Patent ID: 9726879
Date: 2017-08-08
CPC Classifications: G02B,G03B,H04N

Claim:
1. A variable liquid device comprising: a chamber comprising a channel structure, in which a fluid flows and which has a variable height in a first channel of the channel structure; a first fluid which is filled in the first channel having the variable height and comprises a non-transmissive material, the variable height continuously increasing from or decreasing toward a center axis of the variable liquid device; and a second fluid which is filled in the channel structure and comprises a light transmissive material that does not mix with the first fluid, wherein an aperture, through which light is transmitted, is adjusted according to a variation of an interface between the first fluid and the second fluid, wherein the chamber comprises: a first substrate having a curved surface, and a second substrate having a planar surface disposed facing the curved surface of the first substrate, to form the first channel having the variable height between the curved surface of the first substrate and the planar surface of the second substrate.