OPTICAL SIMULATOR CONTROLLED BY ELECTROWETTING-ON-DIELECTRIC

摘要

The present invention relates to an optical stimulator as a device for stimulating a specific nerve cell in a body to obtain a nerve signal, comprising: a main body unit including an electrode and a plurality of electrical terminals connected to the electrode; an optical fiber substrate extended from one side of the main body unit and allowing a plurality of conductive water drops for driving electrowetting to be disposed to be spaced apart from one another at a predetermined distance; and a light source unit disposed on the main body unit and generating light in a direction in which the conductive water drops formed on the optical fiber substrate are disposed. Each of the electrical terminals is connected to each of the conductive water drops. When an electrical field is applied by the electrical terminals, the conductive water drops allows light to be transmitted therethrough, and when an electrical field is not applied, the conductive water drops reflect moving light to upper portions of the conductive water drops to stimulate a specific nerve cell. Thus, a nerve cell at a single stimulation point can be stimulated, and since nerve cells at several points can be stimulated in a depth direction, a nerve signal can be more precisely measured and analyzed.