Image captured device, optical filter film, and method for manufacturing optical thin film

An image captured device includes an image detector, at least one lens, and an optical filter. The optical filter is optically coupled between the image detector and the lens and has an optical filter film. The optical filter film includes a plurality of first metal oxide layers and a plurality of second metal oxide layers which are alternately stacked. A refractive index of each of the first metal oxide layers is greater than a refractive index of each of the second metal oxide layers. The optical filter film has a thickness in a range from 620 nm to 640 nm. A relationship between light transmittance of the optical filter and wavelength shown in a wavelength spectrum exists a first pass band, a second pass band, and a blocking range. A value corresponding to cut-off wavelength of the first pass band is less than 660 nm. A value corresponding to cut-on wavelength of the second pass band is greater than 830 nm. The blocking range exists within an interval between the cut-off wavelength of the first pass band a