| 摘要 |
An electronic device that performs at least reading or regeneration of data in or from a hologram disc is characterized by including an objective lens 11 disposed opposite a hologram disc (MH) 1; a laser light source 5 that emits a beam toward the objective lens 11; and a light receiving element 17 that receives a beam reflected from the hologram disc (MH) 1 by way of the objective lens 11, wherein a corner cube array 8 that reflects a portion of a beam traveling from the laser light source 5 toward the objective lens 11 is interposed between the laser light source 5 and the objective lens 11.
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