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公开(公告)号：US20090109808A1
公开(公告)日：2009-04-30
申请号：US12208658
申请日：2008-09-11
申请人： Nobuaki Kaji , Kazuo Watabe , Takashi Usui , Keiichiro Yasu , Chosaku Noda , Kazuto Kuroda , Masahiro Saito
发明人： Nobuaki Kaji , Kazuo Watabe , Takashi Usui , Keiichiro Yasu , Chosaku Noda , Kazuto Kuroda , Masahiro Saito
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , H01S5/0428
摘要： According to one embodiment, a laser drive circuit which supplies a drive current to a laser element which outputs light at a predetermined wavelength, and a laser control circuit which supplies a predetermined timing pulse for generation of relaxation oscillation in a laser drive current supplied to the laser drive circuit, the laser control circuit supplying a laser drive current higher than a threshold value which is supplied from the laser drive circuit to the laser element to enable laser light to be output from the laser element, the laser control circuit setting the laser drive current to a level lower than the threshold value on the basis of the timing pulse.
摘要翻译： 根据一个实施例，提供驱动电流到激光元件的激光驱动电路，激光元件输出预定波长的光;以及激光控制电路，其提供预定的定时脉冲，以产生提供给 激光驱动电路，激光控制电路提供高于从激光驱动电路提供给激光元件的阈值的激光驱动电流，以使激光能够从激光元件输出，激光控制电路设置激光驱动 基于定时脉冲将电流电流降至低于阈值的电平。
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公开(公告)号：US07515202B2
公开(公告)日：2009-04-07
申请号：US10812795
申请日：2004-03-30
申请人： Masahiro Saito , Satoshi Ajiki , Kazuhiro Yaegashi , Yukihiro Furusawa , Hironori Nakajo , Michio Sasaki
发明人： Masahiro Saito , Satoshi Ajiki , Kazuhiro Yaegashi , Yukihiro Furusawa , Hironori Nakajo , Michio Sasaki
IPC分类号： H04N5/225
CPC分类号： G02B27/0006 , G02B7/022 , H04N5/2253 , H04N5/2254 , H04N5/2257 , H05K3/403
摘要： A compact camera module is disclosed that is capable of preventing adhesion of dust to an image pickup device in the compact camera module. The compact camera module includes a lens unit including a lens and a lens holder holding the lens therein and an image pickup unit attached to the lens unit. The image pickup unit includes a circuit board, an image pickup device on the circuit board, a cover member arranged on the circuit board to cover the image pickup device, and an optical filter arranged with respect to the cover member to face the image pickup device. The image pickup device is disposed in a substantially closed space formed by the circuit board, the cover member, and the optical filter. After the image pickup device is mounted on the circuit board, the image pickup device is disposed in the substantially closed space, and therefore, the compact camera module can be assembled with no occurrence of dust adhesion to the image pickup device.
摘要翻译： 公开了一种紧凑型相机模块，其能够防止灰尘附着到小型照相机模块中的图像拾取装置。 紧凑型相机模块包括透镜单元，其包括透镜和将透镜保持在其中的透镜保持器以及附接到透镜单元的图像拾取单元。 图像拾取单元包括电路板，电路板上的图像拾取装置，布置在电路板上以覆盖图像拾取装置的盖构件和相对于盖构件布置成面向图像拾取装置的滤光器 。 图像拾取装置设置在由电路板，盖构件和滤光器形成的大致封闭的空间中。 在图像拾取装置安装在电路板上之后，图像拾取装置设置在基本封闭的空间中，因此，可以组装小型相机模块而不会对图像拾取装置产生灰尘附着。
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公开(公告)号：US07508596B2
公开(公告)日：2009-03-24
申请号：US11862611
申请日：2007-09-27
申请人： Masahiro Saito
发明人： Masahiro Saito
CPC分类号： G11B7/1374 , G11B7/13927 , G11B2007/13727
摘要： An objective lens is included in an optical pickup device that records and/or reproduces an information signal onto and/or from an optical recording medium. The objective lens has a numerical aperture of 0.82 or higher, has first and second surfaces that are both aspherical, and focuses a light beam onto the optical recording medium. The first and second surfaces have surface-to-surface eccentricity therebetween that causes an aberration, the aberration being correctable by tilting an optical axis of the objective lens relative to a central axis of the light beam incident on the objective lens. The aberration caused by the surface-to-surface eccentricity includes a third-order coma aberration. When the optical axis is tilted relative to the central axis of the incident light beam so that the third-order coma aberration becomes substantially 0 mλ rms, each of astigmatism, spherical aberration, and high-order coma aberration becomes 20 mλ rms or less.
摘要翻译： 物镜包括在光学拾取装置中，该信号记录和/或再现信息信号到和/或从光学记录介质。 物镜具有0.82或更高的数值孔径，具有非球面的第一和第二表面，并将光束聚焦到光学记录介质上。 第一和第二表面之间具有导致像差的表面到表面偏心，通过使物镜的光轴相对于入射在物镜上的光束的中心轴倾斜来校正像差。 由表面偏心引起的像差包括三阶彗形像差。 当光轴相对于入射光束的中心轴线倾斜，使得三阶彗形像差变得基本上为零毫伏时，散光，球面像差和高阶彗形像差均为20毫伏或更小。
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公开(公告)号：US20050281171A1
公开(公告)日：2005-12-22
申请号：US11154575
申请日：2005-06-17
申请人： Masahiro Saito , Norio Fukasawa , Kiyoshi Toyota , Junichi Suzuki
发明人： Masahiro Saito , Norio Fukasawa , Kiyoshi Toyota , Junichi Suzuki
CPC分类号： G11B7/0903 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup apparatus and an optical disc apparatus are adapted to raise the efficiency of utilization of the lasers of the apparatus for accurately detecting tracking errors by raising the intensity ratio of the beam of the 0-th order to the beams of the ±1st orders produced by splitting of the laser beam of the wavelength to be subjected to division by three. The optical pickup apparatus includes a light emitting section for emitting a first laser beam having wavelength λ1 and a second laser beam having wavelength λ2 different from the wavelength λ1, a surface relief type first diffraction grating having a phase height of two steps produced by being equipped with a first phase grating and a second phase grating arranged at opposite sides of the first phase grating and adapted to split the laser beam of the wavelength λ1 into three beams and transmit substantially all of the laser beam of the wavelength λ2, a surface relief type second diffraction grating having a phase height of two steps produced by being equipped with a first phase grating and a second phase grating arranged at opposite sides of the first phase grating and adapted to split the laser beam of the wavelength λ2 into three beams and transmit substantially all of the laser beam of the wavelength λ1, an objective lens for converging the laser beams emitted from the light emitting section onto an optical disc, an optical element for branching the optical paths of return light reflected by the optical disc, and a light receiving section for receiving the return light branched by the optical element.
摘要翻译： 光学拾取装置和光盘装置适于通过提高第0级的光束与±1阶的光束的强度比来提高设备的激光器的利用效率，以准确地检测跟踪误差 通过将待分割的波长的激光束分裂三次而产生。 光拾取装置包括用于发射具有波长λ1的第一激光束和不同于波长λ1的波长λ2的第二激光束的发光部分，具有通过设置产生的相位高度为两级的表面浮雕型第一衍射光栅 具有布置在第一相位光栅的相对侧处的第一相位光栅和第二相位光栅，并且适于将波长λ1的激光束分成三束并且基本上透射波长λ2的所有激光束，表面浮雕型 第二衍射光栅具有通过配备有第一相位光栅和布置在第一相位光栅的相对侧的第二相位光栅产生的两个阶段的相位高度，并且适于将波长λ2的激光束分成三个光束并基本上透射 波长λ1的所有激光束，用于会聚las的物镜 从光发射部分发射到光盘上的光束，用于分支由光盘反射的返回光的光路的光学元件，以及用于接收由光学元件分支的返回光的光接收部分。
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公开(公告)号：US20050163051A1
公开(公告)日：2005-07-28
申请号：US11084613
申请日：2005-03-18
申请人： Masahiro Saito
发明人： Masahiro Saito
IPC分类号： G01R31/08 , H04L12/46 , H04L12/801 , H04L12/823 , H04L12/911
CPC分类号： H04L47/10 , H04L45/06 , H04L45/40 , H04L49/351 , H04L49/555
摘要： A data transmission apparatus and a data transmission method for receiving an input of control frame and a data frame, transmitting or discarding the data frame according to the control frame input, outputting the control frame, and outputting the data frame which has been transmitted. This enables discarding of an error frame in the middle of transmission, thereby preventing waste of a band on the network or the waste of the destination host processing ability by the error frame.
摘要翻译： 一种用于接收控制帧和数据帧的输入的数据传输装置和数据传输方法，根据控制帧输入发送或丢弃数据帧，输出控制帧，并输出已发送的数据帧。 这样可以在传输中丢弃错误帧，从而防止网络上的频带浪费，或者由错误帧浪费目的主机处理能力。
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公开(公告)号：US06710429B2
公开(公告)日：2004-03-23
申请号：US09881716
申请日：2001-06-18
申请人： Masahiro Saito , Toru Nagamine , Ichio Shimizu
发明人： Masahiro Saito , Toru Nagamine , Ichio Shimizu
IPC分类号： H01L23495
CPC分类号： H01L23/3107 , H01L21/565 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2924/181 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
摘要： A semiconductor device is provided with outer leads which show themselves in the bottom surface of the resin encapsulated body. This structure eliminates minute chipping and cracking near the resin which has been cut in the vicinity of the end of the outer lead. The semiconductor device is produced in such a way that a push-back-portion is previously arranged between leads of the lead frame and the push-back-portion is pushed down after molding. The resulting semiconductor device has outer leads such that there is no encapsulating resin between outer leads which show themselves in the bottom surface of the resin encapsulated body.
摘要翻译： 半导体器件设置有外引线，其显示在树脂封装体的底表面中。 这种结构消除了在外部引线的端部附近被切割的树脂附近的微小的碎裂和裂纹。 制造半导体器件的方式是在引线框架的引线之间预先布置有推回部分，并且在模制之后将推回部分向下推。 所得半导体器件具有外引线，使得在外引线之间不存在封装树脂，外引线显示在树脂封装体的底表面中。
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公开(公告)号：US11567338B2
公开(公告)日：2023-01-31
申请号：US16616516
申请日：2018-05-24
申请人： Yohei Enta , Masahiro Saito , Kazutaka Goami , Hiroshi Matsuda
发明人： Yohei Enta , Masahiro Saito , Kazutaka Goami , Hiroshi Matsuda
摘要： This camera actuator comprises: an optical path bending member; a lens unit disposed at a subsequent stage of the optical path bending member; a first actuator that is disposed near the optical path bending member and displaces the optical path bending member; and a second actuator and a third actuator that are disposed near the lens unit so as to be apart from each other in a first direction, and that respectively displace the lens unit in a second direction and a third direction that are orthogonal to the first direction and orthogonal to each other. As a result, the present invention provides a camera actuator capable of improving the degree of freedom of design around the optical path bending member.
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公开(公告)号：US11563875B2
公开(公告)日：2023-01-24
申请号：US16967747
申请日：2019-02-01
申请人： Masahiro Saito
发明人： Masahiro Saito
摘要： A camera actuator comprises: a fixed-side member; a movable-side member disposed separated from the fixed-side member in a direction orthogonal to a light axis, the movable-side member holding a lens unit; a first lens drive actuator that displaces the movable-side member in at least a prescribed direction; an elastic support member that extends in the direction orthogonal to the light axis, and supports the movable-side member in relation to the fixed-side member so as to allow the displacement in at least the prescribed direction; and a gel-like first damping member provided to the elastic support member.
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公开(公告)号：US08857998B2
公开(公告)日：2014-10-14
申请号：US13035491
申请日：2011-02-25
CPC分类号： G03B21/16 , F21V29/00 , G03B21/2026 , H01J7/24 , H01J61/52
摘要： A light source device includes: a light emission portion; a cooling channel configured to guide air toward the light emission portion; a rotational member disposed within the cooling channel in such a condition as to be rotatable around a predetermined rotation shaft by gravity, and configured to switch the cooling channel to a first channel branched from the cooling channel in the downstream when the light source device is set in a first position, and to a second channel different from the first channel when the light source device is set in a second position, wherein a position of the center of gravity of the rotational member is located at a position shifted from the center between the rotation shaft and an end of the rotational member away from the rotation shaft toward the end.
摘要翻译： 光源装置包括：发光部分; 冷却通道，其构造成朝向所述发光部引导空气; 旋转构件，其设置在所述冷却通道内，以能够通过重力围绕预定旋转轴旋转的状态，并且被配置为当所述光源装置被设定时将所述冷却通道切换到从所述下游的冷却通道分支的第一通道 在第一位置处，并且当光源装置设置在第二位置时，到不同于第一通道的第二通道，其中，旋转构件的重心位置位于从第二通道 旋转轴和旋转构件的端部远离旋转轴朝向端部。
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公开(公告)号：US20140168776A1
公开(公告)日：2014-06-19
申请号：US14235619
申请日：2011-08-01
申请人： Masahiro Saito , Hirokazu Hashimoto , Yukari Ikeda
发明人： Masahiro Saito , Hirokazu Hashimoto , Yukari Ikeda
摘要： An antireflection film has excellent scratch resistance and damp-proof property in addition to having a high degree of antireflective effect, and provides an antireflection plate obtained by laminating the above film. The antireflection film has a lowly refractive layer of a refractive index of less than 1.48 and a thickness of 50 to 200 nm. An antireflection plate includes the antireflection film formed on a transparent resin substrate.
摘要翻译： 除了具有高抗反射效果之外，抗反射膜具有优异的耐擦伤性和防潮性，并且提供了通过层压上述膜获得的抗反射板。 抗反射膜具有折射率小于1.48且厚度为50-200nm的低折射层。 防反射板包括形成在透明树脂基板上的防反射膜。
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