92 results about "Light speed" patented technology

The method is based on a core idea of unifying a field theory and an interference field theory, is devoted to exploration and expansion of an artificial field frontier technology, and covers an artificial field plus quality technology, an artificial field interference technology and an artificial field control space-time technology. In the research process, mutual verification of experiments and theories is paid attention to. Theoretically, internal correlation among Planck mass, electron mass, gravitational force, electric field force, magnetic field force and fine structure constants is deeply analyzed, a conclusion that the gravitational force, the electric field force and the magnetic field force are equal when a substance reaches a light velocity is obtained, and a unique quantum effect is presented. In the aspect of experiments, a simple verification method is adopted, and substances are placed in a positive electrode area and a negative electrode area respectively. Along with the enhancement of the electric field intensity and the action time, the substance mass in the positive electrode area is gradually reduced, and the substance mass in the negative electrode area is correspondingly increased. The phenomenon can be explained as that the space where the positive charges are located has divergence characteristics and the space where the negative charges are located has convergence characteristics, so that the masses of the substances in the positive and negative electrode areas are changed alternately.

The invention discloses a laser optical axis and detector automatic alignment method and system. The method comprises the following steps: controlling a three-axis displacement table to scan echo signal coordinates to automatically adjust laser emission power; an echo signal space range is determined through scanning, and initial particles are arranged on an axial plane with small light spots and strong light intensity; after setting particle swarm parameters, iteratively updating an inertia weight and a particle number by using a dynamic PSO particle swarm optimization algorithm, calculating particle positions, obtaining a light intensity value, and determining a close-range optimal relative position; meanwhile, the image distance difference between far and near targets is calculated, and the Z axis of the three-axis displacement table is controlled to complete axial compensation; the echo deviation angle and the radial displacement are calculated according to the motor rotating speed, the target distance and the light velocity, the X axis is controlled to complete radial compensation in combination with the radius of the target surface of the detector, and accurate alignment is achieved. The alignment efficiency and precision are greatly improved, and the defects that a traditional method is slow in positioning and low in precision are overcome.

1. The name of this design product: Laser flow velocity measurement system storage box. 2. Purpose of this design product: used to store low-light speed measurement equipment. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a measurement data calibration method and device, electronic equipment and a program product, and relates to the technical field of communication and radar, and the calibration method comprises the steps: employing a radar to measure a target object to obtain initial data, employing a preset device to measure the radar to obtain attitude angle data, the initial data at least comprises the azimuth angle and the pitch angle of the target object and the reflection echo duration of the radar; obtaining the deployment height of the radar, and calculating the initial height of the target object based on the light velocity, the reflection echo duration, the pitch angle and the deployment height; and constructing a target rotation matrix based on the attitude angle data, calibrating the initial data based on the target rotation matrix to obtain target data, and calibrating the initial height based on the target data to obtain the target height. According to the invention, the technical problem of low precision of radar detection data in the prior art is solved.

1. The name of the product under this design: Slippers (Light Speed ​​6413). 2. Purpose of this design product: to be worn on the feet. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

A system includes a projector that projects a light pattern having a time-domain modulation onto an object, the time-domain modulation including an integer number of adjacent modulation cycles. The system also includes a first time of flight (ToF) camera having a lens and a two-dimensional (2D) pixel array that converts light reflected by the object into an electrical signal. The at least one processor determines three-dimensional (3D) coordinates of a point of the object based at least in part on the electrical signal, the baseline length, the time-domain modulation, and the velocity of light in the air.

The present invention discloses an enhanced LDACS ranging method based on improved super-resolution time delay estimation, which belongs to the field of aviation navigation technology. First, the FL signal transmitted by the LDACS ground station to the airborne station is monitored and recorded in real time, and then the FL signal is coarsely synchronized, and the improved S&C algorithm is used to determine the synchronization sequence position and compensate for the frequency offset to obtain a rough arrival time TOA. Then, the weighted TLS algorithm is used to perform fine synchronization estimation on the signal transmission delay to obtain a more accurate TOA. Finally, the distance between the ground station and the airborne station is calculated based on the TOA multiplied by the speed of light. The present invention adopts an improved super-resolution time delay estimation method, combined with coarse synchronization and fine synchronization strategies, which can achieve more accurate signal transmission delay estimation in a noisy environment, improve the ranging accuracy, adaptability and robustness. Experimental results show that this method significantly improves the accuracy and stability of LDACS ranging.

A device, method, and hybrid computing architecture for a Symbolic Photonic Logic Gate (SPLG) system that performs data processing primarily in the optical domain. The system comprises a photonic substrate, including silicon-photonics, indium phosphide, or similar optically active materials, patterned with optical waveguides and interferometric structures configured to implement logic operations through controlled optical interference, phase modulation, or non-linear optical effects. The SPLG system is configured to execute Boolean and symbolic logic functions without requiring intermediate optical-to-electrical signal conversion. In operation, information is encoded into one or more optical parameters including phase, polarization, wavelength, or amplitude, and processed within a Symbolic Optical Core optimized for linear algebraic operations such as matrix multiplication and vector transformation. The architecture further comprises an electronic control layer configured to initialize, configure, and monitor the photonic logic elements while allowing the majority of computational operations to occur within the optical domain, thereby reducing electrical interconnect congestion and resistive heating relative to fully electronic processors.

A computer-free system and method is disclosed that uses an all-optical image reconstruction method to see through random diffusers at the speed of light. Using deep learning, a set of transmissive layers are trained to all-optically reconstruct images of arbitrary objects that are distorted by random phase diffusers. After the training stage, the resulting diffractive layers are fabricated and form a diffractive optical network that is physically positioned between the unknown object and the image plane to all-optically reconstruct the object pattern through an unknown, new phase diffuser. Unlike digital methods, all-optical diffractive reconstructions do not require power except for the illumination light. This diffractive solution to see through diffusive and / or scattering media can be extended to other wavelengths, and can fuel various applications in biomedical imaging, astronomy, atmospheric sciences, oceanography, security, robotics, autonomous vehicles, among many others.

A system for measuring 3D coordinates of surfaces in the environment is provided. The system includes a body configured to rotate about an axis. A light source is configured to emit a pattern of light, the pattern of light. A two-dimensional array of pixels is coupled to the body and configured to receive a reflection of the pattern of light. A controller is electrically coupled to the light source and the two dimensional array of pixels, the controller configured to a determine a distance to at least one surface in the environment based at least in part on a reflection of the pattern of light from a surface in the environment and a speed of light in air.

A distance information acquisition device includes an irradiation unit configured to irradiate an object with light and a time of flight (ToF) sensor configured to receive light emitted from the irradiation unit and reflected by the object via an optical-system lens and acquires distance information for the object. The distance information acquisition device further includes a distance value acquiring unit configured to acquire a distance value on the basis of a timing at which emission of light is performed by the irradiation unit, a timing at which light is received by the ToF sensor, and the speed of light; a storage unit configured to store a predetermined numerical expression including at least information on an angle of view of the optical-system lens as a parameter, and a correcting arithmetic operation unit configured to calculate the distance information for the object.

The application provides a method for measuring liquid level in a container based on DTOF, a DTOF module and the container. The container is provided with the DTOF module. The method for measuring liquid level in the container comprises the following steps: emitting detection light to the container; receiving reflected light reflected by the detection light; obtaining total flight time according to the emission time of the detection light and the receiving time of the reflected light; calculating target distance according to the total flight time, light speed and the refractive index of the medium through which the detection light is transmitted to the current liquid surface of the container; determining the liquid level in the container according to the target distance and notifying the user. In addition, the application also provides a device for measuring liquid level in a container based on DTOF and the container. The technical scheme of the application effectively solves the problem that the liquid level in the container cannot be accurately measured.

The invention discloses a direct current line distance protection method and device based on fault voltage reconstruction, and belongs to the field of power system relay protection. The method comprises the following steps: acquiring voltage data and current data at a fault moment and a protection device installation position, and carrying out low-pass filtering processing to obtain a measured voltage and a measured current; according to the voltage data, the current data, the preset fault distance and the light velocity, constructing a fault point voltage time sequence from the fault moment to the current moment, and performing low-pass filtering processing to obtain a fault point reconstruction voltage time sequence; according to the measured voltage, the measured current and the fault point reconstruction voltage time sequence, a fault distance equation is obtained in combination with the line model; solving the fault distance equation to obtain a corresponding fault distance calculation value; when the fault distance calculation value converges in a preset time period, comparing the fault distance calculation value with a preset protection range setting value; and judging a fault type. The influence of the line parameter frequency variation characteristic on the distance protection calculation result is eliminated, and the fault distance is accurately calculated.

A program causes a computer to execute a decision step of deciding a larger antenna size between antenna sizes of a transmitting antenna provided within a reverberation chamber in which a test object is arranged and a receiving antenna installed within the reverberation chamber as a target antenna size and a first calculation step of calculating a product of a value obtained by dividing a speed of light by the target antenna size decided in the decision step and a predetermined percentage of 30% or less as an interval between sampling frequencies for detecting a first frequency spectrum that is a frequency spectrum of a first transmission characteristic that is a transmission characteristic between the transmitting antenna and the receiving antenna.

The invention discloses a storage and calculation integrated photon calculation system and method based on a phase change metasurface and holographic light field modulation, and aims to solve the problems that storage and calculation are separated, the dynamic modulation speed is low and the precision is limited in an existing photon calculation framework. The invention provides a hybrid computing architecture which takes a blue-ray disc or a phase change storage wafer as a high-density holographic weight storage medium and is combined with a high-speed spatial light modulator and a photoelectric nonlinear activation circuit. Through an area array parallel reading mechanism, a large-scale weight matrix is read at one time by using beam-expanded coherent light, light velocity matrix multiplication is completed, and interlayer fast switching of the deep neural network is realized in combination with a streaming rotation or light beam scanning technology. According to the invention, the non-volatility and multistage refractive index characteristics of the phase change material are utilized to realize high-density on-chip storage and zero-power-consumption lossless reading of large model weight, and the problems of a video memory wall and an energy consumption wall in large model reasoning are effectively solved.

1. The name of this design product: Turn Signal Light (CG Light Speed). 2. Purpose of this design product: This design product is used for motorcycle lighting. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model relates to the technical field of valve bevel grinding machine main shaft detection, in particular to a coaxiality detection device for valve bevel grinding machine main shaft processing, which comprises a main body, the top of the main body is fixedly connected with a laser centering detection assembly and a rotation adjusting assembly, and the top of the rotation adjusting assembly is fixedly connected with a clamping assembly; according to the utility model, the laser transmitter is used for transmitting the laser beam, the laser beam is irradiated to the photoelectric detector of the receiver, the coaxiality of the main shaft of the valve bevel grinding machine is further detected, the laser test can realize extremely high measurement precision, the error can be controlled at a micron level or even a nano level, and the laser test is based on light velocity propagation. The measurement process is almost instantly completed, a large amount of data can be rapidly collected, the high-speed response capability enables the device to be especially suitable for dynamic measurement and real-time monitoring, laser testing does not need to make contact with a measured object, and damage or interference to the measured object is avoided.

The invention discloses a blade top and blade tip morphology and gap precision measurement method for an aero-engine, and the method is used for obtaining, passing and obtaining an instantaneous gap value. Wherein the time of flight of the laser from the end face of the probe to the to-be-measured target is light velocity; the method has the advantages of overcoming the dynamic fuzzy effect and being high in precision. The invention also provides an aero-engine blade top and blade tip morphology and gap precision measurement device, and the device is used for carrying out the corresponding measurement of the gap of the to-be-measured target and the gap of the engine blade in the engine case. According to the method, the measurement precision and the spatial resolution of gap measurement are greatly improved, so that the blade tip morphology and gap high-precision data of the blade with the complex blade tip configuration under the real working condition are mastered.

The utility model discloses a device with a plurality of dynamic light beam lamps for display, which comprises a circuit board provided with a master control MCU, a master control power supply module, an ADC sampling module, dynamic light lamps, an IC protection module, a power supply input bus, a power supply output bus and a reference voltage module. The ADC sampling module is used for collecting a power supply input bus and sending the collected power supply input bus to the master control MCU, and the master control MCU compares the collected power supply input bus with the reference voltage module and then drives the dynamic light lamp to carry out dynamic lighting; the dynamic light lamp comprises a light bar attached to the surface of a circuit board, a supporting frame arranged around the light bar is arranged on the circuit board, a black display panel is arranged on the surface of the supporting frame, the light bar conducts dynamic lighting according to the flowing direction of current, the higher the voltage or the current is, the higher the flowing lighting speed of dynamic lighting is, and the display effect is good. Therefore, the charging state of the electronic equipment can be dynamically displayed, and a user can quickly know the electric quantity of the electronic equipment in the charging state.

This invention provides a positioning method, device, and electronic device for users on the lunar surface. The positioning method includes: a user device located on the lunar surface transmitting electromagnetic wave signals to a lunar satellite; receiving electromagnetic wave signals reflected back by the satellite and recording the round-trip time t between the user device and the satellite; calculating the distance d between the user device and the satellite based on the round-trip time t, where d = c·t / 2, and c is the speed of light; and calculating the user's coordinates on the lunar surface using the tri-sphere intersection positioning principle after obtaining the distances between at least three satellites and the user device, combined with the coordinates of each satellite. This invention enables precise user positioning in a lunar environment, requires lower costs, simplifies lunar satellite payload configuration, and can meet the needs of future lunar exploration.

The present invention discloses a calibration device for a laser optical sight, which relates to the technical field of optical sights. The device comprises an optical sight body with a cylindrical hollow rod structure, an optical lens group for focusing and adjusting a light beam fixedly connected to an outer wall of one side of the optical sight body, an optical window for observing the alignment of a target and a laser light spot fixedly connected to an outer wall of one end of the optical sight body away from the optical lens group, a protective structure for protecting internal components fixedly connected to the outer wall of the laser emitter, an optical path guiding mechanism provided at the inner bottom end of the protective structure, light intensity feedback mechanisms provided on both sides of the inner wall of the protective structure, and a light speed expansion mechanism provided on the outer wall of one end of the protective structure. By cooperating with a connecting plate and an adapter plate, the optical path guiding mechanism can provide a multi-point adjustment function, which helps to correct the directional deviation of the light beam and ensure that the light beam is transmitted along a predetermined path.

The present application relates to the technical field of optical thickness measurement, in particular to a kind of ice thickness measurement method based on laser technology, comprising the following steps: first and second wave band laser beam coaxial superposition lock initial phase difference generation calibration set, analysis beam table bottom interface reflection transmission and utilize detector to capture waveform, separate time of flight difference and compare double wave band propagation time delay to generate characteristic matrix, extract propagation power attenuation and combine dynamic refractive index to correct light speed to obtain geometric thickness result numerical value.In the present application, by constructing double wave band interface reflection analysis mechanism, the non-uniform beam tracking denoising ability is strengthened, the distortion interference caused by multipath scattering is effectively solved, the inherent wave band delay jitter is separated, and the signal attenuation caused by medium loss is reduced, combined with refractive compensation attenuation, the physical space solving accuracy is corrected, the bubble and inclination optical path error are eliminated, the detection purity is ensured, and the ice layer physical thickness reconstruction stability and monitoring precision are greatly improved.

The invention discloses a backward air laser enhancement method based on a flight focus. Firstly, the pulse width of a flight focus is determined according to the requirement for synchronous transmission of back air laser, and the speed of the flight focus is made to be the back light speed. Then, the required laser pulse chirp amount is calculated according to the target speed, and parameters of a dispersion regulation and control module are set; in an experiment, a laser pulse is modulated into a negative chirp by using a grating pair, and then a flight focus is formed through a dispersion focusing system. Enhanced backward air laser output is achieved by optimizing motion parameters of a flight focus. Dynamic movement of the focus is achieved through chirp regulation and dispersion focusing, the focus of the pump laser moves back to back and is consistent with the transmission direction of the back air laser, and therefore the gain length is remarkably prolonged, output energy is improved, limitation of the traveling wave excitation effect is effectively overcome, and the service life of the laser is prolonged. And a new technical approach is provided for realizing long-distance backward air laser output.

The application discloses a resonant cavity-based optical beat method light speed measuring device and measuring method, and belongs to the light speed measuring field. The measuring device comprises a laser emitter. One side of the laser emitter comprises, in sequence along the light path direction, an acousto-optic device, two plane mirrors, a half-transmitting and half-reflecting mirror and an illuminance detector. The laser emitter generates monochromatic light. The monochromatic light enters the acousto-optic device to obtain two light waves with a frequency difference, and coupling is performed to obtain one beat wave. The beat wave changes direction after passing through the two plane mirrors and enters the half-transmitting and half-reflecting mirror. The half-transmitting and half-reflecting mirror transmits the beat wave, and at the same time, reflects a part of the beat wave reflected by the illuminance detector, so that the beat wave is reflected back and forth between the half-transmitting and half-reflecting mirror and the illuminance detector. The illuminance detector receives the beat wave on a light-sensitive surface thereof while reflecting a part of the beat wave, so as to measure the illuminance value of the beat wave. The measuring device further comprises a frequency meter, and the frequency meter displays the acoustic frequency of the acousto-optic device. The light speed can be measured by using the measuring device.

This invention provides a dynamic clock compensation device and method for a time-transfer receiver, comprising an adaptive amplification unit, a waveform shaping unit, an FPGA-based time-to-digital converter, and a data processing unit. The 1PPS signal generated by the GNSS receiver serves as the START signal, and the 1PPS signal from the external clock serves as the STOP signal. Both signals pass through the adaptive amplification unit and the waveform shaping unit, respectively. The shaped 1PPS signals are then sent to the FPGA-based time-to-digital converter to be converted into digital count values. These count values ​​are then sent to the data processing unit, which calculates the time difference between the two 1PPS signals based on the counting frequency. Finally, the time difference is multiplied by the speed of light to convert it into a distance value, which is then used to compensate for the pseudorange measured by the GNSS receiver.

An apparatus, methods, and a device for delivering a rhythmic light pattern to a surface including a housing, a laser source for delivering light in a controlled direction and rhythm, a port to communicate with a controller, and a base to support the housing. Some embodiments include a speaker. The speaker and laser source may have coordinated direction and rhythm. The speaker may play human speech, music, percussion, or a combination thereof and the speaker volume may be less than 80 decibels. The light may illuminate a surface comprising a ceiling, wall, screen, drape, curtain, partition, floor, door, or glass. The controller may include a mobile phone, computer, mp3 player, or automated metronome. The controller may control light intensity, light speed, audio settings, or a combination thereof. Some embodiments may include a remote control to control light intensity, light speed, audio settings, or a combination thereof.

The utility model discloses a mixed light source time sequence projection system, which comprises a first light source group, a second light source group and an electrochromism device, the directions of light beams emitted by the first light source group and the second light source group are perpendicular to each other, and the wave band ranges of the light beams of the first light source group are different from those of the light beams of the second light source group; and the electrochromism device is arranged on emergent light paths of the first light source group and the second light source group, forms an angle of 45 degrees with the emergent light speed direction of the first light source group and the second light source group, and is used for transmitting a light beam of the first light source group and reflecting a light beam of the second light source group. The beneficial effects of the utility model are that the second light source group is used for light supplement of the light sources, so that the brightness and the color gamut can be increased.

The present application relates to the field of optical technology, particularly to interferometer. The interferometer based on light speed adjustment includes an interferometer system, the interferometer system includes a laser and optical device irradiated by the laser, and includes a light speed path difference fine adjustment system; the light speed path difference fine adjustment system includes a glass tube, a transparent liquid container and a two-way pump; the glass tube has a liquid supply port on the side wall, the liquid supply port is connected to one pump port of the two-way pump, the other pump port of the two-way pump is connected to the transparent liquid container, and the transparent liquid container stores transparent liquid; there is a vertical light path between the laser and at least one optical device, and the glass tube is vertically arranged in the vertical light path.

A system includes a light source configured to emit pulsed laser light, and a photodetection unit including a plurality of photoelectric conversion units arranged in a two-dimensional plane, wherein an emission timing of the light source and a detection timing of the photodetection unit are controlled by a timing control unit, wherein the photodetection unit detects scattered light on the two-dimensional plane, of the pulsed laser light emitted from the light source and entering an object, and wherein change of a refractive index of the object is estimated from change of light speed of the scattered light.

The application discloses a photonic deconvolution acceleration system, which is composed of a laser, a light source modulator, an optical beam splitter, an MZI, a phase shifter and an optical balanced detector to complete the deconvolution operation, replaces the deconvolution operation layer in the Spiking-FlowNet neural network architecture which occupies a large amount of computing power, and can greatly improve the computing speed and overcome the slow problem of the electric-based deconvolution operation. Meanwhile, the array formed by the MZI has the characteristics of strong reconfigurability, and the phase shifter can be used to change the transmission matrix of the MZI array, so that the deconvolution operation process of different channels can be completed. When the photonic deconvolution acceleration system is applied to optical flow estimation, an accelerated hybrid optoelectronic Spiking-FlowNet neural network architecture is designed, which fully utilizes the characteristics of parallelism, low power consumption and light speed calculation of optical calculation, and can complete the optical flow estimation more quickly and energy-efficiently while retaining the original accuracy of the Spiking-FlowNet neural network architecture.