序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Fourier telescopic imaging system and method US12381023 2009-03-05 US08058598B2 2011-11-15 Dave Sandler; Brett Spivey; Louis Cuellar; Paul Fairchild
A system and method for imaging far away fast moving objects such as satellites in low earth orbit. The object to be imaged is illuminated simultaneously with a composite beam comprised of a large number of separate laser beams from a large number of laser sources each from a separate position with each of the separate laser beams shifted in frequency with respect to each other beam so as to produce a large number of beat frequencies in the composite beam. The positions of the laser sources are changed rapidly during an illumination period of a few seconds. Light reflected from the object is collected in a large number of light buckets and information defining the intensity of the collected reflected light as a function of time is stored. The positions and frequencies of each of the laser sources are also recorded and stored as a function of time. The stored information defining the intensity of the collected reflected light is analyzed by one or more computer processors utilizing special algorithms to produce a image of the object.
162 Servo-Controlled Bistatic Anemometric Probe US12964393 2010-12-09 US20110141470A1 2011-06-16 Alain RENARD; Philippe RONDEAU; Xavier LACONDEMINE
Bistatic anemometric optical probes include an emitting first optical head that illuminates a measurement region and a receiving second optical head. The probe includes: optomechanical movement means for moving one of the optical axes of the optical heads in at least one direction called the measurement direction, the optical axis moved being the movable optical axis; measuring means arranged so as to distribute the intensity of the beam backscattered from the measurement region in at least two directions located on either side of the measurement direction and denoted servo-control directions; and a servo-control device connected to the measuring means and to the optomechanical means of moving, said servo-control device including functions making it possible, on the one hand, to determine, from knowledge of the intensity of the backscattered beam in the two servo-control directions, the offset between the measurement direction of the movable optical axis and a direction, called the optimal direction, making it possible to maximize the intensity of the backscattered beam and, on the other hand, to servo-control the direction of said movable optical axis to the optimal direction.
163 Optical screen, systems and methods for producing and operating same US11911043 2006-04-09 US07944549B2 2011-05-17 Ram Oron; Doron Nevo; Moshe Oron; Sharon Goldstein
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 planar or curved surface to be traversed by a moving object, at least one receiver including an array of detectors for receiving reflected or scattered beam radiation from the object and directing it towards the detectors for producing a signal, and a detection logic receiving the signal and determining parameters selected from the group of spatial position, velocity and direction of propulsion of them moving object. A method for detecting a moving object is also provided.
164 Imaging semi-active laser system US11279435 2006-04-12 US07719664B1 2010-05-18 Edward Max Flowers
A method and apparatus image a target in a SAL system. The method includes receiving on-board a platform a target designation originating from a laser source off-board the platform; homing the platform on a target responsive to the received target designation; imaging the target from the target designation; and aiming the platform at a point on the target selected from the image. The apparatus includes a receiver capable of receiving and imaging a target designation originating from a laser source off-board the apparatus; at least one flight control mechanism; and a controller. The controller is capable of processing a received target designation and issuing navigation control guidance commands to the flight control mechanism to: home the apparatus on a target responsive to a received target designation; and aim the apparatus at a point on the target selected from the image of the target.
165 Optical air data system US11927196 2007-10-29 US07518736B2 2009-04-14 Paul Byron Hays; Jane Camile Pavlich; Greg Alan Ritter
At least one second beam of light from a first beam of light generated by a laser is directed into an atmosphere. Light therefrom scattered by molecules or aerosols in the atmosphere is collected by at least one telescope as at least one light signal, which together with a reference beam from the first beam of light are simultaneously processed by an interferometer, and resulting fringe patterns are imaged onto a detector adapted to output a resulting at least one signal responsive thereto. In various aspects: a data processor gates the signal to provide a range-responsive measurement; the light signal is multiplexed; a circle-to-line interferometer optic transforms an at least partially circular fringe pattern to a substantially linear fringe pattern; or a CCD detector provides for recording a range-resolved image by successively transferring charges from one adjacent row of photosites to another.
166 Optical air data system US11927052 2007-10-29 US07505145B2 2009-03-17 Paul Byron Hays; Peter Tchoryk, Jr.
At least one second beam of light from a first beam of light generated by a laser is directed into an atmosphere. Light therefrom scattered by molecules or aerosols in the atmosphere is collected by at least one telescope as at least one light signal, which together with a reference beam from the first beam of light are simultaneously processed by an interferometer, and resulting fringe patterns are imaged onto a detector adapted to output a resulting at least one signal responsive thereto. In various aspects: a plurality of transversely separated light collectors collected the scattered light; at least two telescopes are associated with a common second beam of light; or the telescope is coupled to a gimble mount that provides for positioning a region of overlap of the second beam of light with the field of view of the telescope.
167 OPTICAL AIR DATA SYSTEM US11927243 2007-10-29 US20080180691A1 2008-07-31 Paul Byron Hays; Michael Thomas Dehring; Jane Camile Pavlich; Peter Tchoryk; Charles J. Richey; Anthony Beckman Hays; Gregory Joseph Wassick; Greg Alan Ritter
At least one second beam of light from a first beam of light generated by a laser is directed into an atmosphere. Light therefrom scattered by molecules or aerosols in the atmosphere is collected by at least one telescope as at least one light signal, which together with a reference beam from the first beam of light are simultaneously processed by a Fabry-Pérot etalon, and resulting fringe patterns are imaged onto a detector adapted to output a resulting at least one signal responsive thereto.
168 OPTICAL AIR DATA SYSTEM US11927196 2007-10-29 US20080180690A1 2008-07-31 Paul Byron HAYS; Michael Thomas Dehring; Jane Camile Pavlich; Peter Tchoryk; Charles J. Richey; Anthony Beckman Hays; Gregory Joseph Wassick; Greg Alan Ritter
At least one second beam of light from a first beam of light generated by a laser is directed into an atmosphere. Light therefrom scattered by molecules or aerosols in the atmosphere is collected by at least one telescope as at least one light signal, which together with a reference beam from the first beam of light are simultaneously processed by an interferometer, and resulting fringe patterns are imaged onto a detector adapted to output a resulting at least one signal responsive thereto. In various aspects: a data processor gates the signal to provide a range-responsive measurement; the light signal is multiplexed; a circle-to-line interferometer optic transforms an at least partially circular fringe pattern to a substantially linear fringe pattern; or a CCD detector provides for recording a range-resolved image by successively transferring charges from one adjacent row of photosites to another.
169 OPTICAL AIR DATA SYSTEM US11927155 2007-10-29 US20080117433A1 2008-05-22 Paul Byron Hays; Michael Thomas Dehring; Jane Camile Pavlich; Peter Tchoryk; Charles J. Richey; Anthony Beckman Hays; Gregory Joseph Wassick; Greg Alan Ritter
At least one second beam of light from a first beam of light generated by a laser is directed into an atmosphere. Light therefrom scattered by molecules or aerosols in the atmosphere is collected by at least one telescope as at least one light signal, which together with a reference beam from the first beam of light are simultaneously processed by an interferometer, and resulting fringe patterns are imaged onto a detector adapted to output a resulting at least one signal responsive thereto. A data processor determines at least one air data product responsive thereto.
170 System and method of detecting driving conditions for a motor vehicle US11031268 2005-01-07 US07350945B2 2008-04-01 Pierre Albou; Joël Lelevé
A system for a motor vehicle for detecting driving conditions on a road, including a nebulosity, the range of visibility in the presence of a nebulosity or the distance between an obstacle in the road and the motor vehicle. The system includes a headlight which emits a visible light beam and an infrared light beam, at least one light sensor which receives at least a portion of the infrared beam reflected back to the vehicle, a optical device for directing at least a part of the reflected infrared beam to the light sensor and a device for detecting the modulated signal of the reflected infrared beam and determining at least one driving condition based on a comparison of the reflected infrared beam modulated signal and the corresponding emitted infrared beam modulated signal.
171 Wind speed measurement apparatus and method US10564005 2004-07-09 US07311000B2 2007-12-25 David Arthur Smith; Michael Harris
A buoyant platform apparatus, such as a buoy, is described that comprises a laser radar (lidar) wind speed measurement device. The lidar is arranged to make wind velocity measurements at one or more remote probe volumes of known position relative to said platform. The wind speed measurement apparatus may further comprise motion sensing means that, in use, monitor motion of the platform allowing wind speed at an absolute position in space to be measured. Wind velocity data may also be compensated for platform movement.
172 On-board light source based gain correction for semi-active laser seekers US11139098 2005-05-26 US20060266919A1 2006-11-30 William Alexander; David Schorr
The invention provides a method and apparatus for correcting for gain changes in detectors in a guided vehicle. In one version of the invention, an on board light source is used to generate a reference set of detector gains, which are stored in computer memory. The on board light source is then pulsed at subsequent times and the signals generated by the detectors are compared to the reference set of detector gains to determine whether any gains have changed.
173 System and method of detecting driving conditions for a motor vehicle US11031268 2005-01-07 US20050180149A1 2005-08-18 Pierre Albou; Joel Leleve
The invention provides a system for detecting driving conditions on a road, mounted on a motor vehicle and comprising: at least one headlight having a first light source for emitting a visible light beam, and at least one light source which is capable of being modulated, in particular at high frequency, and which emits an infra red light beam towards the scene along the road in front of the vehicle, at least one video camera for taking images of that scene, at least one light sensor for receiving the infra red light beam reflected by the scene, and optical means for directing at least part of the reflected infra red beam towards the sensor.
174 测距装置及其集成系统 CN201620367702.8 2016-04-27 CN205826866U 2016-12-21 B·雷; P·梅洛特; J·K·莫雷; G·斯托姆
本实用新型公开了一种测距装置及其集成系统,包括:被配置成从光源接收被目标反射的光的多个光敏检测器的第一阵列,上述第一阵列包括:多个不同分区;具有至少一个读出通道并且被配置成从上述多个分区中的每个分区读出数据的读出电路系统;以及被配置成根据来自第一阵列的上述输出确定与上述目标相关联的位置信息的处理器。
175 Underwater sensing system US15045980 2016-02-17 US10088571B2 2018-10-02 Anni Vuorenkoski-Dalgleish; Fraser Dalgleish; Bing Ouyang
Methods for characterizing scattering in a medium of a Light Detection And Ranging (LiDAR) system and systems therefrom are provided. A method includes obtaining off-axis power return characteristics with respect to a first wavelength of light and on-axis power return characteristics for at least the first wavelength of light. The method also includes estimating at least one beam attenuation coefficient (c) based on the off-axis power return characteristics and common volume parameter function for the LiDAR system and an extinction coefficient (α) for the medium based on the on-axis power return characteristics. The method further includes extracting a value for at least one diffuse attenuation coefficient (Kd) for the medium using a beam spread parameter for the LiDAR system (D) and a pre-defined relationship between α, c, D, and Kd.
176 REAL TIME POSITION SENSING OF OBJECTS US15694532 2017-09-01 US20180246189A1 2018-08-30 Gerard Dirk Smits
Embodiments are directed toward measuring a three dimensional range to a target. A transmitter emits light toward the target. An aperture may receive light reflections from the target. The aperture may direct the reflections toward a sensor that comprises rows of pixels that have columns. The sensor is offset a predetermined distance from the transmitter. Anticipated arrival times of the reflections on the sensor are based on the departure times and the predetermined offset distance. A portion of the pixels are sequentially activated based on the anticipated arrival times. The target's three dimensional range measurement is based on the reflections detected by the portion of the pixels.
177 METHOD OF CONTROLLING DISPLAY SCREEN STATUSES, AND APPARATUS US15792753 2017-10-25 US20180233113A1 2018-08-16 Yibao ZHOU
In a method of controlling display screen statuses and an apparatus, the method includes a signal emitter emitting a detection signal, and a first signal receiver and a second signal receiver receiving a reflection signal of the detection signal by an object. Intensity of the reflection signal received by the first signal receiver is compared with a first threshold for obtaining a first magnitude determination result. Intensity of the reflection signal received by the second signal receiver is compared with a second threshold for obtaining a second magnitude determination result. The display screen statuses are controlled based on the first magnitude determination result and the second magnitude determination result.
178 FOG DETECTION METHOD US15889967 2018-02-06 US20180224372A1 2018-08-09 Thomas KLEFFEL; Norbert BAUER
The present disclosure relates to a fog detection method in a vehicle comprising the steps of: providing a first fog sensor with a first transmitter emitting a first encoded optical signal into a vehicle's surroundings, and an associated first receiver for receiving an optical signal reflected from the vehicle's surroundings, and a first analyzing unit for decoding, analyzing and providing a first detection result related to the reception, wherein, for encoding, a code is selected among a plurality of possible codes (A,B,C) by the first transmitter in a code selection, and the code selection is communicated from the first transmitter to the first receiver and/or the analyzing unit, wherein, upon analyzing the signal received from the first receiver by the first analyzing unit, the code selection is used for identifying the first encoded optical signal in the received signal.
179 RADAR TRANSCEIVER US15879775 2018-01-25 US20180210076A1 2018-07-26 Yuji TAKADA
A radar transceiver (100) includes: a transmission-signal forming section (110) that forms an upbeat signal and a downbeat signal from a carrier signal and a chirp signal, using an image rejection circuit; and a received-signal processing section (120) that separates a reflection signal received via a reception antenna (105) into a reflection signal based on the upbeat signal and a reflection signal based on the downbeat signal, using an image rejection circuit.
180 TILTED IMAGE PLANE LIDAR US15906818 2018-02-27 US20180188367A1 2018-07-05 Paul B. Lundquist; Gregory J. Fetzer; Richard Vercillo; Michael Francis Marnon; Thomas Laurence Kraus
Embodiments herein provide for improved range response in lidar systems. In one embodiment, a lidar system includes a laser, and a detector. First optics direct light from the laser on a beam path along a first optical axis of the first optics. Second optics image the light from the beam path onto a second plane that is substantially normal to the first plane. The second optics have a second optical axis that differs from the first optical axis. The first and the second optical axes lie in a same first plane. A first line in the first plane intersects a second line in the second plane at an acute angle. The first line is perpendicular to the first optical axis. A spatial filter configured in or near the second plane filters the light from the second optics onto the detector.
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