Disclosed herein are an electrostatic-type variable diffractive light
modulator, which includes lower micromirrors that are provided on a glass
substrate to be spaced apart from each other, and actuates upper
micromirrors that are spaced apart from the substrate by an electrostatic
actuating method, thus allowing the upper and lower micromirrors to
diffract incident light entering a lower portion of the substrate, and a
method of manufacturing the electrostatic-type variable diffractive light
modulator.