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9041917 Range sensor and range image sensor  
The range image sensor is a range image sensor which is provided on a semiconductor substrate with an imaging region composed of a plurality of two-dimensionally arranged units (pixel P), thereby...
9030652 Non-contact, optical sensor for synchronizing to free rotating sample platens with asymmetry  
A method and apparatus for determining the synchronicity of a rotary platen (22) in a vacuum deposition chamber (24). A light source (64) projects a highly collimated light beam (66) onto the...
9026278 LDV system for measuring wind at high altitude  
A method of using LIDAR on an airborne vehicle is described. A beam of radiation is transmitted to target areas at least one of above, below, and in front of the airborne vehicle, the target areas...
9019481 Colored noise reduction method and device for optical remote airflow measurement apparatus  
An object of the present invention is to provide an optical remote airflow measurement apparatus with which even colored noise corresponding to an external environment of the apparatus can be...
9007660 Marking and/or scanning head, apparatus, and method  
The invention relates to a marking and/or scanning head comprising a plurality of receiving spaces in which individual marking and/or sensing devices can be arranged for marking and/or scanning an...
9007569 Coherent doppler lidar for measuring altitude, ground velocity, and air velocity of aircraft and spaceborne vehicles  
A Doppler lidar sensor system includes a laser generator that produces a highly pure single frequency laser beam, and a frequency modulator that modulates the laser beam with a highly linear...
9007570 Airborne wind profiling algorithm for Doppler Wind LIDAR  
Systems, methods, and devices of the present invention enable airborne Doppler Wind LIDAR system measurements and INS/GPS measurements to be combined to estimate wind parameters and compensate for...
8988681 Spray droplet sizer  
A spray sizer is provided that can measure the average droplet size in a spray. The spray sizer first separates a section of the spray for measurement. This section of the spray is passed through...
8988662 Time-of-flight calculations using a shared light source  
In some embodiments, distances associated with a surface may be calculated using time-of-flight (ToF) of a plurality of pulses of light occurring at a predetermined frequency. Reflected light from...
8982336 Physical quantity sensor and physical quantity measuring method  
A physical quantity sensor includes a semiconductor laser for irradiating an object with a laser beam, and a laser driver for operating the semiconductor laser in such a way that a first...
8982334 Method of operating a SMI sensor and corresponding sensor device  
The present invention refers to a method of operating a self-mixing interference sensor and a corresponding self-mixing interference sensor device. In the method the laser (1) of the device is...
8982335 Marking or scanning apparatus with a measuring device for measuring the speed of an object and a method of measuring the speed of an object with such a marking or scanning apparatus  
Apparatus for marking and/or scanning (m/s) an object comprising a m/s head (20) having a plurality of receiving spaces (24) for m/s devices (40), a driving mechanism for moving the object, a...
8976342 Method for estimating the transverse component of the velocity of the air in a doppler LiDAR measurement  
A method for estimating the transverse component Vtrans of the velocity of the air comprises the following steps: emitting a focused laser beam; acquiring an electrical signal resulting from the...
8964170 System and method for assessing the flow of a fluid  
A system for assessing the flow of a fluid. The system can include a light source, a fiber-optic system optically coupled to the light source, which is arranged to provide a reference beam and an...
8953035 Particle image velocimetry method, particle image velocimetry method for 3-dimensional space, particle image velocimetry system, and tracer particle generating device in particle image velocimetry system  
A particle image velocimetry system is provided which supplies tracer particles to a flow field around an object (12) from tracer particle supply means, takes an image of reflected light by...
8946628 Electron beam interference device and electron beam interferometry  
There is a limit in range and distance in which an electron beam can interfere and electron interference is implemented within a range of a coherence length. Therefore, interference images are...
8947647 Range-resolved vibration using large time-bandwidth product LADAR waveforms  
In one aspect, a method includes forming range bins from range compressed data, the range compressed data comprising a train of coherent pulses formed based on a transmitted signal from a laser...
8947648 Systems and methods for signal processing in optical imaging systems  
Systems, devices and methods of producing an image are provided. A electro-magnetic radiation source provides electro-magnetic radiation to a sample and a reference. A detector/interferogram unit...
8941820 Particle image velocimetry system for three-dimensional space  
An imaging device can take an image of a flow field including tracer particles includes a compound-eye lens formed from a large number of monocular lenses, which take images of images taken by an...
8941819 Laser speed gun optical system  
A laser speed gun comprises a laser ray transmitter provided on an optical axis with a laser ray emitting device and with a short distance lens and located at an intermediate location therebetween...
8934088 Sound-creation interface  
A sound-creation interface is used to create a sound-creation instrument such as a musical instrument. The musical instrument includes a mechanical-human interface such as a set of keys, strings...
8930049 LDV for airdrops  
A method of using a light detection system for increasing the accuracy of a precision airdrop is described. Radiation is transmitted to target areas between an airborne vehicle and a dropzone...
8928866 Velocity measuring device and method  
A velocity measuring device emitting a laser beam at a web; a photodiode converting an optical output of the laser into an electric signal; a laser driver operating the laser to alternate a first...
8928863 Systems and methods for generating an optical pulse  
A system for providing a sliced optical pulse is disclosed. The system can comprise a master oscillator (MO) configured to generate an optical pulse at a first spectral bandwidth. The system can...
8917383 Wind turbine blade provided with optical wind velocity measurement system  
A wind turbine includes a number of blades and an optical measurement system comprising a light source, such as a laser, an optical transmitter part, an optical receiver part, and a signal...
8913247 Device and method for interferometric vibration measurement of an object  
A device for interferometric vibration measurement, having a radiation source for generating an original beam, a first beam splitter for dividing it into measuring and reference beams, a detector...
8913232 Methods and systems for measuring speckle translation with spatial filters  
Two or more spatial filters are used in determining velocity based on speckle translation. A light source may be turned on, turned off, or both for a variable amount of time during operation. The...
8908160 Optical air data system suite of sensors  
Systems and methods for laser based measurement of air parameters for use, e.g., on aircraft are disclosed. An example system includes a coherent source of radiation, a modulator, a transceiver,...
8891069 Coherent LIDAR system based on a semiconductor laser and amplifier  
The present invention relates to a compact, reliable and low-cost coherent LIDAR (Light Detection And Ranging) system for remote wind-speed determination, determination of particle concentration,...
8885153 Differentiation of flow cytometry pulses and applications  
A method of analyzing pulses from a flow cytometer in which particles in a fluid pass through an excitation volume of an electromagnetic radiation and interact with the electromagnetic radiation...
8879051 High power laser doppler velocimeter with multiple amplification stages  
Systems and methods for laser based measurement of air parameters are disclosed. An example system includes a source of radiation, an amplification system with one or more power amplification...
8873027 Cell observation device and cell observation method  
A cell observation device is provided with a reflection interference shutter 106A which adjusts a light quantity of light emitted from a reflection interference measurement light source 106, a...
8867025 Aerial, landing, and takeoff aircrafts crash avoidance system  
An aerial, landing, takeoff, aircraft collision avoidance system (10) that automatically operates an audible and visual display warning system within an aircraft by sensing when there is an...
8842263 Method of, and apparatus for, furnishing information to determine the position of a body  
To determine two positional co-ordinates, of a point (D) within a space, a beam (10) a radiation is caused to illuminate a part of the space and is deflected cylindrically over the space, the beam...
8836922 Devices and methods for a rotating LIDAR platform with a shared transmit/receive path  
A LIDAR device may transmit light pulses originating from one or more light sources and may receive reflected light pulses that are then detected by one or more detectors. The LIDAR device may...
8804103 Velocity measuring system  
A laser Doppler velocimeter uses self-mixing amplification of backreflections from scatterers below the surface of a flow. A time domain signal is divided into segments that are roughly equal to a...
8804102 Laser scan speed calibration  
The invention relates to a method of verifying a scan speed in a laser scanning system. The method includes modulating the laser of the system to form a periodically modulated feature from which...
8797514 Localized dynamic light scattering system with doppler velocity measuring capability  
A localized dynamic light scattering measurement system includes a beam displacer for splitting an incident beam having two orthogonal linearly polarized beam components with slightly different...
8781687 Security system comprising a self-mixing laser sensor and method of driving such a security system  
A security system is described, comprising a sensor module (15) which accommodates a laser sensor (10) working with self-mixing interference. The laser sensor (10) generates measurement data which...
8780334 Topographical profiling with coherence scanning interferometry  
Determining a height profile of a test object surface includes obtaining, from a scanning interferometry device, scanning interferometry data for the test object surface, calculating a coherence...
8773647 Device for measuring speed of material  
A device for measuring a speed of a material includes a body unit disposed at an exit side of a rolling stand and placed below a material which is transferred from the rolling stand; and a speed...
8767193 Doppler tracking in presence of vehicle velocity uncertainty  
Methods for tracking the relative velocity between a vehicle and a target that uses both a measured velocity as well as an estimate of the velocity that is based on tracking the peaks in a laser...
RE44976 Speed and acceleration monitoring device using visible laser beams  
Apparatus for obtaining the speed and acceleration of a motor vehicle in which the speed and acceleration are used in combination with exhaust emissions data obtained from the motor vehicle to...
8760635 Displacement measuring apparatus and velocity measuring apparatus which measure displacement amount of moving object  
A displacement measuring apparatus 100 which measures a displacement amount of a moving object 102 includes a light source that irradiates the moving object 102 using luminous flux emitted from a...
8754390 Generating pulse parameters in a particle analyzer  
A method is provided for generating measurement parameters for a particle sample in a particle analyzer. The method includes, interrogating the particle sample with a triggering interrogator and...
8749766 Optical airflow sensor  
An optical fluid flow sensor and methods are presented. An optical fiber bends in response to a fluid flow, and a light source coupled to the optical fiber transmits light to the optical fiber....
8749765 Application using a single photon avalanche diode (SPAD)  
A sporting device may include a proximity detector, and a housing for carrying the proximity detector. The proximity detector may comprise a single photon avalanche diode for measuring the speed...
8743351 Velocity measuring system  
A laser Doppler velocimeter uses self-mixing amplification of backreflections from scatterers below the surface of a flow. A time domain signal is divided into segments that are roughly equal to a...
8743350 Measuring device for characterizing two-phase flows  
The invention relates to a device (1) for characterizing a two-phase flow in a channel (11), and to a related method. The device includes: a light source (10) for illuminating the channel (11), in...
8711337 Passive translational velocity measurement from optical information  
The invention is a passive method to measure the translational speed of a visual scene using the distribution of light intensities. The invention combines two principles: perspective distortion...