Xiaomi has filed a patent for electrochromic lenses for glasses

A patent license has been granted for "glasses" used by Xiaomi Mobile Software Co., Ltd. to control light transmission using an electrochromic lens.

“The patent is for a type of spectacles, including: a frame, the frame is equipped with a display module, a metallic grating is placed on the front of the frame and an electrochromic lens is placed on the front of the frame. The frame and the cover of the display module, the electrochromic lens is provided with a lens electrode, the lens electrode is to be connected to the metal flexible element.

When the electrochromic lens is adjusted in the spectacles, the electrochromic lens' lens electrode is connected to the frame via a metal grid, and from here the control voltage is applied to the lens and the electrochromic lens can be controlled according to its brightness. The real environment and user preference for controlling the light transmittance of the photochromic lens improves the display effect of the display module and enhances the user experience.”

Xiaomi has also filed another patent for glasses that also controls the light transmission of the lens. "The patent includes a display module; an electrochromic lens covering the front of the display module; an ambient light sensor connected to the electrochromic lens; a sensor control card connected to the ambient light sensor; there is a processor, and the motherboard is connected to the sensor control card."

According to electrochromic by adjusting the lens goggles, the electrochromic lens is connected to the ambient light sensor, and the transmittance of the electrochromic lens can be controlled via the processor to adjust the voltage according to the brightness of the real environment and the user's preferences.

Electrochromic lens

Electrochromic lenses are special lenses that can automatically adapt to ambient light conditions. This means that the colour of the lens will be darker in bright light, such as sunlight, and brighter in low light. Electrochromic lenses have built-in electrical circuits that allow the transparency of the lens to be controlled. This allows the lenses to adapt to the light conditions, making them more comfortable and practical for the wearer, as there is no need for separate sunglasses or constant lens changes. Electrochromic lenses are widely used in eyewear, workwear and other optical devices for improved visual safety and comfort.