20 results about "Lens fitting" patented technology

A rim lock camera accessory mount includes a connector on an attachment section that interfaces with a camera lens to secure the rim lock camera accessory mount to the camera lens. The attachment section connects to an accessory section in the rim lock camera accessory mount and may include a step between the attachment section and the accessory section. The accessory section provides an accessory which allows one or more camera filters to be installed on the camera lens and also attaches one or more accessories to the camera lens by the rim lock camera mount accessory mount.

The utility model discloses a camera lens protection mechanism belongs to camera lens accessories field, including camera main part, one side fixed connection of camera main part has lens body, the outside of lens body is wrapped with protection subassembly, is equipped with connecting assembly on the one side of protection subassembly to camera main part, protection subassembly is including the protection frame of the sleeve setting in the outside of lens body, the inside fixed connection of protection frame has the inside ring of wrapping in the outside of lens body, this camera lens protection mechanism, through setting up by drive motor, transmission screw, moving frame and linkage board constitute transmission system, can automatic control the opening and closing of two baffle, and user need not manual operation, can open baffle quickly when needing shooting, can close again after shooting ends, effectively avoided because manual operation is troublesome and missed the opportunity problem when shooting, greatly reduced the time of lens exposure in the dangerous environment such as dust, water vapor etc.

The invention relates to the technical field of data processing, in particular to an orthokeratology lens fitting integrated learning method based on corneal feature attention, and the method comprises the steps: S100, obtaining original input data; s200, dividing the original input data into a plurality of training subsets by a feature subset module through a medical prior grouping strategy or a dynamic importance grouping strategy, and training a base learner by using the plurality of training subsets, so that the base learner outputs a base learner predicted value; s300, enabling the original input data to enter a feature attention module, and obtaining a final attention fusion result; and S400, training a meta-learner according to the predicted value of the base learner and the final attention fusion result, so that the meta-learner outputs a final prediction result. According to the invention, the accuracy of the orthokeratology lens during fitting is improved.

The utility model discloses a vehicle-mounted lens high-precision lens laminating device which comprises a processing table, a feeding table is arranged above the processing table, an object placing plate is arranged above the feeding table, a first sliding groove is formed in the upper end of the feeding table, a sliding seat is arranged in the first sliding groove, and a second sliding groove is formed in the upper end of the first sliding groove. A third sliding groove is formed in the upper end of the storage plate, a clamping block is arranged above the storage plate, a second electric push rod is arranged in the third sliding groove, a beam frame is arranged above the machining table, a first transverse plate is arranged on the inner side of the beam frame, and a first electric push rod is arranged above the first transverse plate. A hollow plate is arranged below the first transverse plate, a third electric push rod is arranged above the hollow plate, a suction cup is arranged at the lower end of the hollow plate, a fixing clamp of the attaching device is fixed by making contact with the two sides of a vehicle-mounted lens through a plurality of clamping blocks, and the vehicle-mounted lenses of different shapes can be rapidly fixed by changing the movement amount of the clamping blocks; and the lens fitting efficiency is improved.

Computer-implemented tools to assist a clinician in selecting a lens or other optical element for an optimal patient treatment, such as correction, based on both the optical properties of the patient's eye and certain patient-specific use-case information such as viewing behavior or viewing preferences, or to effect treatment such as to control myopia progression. Clinicians, eye care professionals and others can provide patient-optimized lens fitting or design by use of the tools.

The invention discloses a lens fitting device and method, and the device comprises a measurement assembly which is used for obtaining the position data of the fitting surface of an upper lens and a lower lens through a plurality of measurement points; the leveling assembly is used for adjusting the postures of the upper lens and the lower lens; the control assembly is connected with the measuring assembly and the leveling assembly and can control the leveling assembly to act based on the position data so that the attaching surfaces of the upper lens and the lower lens can reach the preset parallelism. Multi-point position data acquisition is carried out on the binding face of the upper lens and the lower lens through the measuring assembly, so that the control assembly can obtain complete surface form information, the parallel state of the current binding face is accurately judged, and the adjustment amount is calculated. And the leveling assembly completes corresponding attitude correction according to the instructions. Through the cyclic process of measurement, calculation and execution, it can be ensured that the fitting surfaces of the upper lens and the lower lens reach the required parallelism, and the problem of insufficient fitting precision caused by incomplete measurement data is solved.

The invention provides a production and processing auxiliary device for lens accessories, and relates to the technical field of lens processing assistion.The production and processing auxiliary device comprises a workbench, a servo motor is installed on the workbench, a rotating frame is arranged on the servo motor, a vacuum suction cup is arranged on the rotating frame, a sliding groove is formed in the workbench, and a sliding frame is arranged in the sliding groove; a linear hydraulic damper is installed on the sliding frame, a control frame is arranged on the linear hydraulic damper, a mounting frame is arranged on the control frame, an ink uniformizing pen is arranged on the mounting frame, a handle is arranged on the control frame, and through the mode that mechanical guiding and hydraulic damping regulation and control are combined, the defects of uneven coating, out-of-control thickness, edge coating missing and the like existing in manual ink coating are effectively overcome; the repeatability, the consistency and the machining precision of the ink coating process are remarkably improved, the strict requirement of a high-precision optical lens for stray light control is met, and the method is suitable for automatic post-processing production of batch lens accessories.

This invention provides a method for rating the corrective effect of corneal topography after orthokeratology. It utilizes a mobile image acquisition system to collect corneal topography images of the user one month after lens wear. In a data segmentation and processing system, a deep learning model segments the effective optical zone and pupil within the corneal topography image. Medical indicators such as eccentricity, defocus, and effective defocus range are calculated and rated according to evaluation criteria. The results are finally output to visual hardware. This invention provides a method for rating the corrective effect of corneal topography after orthokeratology. By leveraging the segmentation capabilities of a deep learning model, the effective optical zone and pupil in the corneal topography image can be accurately segmented, and the corneal topography can be rated based on calculated medical indicators. This avoids subjective interference from the operator during lens fitting, and overall, this invention can significantly reduce the fitting workload of optometrists.

The invention belongs to the technical field of digital lens accessories, and particularly relates to a safety protection device and method for a zoom visual lens. One end of the positioning plate is slidably connected with a linkage plate, an extension spring is arranged between the inner wall of the linkage plate and one end of the positioning plate, the other end of the positioning plate is fixedly connected with a lens protection plate, and the bottom end of the inner wall of the lens protection plate is further provided with a mounting groove. The zoom visual lens of the smart phone is sleeved and protected through the three lens protection assemblies, and then air flow is transmitted to the lens protection assemblies, the supporting assembly and the air bag ring through the air transmission assembly, so that the supporting assembly cleans the environment near the zoom visual lens. The air bag ring forms a buffering effect surrounding the zoom visual lens after being inflated, and then an operator manually rotates a plastic gear, so that the three groups of lens protection assemblies rotate to guide the air flow transmitted by the air transmission assembly, and the mirror surface of the zoom visual lens is cleaned and dried.

The invention is suitable for the technical field of lens matching optimization, and particularly relates to an out-of-focus lens structure parameter optimization method and system fusing eyeball adaptation parameters, and the method comprises the steps: recording the eyeball adaptation parameters of a user and out-of-focus lens structure parameters, and constructing a lens matching database; recording eyeball adaptation parameters according to a time sequence, constructing a change curve of each parameter, and generating a parameter change prediction function; generating a prediction parameter, and comparing the prediction parameter with a recently collected eyeball adaptation parameter to obtain a parameter difference value; constructing a basic lens structure parameter, and correcting the basic lens structure parameter based on the parameter difference value to obtain an out-of-focus lens parameter of the lens fitting. By constructing a systematic basic lens structure parameter generation process, accurate conversion from original eyeball parameters to manufacturable lens structures is realized, the accurate adaptation effect of the lenses in the initial wearing stage is effectively guaranteed, and a solid technical foundation is laid for subsequent dynamic optimization.

The application provides a progressive lens function area division method, comprising: establishing a lens view point coordinate prediction model special for a lens fitting user; collecting first input information of the lens fitting user when performing a viewing task while wearing a correction trial lens, and correcting a deviation of a pupil center coordinate in the first input information caused by optical refraction of the correction trial lens; inputting the corrected first input information into the lens view point coordinate prediction model special for the lens fitting user, and obtaining corresponding lens view point coordinates through the lens view point coordinate prediction model; and performing lens function area division on the lens actually worn by the lens fitting user based on the obtained lens view point coordinates. The application improves the problem of lacking personalized parameters in conventional fitting; and a corresponding compensation correction method is provided for the problem that the lens optical refraction causes deviation of the camera recorded pupil position from the actual pupil position after the superposition of multiple trial lenses, and the tracking of the lens view point is affected.

The application relates to the technical field of glass lens processing, in particular to a glass lens bonding process and equipment, the bonding equipment comprises a bottom base, a moving seat and a driving unit; a plurality of supporting columns for supporting the bottom of a lens one and a positioning plate for clamping the side edge of the lens one are arranged on the bottom base; the moving seat is installed at the working end of the driving unit, a suction disc for adsorbing a lens two is arranged at the bottom of the moving seat, a plurality of adjusting columns are arranged on the periphery of the suction disc, the adjusting columns are attached to the upper side of the lens two, and the adjusting columns are used for adjusting the angle of the lens two adsorbed by the suction disc; the supporting columns and the adjusting columns can lock the positions of the supporting columns and the adjusting columns through locking units; the technical scheme can bond the lens one and the lens two with different radian and curvature through the plurality of supporting columns and adjusting columns, the angle of the lens one and the lens two can be adjusted to be the same during processing, the intensity of each part of the lens one and the lens two during bonding is ensured to be the same, and the bonding effect is ensured.

The application discloses a kind of mirror frame inner edge profile size measurement methods, it is related to measurement technical field, including the following steps: S1, pixel equivalent calibration;S2, image information acquisition;S3, mirror frame horizontal size and vertical size acquisition;S4, mirror frame frame slot size acquisition;S5, information supplement.The mirror frame inner edge profile size measurement method uses area array CCD camera to collect the image of the measured spectacle frame, image processing is carried out to the image acquisition result, realizes the efficient, accurate measurement of the inner edge profile size of the mirror frame, and the measurement method is different from the traditional contact type measurement, with the advantage of fast measurement speed, not only measure the horizontal size and width size information of the spectacle frame, but also supplement the frame slot and the missing inner contour information of the mirror frame, high-order curve fitting is carried out to the missing part contour, and finally the inner edge contour of the spectacle frame is restored, which meets the consumer demand of mirror frame online selection and remote lens fitting in the current Internet era.

This invention relates to the field of data processing technology, and more particularly to an integrated learning method for orthokeratology lens fitting based on corneal feature attention. The method includes: S100, acquiring raw input data; S200, a feature subset module dividing the raw input data into multiple training subsets using a medical prior grouping strategy or a dynamic importance grouping strategy, and using these multiple training subsets to train a base learner, which then outputs its predicted values; S300, the raw input data entering a feature attention module to obtain a final attention fusion result; and S400, training a meta-learner based on the base learner's predicted values ​​and the final attention fusion result, which then outputs its final prediction result. This invention improves the accuracy of orthokeratology lens fitting.

The utility model relates to a progressive multifocal lens fitting experience frame, and belongs to the technical field of lens fitting. Comprising an interpupillary distance adjusting mechanism used for adjusting the interpupillary distance corresponding to fitting mirror frames on the two sides of the whole fitting experience frame, the two fitting mirror frames are symmetrically and fixedly welded to the two sides of the interpupillary distance adjusting mechanism and used for installing lenses with different luminosities, and a clamping mechanism is further connected to the middle position of the interpupillary distance adjusting mechanism. The clamping device is used for clamping the whole fitting experience frame on glasses of a fitting person; the interpupillary distance adjusting mechanism comprises an adjusting mechanism middle layer clamped in the middle, a metal cover plate and an interpupillary distance marking bottom plate are arranged on the upper surface and the lower surface of the adjusting mechanism middle layer respectively, and the middle layer, the interpupillary distance marking bottom plate and the metal cover plate are fixedly connected into a whole through locking screws.

The utility model relates to the technical field of optometry glasses, in particular to a glasses testing frame and a glasses testing suite. The trial glasses frame comprises a framework, glasses legs, two lens frames and two rotating units; the frame is provided with two spectacle rings, and the spectacle legs are connected with the frame; the two lens frames correspond to the two lens rings respectively, the two lens frames correspond to the two rotating units respectively, and each lens frame is rotationally connected to the corresponding lens ring through the corresponding rotating unit. The lens testing frame is applied to the lens testing suite, is simple in structure and convenient to use, and can be convenient for an operator to rotate and adjust the position of the lens according to requirements in the lens testing process, so that the adaptation degree in the lens fitting process can be improved, and the lens testing efficiency is improved.

The application relates to a 3D lens fitting method, a fitting device and a 3D lens production method. In the 3D lens fitting method, a plurality of first soft glue points are tightly attached to a convex surface, a plurality of second soft glue points are tightly attached to a concave surface, a first fitting area where the plurality of first soft glue points are tightly attached to the convex surface and a second fitting area where the plurality of second soft glue points are tightly attached to the concave surface are taken as visual features and recognized by a visual scanner to obtain a first group of point clouds and a second group of point clouds, fitting path information is obtained after the first group of point clouds and the second group of point clouds are fitted, and the convex surface and the concave surface are adjusted in spatial position and posture and are mutually fitted by using the fitting path information. In this way, the plurality of first fitting areas and the plurality of second fitting areas are used to intuitively reflect the convex surface and the convex surface curved surface form, the effective fitting of the middle curved surface area of the convex surface and the concave surface is preferentially ensured, better fitting effect is achieved, air bubbles are avoided, and the product quality is improved.

This utility model discloses a high-precision lens fitting fixture structure, relating to the field of optical lens processing technology. It includes a support platform and a fixture body. An electric slide rail A is mounted on the upper surface of the support platform. A movable plate is slidably mounted on the outer surface of the electric slide rail A. A connecting plate is mounted on the upper surface of the movable plate, and an electric slide rail B is mounted on the outer surface of the connecting plate. This utility model allows the corresponding fixture body to be quickly pushed out of the placement slot using an electric push rod B, facilitating subsequent replacement operations. The combined use of an electric telescopic rod A and an electric push rod A allows the fixture body to be replaced into the slot, enabling different fixture bodies to adapt to lenses of different specifications, improving processing flexibility and accuracy. The combined use of an electric telescopic rod C and a push block allows the clamping block to stably fix the placed lens, ensuring that the lens does not move during processing, thereby improving processing accuracy and lens quality.

A dome camera arrangement comprises one or more camera heads arranged in a transparent dome Each camera head comprises an optics unit, a panning device and a tilting device for moving the camera head in panning and tilting movements, respectively. The tilting device has a pivot portion and a cradle portion. The camera head further has a roll device for rotating the optics unit in a roll movement. A compensation lens is arranged in a compensation lens fitting in front of the optics unit, and the compensation lens fitting is connected to the panning and tilting device, such that the compensation lens will move with the camera head in panning and tilting movements. However, the compensation lens fitting is disconnected from the same features such that the compensation lens will not follow the optics unit in roll movement, thus enabling an adequate optical compensation by the compensation lens.

The application provides an optical lens adjusting device and an adjusting method thereof. The device comprises a lens mounting part, a height indicating part, a horizontal rotation adjusting part, a height locking part, a horizontal displacement adjusting part and a pitch adjusting part. The lens mounting part is used for fixing the optical lens inside. The height indicating part is used for adjusting and indicating the height of the optical lens. The horizontal rotation adjusting part is used for adjusting the horizontal angle between the side surface of the optical lens and the side surface of the horizontal rotation adjusting part. The height locking part is used for locking the position of the lens mounting part after the optical lens is adjusted to the required height. The horizontal displacement adjusting part is used for adjusting the relative displacement of the horizontal rotation adjusting part and the pitch adjusting part projected on the reference surface. The pitch adjusting part is used for adjusting the pitch angle of the bottom surface of the horizontal displacement adjusting part and the reference surface. The application can realize the five-dimensional adjustment of the optical lens along the transverse axis, the longitudinal axis, the vertical axis, the rotation around the vertical axis and the pitch angle, avoids the adjusting mode of changing the thickness of the gasket in the prior art and has high adjusting precision.