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US 2017/0245758 A1Published application
Systems and methods for remote measurement of the eyes and delivering of sunglasses and eyeglasses
AssigneePerfect Vision Technology (Hk) Ltd.
InventorJunzhong Liang
Life of this patent
Estimating the term…
Abstract
The present disclosure provides methods, devices, and systems for automated measured correction of the eyes and provision of sunglasses and eyeglasses for individuals, including individuals with a visual acuity of 20/20 or better. Methods, devices and systems for remote measurement of refraction by an examiner away from the measurement system are also disclosed.
Claims31
A system for determining a spherical power of an eye for prescription of eyeglasses, comprising:
- a data entry module capable of obtaining a refractive data of an eye of a patient, wherein the data entry module is configured for at least one of a) manually importing the refractive data of the eye from a device, and b) reading an electronic file that contains the refractive data;
- wherein the refractive data includes a spherical power, and an astigmatism having a cylinder power and a cylinder angle;
- an astigmatism module with a plurality of cylindrical lenses for refractive correction of astigmatism in an eye, wherein the astigmatism module is configured such that manual and incremental adjustment to the cylindrical power and cylindrical angle for the combined lenses is excluded;
- a spherical module with a plurality of spherical lenses for refractive correction of myopia, hyperopia and presbyopia, wherein the spherical module is configured for incremental adjustment to provide a plurality of focus powers for each eye, wherein the plurality of cylindrical lenses are set according to the cylinder power and the cylinder angle from the refractive data before the plurality of spherical lenses are adjusted for a subjective response;
- a controller coupled to the spherical module and the astigmatism module, wherein the controller is configured to enable manual and incremental adjustment of focus power and to enable automatic adjustment of the astigmatism;
- a manual control module for manual and incremental control of the spherical module;
- and
- an output module configured to present a refractive prescription in the form of printing, displaying, or exporting, wherein the refractive prescription includes a spherical power based on the subjective response for different settings of the plurality of spherical lenses in the spherical module, and the cylinder power and the cylinder angle imported from the data entry module.
5 more elements
-23. (canceled)
A refraction system for remote measurement of an eye, comprising:
- a module for eye positioning, wherein the module for eye positioning is motion-controlled and comprises a head rest, a motion control system for positioning the head rest at a plurality of positions, and a camera system for real-time monitoring of the relative position between the eye and an optical axis of the refraction system;
- an objective refraction device for measuring refractive errors of the eye, wherein the refractive errors include at least a cylinder power, a cylinder angle, and a spherical power;
- a digital processor configured for controlling the module for eye positioning and the objective refraction device;
- a display module for the digital processor;
- a module of remote control for an examiner to remotely control the digital processor away from and at a different geographic location than the objective refraction device, wherein the module of remote control is connected to the refraction system through an electronic network, the module of remote control comprising at least one of i) a data module for data entry and transfer, ii) a module for voice communication between a patient and an examiner, and iii) a video module for real-time monitoring of the measuring of refractive errors or for communication between the patient and an examiner;
- and
- an output module configured to present a refractive prescription in the form of printing, displaying, or exporting, wherein the refractive prescription includes at least a focus power, a cylinder power and a cylinder angle.
4 more elements
A refraction system for remote measurement of an eye for prescription of eyeglasses, comprising:
- a wavefront sensor module for objective measurement of an eye's refractive errors, comprising:
- a light source configured to produce a compact image at a retina of an eye, wherein reflected light from the retina generates an outgoing wavefront in front of a cornea of the eye from a reflection of the retina;
- a wavefront sensor including a wavefront sampling device and a digital image module for recording images of the outgoing wavefront that passes through the wavefront sampling device;
- a refraction correction module, comprising:
- an astigmatism module with a plurality of cylindrical lenses for refractive correction of astigmatism in the eye, wherein the astigmatism module is configured such that manual and incremental adjustment to the cylindrical lenses is excluded, and selection and arrangement of cylindrical lenses are determined by the astigmatism obtained from a digital computer and the wavefront sensor;
- a spherical module with a plurality of spherical lenses for refractive correction of myopia, hyperopia and presbyopia, wherein the spherical lenses are configured to provide a plurality of focus powers for each eye;
- a module for eye positioning, comprising a head rest, a motion control system for positioning the head rest at a plurality of positions, and a camera system for real-time monitoring of the relative position between the eye and an optical axis of the refraction system;
- a digital processor configured for control of the refraction correction module, the module for eye positioning, and the wavefront sensor module, wherein the digital processor is also configured to take a sequence of wavefront measurements at one time, including a) storing multiple wavefront images into a memory unit, b) providing automatic detections of sampling points of the wavefront sensor, c) calculating wavefront slopes across a pupil of the eye, and d) determining a wave aberration of the eye that includes at least a focus error, an astigmatism, and a spherical aberration;
- a display module for the digital processor;
- an output module configured to present a refractive prescription in the form of printing, displaying, or exporting, and
- a module of remote control for an examiner to remotely control the digital processor away from and at a different geographic location than the refraction correction module, wherein the module of remote control is connected to the refraction correction module through an electronic network, the module of remote control comprising at least one of i) a data module for data entry and transfer, ii) a module for voice communication between a patient and an examiner, and iii) a video module for real-time monitoring of the refraction process or for communication between the patient and an examiner.
8 more elements
-50. (canceled)
Dependencies are inferred from the claim text.