| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic device for surely reading reproduced light and improving reading accuracy. <P>SOLUTION: The electronic device for performing at least one of recording and reproducing a hologram disk includes: an objective lens 11 disposed oppositely to the hologram disk (MH) 1; a laser light source 5 for emitting light to the objective lens 11; and a light receiving element 17 for receiving reflected light from the hologram disk (MH) 1 via the objective lens 11. A corner cube array 8 for reflecting a part of the light emitted from the laser light source 5 to the objective lens 11 is disposed between the laser light source 5 and the objective lens 11. <P>COPYRIGHT: (C)2011,JPO&INPIT |
