Microlens array, manufacturing method thereof and optical instrument

摘要

A manufacturing method of a microlens array includes the step of forming second light transmitting layers 36 on a first light transmitting layer 26. The first light transmitting layer 26 has a plurality of recessed parts 28 and partitions 32 for delimiting the recessed parts 28, wherein at least a portion of the inner surface of each recessed part 28 is a lens surface 30. The second light transmitting layers 36 are formed in the respective recessed parts 28 in such a manner that the second light transmitting layers 36 avoid the partitions 32 of the first light transmitting layer 26. The second light transmitting layers 36 are formed in such a manner that the surfaces of the second light transmitting layers 36 form lens surfaces 38 for the respective recessed parts 28.