177results about How to "With ultra-thin" patented technology

The invention discloses an optical imaging camera lens. The camera lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence from the object side to the image side along the optical axis. The first lens has positive focal power, and the object side is the convex side; the second lens has negative focal power;the second lens has positive focal power; the fourth lens has positive focal power or negative focal power, the object side is the concave side, and the image side is the convex side; the fifth lens has positive focal power or negative focal power; the sixth lens has positive focal power or negative focal power, and the object side is the convex side; the seventh lens has positive focal power or negative focal power; the eighth lens has negative focal power.

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lensfrom the object side to the image side along the optical axis. The first lens is positive in focal power, and the object side surface thereof is a convex surface. The second lens is negative in focalpower, and the third lens is positive in focal power. The fourth lens and the fifth lens are positive in focal power or negative in focal power. The sixth lens is positive in focal power. The seventhlens is negative in focal power, wherein the object side surface and the image side surface thereof are both concave surfaces. The combined focal length f12 of the first lens and the second lens, andthe combined focal length f34 of the third lens and the fourth lens meet the relation of |f12/f34|<=0.3.

The invention discloses an intelligent mattress, and particularly relates to an intelligent mattress with body position sensing and physiotherapeutic sleep aid functions. The intelligent mattress comprises a mattress base plate, a flexible array force sensor layer, a heat insulation layer, a far infrared electric heating layer, a protective layer, a knitted fabric layer, a signal acquisition control module, an intelligent terminal and a cloud server; the intelligent mattress monitors and assesses the sleep quality of a user by acquiring and analyzing pressure distribution data information, and performs infrared rehabilitation on the specific part of the user according to needs so as to improve the sleep quality of the user. By combining contact pressure measurement of a flexible noncontact interface with the latest technology of far infrared electric heating physiotherapy, the intelligent mattress is ultrathin, flexible and convenient to install and detach, has body position sensing and physiotherapeutic sleep aid functions, can be directly installed on the existing mattress without influencing the performance of the existing mattress, and provides an innovative solution for user's sleep quality monitoring, sleep index assessment, far infrared rehabilitation on the specific part, sleep aid, health condition assessment and the like.

The invention discloses a metal-organic framework nanosheet as well as a preparation method thereof and application thereof in oxygen evolution reaction of electrolysis water. According to the preparation method, the energy consumption is low, the reaction is rapid, reaction conditions are mild, the thickness of the obtained metal-organic framework nanosheet is 3nm-5nm, the specific surface area can reach 450m<2>.g<1>, and the alkali resistance and the chemical stability are good. The metal-organic framework nanosheet can be prepared into an electrolysis water oxygen production electrode, and a particular ultra-thin sheet structure can be in well contact with the surface of the electrode, so that influences on mass transfer, diffusion and material resistance in the electrochemical oxygen production process are overcome, the initial oxidation potential can reach 1.42V, and the overpotential at 10mA/cm<2> can reach 250mV. By virtue of a 24-hour test, the oxygen production effect is still maintained above 99.6%, the activity, stability and price of the metal-organic framework nanosheet are superior to those of traditional noble metal RuO2, and extremely high actual application value is achieved.

The invention discloses a monofilament fabric and a method for producing the same, wherein warp yarn forming the fabric is a monofilament. The method comprises the following steps: a preparing process before weaving, weaving, dyeing and finishing processes, wherein the preparing process comprises warping, rebeaming, drafting and healding processes; and the dyeing and finishing process comprises gray cloth forming, refining, intermediate forming, decrement, dyeing, functional resin finishing, and finishing forming. The fabric has the characteristics of lightness, ultra-thinness, softness, air permeability and the like, and is applicable to various styles of fashionable clothes.

The invention belongs the technical field of sensors and relates to a method for preparing an integrated compliant type sensor used for measuring curved surface gaps and force, and prepares planar electric eddy current sensitive elements and ultrathin compliant conducting polymer sensitive elements respectively by the following steps: coating the periphery of the base of a planar electric eddy current sensitive element which is stuck with an ultrathin compliant conducting polymer sensitive element with thermoset package resin by utilizing package resin location resin; and sticking another planar electric eddy current sensitive element layer on the surface to obtain an integrated compliant type sensor, while sticking, the planar electric eddy current coils the internal down-leads and the openings of the upper layer and the lower layer are opposite respectively. The sensor prepared according to the method has the advantages that the gap and the extrusion force between curved surfaces can be measured at the same time; the sensor can be stuck between surfaces of arbitrary shapes while measuring, is suitable for being mounted in narrow space while measuring, and can be applied in measuring field with high temperature, radicalization and the like; the measuring range is wide; and the measuring accuracy is high.

The application discloses a camera shooting lens group which comprises a first lens, a second lens, a second lens and a fourth lens that are orderly arranged from an object side to an image side along an optical axis. Object side faces of the first lens and the second lens are convex faces; an image side face of the third lens is a convex face, an image side face of the fourth lens is a concaved face, both of the first lens and the third lens have positive focal power, the second lens and the fourth lens have positive focal power or negative focal power, and total effective focal length f of the camera shooting lens group and an entrance pupil diameter EPD of the camera shooting lens group satisfy the condition of f/EPD<1.5.

The invention provides a transmission type polarized transition super surface, which belongs to the technical field of microwave frequency range electromagnetic wave regulation and control. The polarized super surface unit comprises three layers of metal pasters, with a medium substrate being disposed between two layers of metal pasters, and the top layer of metal paster and bottom layer of metalpaster having the same structure. Through reasonably designing the structure size of the top layer, the middle layer and the bottom layer of metal pasters, the incident linear polarization electromagnetic wave passes through the super surface structure and then continues to transmit. The transmitting electromagnetic wave has the equal electric field amplitude in the horizontal direction and the vertical direction, and the phase difference is 90 degree between the horizontal direction and the vertical direction, and thereby the transmitting electromagnetic wave has the feature of circular polarization. The invention is advantageous in that the transmission type circular polarization super surface has wide broadband, ultrathin surface, simple structure, and low cost; the polarized state of the electromagnetic wave can be flexibly controlled; wide application prospect is provided in fields like antennas, imaging, communication systems, electromagnetic confrontation and military stealth.

The invention discloses a wireless charging receiving coil and a fabrication method thereof. The wireless charging receiving coil comprises a flexible substrate and a multi-layer flexible coil plate, wherein the multi-layer flexible coil plate comprises a plurality of conductive coil layers and a plurality of insulation layers which are alternatively laminated, a first conductive coil layer is arranged on one surface of the flexible substrate, a first insulation layer is arranged on the first conductive coil layer, meanwhile, a via hole is further formed in each insulation layer and is filled with a conductive material, the conductive material is used for connecting conductive coils in the plurality of conductive coil layers in series and/or in parallel to form a wireless charging coil, and the conductive coils in the plurality of conductive coil layers have the same current flowing direction. The wireless charging receiving coil provided by the invention has the advantages of ultra thinness, flexibility, ultra miniaturization and high quality factor and the like, is high in electric energy receiving capability, completely conforms to Qi standard and can be applied to a portable and wearable device.

The invention relates to a double-screen notebook computer and a realizing method thereof. The double-screen notebook computer consists of a control plate and a display device which are articulated by a hinge shaft that is arranged at the central part of the joint of the control plate and the display device. An electronic-paper display touch screen replaces a fixed keyboard and carries out communicating and control by a control circuit of the notebook computer and a reader control circuit, and the electronic-paper display touch screen is used as a touch keyboard, a handwriting sketchpad and an extending display screen and the reading function of an electronic paper reader is realized by the reader control circuit. The invention realizes a touch input function, a handwriting input function and a double-screen display function of the extending display screen, and the form and the function of a keyboard are expended, so as to lead the users to use conveniently. Meanwhile the control plate can rotate around the display device in three-dimensional way, which ensures that the electronic paper display touch screen is outward so as to form a low-power-consumption electronic paper reader. The electronic paper display screen has the characteristic of no flicker, which relieves the vision fatigue caused by long time reading and satisfies the moving reading requirements of the users.

The invention discloses a broadband high-performance manual terahertz wave-absorbing material and a design method thereof. The broadband high-performance manual terahertz wave-absorbing material comprises a plurality of material units, wherein each material unit comprises chromium and photoresist SU-8, specifically, a metal chromium film is arranged on a substrate, and is used as an anti-transmission layer; the photoresist SU-8 and square arrays of the chromium are alternatively overlapped on the metal chromium film from bottom to top to form a pyramid shape; five layers of the square arrays of the chromium are arranged, wherein the thickness of each layer of 200nm, the side lengths of each square arrays are sequentially regularly reduced from bottom to top, and are sequentially 70 micrometers, 66 micrometers, 62 micrometers, 58 micrometers and 54 micrometers from bottom to top; the thickness of each layer of photoresist SU-8 is 4 micrometers; the period of the material units is 95 micrometers. According to the broadband high-performance manual terahertz wave-absorbing material, the large broadband absorbing effect of a terahertz wave band is realized, the process limit of making a conventional metamaterial is broken through, and the design and the making of a three-dimensional manual special medium of the terahertz wave band are completed.

The invention relates to the technical field of electrostatic film, and in particular, relates to a polyvinyl chloride electrostatic film and a preparation method thereof, wherein the polyvinyl chloride electrostatic film comprises the following raw materials in parts by weight: 80-120 parts of PVC resin, 46-73 parts of a plasticizer, 1-3 parts of a heat stabilizer, 3-7 parts of an anti-electrostatic agent, 0.3-0.7 part of a gelatinizing agent, 0.02-0.03 part of a pigment powder, and 0.1-0.3 part of other auxiliary agents. The polyvinyl chloride electrostatic film has high electrostatic resistance, has high anti-electrostatic effect and protection functions, has high self-adhesive performance, and has excellent stable performance under high temperature conditions; the polyvinyl chloride electrostatic film also has the advantages of being ultra thin, tough, transparent, self-adhesive, good in transparency, small in watermarks and the like, has fewer crystal points and low-temperature resistance, and has excellent comprehensive performance.

The invention discloses an optical imaging system, and the system sequentially comprises from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has the positive focal power. The second lens has the negative focal power, wherein the object side is a concave surface, and the image side is a convex surface. The third lens has the focal power. The fourth lens has the positive focal power, wherein the object side is a concave surface, and the image side is a convex surface. The fifth lens has the focal power, and the sixth lens has the focal power. The seventh lens has the negative focal power, wherein the object side is a convex surface. The total effective focal length f and the EPD (entrance pupil diameter) of the optical imaging system satisfy a relational expression: f/EPD<=1.8.

The invention discloses a flexible heat conduction/heat storage double-function composite material. The flexible heat conduction/heat storage double-function composite material is characterized in that (1-40wt% of) phase-change heat storage material particles are uniformly dispersed in matrixes, and the matrixes comprise (60-99wt% of) high-heat-conduction materials and are of three-dimensional stereoscopic network structures. The invention further discloses a method for preparing the flexible heat conduction/heat storage double-function composite material and application of the flexible heat conduction/heat storage double-function composite material. The flexible heat conduction/heat storage double-function composite material, the method and the application have the advantages that the flexible heat conduction/heat storage double-function composite material has a phase-change heat storage function with quick response capacity and is extremely high in heat conductivity (20-200 W/mK), accordingly, heat can be quickly transferred, heat of high-heat-production components such as chips and screens can be effectively conducted/absorbed, the hot-spot temperatures can be lowered, the service life of electronic equipment can be prolonged, the flexible heat-conduction/heat storage double-function composite material is free of leakage and high in flexibility and can be widely applied to electronic equipment such as intelligent mobile phones with strict requirements on structure spaces, and the like.

The invention discloses an ultrathin sound absorption structure capable of sound absorption in a wide low-frequency range, and belongs to the field of acoustic technologies. The structure is formed by arranging identical square cells uniformly, and each square cell is formed by fixing and connecting a front panel, an intermediate layer and a rigid backboard sequentially; through holes are processed in the front panels respectively; each intermediate layer is provided with a through hole the same with the through hole of the front panel and a large-caliber coiled solenoid and a small-caliber coiled solenoid which are coiled by taking the through hole as a start point; and the large-caliber the small-caliber coiled solenoids are distributed via serial connection, parallel connection or serial and parallel mixed connection. According to the invention, the coiled solenoids of different sizes are processed in the intermediate layers and distributed via serial connection, parallel connection or serial and parallel mixed connection, and the sound absorption structure is characterized by being ultrathin and enabling well sound absorption in the wide low-frequency range.

The invention discloses an imaging lens. The lens includes, in order from an object side to an image side in the optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens has a positive optical power, and the object side is a convex surface; the second lens has an optical power, and the image side is a concave surface; the third lens has an optical power, and the image side is a convex surface; the fourth lens has a positive optical power, and the image side is a convex surface; the fifth lens has a negative optical power, and the image side is a concave surface; at least one of the first to fifth lenses has a non-rotationally symmetric aspherical surface.

The invention discloses an optical imaging system. The optical imaging system sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a six lens and a seventh lens along the optical axis from the object side to the image side. The first lens and the third lens both have positive focal power; the second lens, the fourth lens, the fifth lens, the sixth lens andthe seventh lens all have positive focal power or negative focal power; the object side surface of the first lens is a convex surface and the image side surface is a concave surface; the image side surface of the second lens is a concave surface; the object side surface of the third lens is a convex surface; the object side surface of the seventh lens is a convex surface and the image side surface is a concave surface; the total effective focal length f of the optical imaging system and the entrance pupil diameter EPD of the optical imaging system meet the condition that f/EPD is smaller thanor equal to 1.5; the central thickness CT7 of the seventh lens on the optical axis, the central thickness CT5 of the fifth lens on the optical axis and half of the maximum angle of field of view HFOVof the optical imaging system meet the condition that CT7/CT5*TAN(HFOV) is larger than 1 and smaller than 2.

The present application discloses a camera lens. The camera lens comprises in order from an object side to an image side along an optical axis: a first lens having a positive focal power; a second lens having a focal power; a third lens having a focal power, wherein the image side is a concave surface; a fourth lens having a focal power; a fifth lens having a focal power, wherein the image side isa convex surface; a sixth lens having a focal power, wherein the image side is a convex surface; and a seventh lens having a focal power, wherein at least one of the object side and the image side isa concave surface. The distance TTL of the object side of the first lens to the imaging side of the camera lens on the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging side of the camera lens satisfy TTL / ImgH < 1.5. The center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, andthe center thickness CT3 of the third lens on the optical axis satisfy 1.5 < CT1 / (CT2 + CT3) < 2.2.

The invention provides a hyperplane lens based on crystalline titanium dioxide which can operate efficiently in the visible spectrum. The hyperplane lens includes a planar substrate and a plurality ofnanorods disposed on the planar substrate, the materials of the planar substrate and the plurality of nanorods are crystalline titanium dioxide, the phase value of each nanorod satisfies the following relationship: (please refer to the description), where l is an arbitrary integer, lambda 0 and phi 0 are the preset wavelength and focal length of the hyperplane lens, and (xi, yi) are the coordinates of each nanorod. In addition to the ability of focusing the light to the diffraction limit spot, the hyperplane lens can realize wide-band focusing, and the color difference deviation from the ideal focal spot is only about 10%. Compared with the recent popular P-B hyperplane lens (limiting the incident light to a circularly polarize state), the hyperplane lens can make the incident light insensitive to the polarized state. The hyperplane lens has the characteristics of ultra-thin, compactness and relatively high performance, and can play an important role in realizing miniaturization and lightweight optical systems.

The invention discloses a method for preparing a metal sheet with thickness of a monoatomic layer by taking hydrotalcite single-layer laminated sheet as a precursor. By using the method, a nano material with ordered transition metal nanosheets with atomic-scale thickness loaded on grapheme is prepared. The method comprises the following steps: firstly preparing a graphene oxide colloid solution; subsequently preparing a colloid solution of a hydrotalcite peeling layer, dropwise adding a peeled hydrotalcite colloid solution into a graphene oxide solution, precipitating in the presence of electrostatic interaction till an upper solution is clarified; reducing the obtained sediment by using sodium borohydride. The prepared graphene-loaded ultrathin metal sheet with atomic-scale thickness is capable of fully exposing each atom; due to the presence of the graphene, the graphene-loaded ultrathin metal sheet is excellent in electrical property and has important application values in fields of catalytic, electrochemical and functional devices.

The invention discloses an intelligent medicine patch which comprises a medicine patch body and a heating element. The medicine patch body comprises a medicament layer, and the medicament layer is at least used for clinging to the skin of affected parts; the heating element covers the outer side of the medicine patch body, is at least used for heating the medicament layer and comprises a heating film and an electrode, the heating film comprises nanometer silver particles and resin which are continuously distributed, the content of the nanometer silver particles in the heating film are 20-50 wt%, the density of the nanometer silver particles is 1-2 g/cm<3>, and the particle sizes of the nanometer silver particles are 50-500 nm; the electrode is connected with the heating film. The intelligent medicine patch has the advantages that the intelligent medicine patch is provided with the heating element, far infrared rays can be radiated by materials for the heating element, accordingly, the absorptive capacity of human bodies can be improved, medicine components in the medicine patch can be easily absorbed by the skin of the affected parts, and treatment effects can be realized; the intelligent medicine patch is provided with temperature sensors, and accordingly the temperatures of the skin of the affected parts can be monitored in real time; the working temperatures and time of the medicine patch can be set, and accordingly constant temperatures and timing can be intelligently controlled.

The invention discloses a camera lens group. From an object side to an image side, the camera lens group comprises in sequence along an optical axis: a first lens with positive refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power, a sixth lens with refractive power, and a seventh lens withnegative refractive power, wherein the object side of the first lens is a convex surface, the image side of the third lens is a concave surface, the image side of the sixth lens is a convex surface,the image side of the seventh lens is a concave surface, total effective focus f of the camera lens group and entrance pupil diameter EPD meet: f/EPD is less than 1.6, and maximum field of view FOV ofthe camera lens group meets: tan(FOV) is greater than 12.