The device comprises:
eyeglass lenses capable of functioning as both sunglasses and glasses; and eyeglass frames having a user touch unit, a
light detection unit, an electrochromic switching unit for switching between the sunglasses function and the glasses function, and a function
control unit that controls the electrochromic switching unit based on input from at least one of the user touch unit and the
light detection unit; wherein the electrochromic switching unit in the function
control unit switches its color based on input from at least one of the user touch unit and the
light detection unit, causing the electrochromic layer located behind the half mirror layer to
change color to a
dark color for a blackout background due to the supply of
electricity self-generated by the
solar cell surface, thereby enabling the half mirror layer to exhibit a sunglasses function in the eyeglass lens, forming a mirror surface on the front surface; and the electrochromic layer is converted to a transparent color in the half mirror layer, enabling the eyeglass lens to exhibit an eyeglass function in which a transparent window is formed on the front surface. Unlike conventional photochromic lenses that can
change color due to
sunlight (
ultraviolet rays), these lenses can be instantly used as either regular glasses or mirrored glasses depending on the user's desired situation, regardless of
sunlight (
ultraviolet rays), and can exhibit effects such as blocking
ultraviolet rays and
scattered light, as well as giving the wearer a sense of beautiful colors to create a stylish look.