Patent ID: 7466493
Filing Date: 2008-12-16
Classification: G02B

Abstract:
1. A liquid lens comprising: a cylindrical body having a pair of glass lenses which are coupled to upper and lower openings of the body, respectively; an aspheric transmitting partition lens inserted and fixed in the central portion of the body; an auto-focus lens section composed of a first insulating liquid layer and a first electrolyte layer which are filled under the transmitting partition lens so as to form an interface therebetween; an optical zoom lens section composed of a second insulating liquid layer and a second electrolyte layer which are filled above the transmitting partition lens so as to form an interface therebetween; and a minute auto-focus lens section composed of a third insulating liquid layer of which the upper surface comes in contact with the lower surface of the transmitting partition lens and of which the lower surface forms an interface with the first electrolyte layer such that the third insulating liquid layer is not mixed with the first electrolyte layer.