Apple is working on a smart home camera that doesn’t save video recordings, having a new approach towards data handling, that passes by Recognition and a feature named "Secure Exclave". Last September the company published "Audio Intelligence Privacy Overview", its own, new philosophy over data handling, privacy and security. How do relate privacy laws to the new advanced and intelligent funcionalities? Can one freely 'record' sound and images just filtering out and sending to memory selected attibutes ("always-listening, often-recapping")?
Beware: all what it is stated for audio, will apply to video as well
Reportedly, Google is also working at a similar kind of audio and video data processing without recording.
Head-mounted display device with vision correction US11874530B2
Liquid crystal are adopted for electro-driven cylindrical tunable lenses. A sensor detects refractive index error during scanning, while visual content are projected as stimuli (2024)
"In some embodiments, the reflector may be a metamirror including a plurality of nanostructures provided along a surface of a lens of the near-eye wearable device facing an eyeball of the user. Even when a metamirror in which the reflection angle of light changes depending on the wavelength of the light is used as a reflector, chromatic aberration can be reduced."
"The field of near-eye optics, particularly in the context of augmented reality eyewear and smart glasses, faces significant challenges in integrating electronic circuitry directly onto ophthalmic lenseswithout degrading optical performance or user experience. These conductive islands are formed from a transparent conductive coating that is patterned into non-geometric shapes and separated by variable-width insulating gaps.This configuration ensures electrical isolation between adjacent conductive regions while maintaining high optical transmission (e.g., at least 90% in the visible spectrum) and low haze (e.g., below 1%), thereby preserving the see-through quality of the lens. The transparent conductive coating is engineered to achieve low sheet resistance (e.g., less than 15 ohms per square), enabling reliable electrical performance without the need for visible metal traces. The non-geometric patterning and variable gap spacing minimize visual conspicuity and eliminate sharp edges, further enhancing the optical uniformity and user experience."
Suitable MATERIALS include transparent conductive oxides such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum-doped zinc oxide (AZO), or fluorine-doped tin oxide (FTO). Alternatives include metal nanowire networks (silver, copper, gold), graphene, carbon-nanotube meshes, conductive polymers such as PEDOT:PSS, ultrathin metallic grids, or hybrid stacks combining TCO and metal. The transparent conductive coating thickness may be 50-300 nanometers. The transparent conductive coating thickness may be 100-150 nanometers. The transparent conductive coating thickness may be less than 200 nanometers. Deposition may be by sputtering, evaporation, atomic layer deposition, solution coating, or printing followed by patterning and etching.
EssilorLuxottica is setting up production lines for smart glasses in Italy. This could give the group and technology partner Meta a significant advantage.
US20250291100 - OPTICAL MATERIAL ENCAPSULATED DIFFRACTIVE GRATINGS
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Due to the sets of grating structures of a lightguide directing light based on the parameters of the grating structures, changing how a set of grating structures directs light requires modifying one or more parameters of the grating structures. However, modifying the parameters of the grating structures requires fabricating a new set of grating structures with the modified parameters.[...]
As such, modifying the parameters of the grating structures to compensate for manufacturing tolerances, manufacturing errors, design changes, and the like requires new sets of grating structures to be fabricated, increasing the cost and time needed to manufacture lightguides including these sets of grating structures.
While fabricating a lightguide including such sets of diffractive grating structures, certain conditions arise requiring how a set of diffractive grating structures directs light to be modified (e.g., requiring the diffraction efficiency of the set of diffractive grating structures to be modified). For example, in response to certain tolerances in the manufacturing process of a lightguide, one or more components of a lightguide (e.g., incoupler, EPE, outcoupler, body) deviate from a desired function (e.g., one or more components of the lightguide disperse light differently than intended). To compensate for these deviations, the diffraction efficiencies of one or more sets of diffractive grating structures are modified such that the lightguide functions as intended. As another example, certain characteristics or parameters for a set of diffractive grating structures increase the chance of introducing deformities in one or more components of the lightguide during the manufacturing processes such as air bubbles, working stamp damage, or the like. Such deformities in the components of the lightguide prevent these components from operating as intended. To compensate for these deformities, the diffraction efficiencies at which one or more sets of diffractive grating structures direct light are modified such that the lightguide operates as desired.
However, because a set of diffractive grating structures is configured to direct light based on the physical parameters (e.g., angle, depth, period) of the diffractive grating structures in the set of diffractive grating structures, modifying how a set of diffractive gratings directs light (e.g., modifying the diffraction efficiency) requires changing one or more parameters of the diffractive grating structures. To change these physical parameters, the diffractive grating structures must be refabricated with the modified parameters, which increases the time and cost required to fabricate the lightguide. To this end, systems and techniques disclosed herein are directed to a lightguide including a deposited optical material configured to modify how a set of diffractive grating structures directs received light (e.g., to modify the diffraction efficiency at which a set of diffractive grating structures directs received light). For example, such a lightguide includes a substrate having opposing surfaces that is formed from an effectively transparent material so as to allow a user to view a real-world space in front of the user. Deposed on a first surface of this substrate is a set of diffractive grating structures having one or more predetermined parameters based on a pattern of a master stamp, such as predetermined angles, predetermined duty cycles, predetermined periods, predetermined heights, and the like. Additionally, the lightguide includes an optical material deposited on the first surface of the substrate such that one or more diffractive grating structures of the set of diffractive grating structures are at least partially encapsulated by the optical material. Such an optical material, for example, has a predetermined refractive index that causes a fraction of the light received by the optical material to be diffracted at an angle based on the predetermined refractive index. As an example, the optical material includes a refractive index that causes a fraction of light received by the optical material to be directed toward the set of diffractive grating structures, a surface of the lightguide, or both such that the fraction of light is incident upon a surface of the lightguide, the diffractive grating structures of the set of diffractive grating structures, or both at a predetermined angle. The surfaces of the lightguide, the set of diffractive grating structures, or both then direct the received fraction of light based on one or more parameters of the diffractive grating structures, the predetermined angle upon which the received light is incident, or both.
In this way, a lightguide allows how a set of diffractive grating structures directs light to be modified without changing the physical parameters of the diffractive grating structures. That is to say, the lightguide allows for the diffractive index of a set of diffractive gratings to be modified without changing the physical parameters of the diffractive grating structures.
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TIMESTAMPS 0:00 Intro 0:45 Project Aura Explained in Plain Terms 1:54 Why Google Partnered Instead of Building Everything In-House 3:09 The Hardware Philosophy Behind Aura 4:23 Android XR Is the Real Product Here 4:42 Gemini Is What Finally Makes Smart Glasses Make Sense 7:00 How Google’s Approach Stacks Up Against Apple and Meta 8:37 The Trust Problem Google Has To Get Right This Time 10:23 What the Timeline Really Tells Us About Google’s Intentions
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.
EP4605795 - AUGMENTED REALITY DISPLAY WITH FREEFORM OPTICS AND INTEGRATED PRESCRIPTION LENS
A dual-component lightguide employs two freeform surfaces separated by a gap with prescription lens integration. A world-side component includes a spherical world-side surface and a freeform eye-side surface An eye-side component ncludes a freeform world-side surface that conforms to the freeform eye-side surface of the world-side component and an eye-side surface that is shaped to provide corrective optics based on a desired prescription.
"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)."
From a collaboration between Meta Reality Lab and Stanford University
Choi, S., Jang, C., Lanman, D. et al. Synthetic aperture waveguide holography for compact mixed-reality displays with large étendue. Nat. Photon. 19, 854–863 (2025), a group of scientists top in the area
An illustration of the synthetic aperture waveguide holography principle. The illumination module consists of a collimated fibre-coupled laser, a MEMS mirror that steers the input light angle, and a holographic waveguide. Together, these components serve as a partially coherent backlight of the SLM. The SLM is synchronized with the MEMS mirror and creates a holographic light field, which is focused towards the user’s eye using an eyepiece lens. Our design achieves an ultra-thin form factor as it consists only of flat optical elements and it does not require optical path length to form an image. The steered illumination mechanism produces a synthetic aperture, which supports a two-orders-of-magnitude larger étendue than that intrinsic to the SLM. Our angle-encoded holographic waveguide and apochromatic holographic lens design solve bidirectional diffraction noise and chromatic dispersion issues, respectively.
"Light-Form Technology is a new manufacturing platform that produces ophthalmic progressive lenses using a 3D process to print lenses in a few seconds, in a single step, using a single flash of light." read here
OPTICAL ELEMENTS FORMED FROM HIGH REFRACTIVE INDEX ORGANIC SOLID CRYSTAL COMPOSITES
Meta: organic solid crystals - high refractive index optical elements for compact form factors and more
In optoelectronics, state of the art materials include inorganic, liquid crystal, and polymer materials. However, these materials are quickly reaching their application limits due to issues such as weight, limited refractiveindex, limited birefringence, and lack of tunability. Due to current materials limitations, devices are restricted in size/weight, optoelectronic performance, such as angular bandwidth and resolution, and manufacturability. Small molecular solidorganic materials allow for the formation of novel active and passive optoelectronic elements that can be cheap, and light weight.
[...]
Organic solid crystal composite materials may be incorporated into devices and systems including passive and active optical waveguides, resonators, lasers, optical modulators, etc. Further example active optics include projectors and projection optics, ophthalmic high index lenses, eye-tracking, gradient-index optics, Pancharatnam-Berry phase (PBP) lenses, microlenses, pupil steering elements, optical computing, fiber optics, rewritable optical data storage, all-optical logic gates, multi-wavelength optical data processing, optical transistors, etc. According to further embodiments, organic solid crystal composite materials may be incorporated into passive optics, such as windows, optical prisms, waveguides, reflective polarizers, refractive/diffractive lenses, and the like. Related optical elements for passive optics may include polarization selective gratings, Fresnel lenses, microlenses, geometric lenses, PBP lenses, optical light pipes, optical diffusers, beamsplitters, and multilayer thin films. In connection with exemplary devices and applications, a device or system may include an optical element such as a waveguide for guiding light.
According yet other embodiments, methods for forming an antireflection coating on a metasurface are provided. In some embodiments, a method may comprise providing an optically transmissive substrate comprising a metasurface, the metasurface comprising a plurality of nanostructures, depositing a layer of an optically transparent material over the plurality of nanostructures, wherein the layer of optically transparent material forms the antireflection coating.
According to some embodiments, the optically transparent material comprises a polymer. In some embodiments, the optically transparent material comprises photoresist. In some embodiments, a distance from a topmost surface of the nanostructures to a topmost surface of the formed antireflection coating is from about 10 nm to about 1 micron. In some embodiments, conformally depositing the optically transparent material comprises spin coating the optically transparent material over the nanostructures. In some embodiments, conformally depositing the optically transparent material comprises performing a chemical vapor deposition (CVD) process.
On December 31, 2025, Jinxin Technology Holding Company, a leading digital content service provider in China, introduced the NAMI INSIGHT One.
The new wearable device, which integrates artificial intelligence with lightweight AR technology, is designed specifically for educational purposes. The product was officially launched through the company’s flagship stores via Chinese e-commerce platforms.
From the website we learn that the company focuses on AI-Powered Education: Making Learning More Efficient and Engaging.
Founded in 2014 by a team of former executives from Huawei and Microsoft, Shanghai Jinxin Network Technology Co., Ltd., has been dedicating to building a powerful digital education content production engine using advanced AI/AR/digital human technologies for the past 10 years.
Through its brand Nanobox and partners, it provides users educational content products and services.
Currently, it has become a leading provider in China.
Based on its experience in digital textbooks and insights into the education of primary and secondary school students in China, Jinxin Technology has built a new ecosystem of intelligent education content and services, including immersive learning experiences, stimulating learning interest, and aiming to improve learning efficiency
As the extended reality (XR) landscape evolves, two standout projects Project Aura and Project Moohan are shaping the future of wearable technology. Both initiatives, backed by major tech players, aim to redefine user interaction through advanced features and seamless integration. This article delves into their specifications, functionalities, and potential impact. | As the extended reality (XR) landscape evolves, two standout projects Project Aura and Project Moohan are shaping the future of wearable technology. Both initiatives, backed by major tech players, aim to redefine user interaction through advanced features and seamless integration. This article delves into their
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
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.
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