5. A method of making a molded product, comprising:
pouring a light curing resin material into a mold;
emitting light to the light curing resin material in a first direction, the light being partly blocked with a mask;
emitting light to the mask in a second direction opposite to the first direction; and
removing an uncured portion of the light curing resin material, the uncured portion remaining uncured based on blockage of the light.