VARIABLE FOCUS LENS AND LENS ARRAY BASED ON POLYMERS AND METHOD FOR ADJUSTING LENS FOCAL LENGTH

摘要

The present invention relates to a variable lens whose focal length is changed by morphological deformation of a polymer, and more specifically, to a variable lens having an electrode part 100 provided in a form of a circular, elliptical, or polygonal electrode with an inner opening. A transparent electrode layer 200 provided at a predetermined distance from the lower end of the electrode unit 100; An electric activation part 300 formed of a transparent gel-like polymer and provided between the electrode part 100 and the transparent electrode layer 200; And a voltage supplier 400 connected to the electrode unit 100 and the transparent electrode layer 200 to form an electric field in the electrode unit 100 when a voltage is applied. According to the polymer-based variable lens and the method for adjusting the focal length of the lens proposed in the present invention, an electrode portion formed of a circular, elliptical, or polygonal electrode having an inner opening, a transparent electrode layer provided at a predetermined distance from the lower end of the electrode portion, And a voltage supply unit for forming an electric field in the electrode unit. The electrode is formed by deforming the shape of the transparent gel-like polymer provided in the through hole of the electrode, , It is possible to adjust the focal distance change only by the change in the intensity of the applied voltage. In addition, according to the present invention, since the shape of the transparent gel-like polymer provided inside the hole of the electrode is deformed by external pressure or electron movement (voltage application), not only the focal distance of the convex lens can be controlled, Is also adjustable. In addition, according to the present invention, since the lens protective film is further provided on the transparent gel-like polymer provided in the through hole of the electrode, it is possible to prevent the gel from being damaged by foreign matter or external contact.