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61. 发明授权

US5761162A Multi-element prism for optical heads 失效
标题翻译：光学头的多元素棱镜
公开(公告)号：US5761162A
公开(公告)日：1998-06-02
申请号：US742239
申请日：1996-10-31
申请人： Ronald E. Gerber , Timothy S. Gardner , David B. Kay
发明人： Ronald E. Gerber , Timothy S. Gardner , David B. Kay
IPC分类号： G11B7/09 , G11B7/135 , G11B7/085
CPC分类号： G11B7/1359 , G11B7/094 , G11B7/1381
摘要： An apparatus for providing focus and tracking error signals for controlling an application of a radiation beam to a data track of an optical storage medium is disclosed. The present invention describes a multi-element optical prism having at least four separator elements with each separator element engaging at least three other separator elements and at least two separator elements surrounding two inner separator elements and engaging each other at spaced apart positions. This apparatus permits a single return path, a reduced cross talk between focus and tracking error signals, and a reduced track offset.
摘要翻译：公开了一种用于提供用于控制对光存储介质的数据轨道的辐射束的应用的聚焦和跟踪误差信号的装置。本发明描述了具有至少四个隔离元件的多元件光学棱镜，其中每个分离器元件与至少三个其它分离器元件接合，以及至少两个隔离元件围绕两个内部分离器元件并且在间隔开的位置彼此接合。该装置允许单个返回路径，聚焦和跟踪误差信号之间减少的串扰，以及减小的轨道偏移。

62. 发明授权

US5360970A Apparatus and method for a single return path signal sensor system 失效
标题翻译：单回路信号传感器系统的装置和方法
公开(公告)号：US5360970A
公开(公告)日：1994-11-01
申请号：US998107
申请日：1992-12-29
申请人： David B. Kay
发明人： David B. Kay
IPC分类号： G11B7/12 , G11B7/13 , G11B7/135 , G01J1/20
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/131 , G11B7/1378
摘要： The radiation resulting from interaction with a data track or groove on a storage surface of an optical information storage and retrieval system is separated into three components and detected to provide tracking, focussing, and data signals. The separation is performed using a dual diffraction grating in a single optical path. The division between grating elements in the dual diffraction grating is oriented perpendicular to the data track or groove projected on the grating element. Diffraction radiation components generated by the dual diffraction grating are applied to a first and a second dual sensor elements. The first and second dual sensor elements provide a focusing signal. The undiffracted radiation component transmitted by the dual grating is applied to a third dual sensor. The division between sensors of the third dual senor is perpendicular to the division of the dual grating. Signals from the third dual sensor elements provide the tracking signal and the data signal. Several embodiments of the basic configuration are disclosed including a variety of configurations for defocusing the undiffracted transmitted radiation on the third dual sensor. In addition, a cylindrical lens can be used to defocus the radiation components from the diffraction grating in a single dimension.
摘要翻译：与光信息存储和检索系统的存储表面上的数据轨道或凹槽的相互作用产生的辐射被分为三个部分并被检测以提供跟踪，聚焦和数据信号。在单个光路中使用双衍射光栅进行分离。双衍射光栅中的光栅元件之间的划分垂直于投影在光栅元件上的数据轨迹或凹槽。由双衍射光栅产生的衍射辐射分量被施加到第一和第二双传感器元件。第一和第二双传感器元件提供聚焦信号。由双光栅传输的未衍射的辐射分量被施加到第三双传感器。第三双传感器的传感器之间的分割垂直于双光栅的分割。来自第三双传感器元件的信号提供跟踪信号和数据信号。公开了基本配置的几个实施例，其包括用于在第三双传感器上散焦未衍射的透射辐射的各种配置。此外，可以使用柱面透镜在单个维度上将来自衍射光栅的辐射分量散焦。

63. 发明授权

US4405207A Method of assembling a gradient index lens array having reduction properties 失效
标题翻译：组装具有还原特性的梯度折射率透镜阵列的方法
公开(公告)号：US4405207A
公开(公告)日：1983-09-20
申请号：US224348
申请日：1981-01-12
申请人： David B. Kay
发明人： David B. Kay
IPC分类号： C03B37/00 , G02B3/00 , G02B6/04 , G02B6/08 , G03B27/50 , G02B5/16
CPC分类号： G02B3/0056 , G02B6/08 , G02B6/3636 , G02B6/3652 , G02B6/3676 , G02B6/368 , G02B6/3696
摘要： A method of assembling a plurality of gradient index fibers into a lens array capable of transmitting a reduced or enlarged image is provided. The fibers, in either one or multiple row configuration, are placed between outer binding members. The fibers are aligned in the required fan-like configuration by being seated in grooves formed in the interface surface of one or both of the binding members. The fibers and members are bonded together into a lens array by one of a number of described bonding techniques.
摘要翻译：提供了一种将多个梯度折射率纤维组装成能够发送缩小或放大图像的透镜阵列的方法。以一列或多列构造的纤维被放置在外绑定构件之间。纤维通过坐在形成在一个或两个结合构件的界面表面中的凹槽中而以所需的扇形结构对准。纤维和构件通过多种描述的粘合技术之一粘合在一起成为透镜阵列。

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