专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06646975B1 Semiconductor laser array and its manufacturing method, optical integrated unit and optical pickup 失效
标题翻译：半导体激光阵列及其制造方法，光学集成单元和光学拾取器
公开(公告)号：US06646975B1
公开(公告)日：2003-11-11
申请号：US09340349
申请日：1999-06-25
申请人： Ichiro Uchizaki , Kazushige Mori , Hideo Shiozawa
发明人： Ichiro Uchizaki , Kazushige Mori , Hideo Shiozawa
IPC分类号： G11B7125
CPC分类号： G11B7/131 , B82Y20/00 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B2007/0006 , H01L2224/16145 , H01S5/02216 , H01S5/0224 , H01S5/02292 , H01S5/0683 , H01S5/2205 , H01S5/222 , H01S5/2231 , H01S5/34313 , H01S5/34326 , H01S5/4031 , H01S5/4043 , H01S5/4087 , H01S2302/00
摘要： A semiconductor laser array including a plurality of index-guided semiconductor lasers different in oscillation wavelength is made by collectively controlling their double transverse modes and collectively processing them to form their current-blocking structures and buried layers. Thus, a semiconductor laser having a flat element surface and excellent in heat radiation can be made in a reduced number of manufacturing steps. When the laser array of this multi-wavelength type and a detector PD are mounted with a predetermined positional relationship, return light from an optical disk can be converted into a single point to enable detection thereof at PD on one chip. Therefore, an optical disk driving apparatus remarkably reduced in size and weight and having a high reliability can be realized.
摘要翻译：通过集体控制它们的双横模并共同处理它们以形成其阻流结构和掩埋层，制成包括多个不同振荡波长的折射率半导体激光器的半导体激光器阵列。因此，可以减少数量的制造步骤，制造具有平坦元件表面和散热性优异的半导体激光器。当以这种多波长类型的激光器阵列和检测器PD以预定的位置关系安装时，来自光盘的返回光可以转换成单个点，以使其能够在一个芯片上在PD处进行检测。因此，可以实现显着地减小尺寸和重量并且具有高可靠性的光盘驱动装置。

2. 发明授权

US06496469B1 Integrated unit, optical pickup, and optical recording medium drive device 失效
标题翻译：集成单元，光学拾取器和光学记录介质驱动装置
公开(公告)号：US06496469B1
公开(公告)日：2002-12-17
申请号：US09670858
申请日：2000-09-26
申请人： Ichiro Uchizaki
发明人： Ichiro Uchizaki
IPC分类号： G11B700
CPC分类号： G11B7/127 , G11B7/123 , G11B2007/0006 , H01L2224/16 , H01S5/02216 , H01S5/0224 , H01S5/02252 , H01S5/02292
摘要： The medium of a disk for CD-R is a pigmentation material so readout by a 650-nm laser diode (LD) is not possible. Since CD-R is becoming popular in the marketplace, there are demands for a DVD readout device that is capable of reading CD-R format disks. An integrated semiconductor laser element is created by forming a two-wavelength LD monolithically on a GaAs substrate, and that laser element emits a laser beam that is reflected by a 45° mirror incorporated in a flat package. If a three-part holographic element is used, and the light-receiving element and an amplification circuit are integrated on a silicon substrate, it is possible to implement a small, light-weight optical pickup with fewer components.
摘要翻译：用于CD-R的盘的介质是色素材料，因此由650nm激光二极管（LD）读出是不可能的。由于CD-R在市场上变得流行，所以需要能够读取CD-R格式盘的DVD读出装置。通过在GaAs衬底上单片形成双波长LD而产生集成半导体激光器元件，激光元件发射被并入平面封装中的45°反射镜的激光束。如果三部分全息元件是并且光接收元件和放大电路集成在硅衬底上，可以实现具有较少元件的小型，重量轻的光学拾取器。

3. 发明授权

US06728193B1 Optical pickup device and optical disc driving device 失效
标题翻译：光拾取装置和光盘驱动装置
公开(公告)号：US06728193B1
公开(公告)日：2004-04-27
申请号：US09553932
申请日：2000-04-21
申请人： Ichiro Uchizaki , Kazuya Tsunoda
发明人： Ichiro Uchizaki , Kazuya Tsunoda
IPC分类号： G11B700
CPC分类号： G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1378 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup device includes a double-source built-in semiconductor laser for emitting light of a first wavelength and light of a second wavelength, a first divergence modifying device for modifying the diverging rate of emitted light from the double-source built-in semiconductor laser to a first diverging rate, a second divergence modifying device for modifying the diverging rate of a part of transmitted light through the first divergence modifying device to a second diverging rate, and an objective lens which focalizes the light with the first wavelength modified to the first diverging rate by the first divergence modifying device onto a first optical disc, and focalizes the light with the second wavelength modified to the second diverging rate by the first and second divergence modifying devices onto a second optical disc.
摘要翻译：一种光拾取装置，包括用于发射第一波长的光和第二波长的光的双源内置半导体激光器，用于修改来自双源内置半导体的发射光的发散速率的第一发散修改装置激光器以第一发散速率，第二发散修改装置，用于将通过第一发散改变装置的透射光的一部分的发散速率修改为第二发散速率;以及物镜，其将具有修改为第一发散修正装置的第一发散速率到第一光盘上，并且将由第一和第二发散修改装置修改为第二发散速率的第二波长的光聚焦到第二光盘上。

4. 发明授权

US06693871B2 Integrated unit, optical pickup, and optical recording medium drive device 失效
标题翻译：集成单元，光学拾取器和光学记录介质驱动装置
公开(公告)号：US06693871B2
公开(公告)日：2004-02-17
申请号：US10285025
申请日：2002-10-30
申请人： Ichiro Uchizaki
发明人： Ichiro Uchizaki
IPC分类号： G11B700
CPC分类号： G11B7/127 , G11B7/123 , G11B2007/0006 , H01L2224/16 , H01S5/02216 , H01S5/0224 , H01S5/02252 , H01S5/02292
摘要： The medium of a disk for CD-R is a pigmentation material so readout by a 650-nm laser diode (LD) is not possible. Since CD-R is becoming popular in the marketplace, there are demands for a DVD readout device that is capable of reading CD-R format disks. An integrated semiconductor laser element is created by forming a two-wavelength LD monolithically on a GaAs substrate, and that laser element emits a laser beam that is reflected by a 45° mirror incorporated in a flat package. If a three-part holographic element is used, and the light-receiving element and an amplification circuit are integrated on a silicon substrate, it is possible to implement a small, light-weight optical pickup with fewer components.
摘要翻译：用于CD-R的盘的介质是色素材料，因此由650nm激光二极管（LD）读出是不可能的。由于CD-R在市场上变得流行，所以需要能够读取CD-R格式盘的DVD读出装置。通过在GaAs衬底上单片形成双波长LD而产生集成半导体激光器元件，激光元件发射被并入平面封装中的45°反射镜的激光束。如果三部分全息元件是并且光接收元件和放大电路集成在硅衬底上，可以实现具有较少元件的小型，重量轻的光学拾取器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式