17 results about "Corrective contact lens" patented technology

An object of the present invention is to provide a holding device, a camera unit, and an imaging system capable of capturing an image of a subject with higher image quality than before in water.SOLUTION: A holding device insertable into a transparent tubular member, the holding device comprising: a camera holding section capable of holding an image pickup apparatus including an image pickup optical system and an image pickup device for photographing an outside of the tubular member; a correction lens having a curvature at least in a cross section orthogonal to an extending direction of the tubular member; and a lens holding section capable of holding the correction lens to be located between the tubular member and the image pickup optical system when the holding device is inserted into the tubular member and the image pickup apparatus is held by the camera holding section.SELECTED DRAWING: Figure 13

This application relates to a corrective lens and diopter adjustment method for AR glasses displays, belonging to the field of AR displays. It is used for mounting on AR glasses. The waveguide glasses include a frame and a waveguide lens, including a central beam. A polarizer assembly and a correction assembly are connected to the inner and outer sides of the central beam via clamps. The polarizer assembly and the correction assembly are clamped to the inner and outer sides of the frame via clamps. The correction assembly includes a light-transmitting base and an adjustment component. The light-transmitting base is hollow and contains a liquid light-guiding medium. A planar transparent substrate is located on one side of the light-transmitting base near the waveguide lens, and a transparent elastic layer is located on the other side. The planar transparent substrate, the liquid light-guiding medium, and the transparent elastic layer are stacked together to form a diopter lens with diopter. The adjustment component is configured to adjust the liquid pressure of the liquid light-guiding medium. The pressure difference between the liquid light-guiding medium and the external atmosphere causes deformation of the transparent elastic layer, thereby changing the thickness and surface curvature of the diopter lens.

This application discloses a near-eye display device and a near-eye display apparatus. The device includes an eye-tracking system, an optical display system, and a corrective lens. The eye-tracking system includes a light source module and an image acquisition module. The light source module emits polarized light. The image acquisition module includes a stray light suppression component, which can suppress at least a portion of stray light from entering the image acquisition module. The stray light is polarized light reflected by the corrective lens. The polarization properties of the light transmitted through the stray light suppression component are different from the polarization properties of the stray light reaching the image acquisition module. This avoids stray light formed after the illumination beam is reflected by the corrective lens from entering the image acquisition module, which helps improve image clarity and thus improves the accuracy of eye-tracking calculations.

The application discloses a kind of corrective lens design equipment, storage medium and lens, it is related to medical equipment field, for solving the problem of existing refractive correction improves visual acuity or the effect of improving visual quality is poor.Refractive lens design equipment includes acquisition device, selection device and design device, acquisition device obtains the central refractive power of target individual eyeball, selection device finds out target refractive topography from refractive topography group, central refractive power is in the central refractive power range corresponding to target refractive topography, and refractive topography describes the retinal refractive power distribution of eyeball with corresponding central refractive power in preset field angle;Design device obtains refractive power distribution correction scheme in conjunction with target refractive topography, to obtain the corrective lens for target individual.The present application combines the peripheral defocus characteristics of human eye retina to design semi-personalized lens for individual, to achieve the purpose of improving visual acuity, improving myopia prevention and control effect or improving peripheral visual quality.

Different users of head-mounted devices have different needs for vision correction. It can be desirable to provide a system to determine a corrective lens that is most suitable for a given user. A dispenser can include a plurality of different lenses that provide different types of vision correction. The dispenser can provide an appropriate one of the lenses, and the user can use the lens with the head-mounted device during an experience session. During the experience session, the user can verify that the lens is satisfactory.

A unitary lens structure is provided which is employable with spectacles as well as goggles and safety eyewear and AR and VR eyewear. The lens is formed as a unitary structure with a curved first lens having one or a plurality of projections thereon having surfaces which are formable to prescription eyewear providing vertical vision correction and curved horizontal vision correction.

A custom lens device is disclosed as a corrective lens created by a specialized 3D printer. Specifically, a qualified technician working with an ophthalmologist and / or an optometrist combine laboratory measurements of the retina and other eye surfaces, then combine that data with subjective input from the patient's correction to an Amsler grid, to create a custom lens that will un-distort vision which has been distorted (i.e., warped), due to undulations in the retina caused by a number of eye diseases, including, but not limited to, epiretinal membrane and macular degeneration.

A method of using computer-generated holography to determine a corrective lens prescription comprises computing a hologram of an image. An aberration phase map is computed using a set of Zernike pol

The present application provides a variable focus lens element, a corrective lens assembly and an optical display system. The variable focus lens element comprises a lens unit and a polarization controller. The lens unit has different optical powers for light beams with different polarization directions. When a light beam is introduced into the variable focus lens element via the polarization controller in a first state, the polarization direction of the light beam is converted by the polarization controller. When the light beam is introduced into the variable focus lens element via the polarization controller in a second state, the polarization direction of the light beam is prevented from being converted by the polarization controller.

This invention discloses a corrective lens belonging to the field of lens technology, comprising: a first region, a second region, a third region, a fourth region, a fifth region, a sixth region, a seventh region, an eighth region, and a ninth region; the first region is the central area, composed of a basic spherical lens and a cylindrical lens, used for precise refractive correction; the lens adopts a nine-square grid layout, which prevents reversal naturally and has a significant effect on myopia correction.

The present application relates to lens module, glasses and wearable device. The lens module comprises a frame, a first corrective lens, a second corrective lens and an adjusting device. The frame defines a receiving cavity, the first corrective lens and the second corrective lens are located in the receiving cavity, and the second corrective lens is arranged opposite to the first corrective lens. The adjusting device comprises a driving mechanism and an elastic member provided with a cavity. The elastic member is arranged on the frame and connected to at least one of the first corrective lens and the second corrective lens. The driving mechanism is used to drive the medium to flow into or out of the cavity to deform the elastic member, so as to change the distance between the first corrective lens and the second corrective lens. The lens module can be adjusted adaptively for users with different vision degrees, meeting the use requirements of different users or different scenes. The elastic member can also play a buffering role to prevent the lens module from being damaged when falling or hitting.

The present disclosure relates to display systems and, in particular, to head-mounted display systems.SOLUTION: A display and vision correction system includes a head-mounted display unit, an eyeglass frame, and a removable lens assembly. The head-mounted display unit is configured to be worn on a head of a user and includes a display for providing graphical content to the user. The eyeglass frame is configured to be worn on a head of a user. The removable lens assembly is removably coupleable to the head-mounted display unit and the eyeglass frame. The removable lens assembly includes a corrective lens element.SELECTED DRAWING: Figure 18B

A refraction-corrective lens detection method and an electronic device. The method comprises: when it is detected that a head-mounted display device is worn, photographing in a direction towards the eye on the basis of a photographing assembly, to obtain an eye image; matching edge information of an eye region in the eye image with preset edge information, the preset edge information being edge information of an eye region in a reference eye image, and the reference eye image being obtained by photographing on the basis of the photographing assembly in the direction of the eye when the head-mounted display device is not provided with a refraction-corrective lens; if the edge information does not match the preset edge information, determining that the head-mounted display device is currently provided with a refraction corrective lens.

An apparatus uses optical components arranged as a telescope to simulate the optical effects of intraocular lenses on images viewed in the presence of scattering light and glare sources. By simulating a view of a real image through an intraocular lens and projecting the simulated view into a patient's eye, the patient can view the quality of vision that may result from use of a particular lens as a corrective tool. The intraocular lens is placed within the fields of view of peripheral optical components having prescribed operating parameters that allow for projecting a simulated image through an intraocular lens into a patient's eye before the intraocular lens is implanted. The patient can perceive the results of a corrective lens before that lens is attached to or implanted within the patient's eye.

A head-mounted device can have a head-mounted housing. The head-mounted housing can have a display that displays images for a user through a lens. The display and lens can be mounted in left and right optical modules. Attachment structures, such as magnets, can be used to removably attach left and right vision correction lenses to the left and right optical modules, respectively. When the user wears the head-mounted device, the images can be viewed from an eyebox through the vision correction lenses. The vision correction lenses and head-mounted device can be provided with near field communication antennas. The antennas can be formed from coils that surround corrective lens elements in the vision correction lenses. In the head-mounted device, the antennas can be formed from coils that surround lenses in the optical modules and / or can include other coils.

A head-mounted device may have a head-mounted housing. The head-mounted housing may have displays that display images for a user through lenses. The displays and lenses may be mounted in left and right optical modules. Attachment structures such as magnets may be used to removably attach left and right vision correction lenses to the left and right optical modules, respectively. The images may be viewed from eye boxes through the vision correction lenses while the head-mounted device is being worn by the user. The vision correction lenses and the head-mounted device may be provided with near-field communications antennas. The antennas may be formed from coils that surround corrective lens elements in the vision correction lenses. In the head-mounted device, antennas may be formed from coils surrounding the lenses in the optical modules and / or may include other coil(s).

A method of fabricating a lens element for an adjustable power lens of the kind comprising two lens elements that are slidable relative to one other in a direction transverse the optical axis of the lens and have respective lens surfaces that are shaped to act together to form a corrective lens, the power of which varies according to the relative disposition of the two lens elements, the method comprising the steps of forming a lens puck having two opposite faces, which are shaped to form opposite lens surfaces of one of the lens elements of the adjustable power lens, the puck having at least one alignment feature, and thereafter edging the puck to a desired eye shape with reference to the alignment feature.