59 results about "Photic entrainment" patented technology

The invention relates to a wide-spectrum pulsed light detector based on a photoacoustic effect. The wide-spectrum pulsed light detector comprises a light-to-sound module, a sound coupling module, an ultrasonic detection module, a signal line and a shell; the light-to-sound module is used as a probe, and the light-to-sound module includes a focusing lens group and a photoacoustic thin film with a wide-spectrum light absorption characteristic; the ultrasonic detection module includes a piezoelectric thin film and a sound absorbing material; the focusing lens group, the photoacoustic thin film, the sound coupling module, the piezoelectric thin film, and the sound absorbing material are arranged in sequence; and the photoacoustic thin film, the sound coupling module, the piezoelectric thin film and the sound absorbing material are arranged in an inner cavity formed by the shell. The wide-spectrum pulsed light detector uses the photoacoustic thin film based on the photoacoustic effect, thephotoacoustic thin film generates ultrasound due to the photoacoustic effect, so that the problem of wavelength selectivity of a photoelectric effect light detector is solved.

The invention provides a long-afterglow luminescent material based on quantum dot sensitization and an application thereof, and belongs to the field of luminescent materials. The long-afterglow luminescent material based on quantum dot sensitization, provided by the embodiment of the invention, comprises a light absorbing agent which comprises quantum dots and antenna molecules matched with the quantum dots in energy level and coordinated on the surfaces of the quantum dots and is used for interacting with oxygen to generate singlet oxygen under the action of exciting light, a photochemical buffer agent which is used for reacting with singlet oxygen and releasing energy, and a luminescence agent which is used for receiving energy and emitting light. The long-afterglow luminescent materialprovided by the invention can be excited by low-power-density light sources such as sunlight and fluorescent lamps to realize long-afterglow luminescence. The invention also provides an application ofthe long-afterglow luminescent material in a flexible film and a multicolor adjustable coding material. The invention also provides an application of the long-afterglow luminescent material in imaging in a living organism.

The invention provides a projection screen and a processing method thereof. The projection screen comprises a diffusion layer, a micro-lens array and a base material sequentially distributed from a projection light incident side; a Fresnel microstructure is arranged on the inner side of the base material; a reflecting layer is arranged on a part of the surface of the Fresnel microstructure, and alight absorbing layer is arranged on the other part of the surface of the Fresnel microstructure; the micro-lens array is used for focusing projection light on the reflecting layer; the reflecting layer is used for reflecting the projection light back to an audience view field; and most of ambient light is absorbed by the light absorbing layer. According to the projection screen and the processingmethod thereof of the invention, the structure and the size of the micro-lens array are properly set, so that the projection light only enters the reflecting layer of the micro-structure, and most ofthe ambient light is absorbed by the light absorbing layer, and therefore, the light utilization rate and ambient light resistance of the screen are improved; the reflectivity of the screen is reduced, while, the reflectivity of the projector is not reduced. The reflecting screen has high gain and high contrast; the screen is suitable for an ultra-short-focus projector; and a better visual effectof the screen can be ensured.

The invention discloses a display screen assembly. The display screen assembly comprises: a display screen; a transparent cover plate, wherein the transparent cover plate is located on one side of thedisplay screen, and the transparent cover plate and the display screen are arranged in a stacked mode; and a light absorption coating, wherein the light absorption coating is located between the display screen and the transparent cover plate and used for providing polarization performance for the display screen. The display screen assembly provided by the invention comprises the display screen, the transparent cover plate stacked on the display screen and the light absorption coating located between the display screen and the transparent cover plate, and the light absorption coating at leastpartially covers the display screen and is used for providing polarization performance for the display screen. By the adoption of the structure, on one hand, the light absorption coating can absorb and shield light of the display screen; and on the other hand, the light absorption coating is very thin and can adapt to the bending process of the display screen, and the whole display screen assemblycan be made thinner. The invention further discloses an electronic device comprising the display screen assembly and a method for preparing the display screen assembly.

The invention relates to the technical field of anti-light curtains. The technical scheme of the invention is as follows: the invention discloses a manufacturing method of a black-gate light-resistantcurtain for a laser television; the black-gate light-resistant curtain comprises a supporting curtain, a flexible optical film is arranged on the support screen; a prism structure is arranged on theoptical film; wherein the upper surface of the prism structure is a light absorption surface, the lower surface of the prism structure is a reflection surface, and the manufacturing method of the black gate light-resistant curtain comprises the following steps: S1) manufacturing an optical prism array: adopting UV resin or a thermoplastic material as a base material, and carrying out hot press molding by adopting a mold to form the prism structure with a transversely distributed surface; the method comprises the following steps of S1, preparing a prism structure, S2, printing a white reflective layer on a light absorption surface and a reflective surface of the prism structure through gravure pad printing equipment, S3, printing a black light absorption layer on the light absorption surface through gravure pad printing equipment, and S4, attaching the printed curtain to a supporting curve. The prism structure is formed at a time through hot pressing of a base material, operation is easy, and precision is high.

The invention provides an optical coating for a projection screen. The optical coating comprises the following components in parts by weight: 2-15 parts of a light absorption material, 5-20 parts of aluminum silver powder, 20-60 parts of an acrylate oligomer, 10-45 parts of a diluent, 0.5-15 parts of a photoinitiator and 0.1-6 parts of an auxiliary agent, wherein the light absorption material is one or more selected from a group consisting of carbon black, lamp black, iron black and aniline black, the average particle size of the light absorption material is 20-2000 nm, the aluminum silver powder is in a sheet shape, and the average particle size of the aluminum silver powder is 3-10 [mu]m. A film-forming substance in the optical coating for the projection screen can be dissolved without using a volatile organic solvent, and is cured by adopting a photocuring process, so no volatile organic compound is discharged, and gas pollution can be greatly reduced; directional high reflectivityof the screen is achieved through directional arrangement of the aluminum silver powder, and then a high-gain effect is achieved; and the contrast ratio of the screen is improved through addition of the light absorption material, and an image color is more saturated and brighter.

The invention discloses a display module and a manufacturing method thereof. According to the technical scheme, a light absorption layer is arranged on an array substrate, a part of a first electrode is exposed out of the light absorption layer, the thickness of the light absorption layer is larger than the sum of the thickness of the first electrode and the thickness of a conductive adhesive on the surface of the first electrode, and a mounting groove is formed in the side, away from the array substrate, of the light absorption layer; and the light-emitting element is installed in the installation groove and connected with the first electrode through the conductive adhesive. The light absorption layer surrounds the side wall of the light-emitting element, so that the crosstalk problem of emergent light of the side wall of the light-emitting element can be avoided. In addition, the light absorption layer further comprises a diversion trench, the diversion trench can collect the overflowed conductive adhesive when the light-emitting element is installed, and the problem that other areas are polluted by the overflowed conductive adhesive can be avoided.

The invention discloses a cargo outer package disinfection device. The whole device is S-shaped, one side of the device is an input end, the other side of the device is an output end, and an input transition bin, an input arc shielding bin, an adjusting bin, a disinfection bin, an output arc shielding bin and an output transition bin are sequentially arranged from the input end to the output end; adjustable quick hasps are arranged on four sides of each bin body and are used for detachably connecting the adjacent bin bodies; and mirror stainless steel is arranged on the inner wall of the disinfection bin, and multiple sets of angle-adjustable pulsed accent light lamps are arranged on the four surfaces in the disinfection bin. According to the device, the adjustable quick hasps are arranged among all the structural bodies, so that the whole device can be quickly disassembled and assembled in a very short time and put into operation again, and the flexibility is extremely high. Besides, black sound absorption cotton is mounted on the arc-shaped inner wall of the S-shaped structure, the arc-shaped inner wall can conduct diffuse reflection on the light, beside, a light absorption material can consume the harmful light, and therefore, the effect of shielding the harmful light is achieved.

The invention discloses a double-light-source water quality COD detection sensor with adjustable range. The sensor comprises a shell, a light source part, a light absorption chamber part and a photoelectric detection part. The light source part adopts double light sources and comprises irradiation light and reference light; a sample injection hole and a sample injection hole cover are arranged at the positions, corresponding to the light absorption chamber, of the shell, the light source part and the light absorption chamber part are separated through a transparent sliding partition plate, the light source is fixed to the transparent sliding partition plate, and the transparent sliding partition plate is controlled by a sliding partition plate controller; and the light absorption chamber part and the photoelectric detection part are separated by a transparent fixed partition plate. According to the invention, the optical path from the light source to the photoelectric detector is changed, so that the measuring range and the measuring precision are changed; the interference of turbidity, water color, temperature and other factors on the measuring result is reduced by adding reference light, the water temperature is detected in real time, and temperature compensation is carried out to improve the accuracy.

The invention discloses an atmospheric pollution monitoring system which structurally comprises a monitoring box, an auxiliary block, an adjusting block, a base and an adjusting rod, the monitoring box is mounted at the top of the adjusting rod, the adjusting rod is movably clamped with the monitoring box, the auxiliary block is arranged on the adjusting rod and is in clearance fit with the adjusting rod, and the adjusting block is mounted on the adjusting rod. The adjusting rod and the adjusting block are movably connected through a movable shaft, a base is installed at bottom of the adjusting rod, and the base and the adjusting rod are fixedly connected. According to the invention, the light absorption plate is arranged at the top of the monitoring structure, the irradiation light source can directly irradiate the surface of the light absorption plate, the assembly structures of the light absorption plate are all installed at the bottom, no assembly structure is arranged on the periphery of the light absorption plate, and when the natural light deflects, the light source is not blocked by the assembly structure, so that the light absorption of the equipment during monitoring is not influenced, and the accuracy of atmospheric pollution monitoring is not reduced.

The embodiment of the invention discloses a display screen, a display device and a manufacturing method of the display screen. The display screen comprises a display panel and a light bar, and the light bar is attached to the display surface of the display panel. The light bar comprises an array substrate and a plurality of light-emitting elements arranged on the array substrate side by side, and a first gap is formed between every two adjacent light-emitting elements. The light bar further comprises a light absorption layer arranged on the array substrate, and the light absorption layer is arranged in a first gap between at least two adjacent light-emitting elements. By arranging the light absorption layer in the first gap between the at least two adjacent light-emitting elements, part of light emitted from the side faces of the corresponding light-emitting elements can be absorbed, so that the light-emitting angle of the light bar is reduced, the matching of the light-emitting angle of the light bar and the light-emitting angle of the display panel is improved, and the overall display effect of the display screen is improved.

The invention provides a display panel and a manufacturing method thereof, and relates to the technical field of display. The display panel can reduce the reflection of external light so as to reduce the interference of reflected light on the display panel. The display panel comprises pixel units; and each pixel unit comprises a non-light-emitting area and at least three disconnected light-emitting areas, each light-emitting area comprises an organic light-emitting functional layer and a first electrode, and the first electrode is arranged on the side, away from the substrate, of the organic light-emitting functional layer, the non-light-emitting area comprises a pixel defining layer and a light absorption part, and the light absorption part is arranged on the side, away from the substrate, of the pixel defining layer, the pixel defining layer is at least provided with three openings, and the organic light-emitting functional layers of the light-emitting areas are arranged in different openings. the display panel further comprises a plurality of lenses arranged in an array mode, and the lenses are arranged on the light outgoing side of the display panel; the lenses at least cover all the light-emitting areas in the pixel units and non-light-emitting areas between the adjacent light-emitting areas; and the lenses are configured to converge the external light emitted to the first electrodes to the light absorption parts.

The invention provides a backlight module and a display device; the backlight module comprises a light guide plate and a first reflector plate, the light guide plate comprises a light outgoing surface, a light incoming surface and a plurality of light guide plate side surfaces, and the first reflector plate is arranged on the light guide plate side surfaces; the first reflector plate comprises a reflecting layer and a light control layer, and the light control layer is arranged on the side, close to the light guide plate, of the reflecting layer; the light control layer comprises a plurality of light absorption pieces, and the light absorption pieces are arranged at intervals in the direction perpendicular to the light emitting surface; every two adjacent light absorption pieces form a light control interval, and the light control intervals are used for absorbing light with the first incident angle larger than a preset critical angle; a first reflecting sheet comprising a reflecting layer and a light control layer is arranged on the side edge of a light guide plate; the light control layer of the first reflector plate is provided with a plurality of light control intervals formed by the light absorption pieces, each light control interval can absorb light with the first incident angle larger than the preset critical angle so as to prevent the light from being emitted out of thenarrow frame area, and therefore the problem of light leakage of the side edge of the narrow frame display panel is solved.

The invention provides a light-emitting device and a preparation method thereof, a display substrate and a display device, and relates to the technical field of display, and the light-emitting device comprises a first electrode and a second electrode which are oppositely arranged; a light-emitting functional layer which is located between the first electrode and the second electrode, wherein the light-emitting functional layer comprises a light-emitting material, the light-emitting material is configured to emit light in response to control of an electric signal on the first electrode and the second electrode, and light emitted by the light-emitting material comprises target light with a target color; the light-emitting functional layer is doped with a light-absorbing material, the light-absorbing material is configured to at least absorb mixed-color light, and the mixed-color light is light different from the target light in color. According to the invention, the mixed-color light emitted by the residual luminescent material can be absorbed, and the mixed-color light is prevented from influencing the display effect.

The invention provides a projection screen, which comprises an optical collimation layer and a surface diffusion layer which are arranged in sequence, and is characterized in that a grating absorptionlayer for absorbing ambient light from all directions except the projection light direction is also arranged between the optical collimation layer and the surface diffusion layer; the grating absorption layer comprises a plurality of light absorption annular units with different radiuses, the plurality of light absorption annular units are concentrically and annularly arranged, each light absorption annular unit is formed by arranging a plurality of gratings along the circumferential direction of a concentric ring, the light absorption annular units are arranged around the vertical symmetriccenter line of the projection screen, and the distance between every two adjacent gratings in the same light absorption annular unit is gradually increased in the direction in which the concentric rings extend towards the left side and the right side of the projection screen in the circumferential direction of the concentric rings. By arranging the gratings which are arranged in the concentric ring shape and are uneven in density, the projection screen has the advantages of being good in brightness uniformity and high in ambient light resistance.

The present invention discloses an electronic measuring instrument suitable for strong light environment. The electronic measuring instrument comprises a device body, a battery bin is arranged on theouter surface of one side of the device body, a shock absorption layer is arranged on the outer surface of the front end of the device body, and a charging socket and a control panel are arranged on the outer surface of the front end of the shock absorption layer; and the outer surface of the other side of the device body is provided with an anti-strong-light measurement mechanism and an installation clamping groove, and the outer surface of one side of the installation clamping groove is provided with a folding auxiliary measurement mechanism. The anti-strong-light measuring mechanism comprises a black light absorbing layer, a light source sensing module, an infrared measuring camera module, a clamping plate, a mounting plate, a protruding stud, a fixing pile, a mounting block and a compression spring. The electronic measuring instrument suitable for strong light environment is convenient for people to measure, has the advantages of convenience in storage and the like while increasingthe characteristic of preventing strong light from causing instability of measured data, and brings a better application prospect.

The invention discloses a driving suitability detecting device and a detecting method. An integrated sealed-type spectacle structure is adopted, and the outer layer of the spectacle structure is applied with a black light-absorbing material, so that light leaking and pupil change caused by visual attention of human eye pupils can be effectively prevented; by applying a flexible silica gel materialto a part where spectacles fit to a face, the face can fit to the spectacles, and fatigue can be directly detected, so that the precision of fatigue detection can be improved; by stimulating pupils with a rectangular surface light source, the pupils can be stimulated by the light source uniformly; by irradiating the pupils with an infrared surface light source, interference of the infrared pointlight source to pupil image acquisition can be avoided, so that pupil imaging is more uniform and cannot get interfered easily; motion videos of the pupils are analyzed through a three-dimensional long-term deep convolutional learning network, and driver's task suitability is objectively classified and judged, so as to deeply understand the motion states of the pupils; therefore, end-to-end detection is achieved, and detection accuracy and driving suitability detecting efficiency are improved; and the device is simple in structure and is convenient and rapid to use.

The invention relates to the technical field of anti-light curtains. The technical scheme of the invention is as follows: an arc-shaped black gate light-resistant curtain for a laser television comprises a supporting curtain, a base material layer is arranged on the supporting curtain, a plurality of prism structures are arranged on the outer surface of the base material layer to form a prism structure array, the cross section of each prism structure is triangular, the lower side face of each prism structure is a light reflecting face and provided with a white light reflecting layer, and the upper side face of each prism structure is a light absorbing face and provided with a black light absorbing coating; and the prism structures are bent in an arc shape with the midpoint of the lower long edge of the outer surface of the base material layer as the circle center, and the multiple prism structures of the prism structure array are continuously arranged in a concentric circle structure.The effect similar to that of a Fresnel light-resistant curtain is achieved in an arc-shaped black gate mode, the cost is lower than that of the Fresnel light-resistant curtain, and the display effectis good.

The invention belongs to the technical field of light source simulation, and discloses a device for simulating a light-transmitting irradiation skylight environment for a house roof. The device comprises a supporting frame, wherein a surrounding plate is fixedly installed on the periphery of the supporting frame, a light absorption dark room and a heat dissipation room are formed in the left end and the right end of the interior of the surrounding plate respectively, a collecting lens is fixedly installed in the middle of the left end of the interior of the heat dissipation room, and a white light source is fixedly installed on the right side of the collecting lens. According to the device, by arranging the light absorption dark room, a window assembly, the white light source and the like, the purposes of good sunlight simulation effect and low manufacturing cost are achieved, the white light source emits white light and then irradiates the surface of a reflector through pretreatment of a collimating collecting lens, the reflector projects the light source to an area of the window assembly at the moment, after layer-by-layer treatment of an internal structure of the window assembly, parallel light is emitted and thrown into the room, and a blue light source emits blue light and forms soft blue scattered light after scattering treatment of nano-scale particles.

The invention discloses a variable grating micro-signal separation device and a manufacturing method thereof. The separation device comprises a capillary tube, an excitation light source and a signalreceiver. The capillary tube is located between the excitation light source and the signal receiver, a grating sleeve is arranged on the outer surface of the capillary tube, and the grating sleeve ismade of a light absorption material. The number of the grating sleeves is two, the grating sleeves are respectively a first grating sleeve and a second grating sleeve, a gap is formed between the first grating sleeve and the second grating sleeve, and the width of the gap is greater than or equal to the size of a single to-be-detected substance particle in a capillary tube and is smaller than thesizes of two to-be-detected substance particles. One end, far away from the gap, of each of the first grating sleeve and the second grating sleeve extends out of an area covered by the light receivinglens on the capillary tube. The manufacturing method of the separating device is characterized in that a gap is formed between the first grating sleeve and the second grating sleeve by means of a gapgenerator. According to the invention, superposition of signals in a to-be-detected sample can be effectively reduced, and the detection accuracy is improved.

The invention discloses a light capture and three-dimensional control device for light absorption particles in air based on hollow light. The device comprises a laser, a hollow light generation unit and a polarizing beam splitter which are arranged in sequence; the device further comprises an illumination unit, a transverse capture unit and a vertical capture unit; the transverse capture unit comprises a first deflection mirror, and the vertical capture unit comprises a second deflection mirror. Through the first deflection mirror and the second deflection mirror which are rotatably arranged in the transverse capture unit and the vertical capture unit respectively, captured particles can rotate in a transverse plane and a vertical plane which are perpendicular to the propagation direction of captured laser in a two-dimensional manner, and the rotation direction is controllable; the problem that the rotation direction of light absorption particles cannot be controlled under low capturing power when the light absorption particles in air are captured in the prior art is solved; and in addition, the hollow light is adopted to capture the light absorption particles, and the capture power can be as low as 25mW, so that the problem that the light energy captured by the particles in the two-dimensional rotation process is too high is solved.

The invention relates to a light absorption material constructed by A and X site coordinated regulation as well as a preparation method and application thereof. The light absorption material is halogen perovskite with a cubic phase structure, and the chemical formula of the light absorption material is AyA '1-yBXzX' 3-z, wherein A is CH3NH < 3 + >, A'is at least one of (NH2) 2CH < + >, (CH3) 2NH2 < + >, (CH3) 3NH < + >, (CH3CH2) NH3 < + > and (CH3CH2) 2NH2 < + >, B is at least one of Sn < 2 + >, Sr < 2 + > and Ca < 2 + > and Pb < 2 + > or Pb < 2 + >, X is I-, X'is at least one of SCN <->, BF4 <->, HCOO <-> and CN <->, y is larger than or equal to 0.7 and smaller than 1.0, and z is larger than or equal to 2.5 and is smaller than 3.0.

The invention discloses a backlight source comprising a light-emitting body (140), a supporting frame (110) and an optical assembly (120). The light-emitting body (140) is arranged at one side of theoptical assembly (120). The optical assembly (120) consists of a light guide plate (121), a diffusion sheet (122) and a brightness enhancement film which are sequentially stacked in the supporting frame (110). The light-emitting body (140) is arrange at the side surface of the light guide plate (121); an avoidance hole (A) is formed in the optical assembly (120) in the thickness direction in a communication manner; and a shooting hole (B) is defined in the part, in the avoidance hole (A), of the supporting frame (110). The light guide plate (121) includes surface for forming the hole wall of the avoidance hole (A); an area, away from the light-emitting body (140), of the surface is a diffuse reflection area; or a light absorption layer (150) is attached to the area, away from the light-emitting body (140), of the surface. Therefore, a problem that light leakage exists in a backlight source hole of the existing electronic device can be solved. In addition, the invention discloses an electronic device.

A light path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed below the second substrate; a light conversion unit disposed between the first electrode and the second electrode; and a power supply unit connected to the first electrode and the second electrode, wherein the light conversion unit includes a partition wall part and a receiving part that are alternately arranged, the receiving part has a light transmittance that changes in response to the application of a voltage, the receiving part includes a dispersion liquid and a plurality of light absorbing particles dispersed in the dispersion liquid, the height of the receiving part is 15 μm to 25 μm, the width of the receiving part is 1.5 μm to 2.5 μm, and the power supply unit includes a power connection part connecting an external power source and the light conversion unit, and a power switch part for turning on / off the transmission of the voltage.

The invention provides a projection screen and a processing method thereof, wherein the projection screen sequentially includes a diffusion layer, a microlens array and a base material from the projection light incident side, the inside of the base material is provided with a Fresnel microstructure, and the Fresnel A reflective layer is arranged on the surface of the microstructure, and the rest of the surface is a light-absorbing layer; the microlens array is used to focus the projected light on the reflective layer, and the reflective layer is used to reflect the projected light back to the viewer's field of view. Most of the light is absorbed by the light-absorbing layer. In the present invention, by setting the structure and size of the microlens array, the projection light is only incident on the reflective layer of the microstructure, and most of the ambient light is absorbed by the light-absorbing layer, thereby improving the light utilization rate of the screen and the ability to resist ambient light; The reflectivity of the screen does not reduce the reflectivity of the projector, so that the reflective screen has high gain and high contrast; it is suitable for ultra-short-throw projectors and ensures that the screen has better visual effects.

The invention discloses a gas pool parameter design method and device based on an absorption spectrophotometry and a detection system. The method comprises the following steps: determining a first relationship between received light energy of a detector and output light energy of a light source according to a first reflectivity of a first endoscope, a second reflectivity of a second endoscope andloss in a gas pool cavity; according to the Lambert-Beer law, determining a second relationship among the loss in the gas pool cavity, the gas concentration, the extinction coefficient and the lengthof the gas pool cavity; determining a third relationship among the gas concentration, the first reflectivity, the second reflectivity and the transmittance according to the first relationship and thesecond relationship, wherein the transmittance is determined according to output light energy and received light energy; calculating a multiplication factor and a matched light power factor of the light path according to the second relationship and the third relationship; and determining gas pool parameters according to a preset detection requirement, the multiplication factor of the optical pathand the matched light power factor. By implementing the method, an optimized gas pool parameter design scheme can be obtained, and the problem of parameter design of the absorption gas pool can be effectively solved.

The invention discloses a television backlight film and a manufacturing process thereof. The invention relates to the technical field of television backlight films. The television backlight film comprises a substrate, the television comprises a television surface shell and a backboard, a middle frame is installed below the television face shell, a first membrane is installed below the middle frame, a second membrane is installed below the first membrane, a diffusion plate is installed below the second membrane, a light bar is installed below the diffusion plate, a reflector plate is installedbelow the light bar, and the backboard is located below the reflector plate. The invention discloses a reflector plate structure of a television backlight film. Holes are punched in the edges and broken lines are increased; the backlight module is assembled on backlight, light refraction is removed through fold line change, light is emitted out through punching, the light absorption effect is equivalent to the effect of light absorption, refraction of the edge and the light reflection amount are changed, and therefore obvious bright edges and dark edges do not appear on the edge of the backlight, and the effects that the whole picture is high in uniformity and free of dark width and bright edges are achieved.

The invention discloses a pulse width frequency modulation light-driven sound wave emitter and a modulation method. The pulse width frequency modulation light-driven sound wave emitter comprises a continuous light source, a spatial light modulator and a light absorption film. The spatial light modulator changes spatial distribution of continuous light emitted by the continuous light source, so that the continuous light is partially irradiated to the light absorption film, and the light absorption film absorbs light energy of the continuous light irradiated to the light absorption film, generates a photoacoustic effect and excites sound waves. The continuous laser generated by the continuous light source is subjected to pulse width modulation in a delayed manner by controlling a switch of the spatial light modulator, and a plurality of sound waves with different frequencies and phased array sound emission are generated in different areas of the space. The phased array continuous sound wave emission system is simple in structure and good in realizability, sound waves with flexible and adjustable frequency and space distribution can be generated, and the requirements for sound wave frequency and space sound field distribution in different applications are met.

The invention discloses a three-dimensional organic light-emitting integrated circuit and an imaging method and relates to the field of broadcast televisions, computer image processing and integratedcircuits, and aims to solve the problem that an existing three-dimensional image is limited in a display device and cannot be shielded due to transparent space. The three-dimensional organic light-emitting integrated circuit comprises a convex lens, a synchronous diaphragm, a three-dimensional light-emitting body and a light absorption shell which are sequentially arranged along a main optical axis; the convex lens is a plano-convex lens; the plane of the plano-convex lens is connected with the synchronous diaphragm; the three-dimensional light-emitting body is arranged in the light absorptionshell and connected with the synchronous diaphragm; the two sides of the opening end of the light absorption shell are connected with the synchronous diaphragm through light-transmitting glue; the plano-convex lens is larger than the inner edge of the opening end of the light absorption shell; and all gaps among the convex lens, the synchronous diaphragm, the three-dimensional light-emitting bodyand the light absorption shell are filled with light-transmitting glue. According to the imaging method, a naked eye three-dimensional display device can be manufactured, and a three-dimensional object with a real visual angle can be dynamically displayed in the air.