| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify an optical system and to improve reproducing performance. <P>SOLUTION: In a hologram reproducing apparatus reproducing hologram as interference fringes formed by making a coherent reference beam for recording and a coherent data beam corresponding to image data to be recorded and passing through a fourier transform lens incident on a medium for recording hologram based on diffracted light obtained by making the coherent reference beam for reproduction incident on the medium for recording hologram, the apparatus has a first optical system which is arranged at one plane side of the medium and in which an optical path of the reference beam for reproduction is formed in the same optical path as the reference beam for recording, and a second optical system which is arranged on the optical path of the data beam at another plane side of the medium for recording hologram being opposite to the plane of the one side, which receives diffracted light obtained by making the reference beam for reproduction incident on a plane side of the medium for recording hologram and which captures the image data, and a control part performing inverse Fourier transform processing for the data captured in the second optical system. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
