Patent ID: 8885258

Claim:
A stack-type lens array comprising: at least two lens sheets which are stacked and bonded to each other and each of which includes micro lenses arranged on a flat plate at predetermined intervals, wherein one of the two lens sheets includes at least one of an antireflection layer that is formed so as to include a lens surface of the micro lens and a light shielding layer that is formed so as to have a diaphragm aperture at the center of the lens surface of the micro lens, and an adhesive layer that is patterned on an exposed surface of the lens sheet which is provided on an outer circumferential side of the antireflection layer and the light shielding layer, on an inner surface thereof which faces the inner surface of the other lens sheet when the two lens sheets are stacked, and a portion to which the adhesive layer is bonded in the inner surface of the other lens sheet which faces the inner surface of the one lens sheet when the two lens sheets are stacked is the exposed surface of the lens sheet.