Planar photonics with binary grating draws immense attention because of characteristics that allow for controlling the flow of light beyond that offered by natural material. Binary gratings are gratings of various widths in the 2880 nm period. The grating’s resonance wavelength is tunable by changing the thickness of the binary grating. This also allows for an optimized efficiency of diffraction. In addition, normal incidence with the transmission-type binary grating is discussed. Based on the anomalous refraction results, it is possible to realize binary grating devices with optimized dimensions in the visible to near-infrared (NIR) wavelength region.