Lensless optical servo system for an optically assisted disk drive
    1.
    发明申请
    Lensless optical servo system for an optically assisted disk drive 有权
    用于光辅助磁盘驱动器的无镜头光学伺服系统

    公开(公告)号:US20050162993A1

    公开(公告)日:2005-07-28

    申请号:US11025682

    申请日:2004-12-28

    IPC分类号: G11B5/596 G11B7/00

    CPC分类号: G11B5/59677

    摘要: A lensless optical servo system (100) has an unfocused light source (102) and patterned photodetectors (104, 106, 108). The unfocused light is reflected by the markings on an LS-120 disk (40) and the reflected light carries the pattern of the markings the considerable distance in its far-field to the photodetectors (104, 106, 108). The convolution of this light pattern and a mating geometric pattern (110, 112, 114) on the photodetectors (104, 106, 108) causes the photodetectors to generate signals representing the position of the track on the disk. According to a presently preferred embodiment, a laser diode (102) and three detectors (104, 106, 108) are formed on the same silicon substrate (101). Sinusoidal metalization (110, 112, 114) is applied to the detectors (104, 106, 108) in the radial direction. The period of the sinusoidal metalization is two times the tracking pitch of the disk radially and tangentially. The metalization on the first detector is approximately ninety degrees behind the metalization on the second detector and the metalization on the third detector is approximately ninety degrees ahead of the metalization on the second detector. Preferably, each detector (104, 106, 108) is provided with two sinusoidal patterns (110a, 110b, 112a, 112b, 114a, 114b), approximately one hundred eighty degrees out of phase with each other, and spaced apart in the tangential direction.

    摘要翻译: 无镜头光学伺服系统(100)具有未聚焦光源(102)和图案化光电检测器(104,106,108)。 未聚焦的光被LS-120盘(40)上的标记反射,并且反射光将其远场中的相当距离的标记的图案携带到光电检测器(104,106,108)。 这种光图案和在光电检测器(104,106,108)上的匹配几何图案(110,112,114)的卷积导致光电检测器产生表示盘上磁道位置的信号。 根据目前优选的实施例,激光二极管(102)和三个检测器(104,106,108)形成在同一硅衬底(101)上。 在径向上将正弦金属化(110,112,114)施加到检测器(104,106,108)。 正弦金属化的周期是径向和切向的盘的跟踪间距的两倍。 第一检测器上的金属化在第二检测器上的金属化之后大约九十度,并且第三检测器上的金属化比第二检测器上的金属化大约九十度。 优选地,每个检测器(104,106,108)被提供有彼此相差近似180度的两个正弦图案(110a,110b,112a,112b,114a,114b),以及 沿切线方向间隔开。

    Process for the production of a waveguide beam converter
    2.
    发明授权
    Process for the production of a waveguide beam converter 失效
    制造波导束转换器的方法

    公开(公告)号:US06240232B1

    公开(公告)日:2001-05-29

    申请号:US09155632

    申请日:1998-09-29

    IPC分类号: G02B610

    摘要: Process for the production of a waveguide beam converter for shaping a laser beam collection. A plurality of waveguides are produced and arranged in such a way that at least one individual laser beam can be injected into each waveguide. The waveguides are firstly produced on a substrate using planar technology, and subsequently detached from the substrate over a part of their length, starting from their beam exit ends. The free ends are then arranged and fixed in accordance with an intended output beam arrangement of the output laser beam collection.

    摘要翻译: 用于制造用于成形激光束收集的波导束转换器的方法。 制造并布置多个波导,使得至少一个单独的激光束可以被注入到每个波导中。 首先使用平面技术在衬底上制造波导,然后从它们的光束出射端开始,在其长度的一部分上从衬底上分离波导。 然后根据输出激光束收集的预期输出光束布置来布置和固定自由端。

    Optoelectronic module for bidirectional optical data transmission
    3.
    发明授权
    Optoelectronic module for bidirectional optical data transmission 失效
    用于双向光数据传输的光电模块

    公开(公告)号:US6021238A

    公开(公告)日:2000-02-01

    申请号:US941371

    申请日:1997-09-30

    申请人: Werner Spaeth

    发明人: Werner Spaeth

    摘要: An optoelectronic module for bidirectional optical data transmission includes a molded part acting as a beam-splitter device, formed substantially of a material transparent to emitted radiation and received radiation and having a beam-splitter layer embedded therein. A transmit component, a receive component and a radiation-focusing device are directly connected to the molded part and are provided with a sealing jacket.

    摘要翻译: 用于双向光学数据传输的光电子模块包括用作分束器装置的模制部件,其基本上由对发射的辐射和接收的辐射透明的材料形成并且具有嵌入其中的分束器层。 发射部件,接收部件和辐射聚焦装置直接连接到模制部件并且设置有密封护套。

    Radiation emitter component
    4.
    发明授权
    Radiation emitter component 失效
    辐射发射器组件

    公开(公告)号:US5999552A

    公开(公告)日:1999-12-07

    申请号:US9606

    申请日:1998-01-20

    摘要: A radiation emitter component, in particular an infrared emitter component with a conventional light-emitting diode housing, includes two electrode connections, one of which has a well-shaped reflector. The housing has an optically transparent, electrically non-conducting encapsulation material. A semiconductor laser chip is fastened in a well-shaped reflector of the light-emitting diode housing. The semiconductor laser chip has a quantum well structure, in particular with a strained layer structure, for example MOVPE epitaxial layers with a layer sequence GaAlAs-InGaAs-GaAlAs. A diffusor material can be inserted into the optically transparent, electrically non-conducting material of the light-emitting diode housing. The diffusor material is constructed or inserted with regard to type and concentration in such a way that in connection with the semiconductor laser chip encapsulated in the light-emitting diode housing, a radiation characteristic curve or an increase of an effective emission surface is produced that is comparable to that of a conventional infrared light-emitting diode.

    摘要翻译: 辐射发射器部件,特别是具有传统发光二极管外壳的红外发射器部件包括两个电极连接件,其中之一具有良好形状的反射器。 壳体具有光学透明的非导电封装材料。 将半导体激光芯片紧固在发光二极管壳体的形状好的反射器中。 半导体激光芯片具有量子阱结构,特别是具有应变层结构,例如具有层序列GaAlAs-InGaAs-GaAlAs的MOVPE外延层。 漫射材料可以插入到发光二极管外壳的光学透明的非导电材料中。 关于类型和浓度来构造或插入扩散材料,使得与封装在发光二极管外壳中的半导体激光器芯片有关,产生辐射特性曲线或有效发射表面的增加,即, 与传统的红外发光二极管相当。

    Device for positioning and fastening a lightwave guide to a base
    5.
    发明授权
    Device for positioning and fastening a lightwave guide to a base 失效
    用于将光波导管定位和固定到基座的装置

    公开(公告)号:US4888081A

    公开(公告)日:1989-12-19

    申请号:US126067

    申请日:1987-11-27

    IPC分类号: G02B6/00 G02B6/42

    摘要: A method and arrangement for the positioning and bonding of a solid body (2), in which one part of the solid body (2) together with the bonding agent (6) is to be attached to a further element (7) and bonded to a base (4) is to be capable of positioning the solid body (2), at the point attained after positioning, with both high precision and high long term stability. The solid body (2) is immersed in the bonding agent (6) and this bonding agent is in turn located in a groove of a further electrically conducting body (7). The further body (7) is heated by current flow to a temperature at which the solid body (2) is movable within the bonding agent. Upon attaining the desired positioning of the solid body (2), the bonding agent is allowed to cool through controlled reduction of the heating current until solidification occurs.

    摘要翻译: 固体(2)的定位和结合的方法和装置,其中固体(2)与粘合剂(6)一起的一部分将附着到另一元件(7)上,并粘合到 基座(4)能够将定位后的固体(2)定位在高精度和高长期稳定性的位置。 将固体(2)浸渍在粘合剂(6)中,并且该粘合剂又位于另一个导电体(7)的凹槽中。 另外的主体(7)通过电流流动被加热到固体(2)可以在粘合剂内移动的温度。 在获得固体(2)的所需定位后,通过控制的加热电流的降低使粘合剂冷却,直到发生凝固。

    Transmission and reception module for bi-directional optical message and
signal transmission
    8.
    发明授权
    Transmission and reception module for bi-directional optical message and signal transmission 失效
    用于双向光信息和信号传输的传输和接收模块

    公开(公告)号:US5127075A

    公开(公告)日:1992-06-30

    申请号:US721399

    申请日:1991-06-26

    IPC分类号: G02B6/42

    CPC分类号: G02B6/4246

    摘要: Within a common housing are mounted an autonomous light transmitter having its own transmitter optical coupling element, an autonomous light receiver, a part for connecting a common optical fiber to the common housing, and a beam splitter arranged in the beam path within the common housing. The autonomous light transmitter and the autonomous light receiver are each within their own hermetically sealed encapsulations and it is these hermetically sealed autonomous components which are mounted within the common housing.

    摘要翻译: 在公共壳体内安装有自己的发射器光耦合元件,自主光接收器,用于将共用光纤连接到公共壳体的部件以及布置在公共壳体内的光束路径中的分束器的自发光发射器。 自主光发射机和自主光接收机各自在其自己的密封封装内,并且这些密封的自动部件被安装在公共壳体内。

    Method for positioning and bonding a solid body to a support base
    9.
    发明授权
    Method for positioning and bonding a solid body to a support base 失效
    将固体物体定位并固定在支撑基座上的方法

    公开(公告)号:US4741796A

    公开(公告)日:1988-05-03

    申请号:US855275

    申请日:1986-04-24

    摘要: A method and arrangement for the positioning and bonding of a solid body (2), in which one part of the solid body (2) together with the bonding agent (6) is to be attached to a further element (7) and bonded to a base (4) is to be capable of positioning the solid body (2), at the point attained from positioning, with both high precision and high long term stability. The solid body (2) is immersed in the bonding agent (6) and this bonding agent is in turn located in a groove of a further electrically conducting body (7). The further body (7) is heated by current flow to a temperature at which the solid body (2) is movable within the bonding agent. Upon attaining the desired positioning of the solid body (2), the bonding agent is allowed to cool through controlled reduction of the heating current until solidification occurs.

    摘要翻译: 固体(2)的定位和结合的方法和装置,其中固体(2)与粘合剂(6)一起的一部分将附着到另一元件(7)上,并粘合到 基座(4)能够在从定位获得的位置上以高精度和高长期稳定性定位固体(2)。 将固体(2)浸渍在粘合剂(6)中,并且该粘合剂又位于另一个导电体(7)的凹槽中。 另外的主体(7)通过电流流动被加热到固体(2)可以在粘合剂内移动的温度。 在获得固体(2)的所需定位后,通过控制的加热电流的降低使粘合剂冷却,直到发生凝固。

    Screening electrodes for optical semiconductor components
    10.
    发明授权
    Screening electrodes for optical semiconductor components 失效
    光学半导体元件的屏蔽电极

    公开(公告)号:US4240087A

    公开(公告)日:1980-12-16

    申请号:US956906

    申请日:1978-11-02

    CPC分类号: H01L33/42

    摘要: An optoelectronic coupler with a semiconductor transmitter and a semiconductor receiver has a transparent conductive screen formed of semiconductor material overlying the active area of at least one of the transmitter and receiver, in the path of optical radiation passing between the transmitter and receiver, and directly electrically connected to a semiconductor zone of the active area, to protect the coupler from changes in its electrical characteristics due to high intensity electric fields.

    摘要翻译: 具有半导体发射器和半导体接收器的光电耦合器具有由半导体材料形成的透明导电屏蔽层,覆盖发射器和接收器中的至少一个的有源区域,在发射器和接收器之间的光辐射路径中, 连接到有源区域的半导体区域,以保护耦合器免受由于高强度电场引起的电特性的变化。