Apparatus for adjusting aperture using microelectrofluidic method

摘要

Provided is an aperture adjusting apparatus for adjusting an aperture through which light transmits. The aperture adjusting apparatus includes: a chamber configured to have space in which fluid flows, the chamber including a lower channel, an upper channel, and a plurality of reservoir regions connecting the lower channel and the upper channel and each having a non-uniform width crossing a flow direction of a fluid to form a space in which fluid flows; a photo-interceptive first fluid and a photo-transmissive second fluid having a property that the photo-transmissive second fluid does not mix with the first fluid and that are prepared in the chamber; and a first electrode unit in which one or more electrodes to which a voltage is applied are arrayed to form an electric field in the chamber, wherein an aperture through which light transmits is adjusted by a location change of an interface between the first fluid and the second fluid according to the electric field.

主权项

1. An aperture adjusting apparatus comprising:
a chamber comprising a lower channel, an upper channel, and a plurality of reservoir regions connecting the lower channel and the upper channel, each of the plurality of reservoir regions having a non-uniform width; a first fluid that is photo-interceptive and contained in the chamber; a second fluid that is photo-transmissive and contained in the chamber, the second fluid having a property that the second fluid does not mix with the first fluid; and a first electrode unit comprising at least one electrode configured to, in response an applied voltage, form an electric field in the chamber to adjust an aperture through which light transmits by a location change of an interface between the first fluid and the second fluid according to the electric field.