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公开(公告)号：EP1657716B1
公开(公告)日：2009-08-05
申请号：EP05253531.7
申请日：2005-06-09
CPC分类号： G11B7/1353 , G11B7/131 , G11B2007/0006
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公开(公告)号：EP1657716A3
公开(公告)日：2007-03-07
申请号：EP05253531.7
申请日：2005-06-09
CPC分类号： G11B7/1353 , G11B7/131 , G11B2007/0006
摘要： A compatible optical pick-up apparatus, which records to and/or reproduce from both digital versatile disc (DVD)-type optical disks and compact disc (CD)-type optical disks for improving a signal regeneration capacity and a tracking capacity in operation at a high temperature. A polarized hologram (43) of the optical pick-up apparatus is divided into six diffraction regions. The rays of a first light (10a) diffracted at the first and second diffraction regions (E, F) are separately received by divided parts of a first bisected light-receiving portion (51b) of a photodetector (50).
摘要翻译： 兼容的光学拾取装置，其从数字通用盘（DVD）类型的光盘和光盘（CD）类型的光盘两者记录和/或再现以提高信号再生能力和在操作中的跟踪能力 高温。 光学拾取装置的偏振全息图（43）被分成六个衍射区域。 在第一和第二衍射区域（E，F）衍射的第一光线（10a）的光线被光电探测器（50）的第一等分光接收部分（51b）的分开部分分开接收。
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公开(公告)号：EP1657716A2
公开(公告)日：2006-05-17
申请号：EP05253531.7
申请日：2005-06-09
CPC分类号： G11B7/1353 , G11B7/131 , G11B2007/0006
摘要： A compatible optical pick-up apparatus, which records to and/or reproduce from both digital versatile disc (DVD)-type optical disks and compact disc (CD)-type optical disks for improving a signal regeneration capacity and a tracking capacity in operation at a high temperature. A polarized hologram (43) of the optical pick-up apparatus is divided into six diffraction regions. The rays of a first light (10a) diffracted at the first and second diffraction regions (E, F) are separately received by divided parts of a first bisected light-receiving portion (51b) of a photodetector (50).
摘要翻译： 一种兼容的光学拾取装置，其从数字通用盘（DVD）型光盘和光盘（CD）型光盘记录和/或再现，用于改善信号再生能力和操作中的跟踪能力 高温。 光学拾取装置的极化全息图（43）被分成六个衍射区域。 在第一和第二衍射区域（E，F）处衍射的第一光（10a）的光线被光电检测器（50）的第一二等分光接收部分（51b）的分开的部分分开接收。
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