259 results about "Eye structure" patented technology

One disclosed embodiment of a method includes providing an intraocular lens. The intraocular lens includes a diffractive optical surface having diffractive properties which produce an interference pattern. The method further includes implanting the lens in an eye of a patient such that the diffractive optical surface changes shape in response to action of an ocular structure of the eye. The interference pattern is modified in response to the action of the ocular structure. One disclosed embodiment of an intraocular implant includes a lens body. The lens body comprises a diffractive optical surface having diffractive properties which produce an interference pattern. The lens body is sized and shaped for placement in an anterior portion of a human eye. The lens body is sufficiently flexible to change the shape of the diffractive optical surface in response to ciliary muscle action so that the interference pattern is modified.

A diagnostic and therapeutic contact lens is provided for use with biomicroscopes for the examination and treatment of structures of the eye. The lens comprises a contacting surface adapted for placement on the cornea of an eye, two reflecting surfaces, and a refracting surface. A light ray emanating from the structure of the eye enters the lens and contributes to the formation of a correctly oriented real image. The light ray is reflected in an ordered sequence of reflections, first as a negative reflection in a posterior direction from an anterior reflecting surface and next as a positive reflection in an anterior direction from a posterior reflecting surface. The light ray contributes to forming the image of the structure of the eye either anterior to the lens or within the lens and proceeds along a pathway to the objective lens of the biomicroscope used for stereoscopic viewing and image scanning.

In order to improve the scratch resistance of an antireflective article having a moth-eye structure, an antireflective article is provided that has fine protrusions densely arranged therein, and has the interval between adjacent fine protrusions being no more than the shortest wavelength in the wavelength band for antireflection. At least some of the fine protrusions are fine protrusions having a plurality of apexes.

An instrument for imaging the eye and performing ophthalmic diagnostic tests is disclosed that obtain images of the structures of the eye using imaging technology such as optical coherence tomography (OCT). To assist with such imaging and/or provide additional diagnostics, the ophthalmic diagnostic instrument may additionally include a display for presenting images to the subject whose eyes and vision are being evaluated. This display system may comprise a MEMS (microelectromechanical system) scanning mirror.

The invention provides a flat panel display device that includes a transparent display panel including a transparent area transmitting light incident on one surface of the transparent display panel to the other surface opposite to the one surface; a first anti-reflective film which is formed over the one surface of the transparent display panel and has a moth eye structure; and a second anti-reflective film which is formed over the other surface of the transparent display panel and has a moth eye structure.

The invention is directed to the detection and imaging of the internal geometry of the eye, particularly of the important components for imaging in the eye such as the cornea, lens, vitreous body and retinal surface, by multichannel short coherence interferometry. A method and arrangement for obtaining topograms and tomograms of the eye structure by many simultaneously recorded interferometric depth scans through transversely adjacent points in the pupil using spatially coherent or spatially partially coherent light sources. The depth scan is carried out by changing the optical length of the interferometer measurement arm by means of a retroreflector. By continuously displacing the retroreflector, the z-position of the light-reemitting point in the eye can be determined by means of the occurring interference. It is possible to record depth scans simultaneously through the use of spatially coherent or spatially partially coherent light beams comprising a plurality of partial beams.

The invention relates to an eye characteristic-based trial auxiliary study and judging analysis system, which comprises an infrared light source, an image collection unit, an eye detection and tracking unit, a pupil data acquiring unit and a sight tracking and correcting unit. An infrared camera is used for capturing a pupil image data to analyze the eye structure, automatically recognize the central position of the pupil and the central position of a cornea and display relevant data in real time so as to immediately determine the sight direction, and a psychological status of a criminal party can be immediately calculated according to the status variation and the visual content of the pupil. Due to the adoption of the eye characteristic-based trial auxiliary study and judging analysis system, interference on a user is less, and no wearing tracking device is required; and the involved sight tracking technology is one of key technologies of intelligent human-machine interfaces in the future, and the system has wide application prospect on the aspects such as industrial control, robotics and clinical medicine.

An antireflection film is provided in which a light scattering property is suppressed. In at least one example embodiment, the antireflection film includes, on a surface thereof, a moth-eye structure including a plurality of convex portions such that a width between vertices of adjacent convex portions is no greater than a wavelength of visible light. In at least one example embodiment of this antireflection film, the moth-eye structure does not include a sticking structure formed when tip end portions of the convex portions are joined to each other.

The present invention relates to oxygenated ophthalmic topical compositions and methods of administering oxygenated ophthalmic topical compositions. The present invention also encompasses methods for making and administering the oxygenated ophthalmic topical compositions for use in treating or ameliorating pathologic conditions, complications, diseases and symptoms related to hypoxia of the anterior eye structure, including corneal neovascularization (CNV), edema, abrasions, infections, infiltrates, dry eye syndrome, contact lens intolerance; and redness, blurred vision, discomfort, foreign body sensation, photophobia, and irritation.

There is provided an antireflective film, including: a plastic substrate; a infiltration layer; and an antireflective layer containing metallic oxide fine particles with an average primary particle diameter of 50 nm to 250 nm and a viscosity increasing compound, in this order, wherein the infiltration layer contains a polymer of a (meth)acrylate compound having a molecular weight of 400 or less, and the antireflective layer has a moth-eye structure including an uneven shape formed by the metallic oxide fine particles.

Disclosed are an anti-reflection structure, an imprint mold, methods for producing them and a display device capable of achieving appropriate visibility by forming regions different in reflection characteristics mixed in a film including a moth-eye structure, and sufficiently reducing reflection and sufficiently improving transmittance by the moth-eye structure. The anti-reflection structure includes a surface with an uneven structure composed of a transparent body and includes protrusions, the width between the tops of any pair of the adjacent protrusions being equal to or shorter than visible light wavelengths, the anti-reflection structure including a first region including a surface with the uneven structure, and a second region including a surface with a structure composed of a transparent body, the structure being different from the uneven structure and the second region in a plan view having a shape forming at least one selected from the group consisting of characters, symbols, and graphics.

The invention is a retinal prosthesis with an improved configuration mounting necessary components within and surrounding the eye. The present invention better allows for the implantation of electronics within the delicate eye structure. The invention further limits the necessary width of a thin film conductor passing through the sclera by use of a multiplexer external to the sclera and a demultiplexer internal to the sclera.

The invention provides a non-periodic surface plasma grating type terahertz filter which comprises a two-dimensional metal grating flat plate with a central circular through hole. The upper surface and the lower surface of the metal grating flat plate are symmetrically provided with non-periodic annular grooves, and the widths of the annular grooves are different. According to the non-periodic surface plasma grating type terahertz filter of a bull eye structure, a non-periodic structure is adopted to remove contradictions between transmission bands and sidelobes of a general periodic filter, and the sidelobe suppression ratio is improved. Compared with a traditional filter, the non-periodic surface plasma grating type terahertz filter has the advantages of being high in center frequency transmission rate, few in loss, high in selectivity, easy to adjust, convenient to manufacture and process, low in cost and the like.

A display device and an optical film are disclosed which can protect the moth-eye structure while maintaining low reflectance. In at least one example embodiment, the present invention relates to a display device comprising an anti-reflection film including a moth-eye structure and a peelable protective film, wherein the protective film covers the moth-eye structure and is attached to a flat portion of the display device, the flat portion being flatter than the moth-eye structure. The flat portion suitably corresponds to the substrate and/or a region free of the moth-eye structure on the anti-reflection film, in a display panel.

An integral laser imaging and coagulation apparatus, and associated systems and methods that allow a physician (e.g., a surgeon) to perform laser surgical procedures on an eye structure or a body surface with an integral laser imaging and coagulation apparatus disposed at a first (i.e. local) location from a control system disposed at a second (i.e. remote) location, e.g., a physician's office. In some embodiments, communication between the integral laser imaging and coagulation apparatus and control system is achieved via the Internet®.