49 results about "Eye lens" patented technology

This utility model discloses an eyeglass lens that is easy to install and position, comprising: a lens body, a sealing ring fixedly connected to the edge of the lens body, a cavity formed inside the sealing ring, and a magnetic strip disposed within the cavity; a reinforcing layer disposed on the outer side of the lens body to improve the hardness and water resistance of the lens body; and multiple stabilizing components, which are evenly assembled on one side edge of the sealing ring to cooperate with the frame in positioning the lens body. Each stabilizing component includes a stabilizing frame fixedly connected to one side edge of the sealing ring. This utility model relates to the field of eyeglass lens technology. Through the magnetic strip, this utility model enables the lens body to be magnetically connected to the metal frame. The stabilizing components, in conjunction with the frame, provide stable support for the lens body, ensuring the stability of the lens body after connection with the metal frame, and greatly improving the ease of lens body installation.

A detection device detects an imaged human from a captured image captured by a ceiling camera using a fish-eye lens, and includes a division part, an area estimation part, and a determination part. The division part divides the captured image into a plurality of areas. The area estimation part calculates a probability that each of the plurality of areas includes a position where a detection target estimated to be a human is present. The determination part determines whether the detection target is a human using the probability of each of the plurality of areas.

1. Name of the product in this design: Eyeglass lens film. 2. Purpose of this design: For use as a pattern on eyeglass lenses. 3. The key design feature of this product is its pattern. 4. The image or photograph that best illustrates the design's key features: the front view. 5. This design is a planar product with continuous four sides and no defined boundaries.

1. The name of the design product: automobile headlamp (Prius 10-15 three-eye lens version). 2. The use of the design product: used for automobile headlight lighting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

An endoscope auxiliary device for gastrointestinal polyp measurement mainly comprises a polyp scale, a pushing tube and an operating handle, overcomes the estimation error caused by the fish-eye lens distortion and zoom of the existing technology, and fills the technical gap of accurate physical measurement of polyp shape. At the same time, in addition to being used for physical measurement of the size of polyps in the digestive tract under the endoscope, the device can also be combined with the endoscope administration tube to realize the clinical functions including polyp measurement, lavage, spraying of liquid medicine and contrast.

The utility model relates to a kind of delay myopia degree progress and axial growth prevention and control spectacle lens, belong to the field of glasses optics.The lens includes lens base, and the center area is circular center visible area, and outside is peripheral defocus area.Peripheral defocus area is composed of microlens array, and is divided into two asymmetric design regions from central axis: upper half adopts circular ring array structure, and lower half adopts concentric honeycomb array structure.Effective inhibition vision deepens, improve myopia management effect.Peripheral defocus area defocus gradually reduces from center to outside, more fit 8-18 years old teenager eyeball retina structure features.Microlens gap place evenly densely multiple diffusion points, effectively reduce contrast, brightness by soft scattered light, reduce hue difference;Reduce the high contrast signal detected by retina photoreceptor cell and its elongation signal to eye, so as to delay axial growth, delay myopia deepens.

The application discloses a cutting device for edge-shaped resin spectacle lenses and a cutting method thereof, comprising an edge grinding machine, the edge grinding machine is provided with a cutting tool for cutting the edge of the resin lens, the edge structure of the cutting tool is matched with the edge structure of the resin lens, and the mounting interface of the cutting tool is consistent with the tool interface of the edge grinding machine; the application directly uses the traditional lens edge grinding machine, does not need to purchase expensive five-axis numerical control equipment, and can seamlessly integrate the optical parameter setting function of the original equipment, thereby guaranteeing the optical quality and reducing the equipment investment and tool wear cost; by replacing different special forming tools, various personalized and customized special-shaped edge requirements, including steps, sharp edges, grooves, inclined surfaces and combinations thereof, can be flexibly coped with.

Transparent organic light-emitting diodes (OLEDs) can be used as luminescent pixels in near-eye displays for augmented reality applications. Light from these pixels can be switched and / or directed using tunable beam-guiding and focusing elements, also known as tunable microlenses. These tunable microlenses are arranged in an array and paired with the pixel array, for example, by being embedded in a spectacle lens. The tunable microlenses use rapidly switching half-wave plates to selectively focus and / or tilt the light from the pixels. By switching the light from the pixels between resolvable positions / angles at a rate faster than the flicker fusion threshold (e.g., 60 Hz), the tunable microlenses can efficiently double the apparent resolution of the near-eye display. And by switching between focused and unfocused states at the same rate, the tunable microlenses can efficiently overlay virtual images from the pixels onto a real-world image visible through the pixels.

This invention relates to a device for dyeing anti-radiation resin eyeglass lenses, comprising a main body. The main body has a dye solution tank and a clean water tank on its platform for storing dye solution. The dye solution tank contains an immersion tank for dyeing the lenses. The main body has a supply channel connecting the dye solution tank and the immersion tank. The bottom wall of the dye solution tank has an inlet channel connecting to the supply channel. The inlet channel contains a first one-way valve allowing only dye solution to enter the supply channel from the inlet channel. The supply channel also contains a second one-way valve allowing only dye solution to enter the immersion tank from the supply channel. A piston is slidably connected vertically within the supply channel. The main body has a drive mechanism for driving the piston to reciprocate vertically. The connection between the inlet channel and the supply channel is located below the piston's sliding path. This invention automatically adds dye solution to the immersion tank.

1. The name of the design product: Focal length meter (820). 2. The use of the design product: The instrument is used to measure the top focal length and prism of the spectacle lens, determine the cylinder axis direction of the cylinder lens, print marks on the uncut edge lens and check whether the lens is correctly installed in the frame. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

Control unit (1) for an electric drive unit (2) of an ophthalmic surgical handpiece (3) for processing an eye lens (52), which drives a treatment needle (14), comprising a generator unit (4) for providing an electrical control variable (5, 6) for the electric drive unit (2), wherein the generator unit (4) is configured to provide the control variable (5, 6) with a control oscillation, wherein the control oscillation has a first oscillation component at a first control frequency, wherein the first oscillation component is adjustable depending on a first ratio of a mechanical displacement amplitude of the treatment needle (14) to the electrical control variable (5, 6) at the first control frequency, wherein the generator unit (4) is further configured to provide the control oscillation of the control variable (5, 6) with at least one further oscillation component at a further control frequency different from each other control frequency,that the further oscillation component is adjustable depending on a further ratio of the mechanical displacement amplitude of the treatment needle (14) to the electrical control variable (5, 6) at the respective further control frequency. characterized in that the generator unit (4) provides the control variable (5, 6) such that a first period attributable to a forward movement of the treatment needle (14) is shorter than a second period attributable to a return movement of the treatment needle (14).

1. Name of the product in this design: Cylindrical spectacle lens. 2. Application of this design: For embedding and installing prescription glasses in curved face shields such as ski goggles and helmets. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present application relates to the technical field of image processing, in particular to a fisheye lens image pixel-level edge enhancement and denoising method, comprising: a data acquisition step: acquiring original fisheye image data and preset fisheye lens optical distortion parameters; a weight generation step: determining the distortion stretching rate of a pixel point according to the optical distortion parameters; and generating a spatial density weight map; a threshold determination and denoising step: determining a target denoising threshold according to the spatial density weight map; denoising the original fisheye image data to generate an intermediate denoising image; a convolution kernel generation step: generating an adaptive curved surface convolution kernel according to the optical distortion parameters; an edge enhancement step: using the adaptive curved surface convolution kernel to perform edge enhancement processing on the intermediate denoising image; and generating an enhanced image; the present application effectively avoids the risk of irreversible erasure of key semantic features in the edge field, and ensures high-reliability feature preservation in the extreme field.

Augmented reality glasses and image acquisition equipment are provided. The augmented reality glasses include glasses legs, a glasses frame connected to the glasses legs, and eyeglasses and a camera that are mounted on the glasses frame, the augmented reality glasses further include: a blocking assembly mounted on the glasses frame and a driving mechanism for driving the blocking assembly to move. The driving mechanism is in transmission connection to the blocking assembly. The driving mechanism is configured to drive the blocking assembly to move between a blocking position and an exposing position. The augmented reality glasses and image acquisition equipment of the embodiments of the present invention expose a camera when photo taking is required and block the camera when photo taking is not required. This can protect the camera and meet a privacy requirement of a user.

The utility model relates to the technical field of spectacle lens machining, in particular to a spectacle lens machining clamp which comprises a machining table, a stand column is fixedly connected to the machining table, a connecting base is arranged above the stand column, a vacuum suction pipe is installed on the connecting base, a discharging disc is installed on the top of the vacuum suction pipe, and an electromagnetic plate is installed in an installation groove in the top of the discharging disc. A rubber air bag is installed on the discharging disc, magnetorheological fluid is poured into the rubber air bag, and an adsorption channel which penetrates through the discharging disc and is communicated with the vacuum suction pipe is formed in the rubber air bag. The lenses are pressed on the rubber air bags, magnetorheological fluid in the rubber air bags is extruded to flow, the rubber air bags are completely attached to the lenses, then the electromagnetic plates are powered on to generate a magnetic field, and the magnetorheological fluid in the rubber air bags is converted into a solid-like state, so that the lenses with different specifications and shapes are perfectly attached; and suction force is generated through the vacuum suction pipe, the lens is firmly adsorbed, the lens is prevented from being scratched in a mechanical clamping mode, and the universality of the clamp is improved.

The application belongs to the technical field of mouse myopia model construction device and ophthalmology experimental auxiliary instrument, and relates to a disassembly-free mouse lens induced myopia modeling device and a myopia modeling method. The device comprises a frame, a lens, a support one and a support two. The lens is embedded in the frame through a clamping groove structure one. The support one and the support two are separate parts. The support one and the support two are folded to the middle part and are clamped and stabilized through a clamping groove structure two. The method comprises the following steps: the two forelimbs of the mouse are respectively inserted through the hole positions on the support one and the support two, and then the support one and the support two are folded to the middle part and are locked through the clamping groove structure. After locking, the frame is located in front of the single eye of the mouse to perform single eye lens induced myopia modeling, and the other eye is used as a control eye. Through the structural design that the support one and the support two are first separated and then folded and clamped, the wearing path of the device is clear, the device is convenient to quickly install, and the device is not easy to fall off as a whole after being fixed.

Lens element, for example a spectacle lens or a contact lens, adapted for an astigmatic wearer, said lens element providing a first optical function having a maximum power along a first principal meridian and a minimum power along a second principal meridian based on the prescription of the wearer, the lens element further comprising a plurality of optical elements, for example at least twenty optical elements, each optical element of the plurality of optical elements providing at least a second optical function different from the first optical function having a defocus property; wherein the second optical function has a different value of a parameter related to the defocus property along the first principal meridian and along the second principal meridian.

The present invention provides a method for applying a pattern (2) to a spectacle lens substrate (1). The method includes: generating a low contact angle surface on a preselected portion (4) of the surface of the spectacle lens; and providing the spectacle lens substrate (1) with a hard coating composition (70) and optionally a primer coating composition.

This invention belongs to the field of optical material measurement technology, specifically a device and method for measuring the refractive index of curved optical lenses based on white light spectral interferometry. The invention employs a Michelson interferometer combined with a small-core fiber optic detection scheme. A 45-degree mirror folds the optical path vertically, allowing the curved lens sample to be placed horizontally on a sample holder. The small-core fiber collects interference signals only from the central region of the lens, enabling the curved interference to be approximated by an equivalent planar model. During measurement, the interference spectrum of the sample in place and the air reference spectrum after sample removal are collected separately. The group refractive index dispersion curve of the sample over a wide wavelength range is calculated by analyzing the fringe period. This invention eliminates the need for a flat sample, allowing direct measurement of curved lenses and spectacle lenses; it also eliminates the need for mechanical scanning components, offering a wide measurement range and high accuracy.

1. The name of the design product: glasses lens hanging basket. 2. The use of the design product: used in the production process to place semi-finished glasses lens. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective drawing.

The present application relates to a kind of vehicle-mounted fish-eye camera MTF test collimating lens, belong to the field of photoelectric testing instrument design.The technical problem of existing vehicle-mounted fish-eye lens transmission function test equipment needing foreign import, high cost of matching equipment is solved.The collimating lens of the present application includes aperture diaphragm, first lens, second lens, third lens, fourth lens, imaging plane arranged in turn along the direction of light propagation;The light emitted by the object arranged at aperture diaphragm reaches imaging plane after first lens, second lens, third lens and fourth lens in turn;First lens is convex-concave positive lens, second lens is concave-convex negative lens, third lens is concave-convex negative lens, and fourth lens is concave-convex positive lens.The vehicle-mounted fish-eye camera MTF test collimating lens of the present application can provide infinite target when used for vehicle-mounted fish-eye lens MTF test, and the collimating lens has large tolerance limit, is easy to process and adjust, has low processing cost and high test efficiency.

An exposure apparatus includes a light source emitting light, an axicon lens converging the light emitted from the light source, and a fly-eye lens portion receiving the light converged from the axicon lens, and the axicon lens and the fly-eye lens portion are aligned next (adjacent) to each other.