18results about How to "Easy to correct" patented technology

The application discloses a long-focus industrial lens. The long-focus industrial lens is arranged with a first lens group, a diaphragm, a second lens group and a third lens group arranged in sequence along an optical axis from an object plane to an image plane; the first lens group has positive refractive power, the second lens group has negative refractive power, and the third lens group has positive refractive power; and the refractive power of the first lens group, the second lens group and the third lens group is limited to meet a certain proportion range, so that the refractive power can be more reasonably shared, the correction of spherical aberration is facilitated, the incidence angle and the emergence angle of light are reduced without affecting the refractive power of the first lens group, the sagittal aberration is reduced, the correction of field curvature, astigmatism, distortion and chromatic aberration and other aberrations is realized, and finally a long-focus industrial lens scheme with low aberration and high resolution is realized.

The application discloses a deviation rectifying device of a heat transfer printing machine and relates to the technical field of deviation rectifying devices. The deviation rectifying device comprises a support, connecting plates fixedly connected to the two sides of the bottom of the support, a deviation rectifying mechanism arranged on the inner side of the support, a motor mounted on one side of the support, a groove formed through one side of the support, a bidirectional screw rod fixedly connected to one end of the output shaft of the motor, a guide rod fixedly connected to the inner side of the support, and two screw sleeves threadedly sleeved with the outer side of the bidirectional screw rod and slidably sleeved with the outer side of the guide rod. The deviation rectifying mechanism is arranged, so that workers can adjust the distance between the two screw sleeves according to the size of the object to be subjected to heat transfer printing, thereby facilitating the rectification of objects of different sizes and the expansion of the application range of the device.

This invention provides a catadioptric shortwave infrared imaging spectrometer, comprising, in order of light incidence, an entrance slit, a plane mirror, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, a grating, and an imaging sensor. The plane mirror, together with the upper portions of the first, second, third, fourth, fifth, sixth, and seventh lenses, forms a collimation system. The grating, together with the lower portions of the seventh, sixth, fifth, fourth, third, second, and first lenses, and the imaging sensor, together form an imaging system. Collimation and imaging share a single lens group, resulting in a compact structure, easier aberration correction, simpler assembly and adjustment, better image quality, lower tolerance sensitivity, and reduced assembly difficulty.

This invention provides an imaging lens that can effectively correct aberrations even in close-up photography, and a camera device incorporating the imaging lens. The imaging lens, from the object-side to the image-side, comprises: a front lens group having positive refractive power that remains constant during focusing; an aperture, continuously arranged with the front lens group; a first focusing lens group having positive refractive power; a second focusing lens group having negative refractive power; and a final lens group, arranged on the image-side and having positive refractive power that remains constant during focusing. When focusing from an object at infinity to a closer object, the first and second focusing lens groups move by increasing their spacing from each other. The lens surface of the first focusing lens group on the object-side is concave, and the lens surface of the front lens group on the image-side is concave.

This utility model relates to the field of ship stern tube installation technology, specifically to an auxiliary device for ship stern tube installation, including a support base, a movable plate above the support base, a positioning structure for positioning the movable plate on the support base, a connecting frame fixedly connected to the top of the movable plate, a support ring fixedly connected to the top of the connecting frame, several rotating blocks above the movable plate, a first roller fixedly connected to the side of the rotating blocks facing the axis of the support ring, and an adjustment mechanism for adjusting the angle of the rotating blocks on the support ring; it facilitates the correction of the ship stern tube and enables multi-degree-of-freedom adjustment of the support ring, thus improving its applicability.

This utility model relates to the field of coating machine technology, and more particularly to a woven fabric coating machine. The utility model includes a coating box, with electric rollers rotatably connected to both ends of the inner side of the coating box. Guide grooves are formed on both sides of the coating box, located in the middle. Resistance rollers are slidably connected to the inner sides of the guide grooves. An arc-shaped plate is slidably connected to the inner side of the coating box, above the resistance rollers. A coating roller is rotatably connected to the bottom end of the inner side of the arc-shaped plate. The woven fabric coating machine provided by this utility model conveys the woven fabric from the electric rollers and resistance rollers. A hydraulic rod is activated to drive the arc-shaped plate and the coating roller to apply pressure to the resistance rollers, enabling the coating roller to effectively coat the upper surface of the woven fabric. The pressure from the hydraulic rod effectively increases the uniformity of the coating on the woven fabric.

This invention belongs to the field of mold manufacturing technology, specifically an over-injection correction system and method for injection molds. The system includes a lower base plate and an upper base plate of the injection mold. A support pad is symmetrically fixed to one side of the lower base plate, and a temperature control base is fixed to one side of the support pad. A lower mold plate is mounted on the middle surface of the temperature control base, and a correction mechanism is installed inside the temperature control base. An injection mechanism is mounted on the outer surface of the lower mold plate. A material conveying cylinder is mounted on one side of the upper base plate, and a uniform feeding mechanism is installed inside the material conveying cylinder. This over-injection correction system and method for injection molds works by exposing the discharge port of the discharge pipe at the upper end of one side of the correction groove during the downward movement of the lower mold plate due to over-injection. Excess material is then discharged through the inclined discharge pipe to the connecting pipe on the outside. Furthermore, a pressure relief valve releases pressure inside the injection cavity, thus meeting the injection requirements.

The invention relates to the technical field of machine tool parts, in particular to a cross beam device which comprises a cross beam body, a cross beam stand column is fixedly arranged at the lower end of the cross beam body, a cross beam deflection correction mechanism is arranged in the cross beam body and comprises suspension beams, suspension beam stand columns, pull rods and adjusting nuts, and the suspension beams are arranged on the two sides in the cross beam body in the length direction of the cross beam body. The cantilever is made of flexible materials, cantilever stand columns are arranged at the two ends of the cantilever respectively, the lower ends of the cantilever stand columns are fixedly connected with a bottom plate of the cross beam body, a pull rod is arranged between the cantilever and the bottom plate of the cross beam body, the lower end of the pull rod is fixedly connected with the bottom plate of the cross beam body, and the upper end of the pull rod penetrates out of the cantilever and is provided with an adjusting nut. The beam body comprises a top plate, a bottom plate and side plates. The beam is simple in structure, few in component and free of occupying the upper space of the beam, deflection deformation of different positions of the beam can be corrected respectively, correction precision is high, and correction is rapid and convenient.

The application discloses an intelligent diagnosis auxiliary system based on a medical knowledge graph and belongs to the medical diagnosis field. In order to solve the problem that a traditional medical diagnosis system is difficult to integrate information, a large amount of medical information is wasted, effective auxiliary diagnosis cannot be performed, the diagnosis efficiency is low, effective intelligent triage prediction cannot be performed, the patients are easily caused to have a burden of diagnosis, the hospital is easily caused to have a burden of operation, the work efficiency is low, corresponding diagnosis results cannot be given in time and quickly, and the diagnosis accuracy is influenced. The existing medical data island problem is overcome, the intelligent auxiliary diagnosis of common diseases is realized, the diagnosis efficiency is improved, the doctors are provided with high-credibility auxiliary diagnosis, the intelligent triage prediction is realized, the probability of wrong triage is reduced, the patients are provided with efficient and convenient pre-diagnosis consultation, the burden of the patients and the operation load of the hospital are reduced, the diagnosis accuracy of the diagnosis auxiliary system for comprehensive data analysis of patient information is gradually improved through human error correction.

The utility model discloses a cloth piece deviation rectifying mechanism which comprises a deviation rectifying platform, at least two deviation rectifying detection positions are arranged on the deviation rectifying platform, the at least two deviation rectifying detection positions are linearly arranged in the length direction of the deviation rectifying platform, a deviation rectifying assembly is arranged above the deviation rectifying platform, the deviation rectifying assembly comprises an installation frame, a motor I and a motor II, and the motor I and the motor II are arranged on the installation frame. The motor I and the motor II are linearly distributed in the length direction of the deviation rectifying platform, deviation rectifying wheels are mounted on rotating shafts of the motor I and the motor II, the lifting driving device is arranged beside the deviation rectifying platform, and the mounting frame is mounted on a lifting part of the lifting driving device. The cloth piece deviation rectifying mechanism is smooth in operation and high in working efficiency.

The application discloses a medical image kidney function dynamic prediction method, and relates to the technical field of medical images. The method comprises the following steps: judging whether the generation time of respiratory characteristic data and intestinal peristalsis characteristic data has a same-direction synchronous relationship; if so, marking a static position area around an original to-be-detected area which is not affected by the respiratory and intestinal peristalsis; according to the concentrated distribution characteristics of a first static marking area, changing the range of the original to-be-detected area; if the generation time of the respiratory characteristic data and the intestinal peristalsis characteristic data has a different-direction synchronous relationship, according to the dispersed distribution characteristics of a second static marking area, changing the range of the original to-be-detected area; if the generation time of the respiratory characteristic data and the intestinal peristalsis characteristic data has an asynchronous relationship, marking a static position area in the original to-be-detected area which is not affected by the intestinal peristalsis, and changing the range of the original to-be-detected area; and according to the changed detection area, detecting the CT data of the target patient by using a secondary multiphase CT and predicting the kidney function. The application can improve the dynamic prediction work efficiency.

The utility model discloses a kind of correction detection devices for adjusting concentricity of shaft coupling, including bottom plate and mounting plate, motor is fixedly installed on the mounting plate, the output end of the motor is installed with shaft coupling, the slider of the inclined abutment mounting plate is slidably arranged on the bottom plate, the fixed bolt of the through horizontal slot, vertical slot is equipped on the bottom plate, the nut of the fixed bolt is connected with the abutting pressure fixed mounting plate, digital level is installed on the mounting plate. By lateral sliding adjustment slider laterally arranged, to drive mounting plate to move left and right horizontally, and then by mounting plate driving shaft coupling on motor left and right horizontal displacement, to correct the lateral concentricity of shaft coupling, and by adjusting the slider laterally, vertically distributed to center or two sides, to drive mounting plate to move up and down, and then correct the up and down concentricity of shaft coupling, to improve the accuracy and convenience of shaft coupling concentricity correction.

A zoom optical system and an imaging device that corrects various aberrations well in a high zoom ratio range are provided. The zoom optical system is composed of a first lens group having positive refractive power, an intermediate group, and a subsequent group in order from an object side to an image side. The intermediate group is composed of three or less lens groups including a M1 lens group having negative refractive power disposed closest to the object side and a Mr lens group having negative refractive power disposed closest to the image side. A R1 lens group having positive refractive power is disposed closest to the object side of the subsequent group. The first lens group is stationary during zooming. When a focal length of the M1 lens group is fM1 and a focal length of the first lens group is f1, the zoom optical system satisfies the following condition: 0.05 < (-fM1) / f1 < 0.8.

The application discloses a parallel light tube with adjustable object distance and an optical device, and relates to the technical field of optical devices. The parallel light tube with adjustable object distance comprises a main mirror tube, a scale plate assembly, an objective lens assembly and a first adjusting assembly; the scale plate assembly is used for realizing light beam modulation and image presetting, and the objective lens assembly is used for projecting a light beam irradiated through the scale plate assembly; the scale plate assembly and the objective lens assembly are both inserted into the internal cavity of the main mirror tube, and the scale plate assembly is close to the inlet end of the main mirror tube, and the objective lens assembly is close to the outlet end of the main mirror tube; the scale plate assembly can move along the length direction of the main mirror tube, the peripheral wall of the main mirror tube has an adjusting port extending along the length direction of the peripheral wall, the first adjusting assembly passes through the adjusting port and is connected to the scale plate assembly, and is used for locking or unlocking the scale plate assembly; and the parallel light tube can meet the detection requirements of different object distance thermal imagers.

A flat-bulb steel straightening machine comprises a machine frame, a plurality of upper straightening wheels, a plurality of lower straightening wheels, upper wheel shafts corresponding to the upper straightening wheels in number and lower wheel shafts corresponding to the lower straightening wheels in number, and the upper straightening wheels are arranged at the front ends of the upper wheel shafts respectively and located in front of the machine frame. The lower correcting wheels are arranged at the front ends of the lower wheel shafts and located in front of the rack, and the upper correcting wheels are located between the two adjacent lower correcting wheels on the lower portion; the upper wheel shafts are arranged on a lifting body located in the machine frame, the machine frame is provided with a front sliding rail, a rear sliding rail and a rear sliding rail, a lifting driving mechanism is arranged on the top face of the machine frame, and the lifting driving mechanisms are connected with the lifting body.