503 results about "Light responsive" patented technology

This invention discloses a visible-light-responsive dynamically covalently cross-linked self-healing polyurethane and its preparation method, belonging to the field of self-healing materials technology. The material is prepared by reacting diisocyanate, long-chain diol, butanediol, trimethylolpropane, and a monool containing an azophenylboronic acid structure in a certain proportion at 60°C. This invention achieves visible-light-responsive self-healing of the polyurethane material by introducing a visible-light-responsive azophenylboronic acid structure into the polyurethane and utilizing the photoresponsive cis-trans isomerization of the azo structure to regulate the reversible breakage and recombination of the boron-oxygen hexacyclic ring. The visible-light-responsive dynamically covalently cross-linked self-healing polyurethane material prepared by this invention maintains high mechanical strength (16.47 MPa) while exhibiting a strength self-healing efficiency of 95.8% after 8 hours of visible light irradiation, showing broad application prospects in smart materials, anti-corrosion coatings, and other fields.

The invention discloses a color cast correction method and device for white picture brightness compensation and a storage medium. The color cast correction method and device are used for performing dual correction on a display screen after Demura compensation is performed on the basis of a white picture. The method comprises the following steps: collecting regional images of a target screen under different exposure times, and calculating to obtain a brightness data mean value of a plurality of regional images; establishing a mapping relation according to the brightness data mean value and the actual brightness data of the regional image; calculating Euclidean distances from the centers of the plurality of regional images to the center of the target screen; constructing a brightness-exposure response function according to the mapping relation and the Euclidean distance to obtain a brightness-exposure characteristic matrix; correcting the brightness data mean value for the first time by using the brightness-exposure characteristic matrix to obtain first corrected brightness data; constructing a chromaticity-brightness correction function of each pixel point in the target screen; and correcting the first corrected brightness data for the second time by using the chroma-brightness correction function to obtain second corrected brightness data.

The invention discloses a visual detection test method for damage cracks of a solidified soil test piece, and particularly relates to the technical field of geotechnical engineering material detection. The method comprises the following steps: doping fluorescence labeling particles in a solidified soil test piece, and applying periodic load to induce crack formation after curing and forming; synchronously exciting fluorescent particles through an ultraviolet excitation light source, and collecting a short-wave fluorescence response image sequence; inputting the image sequence into a deep residual neural network model, identifying a nonlinear enhancement region of a fluorescence signal, and deducing a crack initiation position and a propagation path; constructing a three-dimensional dynamic model of crack evolution in combination with an image space reconstruction algorithm and time sequence comparison, extracting indexes such as a crack propagation rate, a bending angle and crack density, performing comparative analysis on the indexes and initial parameters of a material, evaluating a microstructure damage development mechanism, and outputting a visual damage evolution result; the method provided by the invention can realize high-precision, non-destructive and dynamic detection of the fine cracks in the solidified soil, and has the advantages of high identification sensitivity, strong modeling precision and good engineering adaptability.

The invention discloses a multi-modal sensory artificial synaptic device based on a framework material and a preparation method and application thereof. The artificial synaptic device comprises a substrate and a channel, wherein the channel is arranged on the surface of the substrate; the channel is an amorphous organic metal framework film which responds to light and gas stimulation; the metal electrode is arranged on the surface of the channel; the metal electrode comprises a source electrode and a drain electrode. Compared with the prior art, the framework material with excellent photoelectric response performance is adopted, and a novel artificial synapse device with multi-mode sensing ability is constructed by fully utilizing the regular pore structure, large specific surface area and good photoresponse characteristic of the MOF material. The two electrodes of the device are connected into electrical test equipment, the conductivity of the amorphous MOF thin film can be changed under the stimulation of optical pulse signals, and finally simulation based on photoresponse synaptic plasticity is achieved. The device is placed in different gas environments, and the conductivity of the MOF film can be changed by capturing and releasing target gas molecules through the porous characteristic of the amorphous MOF material, so that simulation based on gas response synaptic plasticity is realized.

The invention provides a heterojunction-based multi-mode photoelectric synapse device and a preparation method thereof. The heterojunction-based multi-mode photoelectric synapse device comprises a bottom electrode, a memristive functional layer, a photosensitive layer and a top electrode which are stacked in sequence, the memristive functional layer comprises metal oxide rich in oxygen vacancies and is provided with a micro-nano structure surface; the photosensitive layer covers the surface of the micro-nano structure of the memristive function layer, and forms a heterojunction interface with the memristive function layer; the oxygen vacancies and the heterojunction interface act synergistically, so that the device can respond to changes of optical signals, ambient temperature and ambient oxygen partial pressure at the same time, and the optical pulse intensity and the optical response current generated by the device have a non-linear relationship. Through cooperative regulation and control of an oxygen vacancy and a heterojunction interface, the device can respond to changes of an optical signal, environment temperature and environment oxygen partial pressure at the same time, a non-linear relation exists between optical pulse intensity and optical response current generated by the device, and then the function of integrating multi-mode sensing and sensing storage calculation is achieved.

The invention relates to the technical field of biological materials, in particular to a pillararene-based photoresponse MOF-based ion gating nanochannel and a preparation method thereof. According to the pillararene-based photoresponse MOF-based ion gating nano-channel, a bullet-shaped nano-channel is prepared by taking PET (Polyethylene Terephthalate) as a substrate, and the substrate can provide structural support; p5A-MOF-1 based on pillararene is used as a core functional layer, and the core functional layer can provide a stable cavity environment; a P5A-MOF-1 cavity is filled with an organic aromatic azo compound, so that the light response structure change is realized. And the effective volume of the P5A-MOF-1 cavity is regulated and controlled through the photoisomerization effect of the azo group, so that precise gating of ion transmission is achieved. The preparation method provided by the invention is simple and convenient to operate, mild and controllable in condition and beneficial to large-scale production.

The invention relates to the field of packaging detection, in particular to a full-color Micro LED micro display module packaging detection method, device and equipment, and the method comprises the following steps: carrying out pixel-level thermal induction on a micro display module to be detected, collecting global pixel thermal induction self-luminous response parameters, carrying out instantaneous light response analysis, and generating an instantaneous light response curvature; multi-time-point response trend analysis is carried out based on the instantaneous light response curvature, global pixel thermal disturbance coupling evolution is carried out, and a pixel thermal disturbance response map is constructed; performing inter-pixel multi-dimensional response difference calculation and abnormal deviation region positioning according to the pixel thermal disturbance response map, and extracting an abnormal deviation display module region; performing spatial arrangement inversion on the abnormal deviation display module area to generate actual pixel point coordinates of the abnormal area; according to the method, error compensation is carried out on the offset pixels through precise and efficient huge transfer error analysis, and the packaging precision and reliability control level of the micro-display module are enhanced.

The invention discloses an electrochemical biosensor of a light-driven nanopore channel and application of the electrochemical biosensor. According to the sensor, a photoresponse nanopore membrane is constructed, an outer surface aptamer probe is combined, asymmetric photothermal gradient driven ion transmission induced by near-infrared light is utilized, and ultra-sensitive detection on a target object is realized by regulating and controlling the charge density of the outer surface. According to the electrochemical biosensor provided by the invention, traditional voltage driving is replaced by asymmetric near-infrared light driving, so that the electrochemical biosensor has a relatively wide detection range and an extremely low detection limit, and high-sensitivity and specific detection on a target object can be realized. The electrochemical biosensor can be used for detecting microcystin-LR (MC-LR), the detection limit reaches 1 * 10 <-7 > mu g / L, the sensitivity is improved by 5 orders of magnitude compared with that of a traditional voltage-driven sensor, and the electrochemical biosensor can be applied to trace pollutant detection in the fields of environmental monitoring, food safety and the like.

The invention discloses a preparation method of a high-stability photoresponse covalent organic framework membrane and application of the high-stability photoresponse covalent organic framework membrane in selective separation of multiple components. 4-azido azobenzene is prepared by carrying out azido reaction on 4-aminoazobenzene in an acidic aqueous solution, and then a BPTA-TAPB-COF membrane is used as a matrix to prepare the high-stability photoresponse covalent organic framework membrane. 4-azido azobenzene is efficiently grafted to the pore wall of the BPTA-TAPB-COF membrane through a click chemical reaction, the photoresponse covalent organic framework membrane is constructed, and the covalent organic framework membrane can be used for multi-component selective separation and is suitable for multi-component systems with different sizes. The azobenzene group in the pore channel of the prepared Azo-COF membrane is subjected to reversible cis-trans isomerization under the irradiation of ultraviolet / visible light, the response speed is high, and the cycle performance is good; the Azo-COF membrane has good application in the light-operated nanofiltration process, the performance of the Azo-COF membrane is not reduced after the Azo-COF membrane is continuously recycled for 12 days, and the structure of the Azo-COF membrane is kept stable.

The invention relates to the technical field of intelligent materials and structural dynamics, solves the technical problems that an existing tumbler structure is lack of self-continuous motion ability and depends on external energy, and particularly relates to a light-driven liquid crystal elastomer tumbler and a nonlinear dynamics control method thereof. Self-continuous swinging under illumination of certain intensity is realized by utilizing light response design of the liquid crystal elastomer and coupling of nonlinear restoring force, and application is performed by utilizing regular movement of the liquid crystal elastomer. The tumbler structure can generate a state alternating process from swinging out of an illumination area to swinging back to the illumination area under the condition of specific light source intensity, and the change amplitude of standing and inclining alternation can be changed by adjusting illumination parameters. According to the tumbler structure, the limitation problem of a traditional tumbler can be solved, the tumbler structure can achieve self-continuous movement under the condition that the tumbler structure does not depend on external periodic stimulation, and the application of the tumbler structure is expanded.

The invention discloses an image sensor and a manufacturing method thereof, and belongs to the technical field of semiconductors. The photodiode is arranged in the substrate, and a first concave part is arranged in the photodiode; the deep trench isolation structure is arranged in the substrate, the deep trench isolation structure is located between the adjacent photodiodes, the deep trench isolation structure comprises a light-transmitting graphene layer, and the light-transmitting graphene layer is attached to the photodiodes; the first concave part is filled with a graphene layer to form the photoelectric response region, and the depth of the photoelectric response region is firstly increased and then decreased in the width direction of the photoelectric response region. According to the image sensor and the manufacturing method thereof provided by the invention, the light response range and efficiency of the image sensor can be improved.

The invention discloses a multi-morphology strontium titanate photocatalyst with near-infrared light response as well as a preparation method and hydrogen production application thereof, strontium titanate precursors with different morphologies are synthesized through a hydrothermal method, the strontium titanate precursors are subjected to heat treatment under a protective atmosphere, surface carbonization is realized, and the strontium titanate photocatalyst with near-infrared light response is obtained. The multi-morphology strontium titanate photocatalyst with near-infrared light response is obtained. By selecting different titanium sources and reaction conditions, strontium titanate with various morphologies such as mesoporous microspheres, cubic phases and dendrites can be directionally synthesized, and the requirements of different application scenes on catalyst structures are met. Defects and new energy levels are introduced on the surface of SrTiO3 through surface carbonization treatment, so that the light response range of the SrTiO3 is successfully expanded to a near-infrared region, near-infrared light can be efficiently utilized for water photolysis hydrogen production, and wide application prospects are achieved.

An integrated configurable photodetector with an ultra-high circular polarization extinction ratio and a preparation method therefor are provided. The photodetector includes a metal reflective layer, a dielectric layer, an electrode layer, and a two-dimensional material layer. The electrode layer includes symmetrically arranged Z-shaped metallic optical antenna arrays which are respectively integrated with a source electrode and a drain electrode and have opposite chirality. The photodetector operates at zero bias state, and a photo-response is photovoltaic effect, hot electron injection, photo-thermoelectric effect and so on induced by a Schottky junction composed of the source electrode, the drain electrode and the two-dimensional material. By adjusting the distribution of the incident light in the source and drain electrode regions, under specific Circularly polarized light, photocurrents of equal magnitude but opposite directions cancel each other out, resulting in a net output of zero and significantly reducing noise.

The invention discloses a bismuth oxyiodide modified oxygen-vacancy-enriched titanium dioxide nanotube array and a preparation method and application thereof, which realize wide-range and efficient light response efficiency: BiOI (forbidden bandwidth is approximately equal to 1.8 eV) is used as an excellent visible-light-driven photocatalyst and forms a semiconductor heterojunction with TNAs after being loaded, the spectral response range of the material is widened to a visible light wave band, and the visible-light-driven visible-light-driven photocatalyst can be used for preparing a visible-light-driven photocatalyst. And the construction of interface oxygen vacancies also improves the transmission efficiency of photon-generated carriers, so that the photocatalytic efficiency and the visible light utilization rate of the material are greatly improved. The material prepared by the invention can be used for a long time after being fixed in a reactor, and after the material is recycled for 20 times, the degradation rate of typical refractory organic matters in single 60 minutes can still be kept above 90%.

The invention discloses a photoresponse biomass-based material for removing organic-inorganic combined pollution in water as well as a preparation method and application of the photoresponse biomass-based material. The preparation method specifically comprises the following steps: (1) designing a photosensitive functional monomer; (2) preparing a biomass macromolecular initiator; (3) preparing the photoresponse biomass adsorbent; and (4) preparing the photoresponse biomass-based intelligent material. The photoresponse biomass-based material prepared by the method is rich in raw material source, green and environment-friendly, can be used for adsorption of composite pollutants (such as heavy metal / organic matter composite pollution and the like) in the environment, and can simultaneously realize desorption of the pollutants, photocatalytic degradation of the pollutants and regeneration of an adsorbent under the illumination condition; the defects that the traditional adsorbent regeneration process is complicated, secondary pollution is easy to generate, the repeated utilization rate of the adsorbent is low and the like are effectively overcome, and wide application prospects are achieved.

The invention belongs to the technical field of two-dimensional material photoelectric devices, and particularly relates to a self-driven polarization sensitive photoelectric detector based on a Ta2NiSe5 / ReSe2 I-type heterojunction and a preparation method and application thereof. The self-driven polarization sensitive photoelectric detector comprises a Si / SiO2 substrate, a Ta2NiSe5 layer and a ReSe2 layer which are sequentially arranged from bottom to top, and the ReSe2 layer and the Ta2NiSe5 layer form a Van der Waals heterojunction with an I-type energy band. According to the self-driven polarization sensitive photoelectric detector, a cooperative mechanism is formed through directional transmission and use of a built-in electric field and a carrier limiting effect, photon-generated carriers are effectively limited in the ReSe2 layer, non-radiative recombination of the carriers at an interface is greatly reduced, and the key performance index, namely the photoresponse speed, of a device is further improved. In addition, the in-plane anisotropy of ReSe2 endows the device with sensitive response capability to the light polarization state.

The application discloses an oxide-sulfide S-type heterojunction composite photocatalyst as well as a preparation method and application thereof. x The oxide-sulfide S-type heterojunction composite photocatalyst is prepared by adding WO x into ethanol, uniformly ultrasonic dispersing, and then performing heating and dry distillation. The application successfully constructs a tungsten oxide and cadmium sulfide heterojunction, has good light response, utilizes a heterojunction interface formed by the two catalysts and having a synergistic effect, improves the photocatalytic hydrogen production capacity, and promotes selective oxidation of benzyl alcohol. The application has simple operation and good repeatability.

The application relates to a dual-wavelength silicon-based PIN photoelectric sensor with ultralow dark current and high responsivity, which comprises a silicon substrate, a central P + anode region, high resistance / intrinsic silicon absorption region, bottom N + cathode region, junction termination extension region JTE, guard ring GRL, surface passivation layer and electrode structure. Through accurate regulation of the junction edge electric field, the application effectively suppresses the leakage current and early breakdown phenomenon caused by the high edge electric field in the plane PIN structure, realizes sub-nanoampere dark current output, and simultaneously, through synergistic optimization of the intrinsic region thickness and the doping distribution, the sensor obtains higher light responsivity at two typical wavelengths of 660 nm and 940 nm, and meets the requirements of short-wave shallow absorption and long-wave deep absorption.

The invention discloses a method for light-controlled release of TAD in an indole-TAD adduct, and belongs to the technical field of light-responsive reversible chemical reactions. The invention provides a technical scheme of a method for releasing TAD in an indole-TAD adduct in a light-operated manner, a C-N bond in the indole-TAD adduct is activated by light to realize that the TAD-indole adduct releases TAD at a low temperature, and groups in the indole-TAD adduct are regulated and controlled to controllably release TAD under different illumination (wavelength) conditions. The method is simple to operate and mild in condition.

The invention is applicable to the technical field of treatment of organic pollutants in water, and provides a catalytic material for degrading perfluoro-polyfluorinated compounds as well as a preparation method and application of the catalytic material. Through defect engineering and crystal face regulation and control, the CoFe2O4 / BiOCl (010)-Ovs heterojunction material rich in oxygen vacancies is constructed. According to the material, the conductivity is remarkably enhanced, the light response range is widened, reaction active sites are enriched, separation and migration of photon-generated carriers are promoted, the electron-hole utilization efficiency is improved, and then the photoelectrocatalysis performance is improved. The material accelerates the redox cycle of Co < 2 + > / Co < 3 + > and Fe < 2 + > / Fe < 3 + >, significantly improves the activation efficiency of PMS and the generation of active oxygen species, and has the multifunctional characteristics of photoelectrocatalysis and PMS activation. The PMS / PMS composite material is prepared into a photo-anode, the photo-anode is applied to a photoelectrocatalysis-PMS coupling system, under low voltage, PMS is activated through photon-generated carriers to generate ROS, a multi-ROS synergistic oxidation path is formed, and efficient degradation and defluorination mineralization of PFASs are achieved. The system has excellent stability and environmental adaptability, and has a wide application prospect.

The invention provides a dual-responsiveness eutectic solvent as well as a preparation method and application thereof. The dual-responsiveness deep-eutectic solvent comprises hydrogen bond donors and hydrogen bond acceptors, wherein the hydrogen bond donors comprise a first hydrogen bond donor and a second hydrogen bond donor; the first hydrogen bond donor comprises a polyalcohol compound containing a light response group, and the second hydrogen bond donor comprises a temperature-sensitive compound. The dual-responsiveness deep-eutectic solvent provided by the invention realizes one-step high-selectivity leaching and separation of various valuable metals from the positive electrode active material of the waste lithium ion battery, so that transition metal elements are separated out in a precipitation form, the lithium element is leached in the solution, and the subsequent extra complicated separation process is avoided.

This invention provides a method for preparing a dual-photoresponsive anti-counterfeiting ink, specifically comprising: (1) mixing a carbon source with a nitrogen source, a modifier, and a solvent, and ultrasonically reacting the mixture for a period of time to obtain a carbon quantum dot precursor liquid; (2) pouring the carbon quantum dot precursor liquid obtained in step (1) into a tetrafluoroethylene liner of a stainless steel high-temperature and high-pressure autoclave, placing the autoclave in a forced-air drying oven, and reacting at high temperature for a period of time to obtain carbon quantum dot ink. The preparation method of this invention is simple; a carbon quantum dot ink with two photoresponsive effects can be prepared in a single solvothermal step, simplifying the preparation process and facilitating application. The handwriting written with the prepared dual-photoresponsive anti-counterfeiting ink emits strong green fluorescence under 365nm ultraviolet light irradiation, and the handwriting can be clearly displayed under 980nm infrared light, providing dual encryption and improving the anti-counterfeiting performance of the material.

To provide a photoresponsive material that solves at least one of the problems of conventional technology. [Solution] The material has a crystalline structure formed by crosslinking at least one lanthanide with an organic group having 1 to 3 carbon atoms, wherein the organic group contains at least carbon atoms which may be partially or entirely substituted with other nonmetallic carbon group elements, and oxygen atoms which may be partially or entirely substituted with other nonmetallic oxygen group elements. A photoresponsive material having a peak component in the range of 533 eV to 534 eV in the O1s spectrum obtained by hard X-ray photoelectron spectroscopy.

The invention discloses a water-based photoresponse type rosin-based aggregation-induced emission amphiphilic molecule as well as a preparation method and application thereof. The molecular structural formula of the water-based light response type rosin-based AIE amphiphilic molecule is shown in the specification, or n ranges from 15 to 30. According to the water-based light-responsive rosin-based AIE amphiphilic molecule, a tetraphenyl ethylene or cyanostilbene fluorophore is introduced into the anhydride part of maleopimaric acid through an imidization reaction, and groups such as sodium carboxylate, amino acid sodium or polyethylene glycol are introduced into the carboxylic acid position to prepare the water-based light-responsive rosin-based AIE amphiphilic molecule. The solid of the molecule has blue fluorescence emission, and can be used for dyes or solid anti-counterfeiting materials. A photoresponsive AIE aqueous solution is prepared by using the amphiphilic molecule alone or compounding the amphiphilic molecule with dodecyl polyoxyethylene ether, and the photoresponsive AIE aqueous solution can be used for water-based anti-counterfeiting ink, cell imaging or 4-nitrophenol detection and the like.

The invention provides an LED light output intelligent control method based on high-frequency driving, and relates to the technical field of intelligent control, and the method comprises the steps: applying a high-frequency detection pulse sequence with the same amplitude and increasing frequency to each lamp bead in an LED array, collecting the light response time constant and peak light intensity data of the lamp bead under the excitation of the detection pulse sequence, and obtaining the light response time constant and peak light intensity data of the lamp bead; and a frequency-light response feature vector matrix is constructed, and grouping management and distributed prediction control of the LED array are realized. According to the invention, the light response characteristic difference between the lamp beads is fully considered, and the accuracy and uniformity of light output control are improved; meanwhile, by establishing a distributed predictive control model, the optimal driving frequency and duty ratio parameter combination of each group can be predicted in real time, the problem of light response nonlinearity under the high-frequency driving condition is effectively solved, and the stability and efficiency of dynamic light output are improved.

An edge-lit waveguide illumination system with a thin, flexible layer of optically transmissive material designed for guiding light through optical transmission and total internal reflection. The system features a randomized two-dimensional pattern of discrete cavities formed on its back surface, and an array of linear cylindrical lenses on its front surface. Light is emitted by a plurality of LEDs positioned along a light input edge. A sheet of reflective material is positioned coextensively on the back surface. At least one cavity features a curved wall with a specific angle. Additional components may include a photoresponsive layer, a heat-dissipating metallic substrate with side-emitting LEDs, and optical adhesives or encapsulants. The system may also incorporate luminescent centers and / or a light-diffusing layer for altering light characteristics.

A display panel comprises: a pixel in a display area of the display panel, the pixel including: a light emitting device configured to emit light responsive to a driving current; a driving transistor configured to supply the driving current; and a plurality of switching transistors configured to control the supply of the driving current to the light emitting device by the driving transistor, wherein at least one of the plurality of switching transistors is configured to provide a path to ground through which an excitation current exits within the pixel. Accordingly, it is possible to improve the brightness phenomenon occurring due to an unintentionally increased amount of current in the pixel adjacent to the through hole, thereby the image quality may be improved.

The invention discloses a p-type tungsten disulfide nanotube bundle, a preparation method thereof and application of the p-type tungsten disulfide nanotube bundle in a photoelectric detector with adjustable light response linearity, and the method comprises the following steps: depositing an Au film on a SiO2 / Si substrate, and carrying out annealing to form a zero-dimensional Au nanoparticle catalytic layer; the method comprises the following steps: respectively placing tungsten trioxide (WO3) powder and sulfur (S) powder in different areas of a single-temperature-area tubular furnace, heating to 850-1000 DEG C in an Ar / H2 mixed gas low-pressure atmosphere, and reacting to generate a WS2 nanotube bundle with a multi-wall hollow structure; the obtained material has a cluster-shaped morphology in dense interlaced distribution, and shows stable p-type conductive characteristics. A photoelectric detector prepared based on the material has high responsivity (2.7 * 10 < 4 > A / W), high detection rate (1.6 * 10 < 13 > Jones) and quick response (15 ms) in a wave band of 375-1550 nm, and keeps stable performance in a range of 10-300 K. The method is simple in process, the growth process of the tungsten disulfide nanotube bundle can be accurately controlled, the polarity of tungsten disulfide is changed to be p-type, and large-scale preparation can be achieved.

Photochromic polyimide material and preparation method, coating, coating, optical device and application; photochromic polyimide material, by introducing photochromic unit into polyimide structure, the material can quickly respond and present color change under ultraviolet light irradiation, and restore to colorless state by visible light or heating; and the polyimide matrix provides high mechanical strength, thermal stability and chemical resistance, so that the material maintains stable color changing ability in multiple light-color changing cycles. At the same time, the weather resistance of the material is greatly improved, which can adapt to outdoor and harsh environment, and expands the application prospect of the material in the fields of intelligent coating, optical device, sensor and the like, thereby solving the problem that the existing photochromic material cannot simultaneously have photoresponsivity, mechanical performance, chemical stability and weather resistance.

The invention discloses a preparation method of a light response type UV regulation and control material and a 3A optical film, and relates to the technical field of optical films.The preparation method comprises the steps that spiropyrane is dissolved in ethyl acetate to form an oil phase, and first liquid is obtained; dispersing nano silicon dioxide in a water phase containing gelatin to obtain a second liquid; stirring and mixing the first liquid and the second liquid to form an emulsion; evaporating the emulsion at 55-65 DEG C for at least 12 hours to form a spiropyrane-silicon dioxide hybrid nanocapsule; the spiropyrane-silicon dioxide hybrid nanocapsule is dispersed into light-cured polyacrylate, and a light response type UV regulation and control material is obtained; the 3A optical film comprises a light response type UV regulation and control layer, and the material of the light response type UV regulation and control layer is a light response type UV regulation and control material. The 3A optical film realizes flexible regulation and control of absorption of ultraviolet rays according to different weather scenes.