Patent ID: 8309000

Claim:
A method for manufacturing microlenses comprising: forming a plurality of microlenses by pressing a microlens mold having a reverse shape of the microlenses formed therein on a microlens-forming film formed on a substrate to transfer the reverse shape of the microlenses to the microlens-forming film, wherein the microlens mold is formed by irradiating an inorganic resist film which is formed on a mold substrate with exposure light by relative two-dimensional scanning, an intensity profile of the exposure light at each irradiation position is determined by controlling an angle of a galvano mirror that is positioned in an optical path of the exposure light based on the irradiation position, and by controlling an irradiation intensity of the exposure light based on the irradiation position, and forming each reverse shape of the microlens by etching an exposed region of the inorganic resist film to form the reverse shape of the respective microlens, and wherein the irradiation intensity of the exposure light and the angle of the galvano mirror are changed at least once to correspond to the depths of different reverse shapes of the microlenses from the surface of the inorganic resist film on the basis of profile data of the reverse shapes of the microlenses.