| 摘要 |
PURPOSE: A method for controlling light transmission and reflection using one optical is provided to control light transmittance in fast speed and control wavelength of a reflective light, thereby being applied to inner/outer interior products and various fields. CONSTITUTION: A minute particle is dispersed in the media of gel state. If external electric field is not applied, an incoming light is scattered by difference of refraction index between the minute particle and the media. Therefore, opaque state appears. If the electric field is applied, the minute particle is gradually arranged to a direction of the electric field by inter-particle interaction between particles. Therefore, the transparent gradually appears. If electric field is applied over predetermined strength, a reflective light of a wavelength range appears. |
