48results about How to "Accurate coincidence" patented technology

The invention discloses a transcranial magnetic stimulation navigation positioning robot system and positioning method, which comprises a host, an infrared locator, a patient positioning reference frame, a registration probe, a machine arm and coil clamping device and a control unit; the host is connected with the control unit and the infrared locator for reading the patient image data, calculating the treatment area, registration rectification and calculating the position of the coil; the infrared locator is connected with the registration probe and the positioning reference frame, for positioning the position of the reference frame and the registration probe in real time; the patient positioning reference frame is arranged on the head of the patient; the registration probe is used for completing the registration rectification at the point on the face of the patient; the machine arm and coil clamping device is connected to the control unit for placing the coil in a predetermined position and adjusting the coil position in real time according to the patient's position. According to the invention, the coil according to the operation plan before treatment can be accurately positioned, the position of the coil is adjusted in real time during the treatment process to avoid deviation of the treatment area caused by the movement of the patient and improve the treatment effect.

The invention relates to a manufacturing method of a photomask, a photomask and a manufacturing method of a display device. The manufacturing method of a photomask comprises the following steps of: a first composition procedure for performing a photolithography process on a first film formed on a transparent substrate to form a first pattern, and a second composition procedure for performing a photolithography process on a second film formed on the transparent substrate to form a second pattern. The first composition procedure comprises a first depiction procedure, and the second composition procedure comprises a second depiction procedure; in the first depiction procedure and the second depiction procedure, depictions are performed using correction coordinate systems with the same distortion correction.

The invention relates to a three-dimensional Pan/Tilt/Zoom (PTZ) camera, which comprises a cradle head seat. The upper surface of the cradle head seat is provided with a groove-shaped support; a horizontally-rotating driving device of the groove-shaped support is arranged in the cradle head seat; a cylindrical shell is arranged on the groove-shaped support and a camera is arranged in the shell; the two sides of the shell are provided radial shell shafts; the outer side of a groove wall at one side of the groove-shaped support is provided with a rotation driving device of the shell; an inner shell is arranged in the cylindrical shell; the camera is arranged in the inner shell; a bearing is arranged between the shell and the inner shell; a lens of the camera extends out of the front ends of the inner shell and the shell; the rear end of the inner shell is provided with an inner shell shaft arranged on an inner shell axis; the rear end outside the shell is provided with an axial motor; and a transmission device is connected between the axial motor and the inner shell shaft. In order to acquire video images of a restored site and determine the positional state of the original camera during criminal investigation, the PTZ camera can be adjusted in three dimensions to make the video images shot by the PTZ camera accurately aligned with one of video images shot by the original camera.

The invention discloses a roller notching machine, wherein a machine tool feeding lever of the notching machine is connected to a gearbox second output shaft through a differential mechanism; the differential mechanism is provided with a driving shaft and left and right output shafts; the left output shaft is connected to the gearbox second output shaft; the right output shaft is connected to the machine tool feeding lever; the driving shaft is connected to a servo motor; a driving gear connected to a first output shaft, a middle gear engaged with the driving gear, and a sliding gear engaged or released from the middle gear are arranged in the gearbox; the sliding gear is arranged on the second output shaft; and a fixed gear engaged or released from the sliding gear is also arranged in the gearbox. The roller notching machine can automatically index under the control of an automatic control system by utilizing the servo motor to drive the differential mechanism. The indexing is accurate, the processing precision is ensured and the working efficiency is high.

The invention relates to a double-cross-surface laser-directional minimally-invasive cranial drill which is a positioning perforating drill for taking out intracranial hematoma and is provided with a machine body, a driving mechanism and a bit, wherein the driving mechanism is arranged in the machine body, and the bit is connected with an output shaft of the driving mechanism in a coaxial way. The machine body is provided with two cross planar light lasers of which the intersecting lines are collinear with bit axes. Preferably, one planar light laser is fixed with the machine body, and the other planar light laser is wound with the bit axes of the machine body to be in transitional fit and rotating connection. Under the guidance of a three-dimensional benchmark determined by the surface of the head part, the head surface drawing lines of the layer surface of a hematoma center in each direction are calculated out according to data on a CT (computed tomography) photo and are overlapped with head surface cross drawing lines through cross planar light emitted by the lasers so as to imitate noninvasive quick and easy positioning and perforating performed by hematoma on different panels.

The invention provides a stimulated emission loss super-resolution microscope for realizing rapid beam convergence. The stimulated emission loss super-resolution microscope comprises: an STED imagingunit and a beam combination test unit. Accurate beam combination is performed on exciting light and loss light by the beam combination test unit, so that the two beams can accurately coincide throughthe imaging spots of the STED imaging unit to obtain a better super-resolution imaging effect.

The present invention relates to a laser positioning system for an aperture-processing machine and is an accessory of an aperture-processing machine. The present invention is a type of laser positioning system for an aperture-processing machine that includes two laser transmission devices each of which emits a beam of light. The two light beams form an angular set up. A common line of intersection is formed at the point of intersection in space. After the two laser transmission devices have been fixed relative to the aperture-processing machine, the common line of intersection formed at the point of intersection of the two light beams mentioned above and the axial line of the main bearing cutter of the aperture-processing machine coincide exactly, thus forming the reference for positioning. In the application of the present invention, adjustment is easy, positioning is rapid and observation is direct with high accuracy and low cost. The device can be used widely in processing machines such as drilling machines, boring lathes and lathes.

The invention relates to a positioning and verification method for radiation therapy of tumors. The method consists of a radiation therapy field positioning method and a multileaf collimator shape verification method. The radiation therapy field positioning method comprises the following steps of (1) marking the position of a field center cross on the body surface of a patient; (2) making the center cross of the visual field of a camera in a positioning and verification device for radiation therapy of tumors and the therapy field central axis coincide; (3) showing the shooting field of the camera on a displayer in real time; (4) making the center cross of the visual field and the field center cross on the body surface of the patient coincide; and (5) completing the positioning, and making the camera return to the initial position on a guide rail. The multileaf collimator shape verification method comprises the following steps of: performing the steps of (1) to (4) in the radiation therapy field positioning method; (5) obtaining a corresponding ratio on the optical grating distance of a multileaf collimator; (6) displaying a radiation field shape or virtual multileaf collimator shape of the patient in the visual field of the camera, and making the center of the radiation field shape or virtual multileaf collimator shape of the camera coincide with the center of the visual field of the camera; (7) forming a heavy ion radiation field shape; and (8) completing the multileaf collimator shape verification. The method is simple and convenient.

The invention provides a spherical measuring prism with convenient adjustment and difficult-changed position of a glass pyramid. The spherical measuring prism comprises a sphere. A through hole penetrating through the sphere is opened on the sphere and the ball center of the sphere is on the axle wire of the through hole. The through hole is internally provided with a rear cover, a positioning corner, the glass pyramid and a front cover. The rear cover is installed in the through hole of the sphere and the glass pyramid is installed on the positioning corner while the front cover is installed in the through hole. The spherical measuring prism of the invention can drive the glass pyramid to move backwards by installing the front cover so as to ensure that three mutually vertical surfaces on the glass pyramid are closely contacted with the positioning corner, and accurately cause the superposition of the reflection center of the glass pyramid and the ball center of the sphere by controlling the working accuracy of components and back and forth adjustment when in installation, therefore, the position of the glass pyramid after installation is not easy to change.

The invention discloses a device for realizing laser precise positioning of a tunnel drilling position and a construction method. The device comprises a laser box and a laser box fixing device, and the laser box fixing device is provided with parallel laser line sliding groove and laser point sliding groove. Three laser line emitters are arranged in the laser line sliding groove, and three laser point emitters are arranged in the laser point sliding groove. The laser line sliding groove and the laser point sliding groove are provided with sliding holes along the grooves, and the laser line emitters and the laser point emitters are correspondingly connected with moving rods. One ends of the moving rods are placed outside the sliding holes, the laser box fixing device is fixed to a telescopic supporting device, and the telescopic direction of the laser line sliding groove and the laser point sliding groove are perpendicular to the telescopic direction of the supporting device. The laserpoint emitters and the laser line emitters are adopted, the position of laser can be adjusted according to the use conditions, the laser can illuminate the tunnel environment, and the construction isfacilitated for personnel; and the precision of laser point positioning can be adjusted to ensure that the laser accurately coincides with the drilling position.

The Young modulus tester comprises a base (1), supporting plates (2) are arranged on the two sides of the upper portion of the base (1), a transverse plate (3) is arranged on the upper portions of the supporting plates (2), a cylinder (4) is arranged on the transverse plate (3), and the lower end of the cylinder (4) is connected with a metal wire (5); a motor support (6) is arranged on the side portion of the supporting plate (2) on one side, an adjusting motor (7) is fixed to the motor support (6), a driving gear (8) is arranged at the extending end of the adjusting motor (7), a device plate (20) is arranged between the supporting plates (2), and an optical lever adjusting mechanism (21) is arranged on the device plate (20). The experiment accuracy can be effectively improved, the experiment efficiency is improved, and meanwhile the experiment safety is guaranteed.

The invention discloses a device for detecting the coaxiality of an offshore riser clamp, and the device comprises a first sleeve, second sleeves, a detection disc, and the first sleeve which is provided with a fastening assembly and chutes. The two second sleeves are arranged in the first sleeve side by side in the axial direction of the first sleeve, limiting assemblies are fixed to the second sleeves, the limiting assemblies are clamped in the chutes and can freely slide along the chutes, and the second sleeves can be fixed to a certain position in the first sleeve under the action of the fastening assembly; and the detection disc is used for measuring the coaxiality of the plurality of vertical pipe clamps. The device disclosed by the invention can be used for detecting the coaxialityof a plurality of vertical pipe clamps, and is simple to operate, time-saving, labor-saving, wide in application range and smaller in error.

The invention provides a micro display optical engine which comprises a light source, a polarizer, light gathering illuminating components, a first and second filter polarizer converting slices, metal grating polarizing separating/merging lens, a compensating glass board, two-color separating/merging lens, a wide-bandlambada/4 wave slice, a silicon base liquid crystal chip, a detecting polarizer and a projecting lens. Wherein the two-color separating/merging lens includes base glass board, two-color separating/merging light film and a protecting glass board; the wide-band lambada/4 wave slice includes red, green and blue three color wide-bandlambada/4 wave slices. The invention increases a protecting glass board based on the dual way two-color separating/merging lens to ensure the light paths balance of the red, green and blue imaging light channels.