1317 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.

An image sensing device includes a first photoelectric conversion element configured to overlap a left region of a first microlens, a second photoelectric conversion element configured to overlap a right region of the first microlens, a first floating diffusion region configured to accumulate photocharges received from at least one of the first photoelectric conversion element and the second photoelectric conversion element, a first transfer gate disposed at a top-left side of the first floating diffusion region and configured to transfer photocharges of the first photoelectric conversion element to the first floating diffusion region, and a second transfer gate disposed at a bottom-right side of the first floating diffusion region and configured to transfer photocharges of the second photoelectric conversion element to the first floating diffusion region.

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 belongs to the technical field of glasses, and discloses a pair of out-of-focus glasses for treating hyperopia, which comprises hyperopia out-of-focus glasses lenses, the hyperopia out-of-focus glasses lenses are convex lenses, a central vision far optical area is arranged at the circle center of each convex lens, hyperopia out-of-focus micro lenses are uniformly distributed on the periphery of each central vision far optical area, and the micro lenses are arranged in the central vision far optical area. Peripheral micro-concave lenses are added on the basis of previous hyperopia glasses, so that an object image forms hyperopia defocus on peripheral retina, after the peripheral retina recognizes a hyperopia defocus signal, in order to form a clear object image on the retina, eyeballs can start a sclera and choroid compensation mechanism by the brain, abnormal growth of the eyeballs is caused, and the hyperopia defocus effect is improved. And the speed of reducing the hyperopia degree is further increased.

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 invention discloses a micron-sized lens array machining device and method based on a micro-forming tool, and relates to the technical field of micron-sized lens array machining, the micron-sized lens array machining device comprises an ultra-precision machine tool with a Y axis, a lifting tool rest and an arc tool, a vacuum chuck on the Y axis of the ultra-precision machine tool is used for installing a workpiece, and the lifting tool rest is used for installing the arc tool; the lifting tool rest can drive the arc tool to ascend and descend in the Y direction and enable the arc tool to machine the surface of a workpiece to form a micro-lens unit, and the ultra-precision machine tool can drive the workpiece to move in the X direction, the Y direction and the Z direction relative to the arc tool and enable the arc tool to machine the surface of the workpiece to form a micro-lens array. And the radius of a cutting edge of the arc cutter is equal to the curvature radius of the micro-lens unit. According to the invention, high-quality and high-uniformity micron-sized lens array processing 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.

The utility model discloses a lens for correcting hyperopia defocus and providing local defocus optical signal stimulation, which comprises an annular focal plane substrate and a defocus signal stimulation area, the defocus signal stimulation area is positioned on the surface of the annular focal plane substrate, and an optical refraction area of the annular focal plane substrate comprises a central equal diopter area, a middle correction area and an edge foot correction area; the out-of-focus signal stimulation area is composed of micro-lens structures which are distributed in an annular mode. The utility model has the beneficial effects that the ring focus curved surface is adopted to correct the hyperopia defocus, the harm of the hyperopia defocus to the deepening of the myopia of human eyes is relieved, and meanwhile, the edge position of the lens is fully corrected, so that the observation of the human eyes is clearer; the out-of-focus signal stimulation area can provide positive or negative out-of-focus optical signal stimulation and is used for stimulating the forward or backward movement trend of the retina, four types of out-of-focus amounts are adapted according to human eye adjusting force, more people are adapted, and myopia can be managed more effectively.

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 belongs to the technical field of optical devices, and provides a single photon avalanche diode array, a receiving sensor and a laser radar, at least two SPAD units are arranged in an array, a microlens converges incident light to the corresponding SPAD unit, a back metal grid connects the SPAD unit and a corresponding external electrode, a first dielectric layer is arranged between the microlens and the SPAD unit, and a second dielectric layer is arranged between the microlens and the SPAD unit. The second dielectric layer is arranged between the SPAD units and the front metal wiring layer, and the front metal wiring layer is electrically connected with the corresponding SPAD units through contact metal wires. The deep groove isolation columns are arranged between the adjacent SPAD units, and the metal filling structures are arranged between the deep groove isolation columns and the back metal grids, so that self-excitation photons generated when the SPAD units are excited by incident light can be isolated, the self-excitation photons are prevented from entering the adjacent SPAD units through grid gaps, the probability of photon crosstalk is reduced, and the optical crosstalk of the device is reduced.

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.

Provided is an electronic device including a camera module configured to sense an object based on a plurality of photoelectric conversion elements and generate stereo image data having a disparity based on at least two of the plurality of photoelectric conversion elements sharing a micro lens, a memory configured to store at least one instruction and the stereo image data, and a processing circuit configured to execute the at least one instruction to detect an object of interest based on the stereo image data, and generate a crop signal for instructing the camera module to sense a region of interest including the object of interest; and generate depth information based on the stereo image data.

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.

A method of machining a mold for a microlens array, wherein for a surface of the mold corresponding to a microlens surface, an xyz coordinate system is defined such that a z-axis is parallel to the central axis of the surface, an angle φ is defined as an angle around a straight line passing through a point on the rotation axis and parallel to the z-axis, of a plane containing the rotation axis of a cutting tool and the straight line, in machining of a surface of the mold, the angle φ is kept constant and in machining of the surfaces of the mold, values of the angle φ for the surfaces of the mold are distributed so as to make variance of the values of the angle φ greater than a predetermined value.

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 invention relates to the technical field of wavelength division multiplexers, and discloses a 250 [mu] m spacing CWDM-BLOCK manufacturing method based on ultrathin optical filters, and the method comprises the steps: designing and preparing CWDM optical filters, and carrying out the cutting and testing, so as to enable the four optical filters to be arranged in a row in advance; a micro lens is designed and prepared, the spherical surface is plated with an air antireflection film, and the plane end is plated with an adhesive antireflection film; the method comprises the following steps: setting and preparing a glass substrate, polishing two surfaces of the glass substrate, and manufacturing alignment positioning marks on the two surfaces of the glass substrate according to set size intervals; plating a high-reflection film with a gap on one surface of the glass substrate; performing CWDM optical filter group surface mounting on the surface, which is not plated with the high-reflection film, of the glass substrate; pasting a micro lens on the surface plated with the high-reflection film; and cutting is carried out from the position of the alignment positioning mark to obtain a complete CWDM-BLOCK with a collimating lens and a distance of 250 [mu] m. According to the method, mass production and manufacturing of 250-micron CWDM-BLOCK can be achieved, the method is suitable for assembling operation through automatic equipment, the assembling and testing efficiency is greatly improved, and the method is suitable for large-scale manufacturing.

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.