| abstract |
(57) [Problem] To make it possible to freely design the focal plane of a microlens array by making the focal length of each lens of the microlens array different. SOLUTION: An ultraviolet-curable resin is supplied onto a base glass substrate 2, a microlens array 4 is formed by embossing with a stamper, and the ultraviolet-curable resin is cured by irradiation with ultraviolet light to form a lens resin layer 6. I do. Lens resin layer 6 UV curable resins having different refractive indices are supplied on the substrate, pressed by the cover glass substrate 3, and cured by UV irradiation to form the lens resin layer 8. A lens pattern in which the curvature of each lens is individually changed is formed on the surface of the stamper, and the inverted pattern is transferred to the microlens array 4 to change the curvature of each lens and change the focal length to an arbitrary value. Fit to face. |