38 results about "Lens fitting" patented technology

A lens barrel comprising bayonet type mount projections to detachably attach to a lens-fitting unit of a camera body having a photographic region, wherein mount projections are formed to avoid cross-section of light path area where object light is introduced in the camera body.

A spectacle lens frame shape measuring apparatus includes a holding device including upper pins and lower pins respectively holding upper rims and lower rims of frames for a spectacle lens, the upper pins holding the frames at different positions in a right-left direction from the positions at which the lower pins hold the frames and being placed at a same height as the lower pins in a vertical direction, a probe brought into contact with lens fitting grooves of the frames held by the holding device, a swinging mechanism swinging the holding device around a predetermined virtual axis, and a calculation controller calculating an axial shift amount or angle of the frames held by the holding device on the basis of a carved angle of the frames and an inclination angle of any one of the upper and lower rims, and correcting a shape of the frames obtained by the probe in accordance with the calculated axial shift amount or angle.

A camera lens accessory holder includes an attachment ring configured to couple to a camera lens accessory such as a lens cap or filter, a base coupled to the attachment ring and a holder mount coupled to the base opposite the attachment ring for removably attaching the holder to an external support structure. The base optionally includes a logo surface facing the attachment ring and optionally includes one or more visual elements such as a logo, text, photograph, or symbol. Some embodiments of a camera lens accessory holder include more than one attachment ring. Other embodiments are provided with means for attaching two holders to each other, one each on opposite sides of a flexible strap or belt. Some embodiments include a clip for attachment of a camera lens accessory holder to a belt, strap, or thin sheet of material.

A lens barrel comprising bayonet type mount projections to detachably attach to a lens-fitting unit of a camera body having a photographic region, wherein mount projections are formed to avoid cross-section of light path area where object light is introduced in the camera body.

A projector apparatus and a lamp fixation structure for use with the projector apparatus are disclosed. The lamp fixation structure has a lower holder, which includes an integrally formed lower holder lens section and a lower holder lamp section. The lower holder lens section defines a lens fitting slot for fixing a lens, and a lower holder lamp section defines a lamp fitting slot for fixing a lamp. The lens fixing slot includes an upper holder connected to the lower holder. The lamp fixation structure also includes an integrally formed metal holder, which has an elastic top plate, elastic lateral plates, a front plate, an elastic bottom plate, and elastic jointing plates. The inventive lamp fixation structure of the projector apparatus consists of a fewer components and can be assembled in a simple manner, yet it is highly wrought.

A pair of eyeglasses includes a lens, a couple of right and left elastically deformable frames attached to respective side end portions of the lens, and a couple of right and left temples attached to the respective frames. A frame fitting portion is provided at each of the side end portions of the lens and a lens fitting hole is provided in a front portion of each of the frames. The frame fitting portion fits into the lens fitting hole so that the lens is detachably attached to each of the frames. The volume of the frames is reduced to lighten the weight of the eyeglasses as a whole. With the eyeglasses, a forward vision of a wearer is guaranteed when he leans forward, and easy lens exchange is achieved.

A camera lens accessory holder includes an attachment ring configured to couple to a camera lens accessory such as a lens cap or filter, a base coupled to the attachment ring and a holder mount coupled to the base opposite the attachment ring for removably attaching the holder to an external support structure. The base optionally includes a logo surface facing the attachment ring and optionally includes one or more visual elements such as a logo, text, photograph, or symbol. Some embodiments of a camera lens accessory holder include more than one attachment ring. Other embodiments are provided with means for attaching two holders to each other, one each on opposite sides of a flexible strap or belt. Some embodiments include a clip for attachment of a camera lens accessory holder to a belt, strap, or thin sheet of material.

A lens accessory mounting device for mounting a lens accessory to a front end of a lens barrel, an outer diameter of the lens accessory being substantially the same as an outer diameter of the front end of the lens barrel, the lens accessory mounting device includes at least one inward bayonet lug which projects radially inwards from an inner peripheral surface of a front end of the lens barrel; and at least one outward bayonet lug which projects radially outwards from the lens accessory to be engageable with the two inward bayonet lugs, respectively. The outward bayonet lug is firstly inserted into the front end of the lens barrel and subsequently brought into engagement with the inward bayonet lug, respectively, when the lens accessory is mounted to the lens barrel.

A spectacle lens frame shape measuring apparatus includes a holding device including upper pins and lower pins respectively holding upper rims and lower rims of frames for a spectacle lens, the upper pins holding the frames at different positions in a right-left direction from the positions at which the lower pins hold the frames and being placed at a same height as the lower pins in a vertical direction, a probe brought into contact with lens fitting grooves of the frames held by the holding device, a swinging mechanism swinging the holding device around a predetermined virtual axis, and a calculation controller calculating an axial shift amount or angle of the frames held by the holding device on the basis of a carved angle of the frames and an inclination angle of any one of the upper and lower rims, and correcting a shape of the frames obtained by the probe in accordance with the calculated axial shift amount or angle.

A pair of eyeglasses includes a lens, a couple of right and left elastically deformable frames attached to respective side end portions of the lens, and a couple of right and left temples attached to the respective frames. A frame fitting portion is provided at each of the side end portions of the lens and a lens fitting hole is provided in a front portion of each of the frames. The frame fitting portion fits into the lens fitting hole so that the lens is detachably attached to each of the frames. The volume of the frames is reduced to lighten the weight of the eyeglasses as a whole. With the eyeglasses, a forward vision of a wearer is guaranteed when he leans forward, and easy lens exchange is achieved.

A vehicular lamp having a projection-type light source unit installed in its lamp chamber. The projection-type light source unit includes a reflector that has a light source and a cylindrical lens holder that is disposed on the front end of the reflector and is provided with a convex lens at its front end so that the peripheral portion of the convex lens is fixed to the front edge of the lens holder by a lens fixture. The lens holder has, on the inner or interior side of the front edge, a lens engaging portion so that the peripheral portion of the convex lens is engaged with this lens engaging portion from behind, and the convex lens is securely held at its peripheral portion on the lens engaging portion by the lens fixture (a lens fitting, a fastening screw, a boss having a screw hole) provided inside the lens holder.

The invention relates to fitting equipment and a lens fitting method. The fitting equipment comprises a light source for emitting an incident light beam, a workbench and a detector. The workbench comprises a first jig and a second jig. The refractive index of the first jig is smaller than the refractive index of the second jig. The first jig is provided with an incident surface and a first reflecting surface which are oppositely arranged, and the incident surface is used for receiving the incident light beam. The second jig is provided with a second reflecting surface, the first reflecting surface is abutted against the second reflecting surface and is used for reflecting the incident light beam, and the incident light beam is reflected to form the reflected light beam. The workbench is used for containing at least two workpieces, and the reflected light beam passes through the workpieces to form an emergent light beam. The detector is used for detecting the intensity of the emergent light beam to determine whether the workpieces are aligned or not. The fitting equipment has the AA alignment function. By the adoption of the lens fitting method, an APF film is adhered to a lens through UV OCA glue, alignment between the APF film and a QWP film can be ensured, and the needs of the optical path design are satisfied.

The invention discloses a lens automatic mounting device and a method. The lens automatic mounting device comprises an ocular lens fitting a feeding mechanism, an ocular lens fitting b feeding mechanism, an ocular lens fitting b oil brushing mechanism, an ocular lens feeding mechanism, an ocular lens mounting mechanism, an ocular lens overturning and screw hitting mechanism, an anti-dazzling screen mounting mechanism, an ocular lens station transmission mechanism, an object lens fitting a feeding mechanism, an object lens fitting b feeding mechanism, an object lens fitting a oil brushing mechanism, a material distributing mechanism, an object lens feeding mechanism, an object lens mounting mechanism, an object lens station transmission mechanism, an object lens and ocular lens mounting mechanism, a double station screw hitting mechanism, and a product material recovering mechanism. The problem of the prior art is that the assembling process of the lens assembly is complicated and low in efficiency. By developing a set of fully-automatic assembling device, the automatic feeding, automatic assembling, automatic material blanking of the lens can be realized, and manual operations can be completely replaced. The precision and yield of lens assembling can be enhanced, and the assembling efficiency of lens can be greatly improved, and the usage demand of practical production can be met.

The invention discloses a parameter processing method and related equipment based on orthokeratology lens fitting, and the method comprises an obtaining step: obtaining instantaneous refractive power characteristic data of a to-be-measured cornea and to-be-measured eye measurement parameters of a patient; an evaluation step: simulating a cornea parameter map of the corrected cornea to be measured, wherein the cornea parameter map is generated according to the instantaneous refractive power characteristic data and the measurement parameters of the eye to be measured and used for predicting lens parameters matched with the eye to be measured, and the lens parameters comprise OK lens height difference parameters; and an output step: extracting the corrected cornea parameter map data of the to-be-measured cornea, and outputting a height difference parameter prediction result according to a preset linear regression algorithm. The important glasses matching parameters and the height difference parameters of the patient to be tested are accurately predicted by applying the linear regression algorithm, and the technical problems that the height difference parameters are large in error and low in glasses matching reliability in the current manual experience glasses matching are solved.

The invention discloses a spectacle which comprises lens bodies, a spectacle frame and sight protection means, wherein, a transparent circular bladder is provided in each lens body and is connected with a corresponding filling opening. When a wearer wants to adjust the strength of lenses, a syringe is inserted into the filling openings, the amount of liquid in the bladders is changed by regulating a dial on the syringe so as to adjust the strength of the lenses to an extent sufficient enough to satisfy the wearer, then the bladders are sealed, the syringe is taken off, and therefore, a spectacle fitting the wearer is prepared; the filling openings are sealed with screws. According to the invention, the strength of the lens bodies of the spectacle can be adjusted, and the spectacle has a health care function; an operation method is fairly simple, a wearer can totally master the method almost without any guidance, a low cost is achieved, and therefore, the problem of difficult lens fitting for people in impoverished areas where optometrists are in shortage can be overcome.

An accessory for use with a phone or tablet computer. The accessory connects to the phone, either by enveloping the phone with a case-like element or clipping to the side of the phone with a clip. A hinged lens covers at least a portion of the screen and pivotally connects to the connection portion. This lens can be tilted up from the screen to increase the effective prescription of the lens, enlarging the text and images on the screen of the phone, or can be tilted back down towards the screen to reduce the effect.

The invention discloses an optical lens accessory, which comprises a cylinder and an annular shell, wherein rotating shafts are arranged on the inner side and the outer side of the outer wall of the cylinder; the outer part of the rotating shaft is connected with a rotating gear through a second torsional spring; a first tooth block and a second tooth block are connected to the two sides of the rotating gear in an engaged mode correspondingly; a fixing base is further integrally installed at the bottom of the outer side of the protective cover; a fixing rod is integrally installed at the bottom of the fixing base; the outer portion of the fixing rod is connected with the inner wall of a reserved groove through a first torsional spring; and the reserved groove is formed in the top end of the outer side of the annular shell in a penetrating mode. According to the optical lens accessory disclosed in the invention, during the using process, the whole protective lens is very convenient to assemble and disassemble, the exterior of the whole protective lens has good shock resistance in the using process, the phenomenon that the whole protective lens is seriously damaged when being subjected to external impact force is avoided, and the phenomenon that installation is loosened cannot occur.

The invention discloses a data processing method and related equipment based on orthokeratology lens fitting, and the method comprises the following steps: an obtaining step: obtaining instantaneous refractive power characteristic data of a to-be-measured cornea and to-be-measured eye measurement parameters of a patient; in the evaluation step, a cornea parameter map of the corrected cornea to be measured is simulated, and the cornea parameter map is generated according to the instantaneous refractive power characteristic data and the measurement parameters of the eye to be measured and used for predicting lens parameters matched with the eye to be measured; and an output step: extracting the corrected cornea parameter map data of the to-be-detected cornea, and outputting a fitting result according to a preset algorithm. And the trained model is used to accurately predict the glasses matching of the patient to be tested, so that the technical problems of low efficiency, large error and low reliability of the current glasses matching based on artificial experience are solved.

The invention discloses a lens fitting and adjusting device, which is used for installing and adjusting a lens (2), which comprises a cavity (1), a lens support frame (3), a holding pressure system (4) and a supporting system (5). The bottom wall of the body has a through hole. The lens support frame is located in the cavity for supporting the lens. The holding pressure system is used to fix the lens on the lens support frame. The support system penetrates into the cavity through the through hole of the cavity. The part is fixedly connected with the bottom of the lens support frame. The supporting system includes an upper flange, a lower flange, a bellows and a supporting screw. The upper flange and the lower flange are respectively fixedly connected with the two ends of the bellows and aligned axially, and a through hole is opened in the center. The supporting screw passes through the through hole of the cavity and the through hole of the axis of the lower flange, the bellows and the upper flange in turn, and abuts against the bottom of the lens support frame. The invention can realize the three-dimensional adjustment of the lens and the lens support frame, and isolate the vibration influence of the vacuum pump group on the lens.

The invention relates to the technical field of precision lens accessories, and particularly relates to a 360-degree shooting outer side lens for external connection of a camera and a use method thereof. The 360-degree shooting outer side lens comprises a fixing module, a positioning module, a supporting module, a first lens module, a second lens module, a third lens module and a connecting module, wherein the positioning module is arranged at the bottom end of the inner side of the fixing module, and the fixing module is connected with the positioning module in a clamped mode. According to the 360-degree shooting outer side lens, the fixing module, the first lens module and the connecting module are arranged, the arrangement is matched with the clamping of the fixing module and the positioning module, the clamping of the positioning module and the supporting module, the clamping of the supporting module and the connecting module, the fixed connection of the first lens module and the fixing module, the fixed connection of the second lens module and the positioning module, and the fixed connection of the third lens module and the supporting module, so that when a device is machinedand used, the expenditure of the lens development cost is reduced, the process difficulty of lens manufacturing is reduced, and the development efficiency of the lens is guaranteed.

The invention discloses a lens automatic mounting device and a method. The lens automatic mounting device comprises an ocular lens fitting a feeding mechanism, an ocular lens fitting b feeding mechanism, an ocular lens fitting b oil brushing mechanism, an ocular lens feeding mechanism, an ocular lens mounting mechanism, an ocular lens overturning and screw hitting mechanism, an anti-dazzling screen mounting mechanism, an ocular lens station transmission mechanism, an object lens fitting a feeding mechanism, an object lens fitting b feeding mechanism, an object lens fitting a oil brushing mechanism, a material distributing mechanism, an object lens feeding mechanism, an object lens mounting mechanism, an object lens station transmission mechanism, an object lens and ocular lens mounting mechanism, a double station screw hitting mechanism, and a product material recovering mechanism. The problem of the prior art is that the assembling process of the lens assembly is complicated and low in efficiency. By developing a set of fully-automatic assembling device, the automatic feeding, automatic assembling, automatic material blanking of the lens can be realized, and manual operations can be completely replaced. The precision and yield of lens assembling can be enhanced, and the assembling efficiency of lens can be greatly improved, and the usage demand of practical production can be met.

The invention discloses an intelligent evaluation auxiliary system and method for an orthokeratology lens. The system comprises a parameter obtaining module which is used for obtaining the lens matching parameters and basic features of a patient; a corneal topographic map database used for storing corneal difference topographic maps before and after lens fitting; a marking module used for presetting marks of a real area and a central point in the cornea difference topographic map; a model building module used for building an orthokeratology lens evaluation auxiliary model according to the lens matching parameters, the basic features and the cornea difference topographic map of the patient and the real treatment area and the mark of the center point; and a model evaluation module used for evaluating the orthokeratology evaluation auxiliary model according to a preset evaluation index and outputting an evaluation result. According to the system and the method, an orthokeratology lens fitting basis can be provided, and a doctor or a photosist can quickly and accurately provide a lens fitting processing opinion according to the lens fitting basis, so that the lens fitting accuracy is ensured, and the lens fitting efficiency is greatly improved.

The invention belongs to the field of ophthalmic optics, and provides a free-form surface single-focus astigmatism lens for hyperopia correction and a design method, the lens is a circular positive lens, the outer surface is a spherical surface or an aspheric surface, and the inner surface is a toroidal surface; the method comprises the following steps: firstly, comprehensively considering a single-eye independent pupil distance, a nose bridge width, a pupil height, a lens edge cutting margin, selected lens frame data and prescription parameters of a lens fitting person to obtain the minimum diameter of the lens; the cutter edge position is set according to the base arc position of the scattered sheet in the toroidal curved surface, so that the cutter edge position is close to the optical center of the lens as far as possible, the center thickness of the lens is reduced to the maximum extent, and the lens subjected to edge cutting and racking obtains the optimal light and thin effect; the inner surface of the lens adopts a toroidal curved surface design, so that off-axis aberration at the periphery of the lens is eliminated, the clear view field at the periphery of the lens is expanded, and the contrast sensitivity of imaging is enhanced; compared with an aspheric lens with an optical design surface on the outer surface, the aspheric lens has the advantage of comfort.

The invention relates to a real-time compensating optical system installation and adjustment equipment. The laser interferometer, depth measuring instrument and interferometer of the equipment respectively transmit the measured surface shape accuracy, thickness and surface curvature radius of each lens to the calculation unit, The centering instrument monitors and adjusts the lens inclination and eccentricity online and transmits the measured data of the lens inclination angle and eccentric distance to the calculation unit; the mirror positioner measures the distance between the lens and the previous lens and transmits the measured data to the calculation unit; for the first lens of the optical system , the calculation unit calculates the adjustment guidance data according to its theoretical adjustment data and independent variable parameters; for any subsequent lens, the calculation unit calculates the adjustment according to its theoretical adjustment data, independent variable parameters and the accumulated deviation value of the actual detection data of the previous lenses. Lens adjustment guide data. The invention can perform real-time compensation according to the actual detection data of each lens, guide the adjustment of the next lens, and realize the rapid adjustment of the high-end microscopic objective lens.

The invention discloses an optical lens accessory for panoramic image shooting, which is used in conjunction with the terminals of two camera devices, including: an optical device, including two fisheye lenses, which are arranged in a back-to-back manner, and the viewing angle directions are back-to-back, and the fisheye The viewing angle of the lens is greater than 180 degrees, and the viewing angles are taken from the respective viewing angle directions, and the viewing light is also introduced into the camera device; the housing device is arranged outside the optical device, does not interfere with the viewing angle range of the fisheye lens, supports the optical device, and connects the viewing light to the external Separation of non-framing light rays; fixtures for attaching optical lens accessories to the adapted terminal without interfering with the viewing angle range of the fisheye lens. Through the above method, the present invention can quickly realize the user's demand for panoramic shooting, greatly reduce the user's use cost, and improve the user's actual experience.

The invention discloses an AI intelligent lens fitting system and method based on big data analysis, and the system comprises a client which is used for enabling a doctor to input the cornea information of a patient and the demands of the patient, and obtaining the lens parameter information calculated by an intelligent operation unit; and an intelligent operation platform which is used for performing intelligent AI calculation on lens parameters based on big data, cornea information of the patient and individual requirements of the patient. The method comprises the following steps: S1, acquiring diopter and cornea parameters of a patient by the doctor; s2, inputting the diopter and cornea parameters of the patient at the client and uploading the diopter and the cornea parameters to the intelligent operation platform; s3, inputting personalized requirements of the patient at the client, specifically including focusing on myopia control, focusing on refraction correction and the like; S4, the intelligent operation platform intelligently calculates and stores lens parameters based on the big data, the cornea information of the patient and the personalized requirements of the patient; and S5, the intelligent operation platform feeds back the lens parameters to the client and presents the lens parameters to the doctor. The lens matching efficiency of the doctor for the patient can be greatly improved.

The invention relates to the field of contact lenses for eyes, in particular to an orthokeratology lens fitting method. The method is characterized by comprising the following steps of: 1, calculating an AC (Alternating Current) value; 2, performing parameter operation; and 3, demonstrating the legend. The method is high in efficiency and precision, and is a mainstream control method for preventing and controlling myopia of children.

The invention discloses an optical lens accessory, which comprises a cylindrical body and an annular casing. Rotating shafts are arranged on the inner and outer sides of the outer wall of the cylindrical body, and the outer part of the rotating shaft is connected with a rotating gear through a second torsion spring. And the positions on both sides of the rotating gear are engaged with the first tooth block and the second tooth block respectively, the outer bottom position of the protective cover is also integrally installed with a fixed seat, and the bottom of the fixed seat is integrally equipped with a fixed rod, and the fixed rod The outside of the shell is connected to the inner wall of the reserved groove through the first torsion spring, and the reserved groove is provided through the outer top position of the annular shell. During the use of the optical lens accessory, the installation and disassembly of the entire protective lens is very convenient, and the outside of the entire protective lens has good shock resistance during use, and the entire protective lens is subjected to external impact force There will be no serious damage when it is installed, and there will be no loose installation.