111 results about "Optical control" patented technology

Provided is an optical control element capable of arranging an input portion and an output portion of an optical waveguide on the same side of a substrate in which the optical waveguide is formed, and capable of reducing differences in the configuration of each branch waveguide while minimizing optical path differences between branch waveguides. The optical control element has a substrate (1) having an electro-optic effect, an optical waveguide (2) formed in the substrate, and a control electrode that controls an optical wave propagating in the optical waveguide, characterized in that an input portion (incident light (L1)) and an output portion (emitted light (L2)) of the optical waveguide are formed on the same side of the substrate, the optical waveguide has at least one Mach-Zehnder type optical waveguide portion (MZ) having two branch waveguides (21, 22) branched from one optical waveguide and recombining the two branch waveguides to form one optical waveguide, and the branch waveguides have an even number of return portions (A1, A2).

The invention discloses an energy-saving dimming assembly and a manufacturing method, and relates to the technical field of building energy-saving facilities, and the energy-saving dimming assembly is sequentially provided with a first transparent layer, a second transparent layer, a third transparent layer and a fourth transparent layer from outside to inside, the temperature response functional layer comprises a mixture of at least two thermochromic high polymer materials and is configured to realize adjustment of light transmittance in a preset temperature interval; the second transparent layer is used for supporting the temperature response functional layer; and an optical regulation and control layer configured to have a low-radiation characteristic in a long-wave infrared region. According to the invention, the transmittance of visible light and infrared light of the window can be changed along with the change of temperature at 20-38 DEG C. Meanwhile, programmed adjustment of the corresponding temperature response interval can be achieved through temperature change; and the gradual change of the transmittance of visible light and infrared light can be regulated and controlled in a programmed manner through the temperature change, so that the effects of regulating the indoor brightness and temperature and protecting the visual comfort of a user are realized, and the aim of saving energy is fulfilled.

The present application relates to the technical field of electro-optical control. The present application provides an electro-optical pod-based method for correcting an IMU installation misalignment angle in a geographic tracking mode. In embodiments of the present disclosure, online calibration is performed by continuously correcting a target geographic tracking result by means of image-derived line-of-sight angle calculation, thereby enabling an electro-optical pod to achieve more accurate target positioning and geographic tracking during a calibration flight; moreover, storing the calibrated installation misalignment angle ensures target positioning and geographic tracking effects in subsequent flights, thereby significantly improving the execution efficiency of flight missions.

The invention discloses a near-field radiant heat rectifier based on a high-frequency photoelectric effect, and belongs to the technical field of radiant heat transport regulation and control. The invention aims to solve the problems that an existing magneto-photo-thermal rectification scheme depends on a strong magnetic field, the size is large, integration is difficult, and electromagnetic interference exists. The invention provides a near-field radiant heat rectifier based on a high-frequency photoelectric effect. The near-field radiant heat rectifier comprises a heat emission layer, an emission end time modulation layer, a receiving end time modulation layer, a heat receiving layer and a nanometer displacement platform. A nanoscale vacuum gap is kept between the photoelectric modulation layers of the transmitting end and the receiving end through a nanometer displacement platform, and dielectric constants of the photoelectric modulation layers are subjected to high-frequency periodic modulation through a dual-mode integrated laser. The modulation phase difference is utilized to break the system time reversal symmetry, and an artificially synthesized magnetic field is introduced to realize near-field radiation heat rectification. The device has the advantages of compact structure, full light control, no magnetic interference and the like, and is suitable for being applied to practical engineering scenes of microelectronic heat dissipation, waste heat recovery, thermal logic circuits and the like.

The invention relates to the technical field of precision optical control, in particular to a sum-difference mode cooperative control double-actuator visual axis stable imaging method and system, and the method comprises the steps: calculating a sum mode variable and a difference mode variable between the angular velocity information of a first actuator and the angular velocity information of a second actuator; performing inverse mode transformation on the two mode variables to obtain independent control commands for respectively controlling the first actuator and the second actuator; the two independent control commands are correspondingly input into the first actuator and the second actuator after being processed through a control algorithm based on data driving. The ultra-high precision of the two actuators is effectively combined, stable control over the optical axis of the optical imaging system is achieved, and the imaging definition and stability of the optical imaging system in the disturbance environment are remarkably improved.

The application provides a demodulation system and method of a strong-weak fiber grating hybrid network, which comprises: an upper computer for generating an optical control signal, a modulation control signal and a signal collection signal; an optical signal generation unit for outputting a sweep continuous light signal in response to the optical control signal; a fiber splitter for dividing the sweep continuous light signal into a first continuous light signal and a second continuous light signal; a pulse modulation unit for modulating the first continuous light signal to obtain a pulse light signal in response to the modulation control signal; a weak fiber grating sensing module for generating a first electric signal based on the pulse light signal; a strong fiber grating sensing module for generating a second electric signal based on the second continuous light signal; and the upper computer for positioning and demodulating the first electric signal and the second electric signal in response to the signal collection signal. The application realizes the demodulation of the strong-weak fiber grating hybrid network by a single system, and can simultaneously perform a large-capacity, long-distance sensing task and a single-point sensing task.

An optical network includes a plurality of variable ratio coupler (VRC) devices. Each VRC device includes an input, a main output, and a branch output, a VRC, an actuator operable to control the VRC to vary a split ratio of the VRC, a wavelength division multiplex (WDM) filter positioned within the branch output and includes a common port, a transmit port and a reflect port. The WDM filter is operable to pass a control wavelength at the transmit port and a filtered optical signal at the reflect port, and a controller operable to receive an optical control signal from the WDM filter and control the actuator to manipulate the VRC to a desired split ratio. The input, the main output and the branch output of the plurality of VRC devices are coupled such that the plurality of VRC devices is arranged in a branching network having a plurality of levels.

A flexible display module, a vehicle-mounted curved surface display module, and a vehicle are provided. The flexible display module (10) comprises: a support layer (11); a flexible display panel (12) on the support layer (11); and an optical control layer (13), on the side of the flexible display panel (12) away from the support layer (11), and comprises first and second light control layers (131) and (132) on one side of the first light control layer (131), wherein the dimming rate of the first light control layer (131) is greater than that of the second light control layer (132). The flexible display module (10) uses the first and second light control layers (131) and (132) to realize visual angle brightness control of different regions, can be applied to vehicle-mounted display to solve the problem whereby curved surface display tends to form a projection on a windshield.

The application discloses a fast reflecting mirror control system and method based on an FPGA platform and belongs to the technical field of optical control. The system comprises a host computer, external ADC and DAC, a fast reflecting mirror driving module, a fast reflecting mirror assembly and an FPGA. The FPGA is integrated with a fast feedback position processing assembly and a host computer communication, ADC data acquisition and preprocessing and DAC control and instruction output module. The communication module is bidirectionally interacted with the host computer. The ADC data acquisition and preprocessing module receives a position signal output by the external ADC and pre-processes the position signal. The fast feedback position processing assembly combines a control instruction with an actual position, generates a digital control instruction through path generation, interpolation operation and PID control, and the DAC control and instruction output module converts the instruction into an analog signal through the external DAC, drives the fast reflecting mirror assembly to move. The application solves the problems of high signal transfer delay and poor multi-task coordination in the traditional signal transfer through a highly integrated hardware control architecture in the FPGA, and realizes high-precision, low-delay response and reliable control of the fast reflecting mirror.

The present disclosure relates to the technical field of display, and provides a display panel and a display apparatus aiming to improve the display quality of top-emitting devices. The display panel comprises: a substrate comprising a plurality of pixel regions; a plurality of monochromatic light-emitting devices located on a side of the substrate, wherein each pixel region comprises a plurality of monochromatic light-emitting devices corresponding to different colors; and an optical control layer, located on a side of the monochromatic light-emitting devices away from the substrate and / or adjacent to the substrate, the optical control layer comprising a plurality of optical control regions, and an orthographic projection of each optical control region on the substrate overlapping with an orthographic projection of one monochromatic light-emitting device on the substrate, wherein optical control regions overlapping with monochromatic light-emitting devices corresponding to different colors have different thicknesses.

The utility model relates to a laser cleaning system which comprises an operation room, a workbench, a laser generating system, an intelligent identification system and a controller, the workbench, the laser generating system, the intelligent identification system and the controller are arranged in the operation room, a workpiece to be cleaned is placed on the workbench, the laser generating system is used for enabling laser to act on the workpiece to be cleaned, and the intelligent identification system comprises a scanning assembly. The scanning assembly is used for planning a cleaning path, cleaning path information of the scanning assembly is sent to the controller, and the controller controls the optical control assembly to adjust the cleaning position of the laser acting on the to-be-cleaned workpiece. The workpiece to be cleaned is scanned through the intelligent recognition system, a proper cleaning path is planned for the workpiece to be cleaned, the optical control assembly emits the laser beam to the surface of the workpiece to be cleaned according to the cleaning path for laser cleaning, physical contact with the surface of the workpiece to be cleaned is avoided through laser cleaning, mechanical damage is avoided, and the service life of the workpiece to be cleaned is prolonged. And the cleaning area of the to-be-cleaned workpiece can be accurately controlled through the proper cleaning path.

The present application relates to the technical field of laser optical control, and particularly relates to an electromagnetic mechanical shutter device, a light blocking piece of the device can reciprocate along a straight line, so that the light blocking piece is switched between a light beam passing position and a light beam blocking position, thereby realizing flexible control of the on-off of a laser beam. Meanwhile, by setting a diffuse reflection heat dissipation unit and setting a reflecting surface on the light blocking piece, when the light blocking piece is in the light beam blocking position, the incident laser beam can be reflected to the diffuse reflection heat dissipation unit, the laser energy is received and absorbed by the diffuse reflection heat dissipation unit, and the heat is dissipated in time, so that the problem of heat accumulation is effectively relieved, and the service life of the device is significantly prolonged. The present application also relates to a high-power laser, which comprises the electromagnetic mechanical shutter device.

The invention discloses a manufacturing process and equipment for a light high-brightness plastic product, and the process comprises the following steps: firstly, carrying out micro-foaming injection molding by utilizing thermoplastic resin containing supercritical fluid or a chemical foaming agent, and controlling the size and distribution of internal foam holes of a base material by regulating and controlling foaming process parameters, so as to adjust the light transmittance and haze of the base material; performing flame or plasma on-line modification treatment on the surface of the base material by utilizing an automatic surface treatment device in a mold opening or station switching process; finally, a polyurethane reaction system is injected into the surface of the modified base material through a reaction forming technology to form a polyurethane functional layer, and different optical functional areas can be achieved through partition injection or thickness control. Correlation type forming equipment matched with the technology integrates the functions of foaming injection molding, online interface modification and polyurethane reaction forming, in-mold integrated manufacturing of a lightweight foaming base material and a highlight functional surface layer is achieved, and the surface quality, the interface bonding performance and the optical regulation and control capacity of a product can be effectively improved.

The invention discloses an optical transparent adhesive tape with an electric tuning refractive index and a preparation method thereof. The optical transparent adhesive tape comprises a polymer matrix; the core-shell structure liquid crystal microcapsule is dispersed in the polymer matrix, the core of the core-shell structure liquid crystal microcapsule contains nematic phase liquid crystals and polymerizable monomers, the shell of the core-shell structure liquid crystal microcapsule is a cross-linked polymer layer, and an ion trapping agent is distributed in the shell; the transparent electrodes are arranged on the two sides of the polymer matrix; wherein the orientation of liquid crystal molecules in the inner core is changed by applying voltage to the transparent electrode, so that the dynamic regulation and control of the overall refractive index of the electrically tuned refractive index optical transparent adhesive tape are realized. According to the electrically tuned refractive index optical transparent adhesive tape provided by the invention, the OCA is successfully upgraded from a passive bonding material to an active optical regulation and control element, low-voltage, rapid and stable regulation and control of the refractive index are realized while excellent bonding performance and optical performance are maintained, and a brand new technical path is opened up for improving the display quality and realizing a novel display function.

A light fixture that utilize multiple sheets of MCPCB for reduced costs, weight, and thermal, mechanical, and / or optical controls. In other embodiments, a heat sink may be formed by extruding a block of material to form a heat sink that utilizes a venturi and chimney effect, which may include attached MCPCB. Specific embodiments may utilize a plurality of MCPCB sheets or other pliable materials, which may be mirrored over a central axis or an extruded heat sink to create an open upper surface with a chimney effect

The application discloses a kind of cableless optical control phased array front-end systems integrated on chip, including satellite cabin outside optical control array antenna front-end chip and satellite cabin inside beam control chip.In launch mode, satellite cabin inside beam control chip processes microwave signal, and first N-way spatial radio frequency light signal is emitted, and first N-way spatial radio frequency light signal is transmitted to the satellite cabin outside optical control array antenna front-end chip by spatial light, and satellite cabin outside optical control array antenna front-end chip processes first N-way spatial radio frequency light signal and emits;In receiving mode, satellite cabin outside optical control array antenna front-end chip processes microwave signal and emits second N-way spatial radio frequency light signal, and second N-way spatial radio frequency light signal is transmitted to the satellite cabin inside beam control chip by spatial light, and satellite cabin inside beam control chip processes second N-way spatial radio frequency light signal and outputs radio frequency combined wave signal.The application can improve the performance of system, reduce size and reduce cost.

The invention provides a glare identification and suppression method and system, and belongs to the field of optical control. The method comprises the following steps: constructing a polarization characteristic database based on different light sources; collecting a view field image and the light intensity and the polarization state of ambient light in a view field range; setting a light intensity threshold value, judging the light intensity of the collected current ambient light, preprocessing the light intensity and polarization state data when the light intensity is greater than the light intensity threshold value, and carrying out glare feature recognition, space-polarization correlation mapping, binary glare distribution matrix generation and modulation instruction generation on the ambient light based on the polarization feature database; converting the glare distribution matrix into a corresponding analog voltage matrix; and converting the modulation instruction into a corresponding driving voltage, applying the corresponding driving voltage to a corresponding pixel unit in the analog voltage matrix, realizing selective polarization state modulation of glare pixel points in the incident light, and outputting the emergent light of which the glare is inhibited. According to the invention, the glare suppression effect is improved.

The invention relates to a system and method for improving the conversion efficiency of a solar cell by using circularly polarized light, and belongs to the technical field of solar cell light energy conversion. Conventional non-polarized light is converted into circularly polarized light, and the spin direction of excited carriers in the solar cell is regulated and controlled to be matched with the spin selectivity of the cell, so that the transport efficiency of the carriers and the light energy conversion efficiency are improved. Experiments show that in a chiral dye-sensitized solar cell, an organic photovoltaic cell and a perovskite solar cell, the photoelectric conversion efficiency can be remarkably improved by adopting circular polarized light irradiation. The invention provides a novel optical regulation and control strategy for efficient light energy utilization of the solar cell.

The application relates to a vehicle-mounted display module, comprising a display panel and a polaroid located at the light-emitting side of the display panel, wherein the side of the polaroid far from the display panel is provided with an optical control structure, and the optical control structure comprises: a quarter-wave plate for converting linearly polarized light emitted by the polaroid into circularly polarized light; and a light-adjusting layer arranged at the light-emitting side of the quarter-wave plate and used for controlling the emission angle of the linearly polarized light. The application also relates to a vehicle-mounted display device.

An industrial camera (20) comprises a printed circuit board (28) connected to an electrical connector (30). The printed circuit board (28) comprises at least a first circuit portion (28a-28e) configured to accommodate electronic optical control components, dedicated to controlling a deformable optical element (32), and at least a second circuit portion (28f-28i) configured to accommodate electronic interface components, which implement a serial interface. Some pins of the electrical connector (30) are connected to both the at least one first circuit portion and the at least one second circuit portion, so as to alternatively realize both control outputs of the deformable optical element (32) and control outputs of the serial interface.

This application discloses an optical sensing structure and an optical detector, belonging to the field of integrated optical sensing technology. It aims to achieve on-chip integrated construction and efficient electro-optical control of high-order singular surfaces to improve the signal response intensity and weak signal detection limit of optical sensing. The optical sensing structure includes an optical waveguide, multiple micro-ring resonators, a circular aperture array, and multiple sets of metal electrodes. The optical waveguide and multiple micro-ring resonators are formed by etching optically functional thin films with electro-optic effects. The multiple micro-ring resonators are arranged sequentially along the extension direction of the optical waveguide and are evanescently coupled to it. The circular aperture array is disposed at the end of the optical waveguide to reflect the transmitted optical signal, forming a closed optical loop. Multiple sets of metal electrodes are respectively arranged in pairs on both sides of the optical waveguide and segmented along the waveguide, corresponding to the optical waveguide regions between two adjacent micro-ring resonators and between the micro-ring resonators and the circular aperture array away from the input end of the optical waveguide.

The invention discloses a self-starter for a frequency modulation broadcasting standby transmitter and a control method of the self-starter. The self-starter comprises a frequency modulation signal receiving module, an acousto-optic conversion module, a light-operated module, a delay processor and an alternating current contactor; the frequency modulation signal receiving module receives a main transmitter signal through an antenna, the main transmitter signal is converted into an optical signal through the acousto-optic conversion module, the delay processor is triggered after the optical signal is detected by the optical control module, and the alternating current contactor is driven to be connected with a standby transmitter power supply after delay control. The control method comprises the steps of signal receiving and processing, photoelectric conversion, delay judgment and power supply starting, full-automatic and quick starting of the standby transmitter when the signal of the main transmitter is interrupted is achieved, and manual testing, starting, stopping and adjusting can be achieved. The method has the characteristics of quick response, strong anti-interference and flexible operation, and can obviously shorten the broadcast stop time and improve the system reliability.

The invention provides a multi-time-scale laser power control system and method, and relates to the field of laser technology and optical control. The system comprises a laser, a main controller, a light modulation module, a beam splitter and a photoelectric detector, the main controller obtains a control signal of a first time scale and a control signal of a second time scale according to a laser power signal detected by the photoelectric detector, and sends the control signal of the first time scale to the laser; the laser performs corresponding power fluctuation compensation based on the control signal of the first time scale; and sending the control signal of the second time scale to an optical modulation module, so that the optical modulation module performs corresponding power fluctuation compensation based on the control signal of the second time scale. Through multi-time-scale grading compensation of the light modulation module and the laser, broadband stability of laser output power from direct current to high frequency is realized, thermal disturbance of the laser is reduced, performance limitation of a single adjusting mechanism is broken through, and long-term stability and universality of the system are improved.

The present application relates to an optical encryption device, an optical decryption device and an optical encryption communication system, the encryption device comprising: a control unit for generating a control signal based on a pre-encryption protocol; an optical control unit for encoding the plaintext optical signal based on the control signal to obtain the ciphertext optical signal; wherein the encryption protocol is based on the correspondence between the refractive index distribution of the optical control element and the control signal; the optical control element comprises an electrically controllable adjustable scattering medium, the electrically controllable adjustable scattering medium comprises a plurality of tunable anisotropic micro elements, and the refractive index distribution of the electrically controllable adjustable scattering medium can be changed based on the control signal loaded thereon. The system of the present application has good response speed and response accuracy, so as to improve the communication efficiency and communication quality of the communication system under the premise of ensuring the communication security.

The application discloses a kind of micro-pixel group and micro-lens array near-eye display lens, belong to augmented reality and near-eye display technical field.The near-eye display lens includes: optical lens, micro-pixel group array arranged thereon, micro-lens array, and substrate thin layer material, transparent optical adhesive layer, protective layer;Micro-pixel group contains micro-nano pixel, micro-nano pixel is composed of micro-nano pixel element, and micro-nano pixel element is micron / nanometer order independent driving monochromatic light emitting unit, integrates micro-nano light emitting, driving and other devices and functional layer;Micro-lens covers one or more micro-pixel groups and is arranged close to one side of human eye, realizes light collimation focusing and deflection into eye.The application discards traditional complex relay optical system, directly integrates display and optical control unit in optical lens, can realize digital image display, real scene direct vision and accurate fusion of virtual and real image, with high transparency, high optical efficiency, large field angle characteristics, lens can realize light and thin design, and wearing comfort is high.

This application provides a multimodal fusion-based safety lighting control system and method for gynecological examinations. This method is applied to intelligent gynecological diagnostic and treatment equipment in the field of biomedical engineering. It synchronously acquires visual images of the examination area, instrument operation status signals, and external control commands. The instrument operation status signals include the real-time distance and relative speed between the instrument tip and the biological tissue. Based on the visual images, an initial brightness target value is calculated, and near-field attenuation compensation is performed using the real-time distance and a preset reference table to generate basic lighting parameters. By judging the movement speed and reflectivity, anti-blur mode is superimposed, and anti-glare strategy optimization parameters are triggered, prioritizing responses to valid external commands. After the determined parameters are sent to the light source for execution, a new visual image is acquired and its quality is evaluated. If the image does not reach the optimization range, the parameters are adaptively adjusted and corrected. Using the scheme of this application, adaptive optical control can be driven by multimodal information fusion, thereby improving the accuracy of gynecological visual diagnosis.

The application discloses a multi-modal context perception control method, belonging to the technical field of intelligent wearable devices and intelligent optical control. The method realizes the global adaptive control of intelligent optical devices through the synchronous acquisition of four modal data of optical environment perception, eye physiology perception, user behavior perception and scene semantic perception, the spatio-temporal fusion of context features, lightweight AI decision, high-molecular nano low-loss transmission and high-precision closed-loop feedback. The application solves the technical pain points of traditional intelligent devices, such as single perception, control lag, large transmission loss, poor environmental adaptation, no context understanding and the like, realizes 10-second full-automatic optometry, 180ms focusing response, a steady-state error of less than or equal to 0.10D, a transmission loss of less than or equal to 3%, and an optometry accuracy of more than 98.8%, and can be widely applied to adaptive focusing intelligent glasses, intelligent optical lenses, medical eye health devices, AR / VR optical systems and the like. The application is unique, practical and has a comprehensive performance beyond international similar technologies, and has a high property right value and engineering application value.

The invention relates to a diamond metasurface ultra-compact optical tweezers device facing high-power laser and an extreme temperature environment and a control method. The device comprises an optical system, a motion control system and an imaging system. The optical system is integrated with a metasurface prepared based on diamond, the device is directly embedded into an optical path, and miniaturization of an optical tweezers system can be greatly promoted while complex non-contact control over particles is achieved. The high thermal conductivity, high damage threshold and excellent thermal stability of the diamond super-structure surface are utilized, so that the diamond super-structure surface still keeps stable optical control performance under long-term irradiation of high-power laser and an extreme temperature environment; therefore, the technical bottleneck that a traditional optical tweezers device and other material super-structure surface optical tweezers devices are difficult to work reliably in a severe environment is solved, and practical application of the optical tweezers technology in wider fields is powerfully promoted.

The invention belongs to the technical field of ultraviolet phototherapy, and discloses an ultraviolet treatment parameter generation system based on skin type automatic identification. Comprising a skin state sensing module used for generating a skin static holographic snapshot and triggering a micro-energy pre-irradiation action on a target skin area through the skin static holographic snapshot so as to obtain a photosensitive response dynamic set; the intelligent feature analysis module is used for obtaining a photosensitive skin feature-phenotype joint vector, performing multi-target deduction on the photosensitive skin feature-phenotype joint vector through a pre-constructed comprehensive evaluation criterion, and generating optimal spectral power distribution and an optimal dose matrix; the self-adaptive optical control module is used for driving the adjustable double-band light source to work and inverting effective ultraviolet energy actually reaching the corium layer to form steady-state treatment driving current; and the thermal safety monitoring and defending module is used for controlling the operation state of the adjustable double-band light source through the epidermal temperature field to realize individual differentiation treatment.