60results about How to "Easy to correct" patented technology

The invention provides a precise and small broadband hyperspectral imager, which is used for solving the technical problem that the existing broadband spectral imager from visible near-infrared to short-wave infrared for sceneries cannot meet the increasingly harsh imaging requirements. According to the small broadband hyperspectral imager, the front optical assembly of an off-axis two-reflection structure and the spectrometer assembly in a free-form surface reflector, optical path multiplexing and axis folding mode are adopted, the number of used lenses is greatly reduced, meanwhile, the length of a spectrometer is effectively reduced, and the imaging precision is improved. The volume and the weight of the spectral imager are greatly reduced; besides, front surfaces and rear surfaces of a first lens and a second lens in the spectrometer assembly are plated with broadband antireflection films from visible near-infrared to short-wave infrared according to light angles, and broadband detection from visible near-infrared to short-wave infrared can be realized in combination with a broadband refrigeration type detector. And the complexity and the installation and adjustment difficulty of the detector assembly and the circuit assembly are greatly reduced.

The application provides an optical system, comprising: a lens barrel, an inner wall surface of the lens barrel is stepped along an extension direction of an optical axis of the optical system, and a distance from the inner wall surface of the lens barrel to the optical axis gradually increases from an object side to an image side of the optical system; first to fifth lenses sequentially accommodated in the lens barrel from the object side to the image side of the optical system, the fifth lens having a negative focal power; and at least five abutting members, wherein a fourth abutting member is in contact with an image side surface part of the fourth lens, and a fifth abutting member is in contact with an image side surface part of the fifth lens; wherein the effective focal length f5 of the fifth lens, the maximum thickness CP4 of the fourth abutting member, the distance EP45 from the image side surface of the fourth abutting member to the object side surface of the fifth abutting member along the optical axis, and the central thickness CT5 of the fifth lens satisfy: -40 < f5 / (CP4+EP45-CT5) < -5.0. The application solves the problem that high image quality and high stability are difficult to be considered in the prior art.

The application provides a VR detection lens, which comprises, in sequence from an object side to an imaging surface along an optical axis, an aperture, a first lens group with positive refractive power, a second lens group with negative refractive power, and a third lens group with positive refractive power; the lens satisfies the following conditions: 0.8<=|f20 / f|<=1.5, 33<=|f30 / f|<=40, and 4.0<=|f40 / f|<=5.0, wherein f is the focal length of the detection lens, f20 is the focal length of the first lens group, f30 is the focal length of the second lens group, and f40 is the focal length of the third lens group. The application has higher resolution and a larger field of view, can well simulate human eye observation, and realizes batch rapid detection of VR products.

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.

The application discloses a manufacturing method and a using method of a power fitting for stepless adjustment of sag, and belongs to the technical field of power fittings. The power fitting for stepless adjustment of sag comprises a double-end bolt with a rotating disc, the screw rod of the double-end bolt with the rotating disc is connected with a π-shaped nut with the rotating disc at two ends respectively, and the π-shaped nut with the rotating disc and the double-end bolt with the rotating disc are limited by a rotation blocking rod piece. The double-end bolt with the rotating disc mainly comprises a double-end bolt and a rotating disc. The double-end bolt with the rotating disc is manufactured by welding the rotating disc on the nut of the double-end bolt. The π-shaped nut with the rotating disc is installed at two ends of the screw rod of the double-end bolt. The rotation blocking rod piece is installed between the π-shaped nut with the rotating disc and the double-end bolt with the rotating disc. The application can not only greatly reduce the complexity of observation and adjustment of wire sag, but also facilitate correction of the unqualified sag found after acceptance of wire cutting.

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.

An intramedullary nail (1) for long bones, comprising: a tube (2) extending in an axial direction of the intramedullary nail (1), the tube (2) comprising a first through slot (21) aligned longitudinally in the axial direction; a first rod (3) extending in the axial direction and telescopically coupled within the tube (2), the first rod (3) further configured for axial displacement within the tube (2). The first rod (3) comprises a first hole (31) perpendicular to the axial direction and configured for receiving a first fastening screw (100), the first hole (31) being configured for axial displacement along the first through slot (21) to displace the first fastening screw (100) in the axial direction. The first rod (3) further comprises: a second hole (32) perpendicular to the axial direction; a guide element (5) housed in the second bore (32) and axially displaceable in the axial direction, the guide element (5) being enclosed within the outer contour of the tube (2) and configured for preventing a relative rotation of the first rod (3) with respect to the tube (2). (Figure 5)

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.

The embodiment of the specification provides an answer determination, question correction, question answer model training and question answering method, wherein the answer determination method comprises the following steps: obtaining a question title and target answer information of the question title; analyzing the question title to determine the content quantity of the to-be-answered content in the question title; extracting the initial answer of the to-be-answered content from the target answer information according to the content quantity; and performing format conversion on the initial answer based on the target subject information of the question title to obtain the target answer. By determining the content quantity of the to-be-answered content first, then extracting the initial answer based on the content quantity, and then performing format conversion on the initial answer based on the target subject information, the corresponding accuracy between the answer and the to-be-answered content can be improved, and the standardization and availability of the expression form of the target answer can be improved.

This application discloses a microscope objective optical system, relating to the field of optical instrument technology. The system includes a first lens group, a second lens group, and a third lens group. The three lens groups are configured such that the first lens group has positive refractive power, the second lens group has positive refractive power, and the third lens group has negative refractive power. Furthermore, the composition of each of the first, second, and third lens groups is defined, and their focal distances are defined and satisfy preset conditions. Based on this design, the microscope objective optical system has a long working distance, large aperture, high resolution, good imaging performance over a wide wavelength range, and well-corrected chromatic aberration.

The utility model belongs to the technical field of boiler fans, and particularly relates to a fan blade angle correcting device which comprises a rotating part and a fixed part, the rotating part comprises a dial, angle scribed lines are arranged on the dial, the dial is fixed at the top end of a blade rotating shaft, the fixed part comprises a mounting frame and a pointer, and the pointer is fixed on the mounting frame. The pointer is fixedly connected to the installation frame, the installation frame is fixedly installed on an impeller, the dial is rotationally connected to the installation frame, and the pointer points to the angle scribed line. During correction, one blade is detached, the dial is fixed to the blade rotating shaft, the mounting frame is fixed to the impeller, the blade adjusting mechanism drives the blade rotating shaft to rotate when working, the blade rotating shaft drives the dial to rotate, the dial synchronously rotates along with other blades, and the pointer points to the angle scribed line to display the rotating angle of the blade. Therefore, the rotation angle of the blade can be corrected conveniently, and the accuracy of the rotation angle of the blade is ensured.

The invention relates to the technical field of carton printing equipment, and discloses an automatic feeding device for carton color printing and a using method thereof. When the positioning shaft moves upwards, a second pushing plate can be driven to synchronously move upwards, at the moment, the second pushing plate rotates around the positioning shaft, the side wall of the second pushing plate and the side wall of a first pushing plate are located on the same plane when the second pushing plate integrally moves upwards, and at the moment, the side wall of the second pushing plate makes contact with the side wall of stacked paperboards; therefore, slight friction force can be generated when the second pushing plate moves upwards, upward acting force is applied to the paperboards, and the situation that when the stacked paperboards move towards the color printing device through a conveying belt at the top of the main body, the paperboards are conveyed obliquely, and the paper boards are conveyed obliquely is reduced. When the bottom paperboard moves, the paperboard located above falls down under the action of gravity and then makes contact with the bottom paperboard, so that part of the paperboards are folded, the side walls of the paperboards are kept flat, and the overall quality of automatic color printing feeding of the device on the paperboards is improved.

This invention relates to the field of projection technology, specifically to a projection device and system with adjustable position based on distance. The device includes a housing and a projection mounting plate mounted on top of the housing. A rotation control base is fixedly installed inside the housing, driving the projection mounting plate to rotate at a specific angle. A limiting groove is formed on the surface of the housing, within which an extension plate is slidably limited. The surface of the extension plate has driving teeth, and an intermediate gear meshes with the external of the driving teeth. This projection device automatically adjusts the rotation angle of the projection mounting plate based on the distance to the screen detected by distance sensors on both sides, ensuring that the projection centerline of the projector is perpendicular to the screen when viewed from above, facilitating image correction during installation, adjustment, and movement of the projector.

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.

An additional distance-increasing portrait lens for a mobile phone comprises eight lenses. The first lens R1 is equal to 44.5 to 45.5, and the second lens R2 is equal to 153.5 to 154.5; the R1 of the second lens is equal to 243.5 to 245.5, and the R2 of the second lens is equal to 78 to 79.5; the third lens R1 is equal to 33-34, and R2 is equal to 45-46; a fourth lens R1 is equal to 21.5 to 22.5, and R2 is equal to 76 to 77; the R1 of the fifth lens is equal to 36.5 to 37.5, and the R2 of the fifth lens is equal to 11 to 12; the sixth lens R1 is equal to 11 to 12, and the sixth lens R2 is equal to 44.5 to 45.5; the seventh lens R1 is equal to 44.5 to 45.5, and the seventh lens R2 is equal to 11 to 12; and the R1 of the eighth lens is 16-17, and the R2 of the eighth lens is 72.5-73.5. The lens of the utility model can control field curvature data and distortion data in a small range, well correct the field curvature data and the distortion data, and shoot remote portraits more clearly.

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 utility model discloses a heating device of a silicon carbide crystal growing furnace, which belongs to the field of growing furnace heating and comprises an operating platform, a heating device and a heating device. And the adjusting component is detachably mounted on the mounting plane of the operating platform. According to the heating device of the silicon carbide crystal growing furnace disclosed by the utility model, the second heating ring and the third heating ring are shifted up and down by loosening the limitation on the second heating ring and the third heating ring firstly, so that the positions of the second heating ring and the third heating ring can be adjusted; the first locking nut and the second locking nut are used for locking the second heating ring and the third heating ring after the positions of the second heating ring and the third heating ring are adjusted, so that the second heating ring and the third heating ring are locked through the first locking nut and the second locking nut. And the heating member can uniformly heat the growth furnace when the growth furnace is heated.

This invention provides a public-key encryption and decryption method based on rank distance, relating to the field of information security technology. The invention utilizes hybrid block noise with partially intersecting support sets to generate the public key. During encryption, the ciphertext is calculated by combining the block noise vector, the public key, and the generator matrix of the Augmented Gabidulin auxiliary code. Decryption is performed using the decoding algorithm of the Augmented Gabidulin auxiliary code. The hybrid block noise mechanism allows partial intersection of the support sets of the respective block noises, effectively reducing the total rank weight generated during decryption, making error correction easier, and greatly expanding the range of system parameters. Due to its ability to tolerate greater parameter flexibility and the efficient decoding capability of the Augmented Gabidulin auxiliary code, the size of the public key and ciphertext can be significantly reduced while maintaining similar security strength, ultimately improving the storage and transmission efficiency of the rank-distance-based cryptosystem.

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 optical system and an optical device comprising the same. The optical system comprises, in order from a first side to a second side along an optical axis, a first lens, a second lens, a reflective polarizing element, a quarter-wave plate, and a third lens. The second side of the second lens is a plane. The second side of the third lens is provided with a partial reflection layer. The radius of curvature R1 of the first side of the first lens, the central thickness CT1 of the first lens along the optical axis, and the Abbe number V1 of the first lens satisfy 55.0 < R1 / CT1+R1 / V1 < 221.

The utility model discloses an adhesive dispensing deviation rectifying device and battery production equipment. The adhesive dispensing deviation rectifying device comprises a bearing part, a rotary driving assembly, a movable driving assembly and an adhesive dispensing assembly. Wherein the bearing part is used for bearing a to-be-machined part, the rotary driving assembly is used for driving the bearing part to rotate, the movable driving assembly is used for driving the bearing part to move in at least two different directions, and the dispensing assembly is used for coating the to-be-machined part on the bearing part with an adhesive. The posture and the position of the bearing part can be flexibly and rapidly adjusted, and therefore the production efficiency can be improved.

The present application relates to the field of building structure energy dissipation construction, and discloses a method for hoisting viscous damping wall without support, which is suitable for concrete structure wall; the method comprises the following steps: determining two bearing holes on the concrete structure wall above the installation opening, setting bearing pull rods in the bearing holes, and forming detachable bearing connection through wall surface pressure bearing parts; setting adjustable hanging seats on the side of the bearing pull rods facing the installation opening, and adjusting the position of the upper lifting point in the wall thickness direction; setting lower guide supporting seats at the lower embedded steel plates; connecting two lifting parts with the adjustable hanging seats and the hoisting connection parts of the viscous damping wall respectively, setting synchronous differential parts, and then synchronously lifting the viscous damping wall; guiding the lower end of the viscous damping wall to laterally enter the position through the lower guide supporting seats, and completing correction, temporary fixation and welding fixation in the semi-unloading correction state. The method does not need to set up floor support, and can improve the stability of the viscous damping wall hoisting, positioning and welding before positioning in the narrow opening.

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 relates to the technical field of BOPP film processing, in particular to deviation rectifying equipment for B0PP film processing, which comprises a base and a supporting plate, the upper end of the base is slidably connected with the supporting plate, a deviation rectifying structure is arranged in the base, the right side of the upper end of the supporting plate is fixedly connected with a first straight plate, and the left side of the upper end of the supporting plate is attached to a second straight plate. According to the deviation rectifying equipment for B0PP film processing, through cooperation of a guide structure and a supporting plate, an operator rotationally takes down bolts on the two sides and pulls a second straight plate to the left side, so that the second straight plate drives a rotating disc to be separated from a guide roller, the operator pulls out the guide roller, and the guide rollers with different lengths and different grooves in the surface are replaced; the second straight plate corresponds to the threaded holes in the different positions, fixing of the second straight plate is completed, continuous machining is conducted, the guide roller can be replaced, the BOPP film deviation rectifying and conveying device is more convenient to rectify and convey BOPP films of different specifications, and the BOPP film deviation rectifying and conveying device is more convenient to use.

The utility model discloses a winding device for a high-barrier film, and relates to the technical field of winding devices for high-barrier films. The winding device for the high-barrier film comprises a bottom plate, a rotating disc is arranged at the top of the bottom plate, a positioning mechanism is arranged on one side of the rotating disc, and a deviation rectifying mechanism is arranged on one side of the rotating disc. According to the winding device for the high-barrier film, by arranging a positioning disc, when the high-barrier film wound on the outer surface of a winding paper tube needs to be rectified, firstly, a rotating button is rotated to make a positioning pad make contact with a winding shaft, a connecting tube and a connecting ring are fixed, and at the moment, the positioning disc makes contact with the side face of the winding paper tube; and when the high-barrier film wound on the outer surface of the winding paper tube deviates, the spring arranged on one side of the positioning disc is extruded and rebounds, so that the high-barrier film wound on the outer surface of the winding paper tube returns to the correct position, and the device is convenient for correcting the high-barrier film wound on the outer surface of the winding paper tube.

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.