Smart Glass Revolution: EssilorLuxottica And Meta Propel Wearable Innovation

US20250306686 - Electrical Stimulation From A Wristband With Augmented Reality Visual Effects For Remote Haptic Sensations In The Hand, And Systems And Methods Of Use Thereof

A method of providing 

>>Remote haptic feedback is described.

>>The method includes applying, via a set of electrodes of a wearable device, a haptic signal to a first portion of a user.

>> The haptic signal is configured to cause haptic feedback to be perceived at a second portion of the user that is distinct from the first portion of the user.

>> The method further includes causing a visual indication of the haptic feedback at the second portion to be displayed to the user via a display of a head-wearable device.

"Haylo to Invest USD 100M in MicroLED Company Plessey via GoerTek loan"
"Plessey, founded in 2000, specializes in developing ultra–high-resolution Micro LED displays for #AR and #VR devices. The company has collaborated with AR glasses maker Vuzix Corporation and tech giant Meta to jointly develop AR/VR #microdisplay technologies.
In January this year, Plessey and Meta released their latest research results — the world’s brightest red Micro LED display, capable of delivering up to 6,000,000 nits of brightness at high resolution (<5 microns)."

see press release  https://plesseysemiconductors.com/plessey-and-meta-develop-worlds-brightest-red-microled-display-for-ar-glasses/ 

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The Myo armband senses muscle and arm movements to control apps using gestures. We took it apart to check out the hardware and unique construction.

Hitachi’s Metaverse Platform for Nuclear Power Plants enhances collaboration among stakeholders, streamlines design and construction workflows, and supports the development of practical and effective investment plans by integrating metaverse and AI technologies.

Emerging spatial computing systems seamlessly superimpose digital information on the physical environment observed by a user, enabling transformative experiences across various domains, such as entertainment, education, communication and training1–3. However, the widespread adoption of augmented-reality (AR) displays has been limited due to the bulky projection optics of their light engines and their inability to accurately portray three-dimensional (3D) depth cues for virtual content, among other factors4,5. Here we introduce a holographic AR system that overcomes these challenges using a unique combination of inverse-designed full-colour metasurface gratings, a compact dispersion-compensating waveguide geometry and artificial-intelligence-driven holography algorithms. These elements are co-designed to eliminate the need for bulky collimation optics between the spatial light modulator and the waveguide and to present vibrant, full-colour, 3D AR content in a compact device form factor. To deliver unprecedented visual quality with our prototype, we develop an innovative image formation model that combines a physically accurate waveguide model with learned components that are automatically calibrated using camera feedback. Our unique co-design of a nanophotonic metasurface waveguide and artificial-intelligence-driven holographic algorithms represents a significant advancement in creating visually compelling 3D AR experiences in a compact wearable device. We develop a method for providing high-quality, holographic, three-dimensional augmented-reality images in a small form factor suitable for incorporation in eyeglass-scale wearables, using high-refraction-index glass waveguides with nanoscale metasurfaces, and incorporating artificial intelligence.

xMEMS Labs has expanded its µCooling fan-on-a-chip platform into XR smart glasses.

US 20250199317 A1 - Head-Mounted Display With Volume Substrate-Guided Holographic Continuous Lens Optics

Published 19.06.2025: 

recording set-up here

This application relates to a see-through head-mounted display using recorded substrate-guided holographic continuous lens (SGHCL) and a microdisplay with laser illumination. The high diffraction efficiency of the volume SGHCL creates very high luminance of the virtual image.

https://www.projectaria.com

"Project Aria is a research program from Meta, to help build the future responsibly. Project Aria unlocks new possibilities of how we connect with and experience the world.

US20220215375 - Smart-glasses based contactless automated teller machine (“ATM”) transaction processing

A method for touchless communication between an ATM and a smartglasses device worn by a user is provided. The method may be executed at the smartglasses device. The method may include identifying a current global positioning system (“GPS”) location of the ATM. The method may include communicating with an external database to determine an ATM identifier associated with the ATM. The ATM identifier may include ATM communication data. The method may include transmitting an external smartglasses identifier to the ATM via the ATM communication data. The method may include receiving a communication from the ATM. The communication may include an interactive payment interface. The method may include displaying the interactive payment interface on the smartglasses. The method may include receiving one or more commands from the user. The method may include transmitting the one or more commands from the smartglasses to the ATM.

Meta investe 3 miliardi di euro per rafforzare l’alleanza con EssilorLuxottica, già partner dal 2020 nello sviluppo di smart glasses AI

US20250258375 - EYEWEAR DISPLAY HAVING A WAVEGUIDE WITH ADJUSTABLE REFLECTORS
Pupil expansion for waveguided light extration often results in unwanted losses. Smart reflectors driven by eye tracking are a viable solution

US20250273182

Head-Worn Displays with Multi-State Panels

***

Among other possible functions described in the patent, one describes pixelated area ("multi-state" scattering panels) to direct the user sight, based on a trigger.

This is not that novel principle on smartglasses, implemented, for example, with liquid crystals or the like. Other companies proposed versions of the mechanism in the past. What is novel is the implementation by Meta, up to now and the possible novel algorithms to drive the pixellated area layer

***

"The multi-state scattering panels can be selectively activated based on a trigger, such as identification of an object in the real-world environment, based on an event occurring in an XR application executing on the XR display, based on detected audio, etc."

Aspects of the present disclosure integrate pixelated multi-state panels (e.g., liquid crystal dimming panels) into artificial reality (XR) displays (e.g., augmented reality (AR) glasses) or conventional glasses. Conventional visual displays for XR displays can be expensive, have a low field-of-view, and consume high power. On the other hand, pixelated multi-state panels consume lower power, have a wide field-of-view, and are light, inexpensive, and computationally simple. The multi-state panels can have 4 configurations: 1) included on the periphery of an XR display, 2) as a standalone display, 3) as a display that's overlaid onto an XR display, and/or 4) as a secondary externally facing display. The multi-state panels can be selectively activated based on a trigger, such as identification of an object in the real-world environment, based on an event occurring in an XR application executing on the XR display, based on detected audio, etc.

WO2025171242 -
HOLOGRAPHIC TWO-DIMENSIONAL (2D) IMAGE PROJECTION FOR AN AUGMENTED REALITY (AR) WAVEGUIDE DISPLAY
Systems, methods, and/or apparatuses for a holographic projection module in a near-eye display device, which may display

>>augmented reality/virtual reality (AR/VR) content to the user. In one aspect,
>>a spatial light modulator (SLM) is illuminated by a planar wavefront,
>>which the SLM modulates with a pattern and projects the patterned light through a projection lens to form a 2D hologram which is input to
>>a waveguide display.

>>Some examples may include a high-order filter to form an aperture in the Fourier domain controllable by the phase pattern displayed on the SLM; other examples may have no projection lenses, where the displayed SLM image corresponds to the user perceived Fourier domain image representation.

>>Some examples may use two stacked SLMs, a complex wavefront modulation SLM,

>>and/or a phase SLM with a mask (such as, e.g., a binary amplitude mask).

https://youtu.be/wPKfrYrFjBM Meta's been on a roll, partnering with Ray-Ban and now with Oakley to debut the HSTN glasses, but remember when Google was sort of the de-facto leader in the smart headset space? Sure, Google Glass and Google Cardboard were VERY early for their times

US20160034679 -

Wearable device and method of operating the same - SAMSUNG ELECTRONICS CO., LTD.

Samsung has filed a patent for a wearable sensor that can read the user's veins to establish his or her identity. If implemented, this allows Samsung's future wearables to double as keys for doors and cars.
"The sensor takes a picture of the user’s vein structure and characteristics, then compares it to a vein image in its memory that it knows belongs to the user. The sensor might also detect the user’s pulse rate, which is also unique from person to person."Check also, from 2016
https://www.fastcompany.com/3056357/this-samsung-patent-lets-smartwatches-recognize-you-by-your-veins 

EssilorLuxottica has is the undisputed leader on everything to do with vision. How does a company commanding an entire industry continue to grow?

US20250181182

- Electronic Device Display With Array of Discrete Light-Emitting Diodes

An electronic device may include a display. The display may be formed by an array of light-emitting diodes mounted to the surface of a substrate. The substrate may be a silicon substrate. Circuitry may be located in spaces between the light-emitting diodes. Circuitry may also be located on the rear surface of the silicon substrate and may be coupled to the array of light-emitting diodes using through-silicon vias. The circuitry may include integrated circuits and other components that are attached to the substrate and may include transistors and other circuitry formed within the silicon substrate. Touch sensor electrodes, light sensors, and other components may be located in the spaces between the light-emitting diodes. The substrate may be formed from a transparent material that allows image light to reach a lens and image sensor mounted below the substrate.

US20250172815 - WAVEGUIDE COMBINER ASSEMBLIES FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAYS 

SNAP inc. Pubblication of Application  29.05.2025

According to a first aspect of the invention, there is provided a waveguide combiner assembly for an augmented reality or virtual reality display, comprising:

a waveguide combiner, having front and rear surfaces which are each substantially parallel to a waveguide plane, the direction normal to the waveguide plane being the waveguide axis, and the distance between the front and rear surfaces along the waveguide axis being the thickness of the waveguide combiner;

a chassis including a support arm for supporting the waveguide combiner, the support arm defining a cavity between front and rear walls of the support arm which are spaced along a first direction by a distance greater than the thickness of the waveguide combiner, the waveguide axis and the first direction defining an offset angle between them which may be zero or non-zero, an edge portion of the waveguide combiner extending into the cavity; and

at least one actively adjustable mounting structure configured to hold a respective point of the edge portion of the waveguide combiner at a selected position relative to the support arm, thereby enabling adjustment of the offset angle.

In this way, the waveguide combiner integrated within the claimed waveguide combiner assembly can be spatially adjusted relative to the support arm of the chassis, thanks to the at least one actively adjustable mounting structure and without the external assistance of an external intricate optical jig and the use of glue to lock the waveguide combiner in position, which significantly eases the process of positioning the waveguide combiner and reduces the associated cost.