WO2025141237A1 - Instrument optoélectronique binoculaire de type lunettes pour l'amélioration de la vue des deux yeux et méthode d'amélioration de la vue - Google Patents

Instrument optoélectronique binoculaire de type lunettes pour l'amélioration de la vue des deux yeux et méthode d'amélioration de la vue Download PDF

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Publication number
WO2025141237A1
WO2025141237A1 PCT/ES2024/070805 ES2024070805W WO2025141237A1 WO 2025141237 A1 WO2025141237 A1 WO 2025141237A1 ES 2024070805 W ES2024070805 W ES 2024070805W WO 2025141237 A1 WO2025141237 A1 WO 2025141237A1
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WO
WIPO (PCT)
Prior art keywords
instrument
binocular
glasses type
type according
visual
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Pending
Application number
PCT/ES2024/070805
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English (en)
Spanish (es)
Inventor
Pablo Artal Soriano
Shoaib R. SOOMRO
Alba PANIAGUA DIAZ
Juan MOMPEÁN ESTEBAN
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Universidad de Murcia
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Universidad de Murcia
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Publication of WO2025141237A1 publication Critical patent/WO2025141237A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • G02B27/0068—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration having means for controlling the degree of correction, e.g. using phase modulators, movable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking

Definitions

  • the present invention relates to a binocular optoelectronic eyeglass-type instrument for visual enhancement in a clear configuration by correcting ocular aberrations.
  • the present invention also relates to a method for achieving simultaneous visual enhancement for both eyes, and for operating, controlling, and communicating with the instrument.
  • optical aberrations are a leading cause of visual impairment worldwide.
  • Conventional methods for correcting optical aberrations involve the placement of fixed optical elements, such as spectacles and contact lenses.
  • these spectacles and contact lenses have limited effectiveness in improving visual quality.
  • More advanced methods allow complex ocular aberrations to be measured and corrected using optoelectronic techniques, such as variable focus lenses and phase modulators, which are classified as adaptive optics correction methods.
  • Adaptive optics offers highly accurate correction of complex ocular aberrations in real time, performed by digitally controlled phase modulators.
  • the phase modulators typically used are spatial light modulators based on liquid crystals or deformable mirrors. These devices can manipulate the wavefront of incoming light before it reaches the eye. These ophthalmic devices can be used to correct or simulate vision, correcting the eye's natural aberrations or inducing strategic aberrations while monitoring visual performance.
  • Hartmann-Shack sensor is still widely used in clinical vision simulators and other adaptive optics instruments for objective evaluation of aberrations.
  • Other inventions related to the present proposed invention are described below:
  • US Patent 8,506,082 B2 discloses an ophthalmic adaptive optics system and imaging apparatus for correcting aberrations in light illuminating the eye. It also includes a wavefront sensor that receives light reflected by the eye to perform closed-loop wavefront correction.
  • US Patent No. 1,136,328 B1 discloses a portable optical device for vision impairments.
  • the device has pixelated active transparent lenses that are attached to an eyeglass frame.
  • An eye tracker and controller track pupil movement and create a dynamic mask on the surface of the pixelated lens to block light from selected portions of the eye's pupil.
  • US patent 8,154,804 B2 discloses an electro-optic lens for correcting higher-order aberrations.
  • the lens contains substrate layers and rings of electrode layers.
  • the voltage applied to the electrode layers creates an electric field that rotates the optical phase profile of the lens to correct spherical aberration.
  • US Patent 8,348,424 B2 discloses a variable focus ophthalmic contact lens for adaptive defocus correction and the associated manufacturing method.
  • the contact lens has a variable focus optical insert that is powered by an associated power source. It also discloses a manufacturing method that utilizes silicone hydrogel casting.
  • US Patent 9,554,889 B2 discloses a method and system for manufacturing a wavefront-guided scleral lens prosthetic device.
  • the scleral lens is customized for an eye and embedded with the aberration-correcting phase profile for a particular subject.
  • US Patent 10,317,680 B1 discloses a head-mounted autofocus display that dynamically generates aberration-adjusted images based on eye position and orientation. The process de-distorts the generated image to correct for observations that would otherwise affect the perceived image quality.
  • the invention also presents a method for visual improvement by correcting ocular aberrations by phase modulation, which uses a binocular optoelectronic instrument of the glasses type of the invention comprising the following steps:
  • phase profiles relating to aberration correction in the processing module and transmission of the phase profiles to the phase modulator panel for binocular visual improvement by correcting ocular aberrations
  • An optoelectronic eyeglass-like instrument and associated method are provided for simultaneous binocular visual enhancement by correcting complex ocular aberrations, to provide aberration-free perception of clear, real-world vision to subjects suffering from various ocular pathologies.
  • the eyeglass-like instrument also provides the perception of improved vision, such as that which would occur after a deviated eye undergoes a surgical procedure, such as the implantation of different infraocular lenses or LASIK surgery.
  • FIGS. 1A and 1B show the conceptual illustration of the optoelectronic binocular eyeglasses instrument indicating different parts of the instrument.
  • FIG. 1A illustrates the eyeglasses type form factor and
  • FIG. 1B shows the helmet type form factor.
  • FIGS. 2A and 2B show the optical arrangement of the binocular spectacle-like instrument utilizing the p ⁇ phase modulator and other relevant optical components.
  • FIG. 2A shows the visual enhancement in a narrow field of view covering only the central field of view.
  • FIG. 2B shows the beam splitter version of a similar optical arrangement enabling wide field of view visual perception in which the visual enhancements are made for the central field of view and the peripheral field of view is perceived without manipulation.
  • FIG. 3 shows the optical design of binocular glasses using a p ⁇ phase modulator together with the optical waveguides and other relevant optical components.
  • FIGS. 4A and 4B show the optical arrangement of binocular glasses with a 2p ⁇ phase modulator and other relevant optical components.
  • FIG. 4A shows the visual enhancement in a narrow field of view covering only the central field of view.
  • FIG. 4B shows the version of a similar optical arrangement with beam splitters that allows for wide field of view visual perception in which visual enhancements are made for the central field of view and the peripheral field of view is perceived without manipulation.
  • FIGS. 5A and 5B show how the instrument connects to an external device that potentially controls and/or monitors the correction device.
  • the connection can be wired or wireless as illustrated in FIG. 5A and FIG. 5B, respectively.
  • the present invention relates to an optoelectronic eyeglass-type instrument for simultaneous and independent visual enhancement of both eyes by correcting ocular aberration, and a method associated with the control, connectivity, calculations, and operation of the eyeglass-type instrument.
  • the disclosed instrument is an eyeglass-type instrument with a compact, transparent configuration and may have tethered, wireless, and/or fully mobile operating capabilities.
  • the eyeglass form factor may resemble a pair of glasses 01a or be similar to a headset 01b.
  • Fig. 1 A and Fig. 1 B show representations of the disclosed eyewear in the form of goggles 01 a and helmets 01 b.
  • the goggle-type instrument has two separate and independent optoelectronic modules (03 and 04) to improve the vision of the left and right eyes respectively.
  • the instrument also has two entrance pupils (05 and 06) and two exit pupils (07 and 08) for both eyes.
  • the goggle-type instruments have image capture devices (09 and 10) to obtain images of the pupils and track their movements.
  • Both modules (03 and 04) in Fig. 1 A and Fig. 1 B use a symmetric optical configuration, while the wavefront manipulations for the left and right eyes are controlled independently and can induce similar or different aberration correction in each eye.
  • Each module contains a subset of mirrors 11 for pre-correcting the view rotation.
  • a fixed-size diaphragm serves as the entrance pupil of the optical system.
  • Incoming scene light corresponding to the central field of view 20 of a live, clear scene 19 is reflected through one face of a reflecting prism 12 and transmitted to a pupil-conjugating telescope composed of miniature lenses 13.
  • the conjugated pupil plane 14 is produced in the respective phase modulator 15, 16, where the first step of wavefront manipulation is executed.
  • the reflected light passes through another pupil-conjugating telescope containing a pair of lenses 13 together with a folding mirror 11.
  • the conjugated pupil is now produced in the different physical area of the phase modulator 15, 16, where the second and final step of wavefront manipulation is executed.
  • the fully corrected wavefront is then transmitted to the exit pupils (07 and 08) after passing through another pair of lenses 13 and being reflected through the opposite side of the prism 12.
  • the presence of the prism 12 in Fig. 2A allows the perception of a clear online scene.
  • the subject's eyes (17 and 18) are then located in the respective exit pupils (07 and 08) of the system and provide aberration-corrected binocular vision.
  • phase modulators 15, 16 are used for each of the eyes 17, 18.
  • Fig. 3 shows the optical arrangement of the third embodiment of binocular glasses incorporating optical waveguides 24 for light transmission along with other optical components.
  • the waveguide-based module contains a pair of optical waveguides 24 for each of the eyes located near the entrance (05 and 06) and exit (07 and 08) pupils, respectively.
  • Each waveguide 24 has an input coupler 25 and an output coupler 26.
  • the input and output couplers 25, 26 may be diffraction gratings or holographic optical elements.
  • the optical waveguide 24 allows for light transmission and pupil replication such that the size of the eyeglass-like instrument can be further miniaturized.
  • the remainder of the optical path remains the same and wavefront manipulation is performed in the same manner as described in the embodiments of Fig. 2A and Fig. 2B.
  • the optical waveguides 24 are incorporated for pupil replication and light transmission in a compact size.
  • phase modulators 15, 16 are used for each of the eyes 17, 18.
  • Fig. 4A shows the optical arrangement of the fourth embodiment of the binocular spectacle-like instrument utilizing 2p ⁇ phase modulators (27 and 28).
  • the optical components include mirrors 11, lenses 13, and prisms 12 that allow retransmission of incoming light from entrance pupils 05, 06 to exit pupils 07, 08.
  • Light from the scene, under this configuration passes through the entrance pupils (05 and 06), reflects through prism 12, and bends mirrors 11 and conjugates to the respective phase modulator (27 and 28) using the telescoping arrangement of lenses 13.
  • Wavefront manipulations are performed at the entrance pupils (05 and 06).
  • Wavefront manipulations are performed in the conjugate pupil plane 14 and the aberration-corrected light is transmitted to the subject's eyes (17 and 18).
  • this embodiment does not require an additional conjugation and modulation step because the complete phase modulation is achieved in a single step.
  • phase modulators 27, 28 are used for each of the eyes 17, 18.
  • Fig. 5A shows a diagram of a cable interface or connection 29 between the correction device (01 a, 01 b) and the processing module 30 in the form of a computing device.
  • the connection is represented as a USB in the figure, any other protocol could be used.
  • This connection is potentially used to transfer data from the cameras and/or any other sensors in the helmets. In addition, it provides a channel to control the correction being applied.
  • Fig. 5B shows the diagram of a wireless interface 31 or connection between the correction device (01 a, 01 b) and the processing module 30 in the form of a computing device. Similar to a wired connection, a wireless connection provides a full-duplex channel for sending and receiving data and commands between the headset and the computing device.
  • Phase modulators 15, 16, 27, 28 can be based on vertically aligned liquid crystal on silicon technology, reflective liquid crystal p ⁇ phase modulator, and used in double conjugation for 2p ⁇ modulation.
  • the image capture device 09, 10 may comprise an infrared image sensor and an infrared illumination source for capturing images of the pupil.
  • the image capture device 09, 10 may comprise a visible light sensor and a visible illumination source for imaging the pupil.
  • Subject 02 perceives vision with visibility of the real-world view as he would see it with glasses.
  • Pupil alignment and adaptation are facilitated by adjusting the interpupillary distance and vertical translation with the aid of the pupil-tracking camera.
  • phase profile relative to the correction of the known aberrations of the subject's eye is computationally generated and transmitted to the phase modulator panel.
  • ⁇ phase modulators 15, 16 such as Fig. 2A, Fig. 2B and Fig. 3
  • the two phase profiles side by side are transmitted to the panel ensuring complete phase modulation in two subsequent steps.
  • 2 ⁇ phase modulators 27, 28 such as Fig. 4
  • a monophasic profile is generated and transmitted, and the wavefront manipulation is performed in a single step.
  • the pupil wavefront is modified to correct underlying aberrations and transmitted to the exit pupils 07, 08, which illuminate the target eye.
  • the phase profiles are generated from the Zernike coefficients of the subject's eyes, which are pre-measured and already available to the eyewear system.
  • the binocular glasses 01 a, 01 b are controlled and operated in two ways.
  • the first method involves the connectivity of the glasses 01 a, 01 b with a processing module in the form of a computing device 30, such as a computer, a tablet, a smartphone, or an embedded computing device.
  • the connectivity is ensured by a wired interface 29, as illustrated in Fig. 5A, or a wireless interface 31, as illustrated in Fig. 5B.
  • the computing device 30 handles all calculations, control, and operation. General information about the glasses. Captured eye images are transmitted to the processing unit, where they are processed, while phase profiles are calculated and generated in the processing unit and transmitted to the glasses' phase modulator(s).
  • the second method comprises a compact processing unit that is part of the headset, and all calculations, control, and instrument operations are managed within the headset.
  • the compact processing unit may be a single-board computer or an application-specific integrated circuit (ASI) and contains its energy storage module.
  • Basic control functions are provided to the subject through an input interface, such as buttons or a touchpad, which is also integrated into the headset 01 a, 01 b.
  • an optional external device may be used for configuration and/or monitoring, which may be connected by cable or wirelessly.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
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Abstract

Instrument optoélectronique binoculaire de type lunettes pour l'amélioration de la vue des deux yeux et méthode d'amélioration de la vue. L'instrument comprend : - au moins un modulateur de phase (15, 16, 27, 28) pour manipuler le front d'onde des pupilles de chaque œil, pour réaliser la correction visuelle des aberrations oculaires, - un ensemble binoculaire de composants optiques pour transmettre la lumière des pupilles d'entrée (05, 06) aux pupilles de sortie (07, 08), - un module de traitement (30) pour la communication, la commande et les calculs, et - au moins un dispositif (09, 10) de capture d'images. La méthode associée comprend la génération et la transmission de profils de phase pour la correction visuelle binoculaire des aberrations oculaires, la capture d'images et le suivi des pupilles de chaque œil, ainsi que les calculs, la commande, la connectivité et le fonctionnement de l'instrument.
PCT/ES2024/070805 2023-12-28 2024-12-23 Instrument optoélectronique binoculaire de type lunettes pour l'amélioration de la vue des deux yeux et méthode d'amélioration de la vue Pending WO2025141237A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP202331093 2023-12-28
ES202331093A ES3030938A1 (es) 2023-12-28 2023-12-28 Instrumento optoelectrónico binocular de tipo gafa para la mejora visual de ambos ojos y método para la mejora visual

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WO2025141237A1 true WO2025141237A1 (fr) 2025-07-03

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PCT/ES2024/070805 Pending WO2025141237A1 (fr) 2023-12-28 2024-12-23 Instrument optoélectronique binoculaire de type lunettes pour l'amélioration de la vue des deux yeux et méthode d'amélioration de la vue

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ES (1) ES3030938A1 (fr)
WO (1) WO2025141237A1 (fr)

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