Patent ID: 8061910

Claim:
A micro shutter with an iris function, comprising: a base plate with a transparent portion which allows light to pass through; a plurality of rollup blades, which blocks the light, arranged in a regular polygon at a circumference of the transparent portion on the base plate to cover the transparent portion, and each of the plurality of rollup blades has a fixing portion fixed to the base plate and a moving portion rolled up toward the fixing portion; and a controller electrically connected with the base plate and the plurality of rollup blades which controls unrolling degrees of the plurality of rollup blades, wherein the transparent portion forms a circular shape corresponding to an image sensor, wherein each of the plurality of rollup blades comprises; an insulating layer which contacts the base plate; and a piezoelectric driving layer formed on the insulating layer, wherein the piezoelectric driving layer comprises a first electrode layer, a piezoelectric layer, and a second electrode layer, and wherein a voltage is applied to the first electrode layer or the second electrode layer so that a piezoelectric driving force is generated in the piezoelectric driving layer, and an electrostatic force is generated between the piezoelectric driving layer and the base plate.