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    • 2. 发明申请
    • OPTICAL PICKUP DEVICE
    • 光学拾取器件
    • US20090116364A1
    • 2009-05-07
    • US12092323
    • 2006-11-16
    • Masatoshi Yajima
    • Masatoshi Yajima
    • G11B7/00
    • G11B7/0037G11B7/1275G11B7/1376G11B7/24038
    • An optical pickup device according to the present invention includes: a first light source that outputs a first laser beam; a second light source that outputs a second laser beam; and an optical system that irradiates an information medium with the first and second laser beams. The information medium includes: an information layer on which user data is written; and a recording layer on which visible information, which is directly visible to a user, is recorded. The optical pickup device is characterized by outputting the first laser beam in writing the user data on the information layer but outputting the second laser beam in recording the visible information on the recording layer.
    • 根据本发明的光拾取装置包括:第一光源,其输出第一激光束; 输出第二激光束的第二光源; 以及照射具有第一和第二激光束的信息介质的光学系统。 信息媒体包括:写入用户数据的信息层; 以及记录用户直接可见的可视信息的记录层。 光学拾取装置的特征在于,在第一激光束上输出用户数据在信息层上,但是在记录层上记录可视信息时输出第二激光束。
    • 5. 发明授权
    • Objective lens actuator
    • 物镜执行器
    • US5892629A
    • 1999-04-06
    • US931359
    • 1997-09-16
    • Yasuo NishiharaMasatoshi Yajima
    • Yasuo NishiharaMasatoshi Yajima
    • G02B7/02G11B7/08G11B7/09G11B7/22G11B21/10H05K3/34
    • G11B7/0932G11B7/0935G11B7/22G11B7/093G11B7/0933H05K1/189H05K2201/09181H05K3/3405
    • To present an objective actuator small in the number of parts, easy in soldering and assembling, heightened in the motion precision and brake effect, free from undesired resonance due to torsional motion of the objective lens holding member, heightened in the secondary resonance frequency by the torsional motion of the objective lens holding member, and suppressed of its amplitude. A lens holding member holding an objective lens and a housing are simultaneously and integrally molded through four linear spring members inserted in a die. Afterwards, a pair of magnets are fixed on the lens holding member, and an electromagnetic coil is wound, and wire terminals are wound in the wire arrangement grooves, then a soldered coil frame is fixed on the housing. A brake member is injected into the recess space enclosing linear spring members with the inside of the side wall of the housing and the inner wall, the brake frame, its partition wall, and part of the coil frame, from the side surfaces. The objective lens is mounted on the middle and top of the lens holding member holding the objective lens, and an optical plate is fixed in the middle of the lower surface, thereby forming a rigid nearly hexahedral structure, in which the suspension center by the linear spring members and the driving center by the driving system of the electromagnetic coil and magnets are matched, and the moment balance of the lens holding member including the objective lens and optical plate is achieved on this driving center.
    • 为了呈现小部件数量少的物体致动器,易于焊接和组装,提高了运动精度和制动效果,不会由于物镜保持构件的扭转运动而产生不希望的共振,而在辅助谐振频率 物镜保持构件的扭转运动,并且抑制其振幅。 保持物镜和壳体的透镜保持构件通过插入模具中的四个线性弹簧构件同时并整体地模制。 然后,将一对磁铁固定在透镜保持部件上,卷绕电磁线圈,将电线端子缠绕在电线布置槽内,将焊接的线圈架固定在壳体上。 制动构件从壳体侧壁的内侧,内壁,制动框架,分隔壁和线圈框架的一部分的侧面注入包围线性弹簧构件的凹部空间。 物镜安装在保持物镜的透镜保持构件的中间和顶部,并且光学板固定在下表面的中间,从而形成刚性的近六面体结构,其中悬浮中心由线性 通过电磁线圈的驱动系统和磁体的弹簧构件和驱动中心相匹配,并且在该驱动中心上实现包括物镜和光学板的透镜保持构件的力矩平衡。
    • 6. 发明授权
    • Optical head with a translucent plate to split a light beam
    • 光头与半透明板分开光束
    • US5640380A
    • 1997-06-17
    • US510564
    • 1995-08-02
    • Tetsuo SaimiYasuo NishiharaMasatoshi Yajima
    • Tetsuo SaimiYasuo NishiharaMasatoshi Yajima
    • G11B7/12G11B7/125G11B7/135
    • G11B7/1362G11B7/123G11B7/126G11B7/1365
    • Optical-beam 2 emitted from semiconductor laser device 1 is transformed into parallel-light 4 by means of collimator lens 3, and a part of parallel-light 4 passed through parallel glass-plate 7 of which the front-surface is mirror finished and the rear-surface is frost finished is inputted into detector 5 monitoring the light-quantity. The optical-beam reflected from parallel glass-plate 7 is focused on information medium 9 after it passed through a collimator-lens 6. The optical-beam reflected from information medium 9 is then introduced on a detector disposed on the semiconductor laser device taking an reversed course. Since no interference of light transmitted through detector 5 is generated in this optical head, a higher linearity of the output of detector 5 can be obtained so that the better stabilized output control of semiconductor laser device 1 by means of laser control circuit 11 can be obtained.
    • 从半导体激光装置1发射的光束2通过准直透镜3变换成平行光4,并且平行光4的一部分通过平行玻璃板7,其前表面被镜面加工, 后表面霜冻完成输入检测器5监测光量。 从平行玻璃板7反射的光束在通过准直透镜6之后聚焦在信息介质9.然后,将从信息介质9反射的光束引入到设置在半导体激光装置上的检测器上, 反转过程。 由于在该光头中不产生透过检测器5的光的干涉,所以能够获得检测器5的输出的较高的线性度,从而能够获得通过激光控制电路11对半导体激光装置1进行更稳定的输出控制 。
    • 8. 发明授权
    • Light intensity controller and optical pickup device
    • 光强度控制器和光学拾取装置
    • US07745770B2
    • 2010-06-29
    • US12064835
    • 2006-08-09
    • Yasushi KobayashiMasatoshi YajimaAkihiro Sakaguchi
    • Yasushi KobayashiMasatoshi YajimaAkihiro Sakaguchi
    • G01J1/32
    • G11B7/1356G11B7/1263G11B7/1275G11B2007/0006
    • A light intensity control device of the present invention includes a light source for outputting a plurality of types of light beams having different wavelengths; a light receiving section for receiving and converting the light beams into an electric signal in accordance with the intensity of the respective light beam; and a polarization separation section provided between the light source and the light receiving section. The plurality of types of light beams include a first light beam and a second light beam having a longer wavelength than that of the first light beam. The polarization separation section guides both a first polarization direction light component of the second light beam and a second polarization direction light component, perpendicular to the first polarization direction, of the second light beam to the light receiving section. The polarization separation section guides a first polarization direction light component of the first light beam to the light receiving section, and suppresses a second polarization direction component, perpendicular to the first polarization direction, of the first light beam from advancing to the light receiving section.
    • 本发明的光强度控制装置包括用于输出具有不同波长的多种类型的光束的光源; 光接收部分,用于根据各个光束的强度接收并将光束转换成电信号; 以及设置在光源和光接收部之间的偏振分离部。 多种类型的光束包括具有比第一光束波长长的波长的第一光束和第二光束。 极化分离部分将第二光束的第一偏振方向光分量和垂直于第一偏振方向的第二偏振方向光分量引导到光接收部分。 偏光分离部将第一光束的第一偏振方向光分量引导到受光部,并且抑制第一光束的垂直于第一偏振方向的第二偏振方向分量前进到光接收部。
    • 9. 发明申请
    • LIGHT INTENSITY CONTROLLER AND OPTICAL PICKUP DEVICE
    • 光强度控制器和光拾取器件
    • US20090261234A1
    • 2009-10-22
    • US12064835
    • 2006-08-09
    • Yasushi KobayashiMasatoshi YajimaAkihiro Sakaguchi
    • Yasushi KobayashiMasatoshi YajimaAkihiro Sakaguchi
    • G01J1/32
    • G11B7/1356G11B7/1263G11B7/1275G11B2007/0006
    • A light intensity control device of the present invention includes a light source for outputting a plurality of types of light beams having different wavelengths; a light receiving section for receiving and converting the light beams into an electric signal in accordance with the intensity of the respective light beam; and a polarization separation section provided between the light source and the light receiving section. The plurality of types of light beams include a first light beam and a second light beam having a longer wavelength than that of the first light beam. The polarization separation section guides both a first polarization direction light component of the second light beam and a second polarization direction light component, perpendicular to the first polarization direction, of the second light beam to the light receiving section. The polarization separation section guides a first polarization direction light component of the first light beam to the light receiving section, and suppresses a second polarization direction light component, perpendicular to the first polarization direction, of the first light beam from advancing to the light receiving section.
    • 本发明的光强度控制装置包括用于输出具有不同波长的多种类型的光束的光源; 光接收部分,用于根据各个光束的强度接收并将光束转换成电信号; 以及设置在光源和光接收部之间的偏振分离部。 多种类型的光束包括具有比第一光束波长长的波长的第一光束和第二光束。 极化分离部分将第二光束的第一偏振方向光分量和垂直于第一偏振方向的第二偏振方向光分量引导到光接收部分。 偏振分离部将第一光束的第一偏振方向光分量引导到受光部,并且抑制第一光束的垂直于第一偏振方向的第二偏振方向光分量前进到受光部 。
    • 10. 发明授权
    • Clamp device
    • 夹具装置
    • US07377503B2
    • 2008-05-27
    • US11085050
    • 2005-03-22
    • Masatoshi YajimaShouhei ImaiNorio KawanoMasamichi Miwa
    • Masatoshi YajimaShouhei ImaiNorio KawanoMasamichi Miwa
    • B25B1/00
    • B25B5/003B23K37/0443B25B5/122Y10T29/53961
    • The disclosed clamp device for clamping blank pieces may comprise a mounting table, first and second clamping units, positioning units, and lock units. The mounting table is for placing thereon first and second blank pieces. The first and second clamping units have respective clamp plates that are able to be put on the first and second blank pieces while permitting a guided movement of the first and second blank pieces on the mounting table. The positioning units move the first and second blank pieces to establish a positioning of the first and second blank pieces on the mounting table. The lock units apply a given force to the first and second clamp plates to lock the first and second blank pieces.
    • 所公开的用于夹紧坯件的夹紧装置可以包括安装台,第一和第二夹紧单元,定位单元和锁定单元。 安装台用于放置第一和第二坯件。 第一和第二夹紧单元具有能够被放置在第一和第二坯件上的相应夹板,同时允许第一和第二坯件在安装台上的引导运动。 定位单元移动第一和第二坯件以建立第一和第二坯件在安装台上的定位。 锁定单元对第一和第二夹板施加给定的力以锁定第一和第二坯件。