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公开(公告)号：US20220225872A1
公开(公告)日：2022-07-21
申请号：US17614477
申请日：2020-05-28
摘要： The invention concerns a couple of test images, for a binocular refraction method, that comprises: —a first test image (21) to be provided to a first eye of a subject, comprising a central image (21c) surrounded by a first peripheral image (21p), this central image comprising at least one optotype (21o); and - a second test image (22) to be provided to a second eye of the subject, comprising a central image (22c) surrounded by a second peripheral image (22p) substantially identical to the first peripheral image, this central image being deprived of optotypes, or comprising only optotypes (22o) with a low contrast or sharpness level. The invention concerns also an associated binocular refraction method and refraction instrument, and an associated computer program.
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公开(公告)号：US20210311325A1
公开(公告)日：2021-10-07
申请号：US17261479
申请日：2019-07-19
摘要： Disclosed is a hoist apparatus including: an electric motor, and a control box that can be electrically powered by a power supply, the control box including at least an electronic control circuit, an electrical wiring and an external casing forming a box of the control box, the external casing including at least sidewalls and a removable lid closing the box, the control box controlling the operations of the electric motor thanks to the electrical wiring connected to the electronic control circuit, to the power supply and to the electric motor, and a monitoring device, wherein the monitoring device is an insert of the box, the monitoring device being arranged within an enclosure, the enclosure being an added part of the box or being an exchanged part of the box and wherein the monitoring device is connected to the electrical wiring.
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公开(公告)号：US20240206725A1
公开(公告)日：2024-06-27
申请号：US18555652
申请日：2022-04-26
发明人： Martha HERNANDEZ-CASTANEDA , Cécile PETIGNAUD , Denis ROUSSEAU , Stéphane PERROT , Gildas MARIN
CPC分类号： A61B3/08 , A61B3/005 , A61B3/0285
摘要： An optometric testing device comprising a first shutter and a second shutter placed in front of two eyes of a patient and configured to present an activated state in which a shutter blocks the propagation of light and a deactivated state in which the shutter allows the propagation of light, a communication unit configured to communicate with a display system in order to send and/or receive a synchronization signal, and a control unit configured to command each shutter as a function of the synchronization signal so that the first shutter and the second shutter change state with a first frequency and a second frequency, wherein the control unit is configured to command each shutter so that the first frequency is different from the second frequency and/or so that a duty cycle of activation of the first shutter is different from a duty cycle of activation of the second shutter.
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公开(公告)号：US20200064656A1
公开(公告)日：2020-02-27
申请号：US16609629
申请日：2018-05-02
摘要： A method for determining a cylinder of an ophthalmic lens to be mounted on a spectacle frame is provided, the method including: providing a measuring device configured to run a Jackson Cross Cylinder procedure; determining components of a first vector of the cylinder in a two-dimensional vector cylinder representation; and determining components of a second vector of the cylinder in the two-dimensional vector cylinder representation, the components of the second vector of the cylinder being determined such that a Euclidian distance between the first vector and the second vector is independent of a value of the cylinder.
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5.发明申请公开(公告)号：US20170299890A1
公开(公告)日：2017-10-19
申请号：US15513387
申请日：2015-09-28
摘要： A multifocal lens supply system including a multifocal lens ordering computing unit and a multifocal lens determination computing unit, for providing to a wearer a customized progressive spectacle ophthalmic lens having a customized addition Addc, wherein Addc=Addp+corr, wherein corr is a corrective value which is the output of a function where the input is at least an individual wearer parameter value and at least an output value over the input range is different from nil, and wherein Addp is a prescribed addition.
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公开(公告)号：US20240197169A1
公开(公告)日：2024-06-20
申请号：US18555621
申请日：2022-04-22
CPC分类号： A61B3/0285 , A61B3/0083 , A61B3/032 , A61B3/08 , A61B3/113
摘要： A method using an optometry device having a refraction test unit with a first optical refraction element adapted to provide different vision correction powers to a first eye of the subject along a first optical axis and a second optical refraction element adapted to provide different vision correction powers to the second eye of the subject along a second optical axis. The method includes adjusting the relative position of the subject and the refraction test unit, determining a vertex distance between the first or second optical refraction element and the first or second eye of the subject, determining a value of a parameter representative of an accommodation feature of the eyes of the subject, determining preliminary values of the refractive features of the eyes of the subject in near and/or intermediary vision conditions, checking binocular visual perception of the subject, and determining a final visual acuity of the subject.
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公开(公告)号：US20190310478A1
公开(公告)日：2019-10-10
申请号：US16345510
申请日：2016-10-28
发明人： Gildas MARIN , Martha HERNANDEZ-CASTANEDA , Konogan BARANTON , Bruno FERMIGIER , Aude BOUCHIER , Jean SAHLER
IPC分类号： G02B27/01 , A61B3/11 , G06F3/01 , H04N13/344
摘要： Disclosed is a method for determining an eye parameter of a user of a display device, the eye parameter relating to a dioptric parameter of an ophthalmic lens to be provided to the user, the method including: a display device providing step, during which a binocular display device is provided to the user,—an image display step, during which an image is displayed to the user when using the display device; a display parameter modifying step, during which at least one parameter of the display device is modified so as to modify the virtual display distance of the perceived image, wherein the display parameter modifying step is repeated until image subjective quality of the perceived image is perceived by the user as optimal; and an eye parameter determining step during which an eye parameter is determined based on the parameter of the display device.
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8.发明申请公开(公告)号：US20170357105A1
公开(公告)日：2017-12-14
申请号：US15522474
申请日：2014-10-31
摘要： Disclosed is a method for optical design of a pair of ophthalmic lenses for correcting spherical and cylindrical refractive errors of the eyes of a wearer, including a step of defining the need for spherical and cylindrical correction of the wearer for various viewing distances, and a step of determining the spherical and cylindrical power of the ophthalmic lenses at viewing points with various proximities, in accordance with the correction needs of the wearer. The power of at least one of the two ophthalmic lenses is determined such as to limit the deviation obtained therebetween upon adding equivalent spherical power between the viewing points with various proximities and/or varying the cylindrical power vector between the viewing points with various proximities. Also disclosed is a pair of ophthalmic lenses designed according to such a method.
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公开(公告)号：US20240188816A1
公开(公告)日：2024-06-13
申请号：US18555637
申请日：2022-04-22
发明人： Martha HERNANDEZ-CASTANEDA , Cécile PETIGNAUD , Gildas MARIN , Loïc BAILLON , Stéphane PERROT , Denis ROUSSEAU
CPC分类号： A61B3/0285 , A61B3/005 , A61B3/032
摘要： An optometry device for binocular testing of the eyes of a subject, including a binocular refraction test unit with a first optical refraction element adapted to provide different vision correction powers along a first optical axis and a second optical refraction element adapted to provide different vision correction powers along a second optical axis, and a display system for providing a first and a second test images, the first test image being conveyed to the first optical refraction element along a first optical pathway and the second test image being conveyed to the second optical refraction element along a second optical pathway. The first and second test image being provided with details smaller than 1 arc minute, over a field of view of at least 8° in horizontal directions, the first and second optical pathways having a length between 25 and 100 centimeters.
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公开(公告)号：US20230139007A1
公开(公告)日：2023-05-04
申请号：US17906712
申请日：2021-03-17
摘要： A system for determining a value of a magnitude associated with a subjective value of an optical feature of at least a corrective lens adapted to an eye of a subject, by implementing a subjective test where the subject is asked to describe his visual performance in a plurality of real optical conditions by choosing one descriptive answer among a set of possible descriptive answers. The system includes one or more processor programmed to collect the results of the subjective test, performed by asking the subject to describe his visual performance in each real optical condition of the plurality of real optical conditions by choosing, for each real optical condition, one descriptive answer, the results comprising each descriptive answer chosen and the corresponding real optical condition, and determine the value of the magnitude by taking into account the initial model and each descriptive answer collected.
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