An optical film 40 includes a sheet-shaped base material 41; an information pattern including a plurality of marks 42 provided on one surface of the base material 41 and representing information regarding a position thereof on the optical film 40; and a sheet member 43 laminated on the surface of the base material 41 on which the information pattern is provided, so as to fill spaces between the plurality of marks 42. When visible light having a wavelength of 700 nm is transmitted through the information pattern in a thickness direction of the information pattern, a phase difference between light transmitted through each mark 42 and light transmitted through the sheet member 43 between the marks 42 is equal to or less than Π/6.