43 results about "Information optics" patented technology

The invention belongs to the technical field of information optics, and relates to a method and device for generating a partially coherent self-repairing light beam based on spectrum modulation, and the method comprises the steps: constructing a cross-spectral density function of the partially coherent light beam on a spectrum plane based on a Schell model correlation function and an amplitude function of the partially coherent light beam on the spectrum plane; constructing a cross-spectral density function of the partially coherent light beams on a source plane based on the cross-spectral density function and the kernel function of the spectrum plane; converting the cross spectral density function of the source plane into an ensemble average function of a partially coherent beam field; based on the cross spectral density function of the source plane and the ensemble average function of the partially coherent light beam field, obtaining a field implementation function of the partially coherent light beam; generating a plurality of random complex fields meeting the Schell model correlation function, and respectively inputting the plurality of random complex fields into the field implementation function to obtain a plurality of output fields; and coding the plurality of output fields to generate a plurality of holograms, and modulating the laser to be modulated based on each hologram to obtain a partially coherent self-repairing beam.

The invention relates to an LED packaging detection method and system, and the method comprises the steps: firstly obtaining a light source image of a to-be-detected LED light source, and then carrying out the feature extraction and analysis of the light source image, thereby obtaining image feature information; meanwhile, electrical testing is carried out on the to-be-detected LED, and electrical characteristic information is obtained; carrying out a thermal shock test and a vibration shock test on the to-be-detected LED package to respectively obtain corresponding thermal characteristic information and mechanical characteristic information; and finally, inputting the image feature information, the optical feature information, the thermal feature information and the mechanical feature information into a package detection model trained by combining a plurality of machine learning classifiers to obtain an LED package quality detection report, and judging the package detection quality grade by the report according to a preset threshold value. The detection accuracy and reliability are improved by comprehensively evaluating the quality of LED packaging in multiple aspects such as optics, electricity, thermal and mechanical properties.

The invention discloses a pure phase hologram coding method based on an unsupervised learning neural network, and belongs to the technical field of information optics, and the method comprises the steps: obtaining and preprocessing an original target image, taking the intensity of the original target image as the amplitude, and constructing a complex amplitude matrix through combining with an initial phase; randomly selecting parameters from the wavelength training table and the propagation distance training table, and propagating the complex amplitude matrix by adopting an angular spectrum diffraction algorithm to generate a complex amplitude hologram; inputting the hologram into a POH-Net deep neural network model, extracting features and mapping the features into a pure phase hologram; and according to the pure phase hologram, reconstructing an image by using reverse angular spectrum propagation, and optimizing network parameters by using an Adam optimizer by taking the loss between the amplitude of the image and the amplitude of the original target as a loss function until convergence. The method supports rapid pure phase hologram generation in complex scenes of multiple wavelengths, multiple distances and the like, and provides effective technical support for practical application of holographic display and a high-performance CGH system.

The present application relates to the field of information optics, more particularly, to a spatial structure vertical focal field generation method and system. The present application provides a spatial structure vertical focal field generation method, according to the constructed phase map of the spatial structure vertical focal field, the incident light beam is modulated into a cylindrical wave light beam at the light beam modulation, and then the cylindrical wave light beam is focused to generate a spatial structure vertical focal field. Wherein, the phase map only needs to be calculated according to the superposition of the column lens phase or the column lens phase and the flash grid phase, and the calculation amount and calculation time are obviously reduced compared with the iterative calculation of the existing method. The present application solves the problems of large calculation amount and long time consumption of the existing method for generating a spatial structure vertical focal field.

A vehicle comprising a state detection device the detects a behavior and peripheral environmental information of the vehicle, an optical device that displays at least a plurality of condensing marks which are a pattern indicating at least a travelling direction of the vehicle on a road surface, and a lamp controller that controls lighting or blinking of the optical device. The lamp controller acquires a detection signal, lights or blinks the optical device based on the detection signal, and combines a plurality of linear partial irradiation images into the plurality of condensing marks. The optical device arranges and displays the plurality of condensing marks side by side on a road where the vehicle enters in the traveling direction, and displays the plurality of condensing marks in at least two different colors that appear to overlap each other to a viewer when the viewer is a first distance from the vehicle.

The invention discloses a multi-layer composite intelligent interaction surface and a touch interaction method, which are applied to the surface of an automotive trim, and the multi-layer composite intelligent interaction surface comprises a base material layer attached to the surface of the automotive trim; the touch control layer is arranged on the base material layer, a gesture recognition sensor is arranged in the touch control layer, and the touch control layer is used for receiving gesture information obtained on the surface of the automotive trim based on a target image; the display layer is arranged on the touch layer and is used for displaying image information; the optical layer is arranged on the display layer and is used for performing dynamic phase compensation on the image information to obtain the target image; and a surface layer disposed on the optical layer and configured as a light-transmitting layer. Thus, a plurality of layers are arranged for compounding, a multifunctional interactive surface is achieved, accurate image display can be carried out while the touch screen is attached to the surface of the automotive trim, and the touch interactive experience is improved.

Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and / or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

The invention belongs to the technical field of information optics, and discloses a polarization mode multiplexing information encryption method and system based on a metasurface. The method comprises the following steps: selecting a first number of linear polarization modes with mutually orthogonal spatial distribution; generating a second number of polarization channels based on the selected second number of incident and emergent polarization state combinations; equally distributing the first number of linear polarization modes to the second number of polarization channels; combining complex amplitude distributions of a plurality of linear polarization modes contained in the polarization channel and incident and emergent polarization states as coding information; mapping target intensity distribution corresponding to the linear polarization mode is used as decoding information; and determining structure parameters and arrangement of the metasurface based on the coding information and the decoding information, and realizing polarization mode multiplexing information encryption by using the metasurface. The transmission capacity and the safety performance of the information encryption optical system can be improved.

An image processing method is configured to generate an image of an object using an imaging system in virtual space. A unique characteristic of the imaging system is associated with an NFT recorded on a blockchain. The image processing method includes acquiring a characteristic of an optical system included in the imaging system and spatial information on the object and the imaging system; and generating the image using information on the object, the characteristic of the optical system, and the spatial information.

The utility model relates to the technical field of automobile accessory processing, and discloses a glass cover plate for vehicle-mounted central control display, the glass cover plate for vehicle-mounted central control display comprises a stamping support, a backlight module and a display unit, the backlight module is arranged at the upper end of the stamping support, the backlight module is used for providing a uniform backlight source, and the display unit is arranged at the lower end of the stamping support. The display unit can clearly display images, the display unit is a core component for displaying the images and is responsible for presenting information, and the optical cement is used for bonding the glass layer and the display unit to prevent air from entering the glass layer to affect touch control and display effects. According to the glass cover plate for the vehicle-mounted central control display, a multi-layer composite film structure is adopted, the visual effect and the screen protection function are remarkably improved, light reflection is effectively reduced through the anti-dazzle film, the sight comfort degree during driving is improved, the display unit is protected against damage caused by long-term ultraviolet irradiation through the ultraviolet blocking film, the wear resistance of a screen is improved through the hardened film, and the service life of the screen is prolonged. The anti-fingerprint coating enables the screen to be easy to clean, and the maintenance frequency is reduced.

Cookware (1) comprising a cookware body (2) and an electronic device (3) with electronic components (13). At least one electronic component (13) is designed as a display device (6) for the optical display of information. The cookware body (2) comprises a base (12), a wall (22), and a receiving volume (32). The cookware body (2) has, at least partially, a translucent inner layer (9) on an inner surface facing the receiving volume (32). The display device (6) causes an optical display of information on the inner layer (9) so that the information is visible from the receiving volume (32).

The present invention relates to the field of optical equipment for myopia prevention and control, and in particular to an optical lens with high-frequency disturbance information. It comprises: a basic face shape area and a high-frequency control area; the center of the basic face shape area coincides with the center of the optical lens, and the high-frequency control area is arranged around the outer peripheral side of the basic face shape area. The high-frequency control area comprises a plurality of high-frequency lens units, and the plurality of high-frequency lens units are arranged closely adjacent to each other. The face shape of each high-frequency lens unit has a face shape structure with at least two height fluctuation cycles in at least one direction of the unit radial direction or the unit tangential direction. The effect of the microstructure face shape in the high-frequency lens unit of the present invention on the retina is mainly high-frequency disturbance, thereby effectively reducing the side effects of the low-frequency disturbance generated by the traditional spherical lens on the visual effect, so as to ensure the visual quality. At the same time, the high-frequency lens unit has at least two height fluctuation cycles in at least one direction; thereby providing the retina with continuously changing dynamic stimulation to slow down the adaptation speed of the retina.

Disclosed is a method and a device for rapidly measuring the transmission matrix of an ultra-long optical fiber, belonging to the field of information optics. The solution couples the spatial mode into ultra-long few-mode / multi-mode optical fiber for transmission. By obtaining the common path reference light at the output end of the ultra-long few-mode / multi-mode optical fiber and interfering with the signal light at the output end, the complex amplitude distribution of the signal light field output by the optical fiber is reconstructed, weight coefficients of different modes are obtained by performing overlapping integral on the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes. The transmission matrix of the ultra-long few-mode / multi-mode optical fiber can be obtained by rapidly switching the mode incident into the ultra-long few-mode / multi-mode optical fiber and sequentially calculating the weight coefficients of the different modes at the output end.

This invention provides an augmented reality system adapted to low-light night vision goggles. The system includes: low-light night vision goggles and an augmented reality device disposed behind the low-light night vision goggles. The augmented reality device includes: a camera module for acquiring scene information; a computing module for generating augmented information based on the scene information; a display module for displaying the augmented information; and an optical module for combining a first ray of light from the objective lens of the low-light night vision goggles (which generates the image formed by the goggles) and a second ray of light generated from displaying the augmented information, converging and presenting them in the human eye. Using this invention, visual perception capabilities under low-light night vision goggles can be improved.

The invention provides an image processing method, device and system and a storage medium, the image processing method is applied to the image processing system, and the image processing system comprises a visual imaging module and a data processing module; the visual imaging module is connected with the data processing module; the visual imaging module comprises a zoom lens group, a micro-nano optical device and an image sensor which are sequentially adjacent in the optical axis direction; the image processing method comprises the following steps: determining an image of a target object through a visual imaging module; the image of the target object is obtained by transmitting light rays emitted by the target object or reflected light rays to the image sensor after the light rays are acted by the zoom lens group and the micro-nano optical device; performing data analysis on the image of the target object through a data processing module to obtain optical information of light of the target object; the optical information comprises at least two of the light intensity, the spectrum, the polarization and the direction of the light, so that the convenience of acquiring the multi-dimensional optical information of the light of the target object by the image processing system is improved.

In some implementations, a metrology optimization system may obtain three-dimensional (3D) model information associated with an object. The metrology optimization system may obtain optical sensor information associated with a metrology system that is to measure the object. The metrology optimization system may determine, based on the 3D model information and the optical sensor information, an initial configuration for the metrology system. The metrology optimization system may determine, based on the 3D model information, the optical sensor information, and the initial configuration, an optimal configuration for the metrology system. The metrology optimization system may provide the optimal configuration for the metrology system.

The application discloses a kind of adjustable pulse waveform solid laser control method, specifically relates to laser control technical field, by obtaining the output power information of solid laser, external environment information, optical element aging information and control response information, construct solid laser state monitoring model, the actual running state of solid laser is evaluated, potential fault hidden danger existing in solid laser is effectively identified, when potential fault hidden danger existing in solid laser is combined with the temperature rising rate of thermal influence area, uses fuzzy PID control algorithm to carry out dynamic control to each parameter of pulse, effectively reduce the frequency of pulse regulation times caused by unstable laser running state, simultaneously consider the temperature rising rate of thermal influence area when adjusting pulse parameter, effectively control heat energy accumulation, prevent excessive expansion of thermal influence area, reduce the processing defects caused by thermal damage, reduce the rate of defective products.

The utility model relates to the technical field of touch screen detection, in particular to a touch screen flatness efficient detection device which comprises a main body, the top of the main body is fixedly connected with a longitudinal moving assembly, and the side face of the longitudinal moving assembly is fixedly connected with a transverse moving assembly. The laser beam emitted by the laser transceiver is irradiated on the surface of the touch screen, the reflected light is received by the internal receiver, the height information of the surface of the touch screen is calculated by measuring the angle change between the laser beam and the receiver, and the optical measurement technology has the characteristic of high precision. The device can accurately measure the tiny height change of the surface of the touch screen, guarantees the reliability of a detection result, avoids the contact with the surface of the touch screen through a non-contact measurement mode, does not cause any damage to the touch screen, carries out the position adjustment of a measurement unit through a longitudinal moving assembly and a transverse moving assembly, and improves the measurement precision. The two moving modes both adopt a lead screw transmission mode, so that the scanning path of the measuring unit on the surface of the touch screen can be accurately controlled.

The invention relates to a rapid hyperspectral light field Raman body imaging system and method, and the system employs wide-field imaging, combines a multi-dimensional information coding unit with a CCD detector, carries out the integrated coding of the panoramic depth information of a sample, and employs an adjustable spectrum filtering sub-module to achieve the integrated coding of the panoramic depth information of the sample. And high-quality acquisition of three-dimensional space and Raman hyperspectral information under the wavelength required by the sample can be realized only by single exposure. According to the imaging method, a light field Raman body imaging algorithm is provided, data priori of different stages in the light field imaging process is constructed respectively, and the training processes of light field denoising, a supramolecular network and a three-dimensional reconstruction sub-network are guided in sequence, so that rapid and high-fidelity isotropic resolution three-dimensional reconstruction of a low-signal-to-noise-ratio light field image is realized. According to the method, a multi-dimensional image rapid and high-resolution three-dimensional visualization processing technology system integrating traditional optics, information optics and computational optics is constructed, the imaging efficiency and precision are remarkably improved, and efficient three-dimensional information capture and high-quality reconstruction are achieved.

Technology described herein includes a method that includes providing, by an optical light source, a light beam configured to traverse an optical path through a fluid comprising the biological sample in a container. A length of the optical path through the fluid is between 3.3 mm to 5.5 mm, and a center of the light beam is at a height less than 1.6 mm from a bottom interior surface of the container, and a volume of the fluid is less than 120 μL. An optical detector receives optical information after the light beam traverses the optical path. An output of the optical detector is associated with at least one parameter representing the one or more characteristics of the biological sample.

The application discloses a method and device for acquiring optical information of a display screen and a nonvolatile storage medium. The method comprises the following steps: acquiring a position calibration image of the display screen and optical information extraction image of the display screen, wherein the optical information extraction image is used for extracting optical information of the display screen, the position calibration image is used for calibrating the position of a lamp point in the optical information extraction image, or the position calibration image is used for establishing a corresponding relationship between the position of the lamp point in the display screen and the position of the lamp point in the optical information extraction image; and acquiring the optical information of the display screen according to the position calibration image and the optical information extraction image, wherein the optical information comprises at least one of the following: brightness information, chrominance information and luminous flux information. The application solves the technical problem that the optical information extraction is inaccurate due to the inaccurate positioning of the lamp point caused by the influence of the resolution of the display screen, camera error or other factors.

The invention relates to an automobile blind area lane-changing warning lamp module structure, which is characterized in that a warning lamp module is arranged at a position where a lane-changing warning lamp pattern is arranged on the back surface of a rearview mirror lens, and comprises a circuit board which is configured as a man-machine interaction interface and is used for receiving an external electric signal and providing visual state information; the optical module comprises at least one group of optical units and is used for displaying a corresponding warning lamp pattern in the target observation area; the shell is made of a non-transparent material, is arranged on the outer surface of the warning lamp module and is used for realizing sealing and preventing light leakage; the front cover and the shell form a cavity structure and are used for containing the optical module and the circuit board, a light outlet is formed in the front cover, and the light outlet is made of semitransparent or transparent materials and is used for sealing the cavity structure. The car blind area lane changing warning lamp module structure is small in size, and the uniformity of warning lamp patterns in a target area range is good.

The present invention discloses a method and device for quickly measuring an ultra-long-distance optical fiber transmission matrix, which belongs to the field of information optics. The solution couples a spatial mode into an ultra-long-distance few-mode / multi-mode optical fiber for transmission, obtains a common-path reference light at the output end of the ultra-long-distance few-mode / multi-mode optical fiber and interferes with the signal light at the output end, reconstructs the complex amplitude distribution of the signal light field output by the optical fiber, calculates the overlap integral of the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes to obtain the weight coefficients of different modes, quickly switches the mode incident on the ultra-long-distance few-mode / multi-mode optical fiber and calculates the weight coefficients of different modes at the output end in turn to obtain the transmission matrix of the ultra-long-distance few-mode / multi-mode optical fiber. The technical solution of the present invention breaks the coherence limitation of the measurement of the few-mode / multi-mode optical fiber transmission matrix, and provides a feasible solution for the measurement of the few-mode / multi-mode optical fiber transmission matrix over ultra-long distances (e.g., hundreds of kilometers).

The invention provides a reconfigurable generative all-optical chip, which comprises an optical encoder module, an optical hidden space module and an optical encoder module, and is characterized in that the optical encoder module is used for converting a high-dimensional image light field into a low-dimensional feature light field; the optical hidden space module is used for receiving the low-dimensional feature light field and performing optical processing on the low-dimensional feature light field in an optical hidden space to obtain optical hidden space features; the optical implicit space generator module is used for generating and outputting visual semantic information according to the optical implicit space features; the optical encoder module and the optical encoder module both adopt pluggable assembly structures and can be connected with the optical hidden space module in a pluggable manner and keep an optical path alignment relationship, and flexible switching of different semantic vision generation tasks is realized by replacing different optical encoder modules and optical encoder modules. According to the invention, the optical encoder module and the optical encoder module can be replaced in a pluggable manner to realize flexible task switching, so that multi-task reasoning and rapid upgrading are realized under the condition that the same optical hidden space is shared.

The invention discloses a cloud-based information optical experiment system capable of realizing remote interaction, and relates to the technical field of remote experiments. The system adopts a three-stage architecture of an instrument end, a cloud end and a client end, wherein the instrument end comprises a light source, a multi-stage optical device, a camera, a two-dimensional displacement console and a microcomputer which are arranged along a light path, and is used for executing an information optical experiment and collecting data; the cloud serves as a relay and is responsible for bidirectional forwarding and session management of experimental data and control instructions; and the client provides a remote interaction interface for a user. A user adjusts experimental parameters through the client, controls the displacement and state of the optical device, and issues an instruction to the instrument end for execution through the cloud; experimental images collected by the camera are coded and then distributed to the client side through the cloud side, and low-delay video feedback is achieved. The system is suitable for remotely carrying out information optical experiments such as spatial filtering, Fourier transform and scalar diffraction, effectively overcomes the limitation of a traditional information optical experiment on a site and time, realizes remote, interactive and resource sharing of a real optical experiment, and can remarkably improve the equipment utilization rate and the teaching and scientific research efficiency.

Disclosed is a method and a device for rapidly measuring the transmission matrix of an ultra-long optical fiber, belonging to the field of information optics. The solution couples the spatial mode into ultra-long few-mode / multi-mode optical fiber for transmission. By obtaining the common path reference light at the output end of the ultra-long few-mode / multi-mode optical fiber and interfering with the signal light at the output end, the complex amplitude distribution of the signal light field output by the optical fiber is reconstructed, weight coefficients of different modes are obtained by performing overlapping integral on the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes. The transmission matrix of the ultra-long few-mode / multi-mode optical fiber can be obtained by rapidly switching the mode incident into the ultra-long few-mode / multi-mode optical fiber and sequentially calculating the weight coefficients of the different modes at the output end.

An electronic device such as a head-mounted device may include a renderer for generating virtual content, displays that generate light containing the virtual content, and optics that direct the light to eye boxes. The optics may include fixed lenses and optionally removable prescription lenses. The device may include gaze tracking sensors that measure eye position information at the eye boxes and that measure binocular gaze information between the eye boxes. The renderer may generate the virtual content according to a rendering configuration. The rendering configuration may be generated based on the eye position information, the binocular gaze information, hardware constraints of the optics, hardware constraints of the display, and / or information about the virtual content to be displayed. The renderer may render the virtual content with a peak resolution that exceeds a collective upper resolution limit of the optics and the display. The rendered virtual content may include foveated virtual content.

A measuring apparatus includes an optical system having a central area including the optical axis and a peripheral area distant from the central area, an image sensor including a plurality of pixels configured to receive an image of an object formed by the optical system, and a processor configured to acquire distance information on the object from a parallax image acquired by the image sensor based on light beams from two different pupil positions in the optical system. A focal length of the optical system in the peripheral area is shorter than a focal length of the optical system in the central area. A parallax direction of the parallax image is a direction including a component in a direction orthogonal to an installation surface of the measuring apparatus.

The invention relates to the technical field of information optics, in particular to a near-infrared two-zone line scanning optical tomography microscopic imaging system and method based on a virtual digital slit, and the system comprises a near-infrared two-zone line scanning optical tomography microscopic imaging module. And the virtual digital slit image reconstruction module is used for reconstructing an image acquired by the near-infrared two-zone line scanning optical tomography microscopic imaging module. A digital micromirror device and a digital line array are introduced, exciting light is modulated by means of the high-speed signal modulation capacity of a DMD, the digital line array is used for replacing a physical slit in a traditional line scanning system, generation and rapid scanning of a parallel line array exciting light field are achieved, and the flexibility and imaging speed of the system are greatly improved; a virtual digital slit image reconstruction module is introduced to filter background noise, so that optical slicing is realized; a near-infrared two-area window is introduced into a line scanning optical tomography microscopic imaging system, so that the imaging depth, the resolution ratio and the signal-to-noise ratio of the system are further improved.

Ophthalmic Surgery Visualization System (10) with a device (16) for stereoscopic visualization of an object area with an operating site (12) on a patient eye (14), which includes an image acquisition device (33) for acquiring object area image data containing image data for at least one patient eye registration structure (76), with a computing unit (54), and with a biometric data interface (70) for providing patient eye biometric data, which defines a patient eye model (102) with a model registration structure (76') corresponding to the patient eye registration structure (76) and a model coordinate system (77'), characterized by the fact that The computer unit (54) contains a computer program with a program routine for registering the patient eye model (102) to the patient eye (14) using the patient eye registration structure (76) and the model registration structure (76'), in which the object area image data acquired by means of the image acquisition device (33) are linked with optical imaging parameters of the image acquisition device (33) in order to provide a patient eye coordinate system (77) fixed to the patient eye (14) in the form of data, which is referenced to the model coordinate system (77'), wherein a stereoscopic display device (48) is provided for displaying image information in a stereoscopic visual impression, wherein the computer program has a program routine for calculating stereoscopic display information in the patient eye coordinate system (77),wherein the program routine serves to provide display information data which can be displayed at the display device (48) as a spatially extended structure (122) superimposed on the visualized object area, wherein the device (16) for stereoscopic visualization of an object area includes an adjustable imaging optic with an autofocus system (130) for automatically focusing on a structure (76) of the patient's eye or for automatically focusing on a point (140') in the patient's eye (14) corresponding to a structure (76') of the patient's eye model (102) or to a point (140') in the patient's eye (14) corresponding to a point of interest (140) of the patient's eye model (102), which has a focusing state interface (138) for providing z-focusing and / or xy-scaling of the imaging optics as well as xy-positioning of the device (16) for acquiring stereoscopic image data in a plane perpendicular to an optical axis (21) of a main objective (20) of the imaging optics, wherein the computer program receives information from the group z-focusing, xy-scaling of the imaging optics, xy-positioning from the focusing state interface (138) and receives patient eye biometric data from the biometric data interface and takes this into account for calculating the display information data.