Apple's latest patent reveals smart glasses that will enable personalized vision correction

Apple has recently made important progress in the field of smart glasses. According to the latest announcement from the United States Trademark and Patent Office (USPTO), Apple successfully obtained a patent related to smart glasses. This patent covers an advanced adjustable lens system, which means Apple has taken an important step in developing more advanced and comfortable smart glasses.

The patent describes smart glasses that feature multiple adjustable lenses. These lenses have one or more liquid crystal cells or other types of voltage-modulated optical materials embedded inside them. Each liquid crystal cell consists of a transparent substrate and a layer of liquid crystal material sandwiched between it. By applying specific control signals to the electrode array in the liquid crystal unit via a control circuit, the phase configuration of the liquid crystal material can be precisely adjusted to achieve changes in the optical properties of the lens. This kind of smart glasses can adjust the focal length, astigmatism, anti-blue light and other parameters of the lens in real time according to user needs, providing a more personalized visual experience. At the same time, the glasses can also achieve more functions by connecting to devices such as smartphones, such as displaying notifications, navigation, etc. This patented technological innovation will bring new development opportunities to the eyewear industry.

The key to this innovative technology is that it allows each eye to match different degrees according to actual needs. When users wear such smart glasses or XR devices, they no longer need to rely on traditional prescription lenses. It is understood that this system can track the user's line of sight in real time through a sensor system, and then adjust the optical area of ​​the adjustable lens accordingly to ensure that it remains aligned with the user's gaze point.

The control circuit is responsible for the operation of the optical components, specifically the adjustable lens assembly. Each adjustable lens assembly has an electrode array that applies an electric field to a specific area of ​​a layer of liquid crystal material or a layer of voltage-modulated optical material. By adjusting the signal voltage on the electrode, the refractive index curve of the element can be dynamically changed, thereby adjusting the size, shape and position of the lens.

#Apple emphasizes that this technology is suitable for ordinary glasses and can also be extended to VR/AR devices. Not only can it be used for pure vision correction, but it can also be used as a head-mounted display to display virtual reality or augmented reality content. Smart glasses show huge potential, with adjustable lens components able to move content to provide a more natural and immersive experience.

Apple previously launched a head-mounted display called Vision Pro in the US market. The device is equipped with professional corrective lenses provided by the famous optical company Zeiss. Apple has very strict requirements for Vision Pro lenses, and customers must provide a valid prescription issued by a certified U.S. ophthalmologist. This move highlights Apple’s focus on user visual experience and health in the field of smart glasses. After obtaining this new patent, we have reason to expect that Apple will launch more advanced and innovative smart glasses products in the future.

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