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Focus or astigmatism correction

Subclass of:

351 - Optics: eye examining, vision testing and correcting

351041000 - SPECTACLES AND EYEGLASSES

351159010 - Ophthalmic lenses

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
351159520 Focus or astigmatism correction 8
20120229758METHOD FOR PROVIDING A SPECTACLE OPHTHALMIC LENS BY CALCULATING OR SELECTING A DESIGN - A method for providing a spectacle ophthalmic lens to a wearer, the method comprising the following consecutive steps: measuring the visual acuity value(s), VA, of the eye(s) of the wearer or the binocular visual acuity value, VA09-13-2012
20130265540METHOD FOR CALCULATING A SPECTACLE LENS WITH IMPROVED NEAR ZONE - Optimization and production of a spectacle lens for a specific wearing situation for correcting at least one astigmatic refraction of an eye of a spectacles wearer, which in a reference viewing direction of the eye has a cylinder reference value and a cylinder reference axis, comprising: specifying an object distance for at least one evaluation point of the spectacle lens; determining a transformed astigmatic refraction for the at least one evaluation point of the spectacle lens from the cylinder reference value and the cylinder reference axis depending on the specified object distance; and optimizing the spectacle lens such that for the at least one evaluation point a correction of the transformed astigmatic refraction by the spectacle lens in the specific wearing situation is taken into consideration, wherein determining the transformed astigmatic refraction comprises determining a transformed cylinder value and/or a transformed cylinder axis depending on the specified object distance.10-10-2013
20130314666METHOD OF MAKING A SPECTACLE LENS PROVIDING AN ASTIGMATIC CORRECTION AND SPECTACLES INCLUDING SAID SPECTACLE LENS - A method of making a spectacle lens providing at least an astigmatic correction includes measuring a direction of an axis of an astigmatism of an eye for each of three different directions of gaze of the eye. Thereafter, a position of the spectacle lens is determined relative to the eye. A shape of a surface of the spectacle lens is computed based on the determined position of the spectacle lens relative to the eye and the at least three measured directions of the axis of the astigmatism. A primary orientation of the eye is determined based on the three measured directions of the axis of the astigmatism. The shape of the surface of the spectacle lens is calculated based on the determined position of the spectacle lens relative to the eye and by applying Listing's Law based on the determined primary orientation of the eye.11-28-2013
20140152955OPTICAL APPLIANCE - Disclosed is an optical appliance for mitigating farsighted vision in humans. The optical appliance includes a body portion and a lens portion. The lens portion is coupled to the body portion, and the lens portion is transparent. The lens portion has appropriate optical power to improve a user's visual acuity of near objects when the user looks through the lens portion. In some embodiment, a perimeter of the body portion is kidney-shaped. In some embodiments, the body portion comprises an orientation feature. In some embodiments the body portion includes a lens opening extending through the body portion. In some embodiments, the lens includes a lens retention rim along an outer perimeter of the lens. The lens is coupled to the body portion in response to the lens retention rim begin placed between at least one top lens retention ridge and at least one bottom lens retention ridge.06-05-2014
20140268030Pinhole Glasses - Pinhole glasses which can be used to assist people with low to moderate myopia, hyperopia, and astigmatism, are invented. The present invention can be used for glasses which function as progressive glasses, distance glasses, computer glasses, reading glasses, and when tinted, sunglasses. The present invention provides the best balance of visual acuity, brightness and visual field with emphasis on acuity, through the system of axes and the pinholes in multiple sizes along the axes which are clinically and empirically proven to be effective. Especially, the placement of pinholes along the axes has clinically and empirically been determined depending on the seriousness of the astigmatism of the users in correcting the astigmatic refractive errors. The size, number, spacing, pattern, and axes of the pinhole apertures have been optimized through optical theories and extensive clinical and empirical testing.09-18-2014
20140313476METHOD OF COMPILING SHAPE DATA OF A SPECTACLE LENS, SPECTACLE LENS SHAPE DATA COMPILING DEVICE AND SPECTACLE LENS - A spectacle lens capable of obtaining a good vision without feeling of discomfort, even being fitted into a frame having a large front angle, and a method of creating the shape data of the spectacle lens having dioptric power to be fitted into a frame having a lens front angle. The method corrects the shape data of a lens back surface so that the prismatic effect undergone via the lens of initial lens shape by a plurality of rays passing through a rotation center of the eye in a case where a lens front angle is provided is identical or close to the prismatic effect undergone via the lens of initial lens shape by the plurality of rays passing through the rotation center of the eye in a case where no lens front angle is provided.10-23-2014
351159530 Aspherical lens 2
351159540 Toric 2
20120320335OPHTHALMIC LENS, SYSTEMS AND METHODS HAVING AT LEAST ONE ROTATIONALLY ASYMMETRIC DIFFRACTIVE STRUCTURE - An ophthalmic lens, such as an intraocular lens (IOL), a phakic IOL or a corneal implant, and a system and method relating to same, having coupled thereto and/or integrated thereon at least one rotationally asymmetric diffractive structure. The lens of the present invention may include a single or limited number of rotationally asymmetric diffractive echelettes that provides an extended depth of focus.12-20-2012
20130107202Methods And Devices For Refractive Correction Of Eyes05-02-2013
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