140 results about "Contact lens" patented technology

This invention discloses an iontophoresis gel scleral contact lens and its preparation method, comprising a contact lens frame, a polymer porous microsphere drug-carrying layer loaded with nano-sustained-release drugs, an electrode layer, and a flexible material covering the electrode layer on the contact lens frame, and a gel layer covering the outer side of the contact lens frame. This iontophoresis gel scleral contact lens has a simple structure, facilitates convenient and rapid drug delivery, and provides sustained-release efficacy. It allows patients to self-administer the drug, directly delivering it to the intraocular lesion site, avoiding adverse reactions in other tissues or the whole body, and has a sustained-release function to reduce the frequency of drug administration.

The product relates to the technical field of contact lens processing, and provides a kind of contact lens injection mold rapid feeding equipment, the equipment includes arrangement device, for vibration arrangement and conveys injection mold.Transmission device, it is arranged at one side of arrangement device, for conveying injection mold.Clamping device, it is arranged at the output end of transmission device, for clamping and moving injection mold.Injection device, it is arranged at one side of clamping device, for injecting liquid raw material into injection mold.In which, clamping device moves injection mold to injection device.The equipment carries out injection mold transmission feeding through the mutual cooperation of arrangement device, transmission device and clamping device, improves processing efficiency, reduces artificial cost.

We provide contact lenses to address the shortcomings of conventional technology. [Solution] The present invention discloses a contact lens. The contact lens comprises a lens body and electronic components. The lens body is configured to be worn on the eyeball and includes an optical portion and an annular mounting portion surrounding the optical portion. The annular mounting portion has a C-shaped lower eyelid placement region. The electronic components are provided on the lens body. The electronic components are movable with the eyeball via the lens body and include a stimulator and a power supply unit electrically connected to the stimulator. The stimulator includes an electrode module positioned inside the lower eyelid placement region and a boost control module electrically connected to the electrode module. The boost control module generates a pulse voltage signal via the electrode module. The pulse voltage signal is transmitted to the lower eyelid on the eyeball side by bodily fluids.

This invention provides a dry lens AOI inspection method and system, relating to the field of contact lens manufacturing technology. The invention first performs a shell removal process on the cured shell mold to separate the lens from the shell mold. Then, the lens is attached to the shell mold for AOI inspection. Multiple illumination sources are combined to form a composite beam that illuminates the lens and acquires images. Image enhancement and analysis, combined with adjustments to light source parameters, are used to identify defects. Results that do not meet thresholds are subjected to depth analysis. Finally, defect statistics are completed and an inspection report is generated. This invention simplifies the inspection process, improves inspection efficiency and accuracy, achieves precise determination of lens defects, and is adaptable to the inspection needs of different types of contact lenses.

The application discloses a contact lens hydration tray facilitating automatic grabbing, which comprises a tray body, a plurality of first notches are formed in the tray body, the first notches are distributed in a rectangular array on the tray body, a second notch is formed in the bottom surface of each first notch, moving rails are symmetrically installed in the tray body, a connecting rod is movably installed between the moving rails, a material pushing rod is installed on the connecting rod, and a driving device is further installed in the tray body, wherein the driving device is used for driving the material pushing rod to move up and down in the second notch so as to push the material in the first notch.

Disclosed herein are methods for quality control of contact lenses. An example method comprises receiving an input image indicative of a subject contact lens. The example method comprises outputting, based on analysis of the input image and using a first learning model, a first foreign matter metric and rejection data based on the analysis of the input image. The example method comprises outputting, using an artifact model and based on at least the rejection data, an artifact metric. The artifact model may be implemented based on one or more artifact attributes. The example method comprises outputting, using a second learning model and based at least on the first foreign matter metric and the artifact metric, a second foreign matter metric. The second learning model may be scale dependent. The second foreign matter metric is indicative of at least an accept or reject condition of the subject contact lens.

The present disclosure is directed to contact lenses configured to prevent or slow development of myopia. In some embodiments, a contact lens for slowing the progression of myopia includes a circular first zone extending from an optical center of the contact lens to a first boundary. The first zone has a first visible light transmission profile. The contact lens includes an annular second zone abutting the first zone at the first boundary. The annular second zone at least partially surrounds the first zone and extends from the first boundary to a second boundary. The second zone has the same dioptric power as a dioptric power of the first zone. The second zone has a second visible light transmission profile that is different than the first transmission profile and is a blue light transmission profile.

An ophthalmic lens which may be a contact lens (1, Fig 1A) with an optic zone comprising a distance corrective central region (5, Fig 1A) with on-axis curvature (19, Fig 2A) and a first annular region

The application relates to a multi-arc-segment ultra-thin-edge high-comfort contact lens and a preparation method thereof, and relates to the technical field of corneal contact lenses. The contact lens comprises a center optical zone, a base arc zone, a transition arc zone and an edge arc zone arranged in sequence from the center to the outside; the edge arc zone is designed in a double-arc-segment mode and comprises a first edge arc segment R2 and a second edge arc segment R3; the first edge arc segment R2 is connected with the transition arc zone and the second edge arc segment R3 and is used for lifting the whole lens edge by 0.08mm; the second edge arc segment R3 is connected with the first edge arc segment R2 and the outermost end of the lens and is used for reducing the edge thickness and forming an ultra-thin-edge structure. The first edge arc segment R2 and the second edge arc segment R3 are designed in a double-arc-segment mode, the lens edge is not in contact with the eyeball, the wearing comfort is improved, the tear circulation is strengthened, and the eye health is ensured.

The utility model discloses a kind of automatic feeding and discharging production lines of contact lens oven, the production line includes heating box, heating box is equipped with drying tray bearing ring inside, drying tray outlet is set up in the front of heating box and is equipped with gate, drying tray bearing ring is rotatably installed on gate. Track is installed on the opposite side of heating box, drying tray bearing ring is cooperatively installed with track, drive device is installed in the front of track for sliding gate on track. Fixed device is installed on the outside of heating box, gate is combined and installed with fixed device after moving to the inside of heating box with drying tray bearing ring. Drying tray bearing ring includes bearing column and bearing plate, bearing plate is rotatably installed on bearing column, and the outer surface of drying tray bearing ring is equipped with equidistantly distributed placing groove. The production line further includes control device, and is electrically connected with drive device, for controlling drive device to drive valve to move. The utility model realizes that contact lens improves cleaning efficiency and production efficiency.

The invention provides a contact lens for treating xerophthalmia and a preparation method thereof, and belongs to the technical field of medical instruments. The contact lens comprises a contact lens base body and a functional coating fixed on the surface of the contact lens base body, the functional coating is fixed on the surface of the contact lens substrate through a self-assembly technology or a chemical grafting technology; the functional coating comprises a medicine carrying layer and a slow-release regulation and control layer. The surface functionalized coating technology is adopted, the medicine carrying layer and the slow-release regulation and control layer are sequentially constructed on the contact lens base body, a complex micro-channel or cavity structure does not need to be designed in the lens, the process is simple and convenient, large-scale production is easy, and meanwhile the original optical performance and mechanical strength of the lens are not affected.

The utility model discloses contact lens cleaning machine, including protection bottom box, the top end of protection bottom box is matched with the setting and places the box, places the box in the matched setting and has the installation box, and the integral setting of installation box has the flexible cleaning box, is provided with the baffle in the flexible cleaning box, and is formed with left cleaning cavity and right cleaning cavity through the baffle, is provided with ultrasonic generator in the installation box, and the bottom end cooperation of flexible cleaning box is provided with ultrasonic transducer, and the mutual cooperation of left cleaning cavity and right cleaning cavity all is provided with protein electrophoresis electrode, and the outside of protein electrophoresis electrode is provided with flexible protective cover, and the hinge of placing box is equipped with the protective cover, and the ultraviolet lamp of cooperation left cleaning cavity and right cleaning cavity is set up on the protective cover, and the circuit board and battery pack of cooperation are set up in the protection bottom box, the utility model discloses adopts multiple ways to assist each other to realize the cleaning of contact lens, improves the cleaning sterilization effect of contact lens.

The utility model discloses a kind of automatic sorting device of contact lens mold power, the device includes detection box, detection box front installation conveying device, left installation ejection device, right installation blanking part, upper installation lifting assembly, inside detection bin is set, right side is set discharge port.Lifting assembly includes power device and lifting hook, lifting hook extends to the inside of detection bin and is perforated, power device drives lifting hook to move.Detection bin inside installation goes material device, located lifting hook opposite side, including optical detection head and material column, material column telescopes in detection bin before and after.Conveying device sends material tray to detection bin, ejection device ejects material tray detection bin and moves to corresponding blanking part on.The utility model structure is reasonable, can automatically detect contact lens mold power and carry out sorting, improve production efficiency, reduce artificial cost, ensure sorting accuracy.

This item is a contact lens with patterns and colors applied to it.

The present invention provides an improved method and apparatus for additive manufacturing of molded articles having surface quality suitable for use as optical elements such as contact lenses. [Solution] The improvement is directed toward repeatedly coating monomers according to an energy transmittance pattern such as a grayscale image. The method includes intermittent pinning of the deposited polymerizable mixture and final curing of the deposited polymerizable mixture. A pattern of multiple defined regions may be produced, each region representing the amount of energy transmittance associated with that region. Each region may have a value of light based on a scale such as 8-bit, 16-bit, 32-bit, 64-bit scale or other scales. In some embodiments, each region may point to the smallest single component of a digital image.

The present invention provides an eye device case that reduces the risk of damage to eye devices such as contact lenses held in the holder and also improves the ease of inserting eye devices into the holder. The ophthalmic device case 10 comprises a case body 12 including a housing recess 24, a lid 14 that seals the opening 32 of the housing recess 24, and holder portions 20a and 20b that are rotatably provided on the protruding end side of a support column 16 that is held by the lid 14 and protrudes downward, and hold an ophthalmic device 26. The lid 14 can be attached to the opening 32 of the housing recess 24 with the device insertion openings 68 of the holder portions 20a and 20b held by the lid 14 oriented so as to open toward the lid 14.

This utility model relates to the field of automated production technology for contact lenses, specifically a UV curing device for contact lenses, including loading and unloading stations, a conveying device, and a curing unit. The curing unit and the loading and unloading stations are located within the working range of the conveying device. The loading and unloading stations include a loading conveying component and a unloading conveying component arranged in parallel. The discharge end of the loading conveying component is equipped with a loading rack. The conveying device includes a conveying robotic arm, a rotary drive device driven by the actuator of the conveying robotic arm, and a dual-purpose conveying component driven by the actuator of the rotary drive device. The dual-purpose conveying component is equipped with multiple actuators. This utility model saves material turnover and preparation time, allows for switching of the conveying actuator, facilitates dual-purpose operation, further reduces equipment space occupation, shrinks the overall equipment volume, improves curing efficiency, enhances equipment compatibility, and enables rapid handling of carrier trays and molds to improve overall curing efficiency and quality.

1. Name of the product in this design: Contact Lens Removal Suction Stick. 2. Purpose of this design: A suction cup for removing contact lenses. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The objective of the present invention is to provide a method of producing a hybrid contact lens having a hydrophobic component with different properties from those of a contact lens base material embedded therein, the method including a specific procedure and having a smaller adverse impact on the optical properties of the hybrid contact lens. The objective can be achieved by a method of producing a hybrid contact lens having a hydrophobic component embedded therein, including subjecting a forming mold fitting a male mold placing the hydrophobic component on the top surface of the convex portion into a female mold containing a first contact lens-forming composition in the concave portion to a first copolymerization reaction to obtain a first copolymer having the hydrophobic component; subjecting a forming mold fitting a female mold containing a second contact lens-forming composition on the first copolymer in the concave portion into a male mold to a second copolymerization reaction to obtain a second copolymer having the hydrophobic component embedded therein; and subjecting the second copolymer to hydration and swelling treatment to obtain a hybrid contact lens having the hydrophobic component embedded therein.

This electronic system providing method comprises: acquiring specification information required by a user for an electronic system incorporated in a contact lens; by referring to a manufacturing library having stored therein a configuration example of the electronic system, selecting a component constituting the electronic system, on the basis of the specification information; and, by referring to the manufacturing library, outputting a flexible substrate shape that includes the component and is deformable into a curved surface shape. Accordingly, the present invention provides an electronic system providing method with which it is possible to reduce the development cost of a contact lens-type device having an electronic system incorporated therein.

The utility model relates to a contact lens mold material disc convenient to automatic identification control, including the shell, the shell is set up and placed the cavity in, the lower surface of placed cavity is installed with a plurality of LED lamp groups, the mould material disc is slidably installed in placed cavity, a plurality of material holes are seted up on the mould material disc, the material hole is correspondingly arranged with LED lamp group, the material quality of mould material disc and placed cavity is transparent material quality. Through setting up LED lamp group lets convenient detection provides light at the same time, can conveniently operate personnel through color identification lens's qualified rate.

The present invention relates to a corneal reshaping contact lens (L) comprising an inner surface having a back optical zone configured and arranged to correct the vision of the cornea of the eye of a wearer, wherein the back optical zone has a central circular zone (1a) and an annular zone (1b) extending radially outwardly from the end of the central circular zone (1a). In a cross-section of the corneal reshaping contact lens (L), the central circular zone (1a) and the annular zone (1b) comply with a curvature path of a continuous polynomial shape, wherein: - the central circular zone (1a) has a spherical radius or a radius with an eccentricity (e value) comprised between 0 and 1, and - the annular zone (1b) has a curvature radius which gradually increases in a progressive manner, not linearly, from the end of the central circular zone (1a) to the end of the back optical zone, increasing the distance with the reference curve.

A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.

An objective optical system for an endoscope comprising, in order from the object side, a first lens unit G1 having a negative refractive power, a second lens unit G2 having a positive refractive power, and a third lens unit G3 having a positive refractive power. The first lens unit G1 includes a negative lens L1. The second lens unit G2 includes a positive meniscus lens L2 having a convex surface facing the image side. The third lens unit G3 includes, in order from the object side, an object side positive lens L3 and a cemented lens CL made up of a positive lens L4 and a negative lens L5. The second lens unit G2 is moved for focusing. The objective optical system satisfies the following conditional expressions (1) and (2):-0.0⁢7<f⁢1 / f⁢2<-0.015(1)-0.4<f⁢1 / f⁢3<-0.1⁢5(2)where f1 is the focal length of the first lens unit, f2 is the focal length of the second lens unit, and f3 is the focal length of the third lens unit.