An Israeli startup is making glasses with lenses that can automatically adjust their optical power in real time, which may be a boon to people with age-related trouble focusing on nearby objects and could also be helpful for making virtual reality less nauseating.
Called Deep Optics, the startup has spent the last three years building lenses with a see-through liquid-crystal layer that can change its refractive index—that is, the way light bends while passing through it—when subjected to an electrical current that depends on sensor data about where a wearer’s eyes are trying to focus. This month it announced it had brought in $4 million in venture capital to help make this happen; investors include Essilor, a French company that makes eyeglass lenses.
Image: A prototype of Deep Optics’s self-adjusting lens is shown surrounded by a printed circuit board (left), while another lens is packed in a plastic handle that has an adapter to connect it to a computer (right). - https://www.technologyreview.com
