479results about How to "Reduce curvature" patented technology

A catheter has a stylet formed of a shape-retentive and resilient material having a preformed curved shape at its distal end resulting in the catheter sheath having the preformed curved shape. The catheter sheath has a plurality of electrodes at its distal end for contacting selected biological tissue for imparting ablation energy thereto. The catheter sheath also has an axially mounted tendon for causing deflection of the distal end. The stylet material permits straightening the catheter sheath during insertion into the patient and advancing the electrodes to the target tissue. Upon removal of the straightening forces, such as by entry into a chamber of the heart, the stylet material resumes its preformed curved distal shape thereby forcing the catheter distal end with the electrodes into the same preformed curved shape. The operator may place the curved distal end into contact with the target tissue and axially move the tendon as desired to gain greater control over the bend in the distal end of the catheter sheath to adjust the radius of curvature of the distal end to obtain greater contact of the electrodes with the heart tissue. Preferably, the stylet is formed of nitinol.

An encapsulated electrophoretic display is produced by laminating an electrophoretic medium, comprising a plurality of discrete droplets (104) in a polymeric binder (106′), each droplet (104) comprising a plurality of electrophoretic particles dispersed in a suspending fluid, to a backplane (110) having at least one electrode at a temperature such that the polymeric binder (106′) flows and secures the electrophoretic medium to the backplane (110).

The invention has an object to provide an insulation gate type semiconductor device and a method for producing the same in which high breakdown voltage and compactness are achieved. The semiconductor device has a gate trench and a P floating region formed in the cell area and has a terminal trench and a P floating region formed in the terminal area. In addition, a terminal trench of three terminal trenches has a structure similar to that of the gate trench, and the other terminal trenches have a structure in which an insulation substance such as oxide silicon is filled. Also, the P floating region 51 is an area formed by implanting impurities from the bottom surface of the gate trench, and the P floating region is an area formed by implanting impurities from the bottom surface of the terminal trench.

A method for determining a cutting trajectory that enables a curve section of a lane to be cut by a vehicle. In the method, information about the curve section is received, and the curve section is divided into at least one curve segment having a segment length and a start curvature, the curve segment being a straight-line segment or a circular arc segment or a curve segment whose curvature is a function of an arc length of the curve segment. This is followed by determination of a cutting trajectory from the at least one curve segment, so that, at a specific point of the curve section, the cutting trajectory has a predetermined offset relative to a center of the lane.

An image which is determined by surface is captured and stored by sensing device. Subsequently, at a second image corresponding to a displacement of the surface is captured and stored. The two images are repeatedly compared at different offsets in a displacement direction. Theoretically, the most extreme value of the comparison will occur at the image offset that corresponds exactly with the actual displacement. However, typically none of the comparison offsets correspond exactly with the actual displacement, therefore interpolation between the comparison offsets is required. The method of comparing the images, as well as the method of interpolating to determining the image offset corresponding to the extreme value of the comparison can both contribute to systematic errors in estimating the displacement of the surface from the images. Herein, the systematic errors are rejected by correlation-based comparison systems and methods which reduce the curvature of the correlation function for offsets which bound the extreme value, and by interpolation systems and methods which are relatively insensitive to the asymmetry of the correlation function value points selected as the basis for the interpolation. These systems and methods allow fast, highly accurate, displacement determinations using relatively simplified calculations and relatively few correlation function value points. Thus, such a displacement measuring system can track high speed displacements with high accuracy. The systems and methods are especially suitable for measuring displacement of a surface using speckle images.

A foldable electronic apparatus includes a flexible display panel, a first cover and a second cover configured to support a rear surface of the flexible display panel and be interconnected by a hinge member, and a first slider and a second slider configured to be installed on the first cover and the second cover and vary a curvature of the flexible display panel by an operation of sliding along the first cover and the second cover, respectively.

A hybrid contact lens includes a substantially rigid center portion having a flexural deformation of about 10% at an applied load of at least about 50 grams and a Dk of at least about 30×10⁻¹¹ (cm²/sec) (mL O₂)/(mL mm Hg). The hybrid contact lens also includes a substantially flexible skirt portion connected to the center portion. A method of designing a hybrid contact lens includes determining the applied load that results in a selected flexural deformation.

A hair iron 1 includes a pair of grips 9 being rotatably connected to a base end so as to be openable and closable; and a heating part 11 being provided to be opposed to a tip end side of each grip 9 wherein each heating part 11 has a flat opposing surface, a rear surface side of the heating part 11 has a curved curling part 13, and at least one curling part 13 has an auxiliary case 15 with a curved surface having a different curvature from that of the curling part 13 so as to be attachable and detachable thereto and therefrom.

A display device includes a first substrate; a second substrate covering the first substrate; a liquid crystal layer between the first substrate and the second substrate; a plurality of pixels on the first substrate; and a light blocking member disposed on at least one of the first substrate and the second substrate, the light blocking member disposed in a curved area and defining a display area and a non-display area. The plurality of pixels includes a first pixel outside the curved area; and a second pixel in the curved area, and a pixel electrode of the first pixel has a different shape from a shape of a pixel electrode of the second pixel.

The piezoelectric generator is characterized by providing a spacer member in the vicinity of a fixed end of an elastic plate mounted on a base plate by means of affixing both ends in such a way as to prevent the elastic plate not to be deformed unnecessarily when a load is applied to the elastic plate from above, so that a piezoelectric ceramic plate glued onto the elastic plate generates electric power by the elastic plate's deformation.

A nitride based semiconductor device includes: an n-type cladding layer; an n-type GaN based guide layer placed on the n-type cladding layer; an active layer placed on the n-type GaN based guide layer; a p-type GaN based guide layer placed on the active layer; an electron block layer placed on the p-type GaN based guide layer; a stress relaxation layer placed on the electron block layer; and a p-type cladding layer placed on the stress relaxation layer, and the nitride based semiconductor device alleviates the stress occurred under the influence of the electron block layer, does not affect light distribution by the electron block layer, reduces threshold current, can suppress the degradation of reliability, can suppress degradation of the emitting end surface of the laser beam, can improve the far field pattern, and is long lasting, and fabrication method of the device is also provided.

A first apparatus for displaying a color image comprises an electro-optic display (1002) having a plurality of pixels, each of which can be independently set to a light-transmissive optical state or a substantially opaque optical state, and lighting means (1006) arranged to flash separate pulses of light of at least two differing colors on to one surface of the electro-optic display (1002). A second apparatus for generating pulses of light of differing colors comprising a light source and a filter assembly comprising first (1100) and second (1106) electro-optic layers each having a light-transmissive state and a colored state, the two colored states being different, and electrodes to switch these layers between these states.

The present disclosure concerns a curvature-changing, accommodative intraocular lens (IOL) for implantation in the capsular bag of a patient's eye. The IOL includes a fluid optic body having a cavity for containing an optical fluid, the cavity at least partially defined by a sidewall extending around the cavity and defining a diameter of the cavity and a deformable optical membrane intersecting the sidewall around a circumference of the sidewall and spanning the diameter of the cavity. The IOL further includes a second optic body spaced a distance apart from the fluid optic body and a plurality of struts extending from the sidewall and coupling the fluid optic body to the second optic body. The struts are configured such that axial compression of the capsular bag causes the struts to deform the sidewall in a manner that increases the diameter of the cavity, modifying a curvature of the deformable optical membrane.

Channel regions and gate electrodes are also disposed continuously with transistor cells below a gate pad electrode. The transistor cells are formed in a stripe pattern and allowed to contact a source electrode. In this way, the channel regions and the gate electrodes, which are positioned below the gate pad electrode, are kept at a predetermined potential. Thus, a predetermined drain-source reverse breakdown voltage can be secured without providing a p⁺ type impurity region on the entire surface below the gate pad electrode.

The invention discloses coating equipment for tube-type PERC solar cells. The coating equipment comprises a wafer loading region, a furnace body, a gas cabinet, a vacuum system, a heating system, a control system and a graphite boat; the gas cabinet is provided with a first gas pipeline for introducing silane, a second gas pipeline for introducing ammonia, a third gas pipeline for introducing trimethylaluminum, a fourth gas pipeline for introducing laughing gas and a fifth gas pipeline for introducing methane; the graphite boat is used for loading or unloading a silicon wafer; before being used or after being coated many times, the graphite boat needs to be subjected to pretreatment comprising the steps: drying the graphite boat; and coating at least one layer of silicon carbide film on the surface of the dried graphite boat. Correspondingly, the invention further discloses a coating method for tube-type PERC solar cells. By using the coating equipment and method, the pretreatment step of the graphite boat is simplified, the consumption of the silicon wafer is reduced, the silicon wafer is prevented from being scratched, and the EL yield of the cells is increased.

The invention discloses a method for decreasing warp and bow of a silicon carbide wafer, which includes the steps: applying mechanical stress on the grinded and polished silicon carbide wafer so that the wafer deforms towards the direction of flatness reduction, wherein the mechanical stress enables the wafer to reach the low warp and low bow as expected; and simultaneously, heating the wafer to the high enough temperature prior to annealing for sufficient time to enable crystal lattices of the wafer to slip and to be rearranged, so that deformation of the wafer is kept, and the wafer with the sufficiently-low warp and bow is obtained.

The present invention relates to a preparation method of silicon epitaxial wafer for power VDMOS tube. Firstly, selection and usage of substrate are important, the selected substrate not only can meet the requirements for device, but also can meet the requirements for epitaxy. Its preparation method includes the following steps: selecting proper gas corrosion flow and gas corrosion time, reducing concentration of gas corrosion impurity in epitaxial reactor so as to reduce self-doping in epitaxial growth process; first layer epitaxial growth, on the substrate surface with high concentration utilizing lower temperature to grow a layer of purity epitaxial layer, encapsulating substrate surface and edge, controlling its growth temperature, growth rate and epitaxial time so as to make encapsulating layer obtain ideal effect, at the same time, selecting proper epitaxial condition to make the deformation of epitaxial wafer be minimum; and second layer epitaxial growth, utilizing tower temperature to grow a layer of epitaxial layer whose resistivity and thickness can meet requirements for device.

Disclosed is a method for producing a magnetic core for antenna wherein thin metal strips are laminated. This method for producing a magnetic core for antenna is characterized in that a metal thin band is processed into strips having a width of the aimed magnetic core for antenna, then the thin strips are stacked through a resin layer to form a laminate, and after that the laminate is cut into a length of the aimed magnetic core for antenna.

A photoirradiation device in which an optical system can be miniaturized and utilization efficiency of light can be improved in a manner that includes a first lens and a second lens, which share refraction of light to convert light beams emitted from a plurality of light sources into the light beams substantially parallel to an optical axis, and a third lens focusing the light beams from the second lens on an incident surface 20A of a lightguide 20. A fiber rod which can output uniform light beams in a manner that includes a first rod having a single fiber and a second rod having a plurality of fibers.

The invention provides a display panel, comprising a flexible substrate, wherein the flexible substrate comprises a first section, a second section, and a bent section connecting the first section andthe second section; The bent section is in a bent state; The first section and the second section are connected and fixed by a connecting piece, and the bonding area of the second section is arrangedin an inclined plane or a curved plane. The display panel provided by the invention has the beneficial effects that the first sub-section used for fixing the bent section is arranged in an inclined shape, and after the bending area is bent and bonded, the bending degree of the bent section is reduced compared with the prior art, the R angle of the bending area is further reduced, and the narrow edge framing of the display panel is further realized.