Bin Wang, Mao Ye, Susumu Sato
Abstract
A variable-focus lens is made with one or two liquid-crystal layers and a glass lens. The lens has an aperture near that of the glass lens, and its focal length is electrically changeable from that of the glass lens. The principle is described, and the lens is demonstrated experimentally.
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A variable-focus lens is made with one or two liquid-crystal layers and a glass lens. The lens has an aperture near that of the glass lens, and its focal length is electrically changeable from that of the glass lens. The principle is described, and the lens is demonstrated experimentally.
Key concepts: Lens (geology), Optics, Focal length, Materials science, Liquid crystal, Simple lens, Aperture (computer memory), Optoelectronics