of a vehicle over the ground. The sensor comprises illumination means for illuminating the surface and at least one optical sensor able to...
7944549 Optical screen, systems and methods for producing and operating same  
There is provided a system for forming an optical screen, including a continuous wave or pulsed laser transmitter for transmitting a beam of radiation at a predetermined wavelength and forming a...
7936450 Opto-electrical sensor arrangement  
The invention relates to an opto-electronic sensor arrangement (10) with an optical transmitter (20) and an optical receiver (30), such that the optical transmitter (20) and the optical receiver...
7933003 Method and apparatus for studying surface vibrations by moving speckle interferometer  
A method of studying a surface using an interferometer, in which there is relative motion between the surface and the interferometer, the motion having a total velocity Vtot which includes a...
7929119 Image pickup device for detecting moving speed of shot object and method thereof  
An image pickup device for detecting a moving speed of a shot object and a method thereof are described. First, a coordinate of the image pickup device and a coordinate of the shot object are...
7920250 System for the detection by a motor vehicle of a phenomenon that interferes with visibility  
A process for the detection from a vehicle of a visibility interference phenomenon, comprising the following steps: the emission of a beam of light to illuminate the rear of the vehicle, the beam...
7911614 Non-contact measurement probe  
The non-contact measurement probe is capable of dimensional measurement of a workpiece while it is being machined, and reporting dynamic error for real-time compensation by the machining tool....
7911591 Optical transit time velocimeter  
An L2F velocimeter comprises a probe for insertion into a fluid, the probe having an open area therein to allow the fluid to pass through. The probe comprises an illumination system to direct a...
7911593 Range finder/velocimeter and range-finding/velocimetry method  
A laser driver (4) causes a semiconductor laser (1) to operate such that a first oscillation period of monotonically increasing the oscillation wavelength and a second oscillation period of...
7894045 Optical air data systems and methods  
A method for remotely sensing air outside a moving aircraft includes generating laser radiation within a swept frequency range. A portion of the laser radiation is projected from the aircraft into...
7894046 Two-dimensional estimation technique for doppler optical coherence tomography (OCT)  
Optical Coherence Tomography (OCT) is a high-resolution, non-invasive technique to image subsurface tissue and tissue functions. A broadband light source illuminates an object and the reflected...
7889353 Method of measuring relative movement of an object and an optical input device over a range of speeds  
A method and optical module for measuring relative movement of an input device and object (15) along at least one measuring axis. A laser device (3) having a laser cavity is provided for...
7869008 Device of detecting light reflecting speed and direction, and method thereof  
A device of detecting light reflecting speed and directions includes a light source, a light-guided pulley, a reflector, photo detectors, barriers, a processor and a display unit. The light source...
7864305 Self-contained underwater velocimetry apparatus  
A velocimetry apparatus and method for the collection of target-specific images of fluid motions are disclosed. The apparatus includes a camera and a light source. The camera collects and provides...
7847924 Performance of an atom interferometric device through complementary filtering  
A technique is disclosed which offers an improvement in the performance of an atom interferometric (AI) sensor, such as one that is used in an accelerometer or a gyroscope. The improvement is...
7827861 Position correction in sodar and meteorological lidar systems  
A system and method for correcting wind speed and direction data collected by a sodar or lidar apparatus for the orientation and/or position of the apparatus. There are sensors mounted to the...
7816648 Electron interferometer or electron microscope  
In an electron beam interference system using an electron biprism, which is capable of independently controlling each of the interference fringe spacing s and the interference width W, both of...
7817254 Obtaining information from time variation of sensing results  
Sensing results from moving objects, e.g. from photosensing emanating light or from impedance-based sensing, can indicate sensed time-varying waveforms with information about objects. For example,...
7808618 Methods and apparatus for providing a semiconductor optical flexured mass accelerometer  
Methods and apparatus are provided for integrating various optical components onto a planar substrate using a single semiconductor material system to produce an accelerometer. A light beam is...
7787107 Motion measurement and synchronization using a scanning interferometer with gratings  
Indicating relative speed is disclosed. A first grating coupled to a first moving object is illuminated using a coherent light source to generate a first diffracted beam and a diffracted order...
7777866 Fixed difference, dual beam laser Doppler velocimetry  
A method and apparatus for laser Doppler velocity measurements with a fixed difference, dual beam receiver and using a non-laser, stable frequency reference.
7760339 Optical air data systems and methods  
Systems and methods for sensing air outside a moving aircraft are presented. In one embodiment, a system includes a laser for generating laser energy. The system also includes one or more...
7755745 Coherent doppler lidar  
A coherent Doppler lidar which can oscillate high energy pulses and output laser beams in a longer wavelength range of 1.5 μm to the atmosphere is provided. The coherent Doppler lidar has a pulse...
7746450 Full-field light detection and ranging imaging system  
Apparatuses and methods determine positional information from a reflected optical signal for an object on a per pixel basis. A spread spectrum imaging system includes a transmitting module...
7738084 Fiber optic liquid mass flow sensor and method  
A method and apparatus are provided for sensing the mass flow rate of a fluid flowing through a pipe. A light beam containing plural individual wavelengths is projected from one side of the pipe...
7719663 Heterodyne laser doppler probe and measurement system using the same  
A heterodyne laser having a first optical path for guiding excitation light and a second optical path for guiding measurement light. The heterodyne laser includes an optical probe body for...
7705972 Doppler sensor for the derivation of torsional slip, friction and related parameters  
An optical method and apparatus are described for the measurement of properties of a travel vehicle or a travel surface upon which the travel vehicle travels, which includes providing an incident...
7705971 System and method for determining crosswinds  
A system and method for measuring crosswinds includes using a laser to send a signal on a signal path, and receiving response signals backscattered off of aerosols or other materials in the...
7701560 Displacement Speed Measurement Method  
The measurement method of the displacement speed of a moving element with respect to a fixed element is performed by means of an optic measuring device comprising a first reference sensor and a...
7692773 Light emitting diode based measurement systems  
Various light emitting diode (LED) based measurement systems and methods are provided. One system includes one or more arrays of LEDs arranged along a flow path of a sample. The array(s) are...
7688348 Lidar with streak-tube imaging, including hazard detection in marine applications; related optics  
The system and method relate to detection of objects that are submerged, or partially submerged (e.g. floating), relative to a water surface. One aspect of the invention emits LIDAR fan-beam...
7684957 Counting device, distance meter, counting method, and distance measuring method  
A counting device includes a counting unit, period measuring unit, frequency distribution unit, representative value unit, and correction value unit. The counting unit counts signals input during...
7684020 Sensor system and method for detecting and identifying rapidly moving objects  
A relatively low-cost sensor can accurately detect, identify and track rapidly moving objects such as missiles, rocket propelled grenades (RPGs), mortars, explosive-driven fragments, bullets,...
7679729 Light wave radar apparatus  
A light wave radar apparatus includes a frequency deviation detecting unit 12 for detecting a frequency deviation fchirp of a light signal, and a weighted average processing unit 13 for...
7671972 Optical sensing methods and apparatus  
A method of sensing movement or proximity of objects by optical reflection is provided. The method includes the steps of transmitting a train of optical pulses towards a destination, sensing...
7667826 System and method for motion based velocity discrimination for doppler velocimeters  
A Doppler velocimeter apparatus and method of forming same. In one implementation a coherent light source is used for generating a beam of coherent light. An optical fiber receives the beam of...
7659967 Translational optical flow sensor  
An optical flow sensor is presented that directly measures the translational component of the optical flow experienced by the sensor while it is on a moving platform. The translational optical...
7616293 System and method for traffic monitoring, speed determination, and traffic light violation detection and recording  
A system of lasers and detectors to detect the presence of objects and determine their speed is disclosed. The system comprises of a pair of lasers and a pair of detectors focused through a single...
7616294 Laser anemometry with improved eye safety  
The invention relates to an optical measurement device intended for determining a relative velocity vector {right arrow over (v)} of a carrier, such as an aircraft, with respect to a reference...
7586587 Stand-alone speedometer using two spaced laser beams  
A stand-alone speedometer directly measuring the translational speed of a moving body comprises a source emitting two spaced light beams which interfere each other, mirrors or beam splitters...
7576839 Range and velocity sensing system  
The present invention relates to a method and apparatus used to calculate at least one velocity component for a target within the region. The invention employs an energy source which is activated...
7564539 Optical air data systems and methods  
A method for remotely sensing air outside a moving aircraft includes generating laser radiation within a swept frequency range. A portion of the laser radiation is projected from the aircraft into...
7561254 Traveling system for mobile bodies and control method therefor  
A traveling system for mobile bodies includes a control device for controlling traveling operation of a first and a second mobile bodies based on detection information provided by a relative...
7548306 Optical encoder, method for preparing the optical encoder, and moving speed controlling device and apparatus using the optical encoder  
An optical encoder including a sensor module including a light emitting member, a light receiving member opposite to the light emitting member to receive the emitted light, and at least one boss...
7545486 Apparatus and method for determining the closing velocity of a vehicle door  
An apparatus for measuring a closing velocity of a vehicle door includes a housing, first and second sensors, and a processor. The first sensor is coupled to the housing, has a first detection...
7542130 Moving body measuring apparatus  
An apparatus has an optical member having a boundary surface on which light is incident, the optical member being adapted to transmit light entering the boundary surface from one side and to...
7533572 High bandwidth fiber optic vibration sensor  
Apparatus and method for monitoring vibration levels in rotatable machinery (52). In one embodiment, a system (50) includes a source (66) for generating coherent radiation (70) and a first...
7535580 Image forming apparatus and image forming method  
An image forming apparatus which can form an even image while maintaining high resolution. A speckle pattern detecting unit detects a speckle pattern on a surface of a photosensitive drum. A motor...
7523657 Method and device for measuring air turbulence in the surroundings of an aircraft  
A device for measuring air turbulence in the surroundings of an aircraft includes a measurement system having lidars which are mounted on the aircraft and which are intended to carry out, during a...
7505121 Multi-beam optical range sensor and self-propelled cleaner and air-conditioner equipped with the same  
In this multi-beam optical range sensor, since the diffraction grating splits output light of the light-emitting element into a plurality of beams, a plurality of beams can be outputted from the...