1084 results about "Microlens" patented technology

The invention provides a seed packaging bag AI intelligent anti-fake traceability management system and method, and relates to the field of household kitchens. The AI intelligent anti-fake traceability management system for the seed packaging bag comprises an intelligent anti-fake packaging bag which is provided with a natural random physical texture layer, a dynamic optical structure layer covering the natural random physical texture layer and an encrypted identifier storing a digital identity (DID), and the microstructure of the natural random physical texture layer forms a uniqueness feature which cannot be copied. The dynamic optical structure layer generates a variable optical effect during physical interaction. Unique biological fingerprints are formed through microcosmic random textures of a packaging base material, the optical variable effect of a microlens array is overlaid, each packaging bag has the unclonability of the physical level, and in combination with dynamic comparison of a multi-mode AI engine on real-time texture features and block chain anchoring initial values and optical living body frequency analysis, the non-clonability of the packaging bag is improved. And a three-dimensional verification closed loop which is difficult to break by a counterfeiter is realized.

The invention discloses a method for improving the heat dissipation performance of an AlGaInP red light Micro LED chip. The method comprises the following steps: S1, preparing an epitaxial structure: processing a substrate and a buffer layer, growing an etching barrier layer and an ohmic contact layer, and carrying out stacking epitaxy on a functional layer; s2, patterning the silicon-based substrate: preparing a dielectric layer and a metal structure; s3, diamond ohmic contact layer integration: processing a p-type conductive diamond film layer, and carrying out metal reflection and bonding; s4, removing the substrate and forming an n-type structure: stripping the substrate to be in n-type contact; s5, back-end process integration: preparing an electrode and an optical structure; according to the invention, the heat dissipation performance of the chip is significantly improved; the series resistance is reduced by 30%-50%; the resistivity of the p / n type diamond ohmic contact layer is reduced by 1-2 orders of magnitude compared with ITO; gaAs material light absorption and metal shading are avoided, and the red light transmittance is improved from 75% to more than 90% by combining with the micro lens array; the method is compatible with existing MOCVD, CVD and photoetching processes, large-scale production of wafers of 2-12 inches can be achieved, and the manufacturing cost is reduced.

The invention discloses a multi-effect ultrastructure composite lens for preventing and delaying myopia, which comprises a lens main body, a functional area is arranged in the lens main body, and the functional area comprises a central optical correction area and an ultrastructure area which are arranged on the inner side. Compared with the prior art, the method has the advantages that the small central optical area is adopted to correct vision, and the prevention and control effect is enhanced. The ultramicro soft light area has prevention and control and visual transition effects. The ultra-micro lenses and the ultra-micro structure ring cylindrical lenses are alternately arranged on the outer side, due to the fact that the area is reduced, the number of the ultra-micro structures in the unit area is increased, the filling rate of the functional area of the whole lens is increased, the ultra-micro structures enable the brain to be not easy to perceive, visual perception is not easy to interfere, and the three ultra-micro structures have the effect of improving visual activity along with eyeball movement of visual activity. Signals entering the eyes are kept in dynamic change all the time, so that the visual experience is further improved while the prevention and control effect and imaging intervention are guaranteed, and long-term wearing is facilitated.

The invention provides a preparation method of a barrier type antimonide infrared detector. The preparation method comprises the following steps: selecting a gallium antimonide substrate; a gallium antimonide buffer layer, an indium arsenide heavily-doped layer, a class II superlattice absorption layer and an aluminum-arsenic-antimony barrier layer are sequentially grown on the substrate in an epitaxial mode through a molecular beam epitaxy method; mechanically stripping the hexagonal boron nitride two-dimensional material, and transferring the stripped hexagonal boron nitride to the aluminum-arsenic-antimony barrier layer to form a Van der Waals heterojunction and composite barrier layer structure; depositing electrodes by using an ultraviolet lithography technology and a thermal evaporation mode to form one electrode arranged on the gallium antimonide buffer layer and the other electrode arranged on the boron nitride; a large-numerical-aperture micro-lens array is processed on a substrate, and the micro-lens array is composed of gallium antimonide cylinders with a phase modulation function; therefore, the antimonide medium-wave infrared detector with the composite barrier layer can be formed, the quantum efficiency is improved, the order of magnitude of dark current is reduced, and room-temperature medium-wave infrared detection can be realized.

The utility model discloses a lens for delaying eye axis growth by using a negative defocus technology, particularly relates to the field of optical spectacle lenses, and aims to solve the problems that myopia of children and adolescents in China is severe, low-age and severe, existing common methods include angle molding, defocus and foggy vision (point diffusion), and the prevention and control efficiency is declined due to the large use of the methods. According to the utility model, myopia can be better prevented and controlled, and the prevention and control efficiency is improved. A composite ring belt design is adopted, the defocusing amount of an aspheric micro lens in a composite ring belt structure is negative defocusing, and the range of the defocusing amount of the aspheric micro lens is-5.0 D-(-6.5 D). While clear vision correction is ensured in an optical central area, the defocusing amount of a ring belt outside the central area is in an asymptotically increasing trend, so that continuous defocusing is formed in a peripheral area, and the visual acuity is improved. And personalized compensation is carried out on the defocusing amount of the field angle to form a continuous myopia defocusing state, so that excessive increase of the ocular axis and the diopter is delayed, and the purpose of controlling myopia is achieved.

Disclosed is a wearable electronic device. The wearable electronic device includes: a display module comprising a display; a housing to which the display module is coupled; and a projection display disposed on a side portion of the housing and configured to display information on a display area adjacent to the housing, the projection display may include: a substrate disposed along a mounting surface provided on a side portion of the housing; a plurality of light-emitting devices comprising light-emitting circuitry disposed on the substrate in a grating arrangement; and a plurality of micro-lenses covering a light-emitting surface of the plurality of light-emitting devices.

The invention provides a three-dimensional imaging method and device based on an endoscope and electronic equipment. The method comprises the steps that multiple sub-aperture images obtained after the same light path passes through multiple micro lenses located on the same plane are obtained; classifying the corresponding sub-aperture images into a left sub-image set and a right sub-image set according to the positions of the micro-lenses; generating a corresponding first depth image and a corresponding second depth image based on the left sub-image set and the right sub-image set respectively; and generating a target three-dimensional image according to the first depth image and the second depth image. According to the invention, a clear target three-dimensional image can be obtained based on micro-lens simulation binocular imaging.

A display panel and a method of manufacturing the same are provided. The display panel comprises: a substrate; the at least one sub-pixel is arranged on the substrate, the sub-pixel comprises a light-emitting unit, the light-emitting unit is provided with a first electrode, a second electrode and a light-emitting layer located between the first electrode and the second electrode, and the first electrode is located between the light-emitting layer and the substrate; the packaging layer covers the light emitting unit; the color film is positioned on one side, far away from the substrate, of the packaging layer; the micro lens is positioned on one side, far away from the substrate, of the color film; wherein the surface, far away from one side of the substrate, of the micro lens comprises a central part and an edge part surrounding the central part, the central part is a plane parallel to the substrate, and the edge part is a cambered surface protruding from the inside of the micro lens to the outside. And the roughness of the central part is greater than that of the edge part.

An image sensor includes a substrate the substrate including a plurality of unit pixels arranged in a direction parallel to a first direction; a first and second photodiode inside of the substrate in each of the plurality of unit pixels and separated from each other in a second direction, perpendicular to the first direction; and a device isolation film between the plurality of unit pixels. A pair of pixels side-by-side in a third direction, perpendicular to the first and second direction, among the plurality of unit pixels, share a microlens, and at least one of the plurality of unit pixels includes a light shielding film on the substrate. Accordingly, in the image sensor, while maintaining the existing photodiode forming process, the autofocusing function in a vertical direction may be supplemented, and further, performance of the image sensor may be improved.

The invention discloses a Micro LED chip and a preparation method thereof. The Micro LED chip comprises a driving panel; the plurality of LED units are arranged on the driving panel in an array; the grid structure is arranged around the plurality of LED units to form a plurality of grid holes arranged in an array; the micro lenses are arranged in the grid holes, and the surfaces of the sides, facing the LED units, of the micro lenses are condensation convex surfaces; light emitted by the LED unit can be emitted out from the side, away from the LED unit, of the micro lens after passing through the condensation convex face. According to the Micro LED chip, the micro lens is formed on the LED unit, and the micro lens is provided with the condensation convex surface facing the LED unit, so that the light emitted by the LED unit can be effectively collected after passing through the condensation convex surface, the light emitting amount of the light emitted from the side, deviating from the LED unit, of the micro lens is improved, and the high efficiency and stability of full-color display of the Micro LED chip are improved.

An image sensor including a substrate having first and second surfaces, the second surface opposite the first surface; a first deep trench isolation layer in the substrate and defining pixel region groups, each pixel region group having a pair of pixel regions; a second deep trench isolation layer between the pair of pixel regions of each pixel region group; photoelectric conversion areas in each pixel region; and a lens array on the second surface and composed of two-dimensionally arranged microlenses. Each microlens having a shape, in plan view, with a long axis and a short axis, the short axis being substantially perpendicular to the long axis and shorter than the long axis. The microlenses covering each pixel region group, and a width of at least a first portion of the second deep trench isolation layer being smaller than a width of the first deep trench isolation layer.

The invention relates to a structure for improving the light extraction efficiency of a Micro-LED and a manufacturing method, and the structure comprises a basic function layer, a micro-lens optical regulation and control layer and a micro-nano secondary structure which are sequentially arranged from bottom to top, and the micro-lens optical regulation and control layer and the micro-nano secondary structure form a core optical function unit; the micro-lens optical regulation and control layer is a tightly-arranged hemispherical micro-lens array, the bottom face of each micro-lens is a circular plane completely attached to the top end of the basic function layer, the micro-nano secondary structure is located on the outer spherical face of the micro-lens optical regulation and control layer, and the micro-nano secondary structure and the hemispherical curved face of the micro-lens optical regulation and control layer form a sawtooth-shaped protruding array. The height direction of the sawtooth-shaped protrusions always extends in the spherical surface normal direction of the position where the sawtooth-shaped protrusions are located, a micro lens and a micro-nano secondary structure are designed on the Micro-LED device in an integrated mode, Micro-LED emergent light beams are shaped, the proportion of front emergent light beams is increased, the divergence angle is reduced, meanwhile, the light extraction efficiency can be improved, and the performance limit of the Micro-LED device is broken through.

The present disclosure relates to an image sensor and / or a method for manufacturing the same. The image sensor may include a substrate including a first surface, a second surface opposite the first surface, and a plurality of unit pixel regions in the substrate; a pixel defining pattern; and a micro lens. Each of the plurality of unit pixel regions may include a photoelectric conversion layer. The pixel defining pattern may extend through the substrate in a first direction so as to define each of the unit pixel regions. The micro lens may be on the second surface of the substrate and corresponding to the unit pixel regions. The pixel defining pattern may include a first conductive layer and a second conductive layer spaced apart from the first conductive layer.

An example system includes a first steering layer interposed between an electromagnetic (EM) source and an emission lens. The first steering layer includes a triplet lens having a Plano-convex lens, a Plano-concave lens, and an electro-optical (EO) crystal positioned between the lenses. The EO crystal includes transparent electrodes on each side, coupled to the respective lenslet and / or the EO crystal. The system includes the EM source providing an incident EM beam on the first steering layer, and the emission lens emitting a steered EM beam to a target location.

An image sensor including a substrate, first pixels in a first pixel group sharing a first micro-lens; second pixels in a second pixel group sharing a second micro-lens; a first pixel isolation pattern surrounding the first pixels; a second pixel isolation pattern surrounding the second pixels; a first guide pattern between the substrate and the first micro-lens and partially overlapping the first pixel isolation pattern; a second guide pattern between the substrate and the first micro-lens and extending toward a central portion; a third guide pattern between the substrate and the second micro-lens and partially overlapping the second pixel isolation pattern; and a fourth guide pattern between the substrate and the second micro-lens and extending toward a central portion. The width of the second guide pattern in the extension direction of the second guide pattern and the width of the fourth guide pattern in the extension direction are different.

The invention discloses a Shack-Hartmann wavefront detector centroid calculation method and related equipment, and relates to the field of optical measurement, and the method comprises the steps: obtaining a light spot array grayscale image, detecting the local maximum value of each light spot, and dividing sub-aperture image regions corresponding to micro lenses one by one according to the local maximum value; extracting a gray matrix of each sub-aperture image region, respectively determining one-dimensional regions of a light spot main lobe in row and column directions, and intersecting to obtain a main lobe region; a main lobe area is deducted from the sub-aperture image area to form a threshold calculation area, and the maximum gray value of the threshold calculation area is selected as a threshold; and performing threshold reduction on pixels in the sub-aperture image area, setting a negative value to zero, and calculating the position of the mass center of the light spot based on the processed image. According to the method, sub-aperture adaptive threshold and local background removal are realized, weak light spot information loss caused by a unified threshold is avoided, and the precision of centroid calculation and wavefront restoration is improved.

The present embodiment relates to a light-emitting module comprising: a substrate; a light source which is arranged on the substrate and emits laser light; a holder arranged on the substrate; a diffuser lens arranged in the holder and over the light source; and a diffuser ring for supporting the diffuser lens, wherein the diffuser lens comprises a plurality of microlenses, and the holder comprises an opening formed above the diffuser lens and a stopping protrusion for inhibiting the diffuser lens from being separated through the opening.

The invention provides an out-of-focus lens microlens diopter measurement method, system, medium and device, and relates to the technical field of optical measurement, and the method comprises the steps: placing a to-be-measured out-of-focus lens on a rotary table; controlling a Z-axis motion guide rail to drive a line measurement sensor to move, and determining a path scanning zero point; the rotary table is controlled to rotate at a constant speed, and the X-axis movement guide rail and the Z-axis movement guide rail drive the line measurement sensor to move so as to obtain point cloud data of the upper surface of the to-be-measured out-of-focus lens; performing conversion, fitting and data extraction on the point cloud data to obtain a two-dimensional profile curve of each micro lens unit included in the to-be-measured defocus lens; and calculating the diopter of each micro-lens unit according to the two-dimensional profile curve of each micro-lens unit. According to the method, independent quantitative evaluation of the additional diopter of the microstructure is realized, and the defects that the macroscopic diopter and the microstructure diopter cannot be separated by a lensometer and the macroscopic diopter and the microstructure diopter are difficult to accurately disassemble in an existing non-contact technology are overcome.

An optical sensor and included pixel circuits of an array of pixel circuits are described. Each pixel circuit may include a microlens, a color filter disposed adjacent the microlens, and an epitaxial substrate layer disposed adjacent the color filter opposite the microlens. An isolation trench may be formed in the epitaxial substrate layer to provide a trench capacitor for the pixel circuit, and having sidewalls with sidewall recesses formed therein that increase a surface area, and therefore a capacitance, of the trench capacitor.

Designs of image sensing devices by including a substrate layer including a plurality of photoelectric conversion elements, a plurality of grid structures disposed over the substrate layer, a plurality of color filter layers each of which is disposed between adjacent grid structures, a plurality of over-coating layers formed over the color filter layers, and a plurality of microlenses formed over the over-coating layers. Each of the grid structures includes an air layer, and a capping film formed to cap the air layer, and an upper portion of the air layer is formed to protrude upward from the over-coating layer.

A lens element intended to be worn in front of an eye of a wearer, the lens element comprising:-a holder, and-a plurality of optical elements superimposed on the holder, each optical element simultaneously provides a first optical function based on a prescription of the wearer for correcting refractive abnormalities of the eye and a second optical function that does not focus an image on the retina of the eye, characterized in that each optical element comprises a central region and a plurality of outer regions surrounding the central region, a maximum height of the central region is smaller than a maximum height of the outer region.

The present invention relates to a micro light emitting diode chip and a display panel, the micro light emitting diode chip comprising: a micro light emitting diode array including a plurality of micro light emitting diodes configured to emit light; and a microlens disposed over the micro light emitting diodes, where adjacent microlenses are spaced apart from each other between the micro light emitting diodes. According to the micro light-emitting diode chip provided by the invention, the current expansion structure is arranged between the micro light-emitting diodes, so that light crosstalk of adjacent micro light-emitting diodes can be avoided; the micro lens can gather light emitted by the micro light-emitting diode, so that the luminance and the luminous efficiency of the micro light-emitting diode display chip are improved.

The invention relates to a hundred-nanoscale particle sorting control chip and device and a sorting control method, the chip comprises a micro lens, a micro-fluidic channel, a sorting outlet and a sorting inlet, the sorting outlet is a two-fork opening, and the sorting inlet is a three-fork opening and comprises a sample inflow opening and two focusing inflow openings; the sorting inlets and the sorting outlets are formed in the two ends of the micro-fluidic channel respectively, and the micro-lens is arranged at the intersection of the two sorting outlets. The device comprises a chip, a light source, an injection device and an observation platform, light emitted by the light source penetrates through a micro lens and irradiates into a micro-fluidic channel, light force is applied to particles in fluid to be sorted, the particles of different sizes enter different sorting outlets, and finally sorting is achieved. Compared with the prior art, the particle sorting device can realize quick sorting of particles with the diameter of hundreds of nanometers, has the advantages of high sorting efficiency, high control precision and the like, and has important application value in sorting and control of micro-nano-scale particles such as viruses, bacteria and the like.

A photodetector according to one embodiment of the present disclosure includes: a semiconductor substrate having a first surface and a second surface opposed to each other, and including a plurality of pixels and a photoelectric converter, the plurality of pixels arranged in a matrix, and the photoelectric converter that is formed for each of the pixels to be embedded in the semiconductor substrate, and generates an electric charge corresponding to an amount of received light by photoelectric conversion; a microlens disposed on side of the first surface to extend over adjacent pixels of the plurality of pixels; and a plurality of scatterers having different indices, the plurality of scatterers stacked in a collection optical path of the microlens.

The invention provides a coupling system for an on-chip light source and a photon chip. The coupling system comprises an input light source, a collimating lens, a focusing lens, a reflecting prism and an on-chip grating which are sequentially arranged in the direction of a light path, and an optical waveguide located on the side face of the on-chip grating. The collimating lens is used for primarily shaping emergent light of an input light source into a collimated light beam, the focusing lens is used for focusing the collimated light beam to the on-chip grating, and the collimating lens and the focusing lens are both aspheric plano-convex lenses. According to the system, non-uniformity caused by a large divergence angle of the semiconductor laser is effectively corrected through the aspheric micro lens, output of approximately parallel light beams is achieved, the light beams are accurately focused to the photon chip grating through the aspheric focusing lens subsequently, the coupling efficiency of light energy is greatly improved, and compared with two cylindrical lenses in the prior art, the coupling efficiency of light energy is greatly improved. The design of the focusing lens and the reflector is added, so that the number of optical elements is reduced, and error accumulation is reduced.

The invention provides a light emitting device, a light detection device and a laser radar. The light emitting device comprises a laser array comprising a plurality of lasers, the plurality of lasers are arranged in a linear array or an area array, the lasers in the laser array are configured to output emission signals, and the emission signals are transmitted along an emission light path; the first optical assembly is arranged on the emission light path and configured with an equivalent focal length larger than a first preset value, the first optical assembly comprises a first main lens group unit and a first micro lens group unit, and the first preset value is the focal length of the first main lens group unit; wherein the equivalent focal length of the first optical assembly is M times, Mgt, of the focal length of the first main lens group unit; 1; the first micro lens group unit is arranged between the laser array and the first main lens group unit. The power density in the point cloud field angle area is improved through the arrangement of the first optical assembly of the light emitting device, and the background light noise power in the point cloud field angle area is reduced based on the arrangement of the second optical assembly of the light detection device, so that the distance measurement capability of the radar is improved.

Acoustic sensors with one or more microlens structures, as well as methods for fabricating and operating such acoustic sensor systems are disclosed. In some embodiments, an apparatus may include: an acoustic sensing element; a display stack; a first layer of material having a first acoustic refractive index and one or more microlens structures disposed at a first surface of the first layer of material; and a second layer of material disposed on the first layer of material and the one or more microlens structures, the second layer of material having a second acoustic refractive index that is different from the first acoustic refractive index. The one or more microlens structures may be configured to form a focused pressure wave from one or more acoustic signals emitted by the acoustic sensing element.

A method includes forming sacrificial blocks on a substrate, reflowing the sacrificial blocks, performing a first etching process to etch both of the sacrificial blocks and the substrate until parts of the substrate that are etched to form micro lenses, forming a patterned etching mask, and performing a second etching process to etch the substrate. At a time after both of the first etching process and the second etching process have been performed, the micro lenses are in recesses of the substrate.

The invention provides an image sensor pixel unit with a polarization response characteristic light trapping structure and a preparation method of the image sensor pixel unit. The image sensor pixel unit comprises a semiconductor substrate, a multi-layer structure arranged on the substrate and a polarization response unit. The multi-layer structure comprises an anti-reflection layer, a filling and leveling layer and a micro-lens layer. The polarization response unit adopts an all-dielectric sub-wavelength grating based on a backscattering technology, and the polarization response unit and the deep trench isolation structure are synchronously formed by adopting the same process, so that photoelectric isolation between pixels is realized, and a polarization selection function is also realized. The anti-reflection layer is a multi-layer dielectric film stack, and interface reflection is effectively restrained. By optimizing the design of a polarization selection-transmission-convergence cooperative structure, polarization selection and light enhancement functions are integrated, an all-dielectric material system is adopted to be completely compatible with a CMOS (complementary metal oxide semiconductor) process, and quantum efficiency is remarkably improved while high-efficiency polarization detection is realized.

The invention provides a laser pulse width broadening device and a laser system. The laser pulse width broadening device comprises a first lens array, a plurality of optical fibers with different lengths, a second lens array and a focusing lens, the plurality of optical fibers with different lengths have the same incident plane and emergent plane; the first lens array divides the laser beam; the segmented laser beams are respectively transmitted in a plurality of optical fibers with different lengths, and the plurality of optical fibers with different lengths respectively emit a plurality of light beams with different delays based on the optical path difference of the plurality of optical fibers with different lengths; the second lens array collimates a plurality of light beams with different delays; and a plurality of light beams with different delays pass through the focusing lens and then are superposed to obtain uniformly distributed light beams with target sizes. The lens array can be used for segmenting light beams and coupling the light beams into optical fibers to improve the utilization rate of the light beams. The pulse width is broadened by using the optical path difference of the optical fibers with different lengths; the micro-lens array is used for collimating the light beams, the focusing lens is used for overlapping the light spots, small light spots are formed, and follow-up shaping and light beam coupling are facilitated.