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公开(公告)号：US20220110518A1
公开(公告)日：2022-04-14
申请号：US17555692
申请日：2021-12-20
摘要： A method and a device allow to determine the contrast sensitivity threshold of the eyes of a user in an automatic manner without requiring an experienced examiner or active attention of the user. The method includes: a) providing a dataset of track data including data of eye movements, wherein the eye movements are stimulated to elicit an optokinetic nystagmus in the eyes of the user and wherein the track data are related to a particular contrast and spatial frequency of the stimulus; b) estimating at least one velocity component of the eye movement; c) comparing the velocity component with a velocity threshold; d) comparing a fraction of the track data which exceed the velocity threshold with a fractional threshold for the dataset, which is classified as eliciting the optokinetic nystagmus at the particular contrast of the stimulus; and e) determining the contrast sensitivity threshold of the eyes of the user.
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82.发明申请公开(公告)号：US20220107451A1
公开(公告)日：2022-04-07
申请号：US17406293
申请日：2021-08-19
IPC分类号： G02B5/28 , C23C14/00 , C23C14/02 , C23C14/08 , C23C14/10 , C23C14/30 , C23C28/00 , C23C28/04
摘要： An interference layer system includes a plurality of optically transparent layers. The interference layer system has no carrier substrate and the optically transparent layers are disposed extensively over one another. The optically transparent layers are selected from the group consisting of dielectrics, metals, and combinations thereof, with at least one first optically transparent layer having a refractive index n1 and at least one second optically transparent layer having a refractive index n2, and with the first refractive index n1 and the second refractive index n2 differing by at least 0.1. The disclosure further relates to the production and the use of the interference layer system.
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公开(公告)号：US20220003632A1
公开(公告)日：2022-01-06
申请号：US17482853
申请日：2021-09-23
发明人： Carsten Glasenapp
摘要： The local refractive power and/or the refractive power distribution of a left and/or a right spectacle lens in a spectacle frame is measured in the wearing position on the head of a spectacle wearer by capturing at least two images of an eye of the spectacle wearer from different recording positions. The disclosure also relates to a computer program product having a computer program with program code and to an apparatus for carrying out the method.
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公开(公告)号：US20210382330A1
公开(公告)日：2021-12-09
申请号：US17412543
申请日：2021-08-26
IPC分类号： G02C13/00
摘要： A data record contains at least the following data values: spatial coordinates of a reference point at each eye of the wearer; a spatial direction vector for specifying a viewing direction of the wearer through the spectacle lens; and a spatial rim curve or edge curve. The data record can be used to produce a spectacle lens. A method and a computer program for generating the data record, and a method for producing the spectacle lens are also disclosed. It is possible to produce the spectacle lens after a single capture of a data record for adapting the spectacle lenses to the wearer of the pair of spectacles and to the spectacle frame selected by the wearer. A different spectacle lens as the spectacle lens originally selected can subsequently be used as the spectacle lens without having to record a further data record for the adaptation for the wearer.
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公开(公告)号：US11185223B2
公开(公告)日：2021-11-30
申请号：US17183573
申请日：2021-02-24
发明人： Arne Ohlendorf , Katharina Breher , Siegfried Wahl
IPC分类号： A61B3/103 , A61B3/10 , A61B3/14 , A61B5/00 , A61B8/10 , A61B3/00 , G06T7/00 , G16H50/30 , G16H30/40
摘要： A method, an apparatus, and a computer program for determining a refractive error of an eye of a user are provided. The method for determining the refractive error of the eye of the user, wherein the eye of the user has a choroid, includes: ascertaining at least one value for a layer thickness of the choroid of the eye of the user over at least one region of the choroid; and determining a value for the change in the refractive error of the eye only from at least two values for the layer thickness of the choroid which were each ascertained at different times for the at least one region of the choroid, wherein the at least one region is selected from a nasal perifoveal region or a nasal parafoveal region.
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公开(公告)号：US11129526B2
公开(公告)日：2021-09-28
申请号：US16393987
申请日：2019-04-25
发明人： Arne Ohlendorf , Alexander Leube
摘要： A device and computer program for determining the spherocylindrical refraction of an eye are disclosed. A component having adjustable optics is provided, the refractive power of which can be adjusted via a refractive power adjustment device. The spherocylindrical refraction is then determined from the adjustment of the refractive power adjustment device at different orientations of a typical direction of the optics or a typical direction of eye test characters.
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公开(公告)号：US11126013B2
公开(公告)日：2021-09-21
申请号：US16183446
申请日：2018-11-07
发明人： Michael Krause , Thomas Glöge , Christian Lappe , Timo Kratzer , Siegfried Wahl
摘要： A spectacle lens has an object-side front surface and an eye-side rear surface and is made of a base material that includes an ultraviolet (UV) absorber, which functions as a band-stop filter for UV light. In a first variant, the band-stop filter has an upper cut-off wavelength between 325 nm and 360 with a transmittance of 2% for light which is incident on the front surface, transmitted through the spectacle lens, and emerges from the rear surface for each angle of incidence between 0° and 15°. Additionally or alternatively, in a second variant, the spectacle lens has an antireflective coating with a reflectance below 5% for UV light in a wavelength range between 280 nm and a threshold wavelength, which lies between 325 nm and 350 nm, and a reflectance of 5% at the threshold wavelength for each angle of incidence between 30° and 45°.
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公开(公告)号：US11086144B2
公开(公告)日：2021-08-10
申请号：US16657702
申请日：2019-10-18
发明人： Ray Steven Spratt , Sabine Latzel
摘要： An adjustable spectacle lens has a first lens element and a second lens element arranged one behind the other along an optical axis of the lens. The first and second lens element are configured to vary their combined optical properties when moved relative to each other in a direction transverse to the optical axis. The adjustable lens element is an adjustable progressive lens element. The first and second lens element are configured to vary at least one of a size and a power of the near, the distance, and the intermediate portion relative to each other, when the first lens element and the second lens element are moved relative to each other in the direction transverse to the optical axis. The first and second lens elements can be configured to conjointly provide a near, a distance and an intermediate portion that can be changed depending on the visual task.
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89.发明授权公开(公告)号：US11047765B2
公开(公告)日：2021-06-29
申请号：US17074710
申请日：2020-10-20
发明人： Carsten Glasenapp
摘要： A device for measuring the optical effect of an ophthalmic lens, in particular a spectacle lens, includes a display system, an image acquisition system, and a computer unit. During measurement, the lens is arranged in a measurement volume of the device. The display system displays a test structure and the image acquisition system acquires image data of the test structure from multiple viewpoints using imaging optical paths which pass through the lens. The computer unit determines the three-dimensional shape of the lens on the basis of the image data and calculates an optical effect of the lens on the basis of its three-dimensional shape. A corresponding method and computer program are also disclosed.
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公开(公告)号：US20210165250A1
公开(公告)日：2021-06-03
申请号：US17171043
申请日：2021-02-09
IPC分类号： G02C13/00
摘要： A depth information detection device detects an item of depth information relating to a user's head, including a distance from the user's head to the device. On the basis of this depth information and, if applicable, additional information such as images, an evaluation device determines the desired parameters for fitting the spectacles, such as centering parameters.
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