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首页> 外文会议>Design and Engineering of Optical Systems II >Realization of an active-tilt-controlled high-numerical-aperture two-lens objective for optical recording
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Realization of an active-tilt-controlled high-numerical-aperture two-lens objective for optical recording

机译：主动倾斜控制的高数值孔径两镜头物镜的光学记录的实现

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摘要

Abstract: This report describes the realization of an actuator for a high-numerical-aperture objective lens, as part of an experimental optical disk player. The player is capable of reading a disk with 10GByte density and is fully compatible with the 120 mm Digital Video Disk Read-Only Disk standard. The objective consists of two lens elements, having one aspherical surface, and a free working distance of 50 $mu@m. A special active-tilt-control (ATC) actuator is required to achieve sufficient tolerance for disk cover layer thickness and tilt between objective and disk. The ATC-actuator, containing the objective, is as small as a standard CD ROM objective, and therefore fits in a standard 2D-actuator for focus and radial tracking. The manufacturing and assembly of the ATC-actuator requires specialized prototyping techniques, such as the use of alignment molds, and assembly in a specialized clean room. We have controlled the free working distance within 1.1 $mu@m and tilt within 0.7 mrad at 3kHz, while being carried in a Philips actuator, operating at 2kHz. The ATC-actuator was developed to investigate new options for future optical storage systems. !5
机译：摘要：该报告描述了作为实验性光盘播放器一部分的高数值孔径物镜致动器的实现。该播放器能够读取密度为10GB的磁盘，并且与120毫米数字视频磁盘只读磁盘标准完全兼容。物镜由两个透镜元件组成，具有一个非球面表面，自由工作距离为50μm。需要一个特殊的主动倾斜控制（ATC）致动器来获得足够的磁盘盖层厚度和物镜与磁盘之间倾斜的公差。包含物镜的ATC执行器与标准CD ROM物镜一样小，因此适合用于聚焦和径向跟踪的​​标准2D执行器。 ATC执行器的制造和组装需要专门的原型技术，例如使用对准模具，以及在专门的洁净室中进行组装。我们将自由工作距离控制在3 kHz时，将自由工作距离控制在1.1μμm之内，将倾斜度控制在0.7 mrad之内，同时将其安装在以2kHz工作的Philips执行器中。 ATC执行器的开发旨在研究未来光学存储系统的新选择。 ！5

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