基本信息:
- 专利标题： RECORDING APPARATUS AND SERVO CONTROL METHOD
- 专利标题（中）：记录装置和伺服控制方法
- 申请号：US13461423 申请日：2012-05-01
- 公开(公告)号：US20120294128A1 公开(公告)日：2012-11-22
- 发明人： Kenji Yamamoto , Takashi Nakao
- 申请人： Kenji Yamamoto , Takashi Nakao
- 申请人地址： JP Tokyo
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2011-112011 20110519
- 主分类号： G11B7/12
- IPC分类号： G11B7/12 ; G11B7/1374
摘要：
A recording apparatus includes the following elements. A recording light source emits pulse laser light for recording. A first light source emits first CW laser light. An irradiation optical system irradiates an optical recording medium with the pulse laser light and the first CW laser light via an objective lens in the state in which the optical axis of the first CW laser light is tilted with respect to the optical axis of the pulse laser light. A reception optical system outputs, to a first light receiver, a returned light portion of the first CW laser light which has been reflected by a reflection surface formed on the optical recording medium and which has been input through the objective lens. A focus servo controller performs focus servo control for the objective lens on the basis of a first reception signal obtained by the first light receiver.
摘要（中）：
记录装置包括以下元件。 记录光源发射用于记录的脉冲激光。 第一光源发射第一CW激光。 照射光学系统在第一CW激光的光轴相对于脉冲激光的光轴倾斜的状态下经由物镜照射具有脉冲激光和第一CW激光的光记录介质 光。 接收光学系统向第一光接收器输出由被形成在光记录介质上并被输入通过物镜的反射面反射的第一CW激光的返回光部分。 聚焦伺服控制器基于由第一光接收器获得的第一接收信号，对物镜进行聚焦伺服控制。
公开/授权文献:
- US08520485B2 Recording apparatus and servo control method 公开/授权日：2013-08-27
IPC结构图谱:
| G | 物理 |
| --G11 | 信息存储 |
| ----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
| ------G11B7/00 | 用光学方法，例如，用光辐射的热射束记录用低功率光束重现的；为此所用的记录载体 |
| --------G11B7/12 | .换能头 |