This experiment kit is designed to combine experiments with corresponding theories. By observing experimental phenomena in optics, students can get a better understanding of related theories in spatial frequency spectrum, optical Fourier transform, and holography. This experiment kit also helps students enhance their experimental skills. Using this kit, the following experiment examples can be conducted: 1.Holographic photography 2.Holographic grating fabrication 3.Abbe imaging and spatial light filtering 4.Theta modulation