Patent ID: 8238033

Claim:
A manufacturing method for a liquid lens device comprising: preparing a body having a liquid chamber, a conductive first liquid stored in said liquid chamber, an insulating second liquid stored in said liquid chamber, an electrode kept in contact with said first liquid, and a liquid discharge passage for making the communication between the inside and the outside of said liquid chamber, said liquid chamber being defined by a first transparent substrate on which an electrode layer is formed, a second transparent substrate opposed to said first transparent substrate, and an annular sealing member interposed between said first transparent substrate and said second transparent substrate, said first liquid and said second liquid having different refractive indices and being immiscible with each other; applying pressure to said first and second transparent substrates to thereby compress said sealing member and discharge said first liquid through said liquid discharge passage to the outside of said liquid chamber; and closing said liquid discharge passage; and wherein preparing said body includes mounting a hollow liquid discharge pin for opening said liquid discharge passage between said first transparent substrate and said sealing member; and closing said liquid discharge passage includes removing said liquid discharge pin from said body to elastically restore said sealing member.