492results about How to "Ultra-thin" patented technology

The cell pole piece includes electrode active substance, collector, adhesive and conducting agent. The thickness of said pole piece is 40~100mum. The active substance of anode is selected from one of LiCoO2and LiMnO2 or the mixture of the both. The active substance of cathode is electrographite with grain size D50 distributed between 5~11mum. The said adhesive is polyvinylidene fluoride or Teflon. The conducting agent is selected from one of conducing carbon black, super-conduct carbon black, conductance graphite, acetylene black and carbon nano tube, or mixture of two of them above, or the mixture of more than two of them above. The weight percentage of electrode active substance, adhesive and conducting agent are 85~96%, 2~8%, 1~10% respectively.

The invention discloses a dry preparation method of a high-temperature resistant nanometer micropore thermal insulation board. The dry preparation method comprises the following steps of: (1) weighting nanometer fumed silica, an infrared radiation light screening agent and reinforced fibers proportionally, and stirring and dispersing into a stirring and dispersing device to obtain a mixture; (2) feeding the mixture into a mould of a press; (3) pressing the mixture in the mould to a core at the pressure intensity of 0.3-2 MPa; and (4) coating the core into a packaging material. The dry preparation method, provided by the invention, has the advantages of ultra-thin high-temperature resistant nanometer micropore thermal insulation board, low heat conduction coefficient, good high-temperature resistance, low heating permanent line change coefficient and the like.

The invention discloses an improved wind load pressure sensor, comprising a sensor shell, an oil charge sensitive body and a signal conditioning circuit, wherein, the oil charge sensitive body is composed of a sensitivity body shell in the form of a groove, a silicon integrated sensitive chip and an elastic separation film fixed on the opening of the groove, the ring circumambience of the back pressure face of the silicon integrated sensitive chip is fixed at the bottom of the groove through a fixed supporting ring in a sealing manner, the back pressure face of the silicon integrated sensitive chip is communicated with ambient pressure through a back pressure airway tube, the pressure surface of the silicon integrated sensitive chip is provided with a Wheatstone bridge on which a strain resistor is led to the signal conditioning circuit through an internal lead and a lead column and then is output, the non-pressure surface of the silicon integrated sensitive chip is provided with a temperature sensor, a heating resistor and a constant temperature control circuit controlling the heating resistor according to the temperature sensor, and silicon oil is filled among the elastic separation film, a groove internal ring surface and the pressure surface of the silicon integrated sensitive chip. The invention can control the temperature of the oil charge sensitive body, and eliminate the problem that an oil charge micro-pressure sensor is in fault due to the influence of ambient temperature, thereby realizing high-accuracy survey of wind loads.

The invention discloses an optical imaging system. The system successively comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis. The first lens has positive focal power, and an object side surface is a convex surface; the second lens has negative focal power; the third lens has the negative focal power, and the image side surface is a concave surface; the fourth lens has the positive focal power or the negative focal power; and the fifth lens has the negative focal power, and the object side surface is the concave surface. The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging system on the optical axis, the total effective focal length f of the optical imaging system, and the half ImgH of the diagonal length of an effective pixel area on the imaging surface of the optical imaging system satisfy the following conditional expressions: TTL/f<=0.95 and f/ImgH>4.5.

The invention discloses an achromatic light field camera system based on super-structure lens arrays. The system includes a line polarizing plate, quarter wave plates, objective lenses, the achromaticsuper-structure lens arrays and a photoreceptor. The achromatic super-structure lens arrays are arranged in middles of two combinations of the line polarizing plate, the quarter wave plates and the objective lenses which are sequentially arranged. The photoreceptor forms a rear photosensitive plane to be used to receive an image. The achromatic super-structure lens arrays are two-dimensional optical devices formed by arranging super-structure lenses on planes. Four-dimensional parametric light field information including two dimensions of positions and two dimensions of directions at the sametime can be accurately recorded on the photodetector by using the achromatic super-structure lens arrays. A design of an achromatic light field camera of visible-light waveband is realized. The achromatic super-structure lens arrays are the two-dimensional optical devices formed by arranging the super-structure lenses on the planes. The four-dimensional parametric light field information including the two dimensions of the positions and the two dimensions of the directions at the same time can be accurately recorded on the photodetector by using the achromatic super-structure lens arrays.

The invention discloses an optical imaging lens, which sequentially comprises the following components from an object side to an image side along an optical axis: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, wherein the first lens has an optical power, an object-side surface of the first lens is a concave surface, and an image-side surface of the first lens is a convex surface; the second lens has an optical power; the third lens has a positive optical power; the fourth lens has a negative optical power; the fifth lens has a positiveoptical power; the sixth lens has an optical power, an object-side surface of the sixth lens is a convex surface, and an image-side surface of the sixth lens is a concave surface; and the seventh lens has a negative optical power.

The invention discloses acrylic foaming damping foam which is applied to an OLED module and comprises a release film layer and an acrylic foam layer, the release film layer and the acrylic foam layer are overlapped together, the acrylic foam layer is formed by coating and drying acrylic foam coating liquid, and the acrylic foam coating liquid is prepared from the following components in parts by weight: an acrylic polymer, a curing agent, foamed microspheres, an inorganic filler, a dispersing agent, an inorganic pigment and an organic solvent. The acrylic foam tape prepared by the invention can absorb impact force, has excellent impact absorbability, can be widely applied to the periphery of liquid crystal as a buffer material by utilizing the characteristics, cannot cause water decomposition due to overhigh humidity, and has excellent durability.

The invention discloses an optical imaging lens which sequentially comprises a first lens having positive focal power, a second lens having focal power, a third lens having focal power, a fourth lenshaving focal power, a fifth lens having focal power, a sixth lens having focal power, and a seventh lens having negative focal power from the object side to the image side along the optical axis, andthe image side surface of the fifth lens is a concave surface; the effective focal length f of the optical imaging lens and the maximum half-field angle HFOV of the optical imaging lens satisfy 5.5 mm< tan (HFOV) * f < 6.5 mm. The optical imaging lens has at least one beneficial effect of large image surface, large wide angle, large aperture, ultrathin property and the like.

The invention discloses an ultrathin flexible capacitive touch sensor based on graphene. The sensor comprises an ultrathin flexible membrane, the ultrathin flexible membrane includes a surface a and a surface b; the surface a and the surface b are each provided with a channel electrode; a first conductive layer is arranged on the surface a, the first conductive layer is connected with a capacitive induction chip of a capacitive touch sensor through the channel electrode arranged on the surface a, the first conductive layer is formed by patterning one layer or multiple layers of graphene membranes; a first optical rubber layer is arranged on the surface of the first conductive layer; a second conductive layer is arranged on the surface b, the second conductive layer is connected with the capacitive induction chip of the capacitive touch sensor through the channel electrode arranged on the surface b, the second conductive layer is formed by patterning one layer or multiple layers of graphene membranes; and a second optical rubber layer is arranged on the surface of the second conductive layer.

The invention provides a camera shooting lens system. The camera shooting lens system successively comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from the object side to the image side along an optical axis, the first lens has positive light focal power, and the object side surface of the first lens is a convex surface; the second lens has negative light focalpower, and the image side surface of the second lens is a concave surface; the third lens has positive light focal power; the fourth lens has light focal power; the fifth lens has light focal power, and the image side surface of the fifth lens is a concave surface; at least one surface of at least one of the first lens, the second lens, the third lens, the fourth lens and the fifth lens is a non-rotational symmetric aspheric surface, and the effective focal length fx of the camera shooting lens system in the X axis direction and the effective focal length fy of the camera shooting lens systemin the Y axis direction meet the relationship that 0.5 is less than fx/fy, and fx/fy is less than 1.5.

The invention relates to a process for producing a superfine high-purity quartz glass pipe for a high-temperature sensor, which is characterized by comprising the following steps of: finely selecting quartz blocks as raw materials, wherein the particle size of the quartz blocks is 20-30 mm, and the content of SiO2 is above 99%; sequentially carrying out soaking in hydrochloric acid, roasting, water quenching, mechanical pulverization, iron removal, soaking in mixed acid, high-temperature stirring and washing and high-temperature chloridization on the raw materials to obtain high-purity quartz sand; then throwing the high-purity quartz sand in a quartz furnace for smelting, pulling into a quartz glass pipe, and then scouring, cutting, trimming, ultrasonic cleaning and dehydroxylating so that a finished product is obtained. The quartz glass pipe produced and prepared by the process has the superfine and ultrathin features, has the characteristics of high-temperature resistance, molten steel and glass liquid-washing resistance, corrosive resistance, high heat transfer speed, good soaking performance, large strength, long service life, no bursting under shock heating and cooling condition, strong process operability, scale production and the like, and completely accords with the requirements of various performance indexes of the quartz glass pipe used as an outer protective pipe of the high-temperature sensor.

The invention discloses an optical imaging lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, which have refractive power, along an optical axis from an object side to an image side, wherein the first lens has positive refractive power; the third lens has negative refractive power; half ImgH of the length of adiagonal line of an effective pixel region on an imaging plane of the optical imaging lens meets the condition that ImgH is greater than 5mm; and the relative F number Fno of the optical imaging lensmeets the condition that Fno is smaller than 1.6.

The invention discloses a covering film of a flexible printing circuit board, a flexible printing circuit board structure provided with the covering film, and a manufacture method. The covering film is provided with a liquid baking type polyamide imide film directly formed on the surface of a formed circuit substrate. The formed circuit substrate and the liquid baking type polyamide imide film form the flexible printing circuit board, the flexible printing circuit can be matched with a reel-to-reel printing machine table for continuous production, the liquid baking type polyamide imide film can be adopted and matched with a photoreception polyimide protective film to form the covering film which can improve reserved opening precision of a flexible printing circuit board welding plate or a circuit. The covering film has the advantages of being ultra-thin, good in softness and flexibility, conforming to environment-friendly operation without separating paper, producing and machining in a non-scrap mode, being high in TG and the like. Moreover, the flexible printing circuit board provided with the covering film is suitable for flip phones, slide phones, digital cameras, digital photographic cameras, tablet personal computers, intelligent mobile phones and the like.

The invention discloses an ultra-thin electromagnetic wave converging and diverging lens design method based on a phase discontinuous surface and belongs to the field of electromagnetism. The ultra-thin electromagnetic wave converging and diverging lens design method based on the phase discontinuous surface solves the problem that a traditional lens is limited in thickness. The design method includes the following steps that first, the focal distance of a required focus point is set; second, according to the principle of a Pancharatnam-Berry phase device, for vertical incidence electromagnetic waves with the electric field polarized along the X-axis and the Y-axis, the first-stage resonance frequency point of a unit structure with the length of a side equal to 5mm is 9.81GHz, and any dispersed phase shift can be introduced to transmitted electromagnetic waves; third, according to the required phase distribution of the converging and diverging lens, an expression of the relation between the angle theta by which each unit rotates in the positive direction of the X-axis and the distance x from the unit to the original point can be obtained on the first-stage resonance frequency point; fourth, f in the first step is put into the first formula in the third step, and thus design parameters of the lens are obtained, and the ultra-thin electromagnetic wave converging and diverging lens design based on the phase discontinuous surface is completed. The ultra-thin electromagnetic wave converging and diverging lens design method based on the phase discontinuous surface is applicable to the field of designing and machining of electromagnetic wave regulation and control lenses.

The invention discloses a tomographic imaging method based on an aplanatic super-structured lens, namely a chromatographic imaging technology utilizing wavelength coding based on a super-structured aplanatic lens. A light source probe (1), the aplanatic super-structured lens (2), a linear polarizer (3) and a quarter-wave plate can be taken as auxiliary optical elements to be inserted into an imaging system for directly improving a signal-to-noise ratio; a photoreceptor (5) is arranged on the imaging surface and is used for receiving an image; through relatively continuous irradiation of different wavelengths, the image surface information of wavelength coding is acquired, and then the tomographic image information of an object is obtained through a corresponding algorithm. According to themethod, a design principle of a super-structure surface is adopted, and the control of the color difference and the correction of the spherical aberration are realized by utilizing the phase.

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens, which comprises nine lenses. The nine lenses are a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens in sequence from the object side to the image side. The second lens has negative refractive power. Specifically, thefocal length of the camera shooting optical lens is f, the focal length of the first lens is f1, the on-axis thickness of the second lens is d3, the on-axis distance from the image side surface of thesecond lens to the object side surface of the third lens is d4, and the following relational expressions are satisfied: f1/f is greater than or equal to 0.80 and less than or equal to 1.80; d3/d4 isgreater than or equal to 1.50 and less than or equal to 8.00. The camera shooting optical lens provided by the invention has good optical performance and meets the design requirements of large aperture and ultra-thinness at the same time.

The invention relates to the field of optical lenses, and disclosed a camera shooting optical lens. The camera shooting optical lens includes nine lenses in total, and the nine lenses are, in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens, wherein the second lens hasnegative refractive power; specifically, the focal length of the camera shooting optical lens is f, the focal length of the first lens is f1, the on-axis thickness of the sixth lens is d11, the on-axis distance from the image side surface of the sixth lens to the object side surface of the seventh lens is d12, and the following relational expressions are satisfied: f1/f is greater than or equal to2.00 and smaller than or equal to 5.00; d11/d12 is greater than or equal to 2.00 and smaller than or equal to 9.00. The camera shooting optical lens provided by the invention has good optical performance and meets the design requirements of large aperture and ultra-thinness at the same time.

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens. The camera shooting optical lens comprises nine lenses, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens in sequence from the object side to the image side. The second lens has negative refractive power. Specifically, the focal length of the shooting optical lens is f, the focal length of the first lens is f1, the on-axis thickness of the eighth lens is d15, the on-axis distance from the image side surface of the eighth lens to the object side surface of the ninth lens is d16, and the following relational expressions are satisfied: f1/f is greater than or equal to 0.70 and smaller than or equal to1.80; d15/d16is greater than or equal to 2.00 and smaller than or equal to 10.00. The camera shooting optical lens provided by the invention has good optical performance and meets the design requirements of large aperture, wide angle and ultra-thinness at the same time.