发明名称 Optical disk memory apparatus.
摘要 <p>An optical disk memory apparatus comprising, at least, a disk rotating mechanism (240) which drives and rotates an optical disk (140) set in the memory, an optical head (210) which projects a light beam on the optical disk and which detects reflected light from the optical disk, and head displacement means (300) including an actuator (310) for displacing the optical head. The disk rotating mechanism (240), the optical head (210) and the head displacement means (310) are arranged along a common plane. In addition, the actuator (310) is arranged at the rear of the optical head (210) with respect to a rotating shaft (241) of the disk rotating mechanism (240). Since the disk rotating mechanism (240), the optical head (210) and the head displacement means (310) are arranged in this order, the memory apparatus can be made structurally thinner. Further, it can be implemented in a card type structure. &lt;IMAGE&gt;</p>
申请公布号 EP0497291(A2) 申请公布日期 1992.08.05
申请号 EP19920101388 申请日期 1992.01.28
申请人 HITACHI, LTD. 发明人 TSUBOI, NOBUYOSHI;SATO, YOSHIO;MINEMURA, HIROYUKI;SUGITA, TATSUYA;FUSHIMI, TETSUYA;NIHEI, HIDEKI;YASUKAWA, SABURO;SHIBANUMA, HIDEO;SAGAWA, AKIO;TAJIMA, FUMIO
分类号 G11B7/085;G11B7/09;G11B7/135;G11B19/20;G11B23/03 主分类号 G11B7/085
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