Optical pickup device
    1.
    发明申请
    Optical pickup device 审中-公开
    光学拾取装置

    公开(公告)号:US20050007931A1

    公开(公告)日:2005-01-13

    申请号:US10882617

    申请日:2004-07-01

    IPC分类号: G11B7/00 G11B7/125 G11B7/135

    摘要: An optical pickup apparatus having a light source unit including a plurality of light emitting, a beam regulating element to regulate a light flux emitted from the light source unit so that the an angle of divergence of the light flux emitted from the light source unit is changed to a first direction and/or a second direction, wherein a distance from each of the light emitting element to a surface of a protective layer that protects the recording surface is constant regardless a type of the optical information recording medium.

    摘要翻译: 一种具有包括多个发光的光源单元的光学拾取装置,用于调节从光源单元发射的光束的光束调节元件,使得从光源单元发射的光束的发散角度改变 到第一方向和/或第二方向,其中从每个发光元件到保护记录表面的保护层的表面的距离是恒定的,而与所述光学信息记录介质的类型无关。

    Objective lens and optical pickup apparatus
    5.
    发明申请
    Objective lens and optical pickup apparatus 审中-公开
    物镜和光学拾取装置

    公开(公告)号:US20060077862A1

    公开(公告)日:2006-04-13

    申请号:US11245188

    申请日:2005-10-07

    IPC分类号: G11B7/00

    CPC分类号: G11B7/1374 G11B2007/0006

    摘要: An objective lens for an optical pickup apparatus includes: one optical surface in an aspherical shape including a central area for converging the first and second light fluxes having a first area and the second area, and a peripheral area for converging the first light flux. The central area includes a first diffractive structure. The first diffractive structure faces an outer side of the objective lens in the first area and faces an inner side of the objective lens in the second area. The peripheral area is an optical surface which makes a light flux passing through the peripheral area reach to a position apart from the optical axis on an information recording surface of the second optical information recording medium when the optical pickup apparatus records or reproduces information on the second optical information recording medium using the second light flux.

    摘要翻译: 一种用于光学拾取装置的物镜包括:一个非球面形状的光学表面,包括用于会聚具有第一区域和第二区域的第一和第二光束的中心区域和用于会聚第一光通量的周边区域。 中心区域包括第一衍射结构。 第一衍射结构在第一区域中面向物镜的外侧,并且在第二区域中面对物镜的内侧。 外围区域是光学表面,当光学拾取装置在第二光学信息记录介质的信息记录表面上记录或再现第二光信息记录介质上的信息时,使得穿过周边区域的光通量在第二光学信息记录介质的信息记录表面上到达远离光轴的位置 使用第二光通量的光信息记录介质。

    Objective lens for optical pick-up apparatus and optical pick-up apparatus
    6.
    发明授权
    Objective lens for optical pick-up apparatus and optical pick-up apparatus 失效
    用于光学拾取装置和光学拾取装置的物镜

    公开(公告)号:US06747812B2

    公开(公告)日:2004-06-08

    申请号:US10298008

    申请日:2002-11-18

    IPC分类号: G02B1318

    摘要: An objective lens for use in an optical pickup apparatus in which first and second light sources are provided on a same flat surface, converges each of the light fluxes from the first and second light sources onto an information recording plane through each of transparent substrates of a first and second optical information recording mediums and has a coma aberration of 0.015 &lgr;1 rms or less when recording or reproducing information is conducted for the first optical information recording medium, and a coma aberration of 0.015 &lgr;2 rms or less when recording or reproducing information is conducted for the second optical information recording medium.

    摘要翻译: 一种用于光学拾取装置的物镜,其中第一和第二光源设置在相同的平面上,将来自第一和第二光源的每个光束通过每个透明基板收敛到信息记录平面上 第一和第二光学信息记录介质,并且当对第一光学信息记录介质进行记录或再现信息时具有0.015λ1rms或更小的彗形像差,并且当进行记录或再现信息时,彗差为0.015λ2rms或更小 用于第二光学信息记录介质。

    Objective optical element, optical pick-up apparatus, and optical information recording reproducing apparatus
    7.
    发明授权
    Objective optical element, optical pick-up apparatus, and optical information recording reproducing apparatus 失效
    物镜光学元件,光学拾取装置和光学信息记录再现装置

    公开(公告)号:US06856471B2

    公开(公告)日:2005-02-15

    申请号:US10368784

    申请日:2003-02-19

    摘要: An objective optical element for use in an optical pickup apparatus, includes an objective lens to converge the light flux emitted from the first and second light sources; and an optical functional surface including a common region and an exclusive region. When a first optical information medium is used, a sine condition unsatisfied-amount whose value is maximum exists on the common region. The following formula is satisfied: 0.5≦COMA2/COMA1≦1.0 where COMA1 is a coma aberration (λ1 rms) when a light flux goes slantingly to be incident with a view angle of 1° onto the objective optical element when the first optical information medium is used, and COMA2 is a coma aberration (λ2 rms) when a light flux goes slantingly to be incident with a view angle of 1° onto the objective optical element when the second optical information medium is used.

    摘要翻译: 一种用于光学拾取装置的物镜光学元件,包括:物镜,用于会聚从第一和第二光源发出的光束; 以及包括公共区域和专有区域的光学功能表面。 当使用第一光信息介质时,公共区域上存在值最大的正弦条件不满足量。 满足以下公式:当使用第一光信息介质时,当光通量倾斜倾斜入射到物镜光学元件上时,COMA1为彗差(λ1rms),COMA2为 当使用第二光信息介质时光通量倾斜地以1°的视角入射到物镜光学元件上时的彗形像差(λ2rms)。

    Starting control unit for a refrigeration machine
    8.
    发明授权
    Starting control unit for a refrigeration machine 失效
    制冷机启动控制单元

    公开(公告)号:US5959428A

    公开(公告)日:1999-09-28

    申请号:US956099

    申请日:1997-10-24

    摘要: Without consuming excessive energy, the invented control unit of refrigerating machine can pour out an accurate amount of refrigerant resting inside the lubricant in short time in order to prevent its foaming. A refrigerating machine provided with inverter-driven compressor comprises current detection circuit that detects current being supplied to drive the compressor and a control circuit that controls the compressor based on a detection result from the current detection circuit. The invented control unit for refrigerating machine is characterized in that the control circuit which applies fixed frequency and fixed voltage to the compressor on start-up. An operation of the compressor is valuated using detection result from the current detection circuit, and based on the result from the current detection circuit, operating frequency of the compressor is controlled.

    摘要翻译: 本发明的制冷机控制单元不会消耗过多的能量,可以在短时间内将精确量的制冷剂倒在润滑剂内,以防止其发泡。 设置有逆变器驱动压缩机的制冷机包括电流检测电路,其检测供给驱动压缩机的电流和基于来自电流检测电路的检测结果来控制压缩机的控制电路。 本发明的冷冻机控制单元的特征在于,在启动时对压缩机施加固定频率和固定电压的控制电路。 使用来自电流检测电路的检测结果对压缩机的动作进行评价,根据来自电流检测电路的结果,控制压缩机的工作频率。

    Control apparatus for multi-air-conditioner
    9.
    发明授权
    Control apparatus for multi-air-conditioner 失效
    多空调控制装置

    公开(公告)号:US5642857A

    公开(公告)日:1997-07-01

    申请号:US607928

    申请日:1996-02-28

    IPC分类号: F24F11/02 F24F11/00 F25B13/00

    CPC分类号: F24F11/0009 F24F2011/0067

    摘要: A control apparatus for a multi-air-conditioner having an external unit and a plurality of internal units includes a DC electric power supply. An external transmitting/receiving circuit is provided with the external unit and is connected with the DC electric power supply, and a plurality of internal transmitting/receiving circuits are provided with the plurality of internal units and are connected serially with the external transmitting/receiving circuit via a signal line. A DC voltage is supplied for transmitting data from the external unit to the internal unit, which reduces a leakage distance of the circuit. A timing for transmitting data can be set freely, a transmitting speed of data can be improved using a high-speed photo-coupler, and thus an operation speed of the internal unit can be improved in the multi-air-conditioner having the plurality of internal units.

    摘要翻译: 具有外部单元和多个内部单元的多空调控制装置包括直流电源。 外部发送/接收电路设置有外部单元并与直流电源连接,并且多个内部发送/接收电路设置有多个内部单元并且与外部发送/接收电路串联连接 通过信号线。 提供直流电压,用于将数据从外部单元发送到内部单元,从而减小电路的泄漏距离。 可以自由地设定发送数据的定时,可以使用高速光耦合器来提高数据的发送速度,从而可以在具有多个光耦合器的多空调机中提高内部单元的操作速度 内部单位。

    Objective Lens and Optical Pickup Device
    10.
    发明申请
    Objective Lens and Optical Pickup Device 审中-公开
    物镜和光学拾取装置

    公开(公告)号:US20110199882A1

    公开(公告)日:2011-08-18

    申请号:US13124391

    申请日:2009-10-06

    申请人: Hidekazu Totsuka

    发明人: Hidekazu Totsuka

    IPC分类号: G11B7/135

    摘要: There are provided an optical pickup apparatus which can record/reproduce information properly at a time of temperature change or of using a multilayer disc, and an objective lens for use in the same. When temperature changes, spherical aberration resulting from a change in refractive index of objective lens OBJ increases. Therefore, collimation lens CL is moved by uniaxial actuator AC1 in the direction of the optical axis, to make a finite light flux enter objective lens OBJ, which controls the spherical aberration. When a BD is a multilayer disc, spherical aberration also increases at a time of carrying out an interlayer jump from one layer to another in a plurality of information recording surfaces. Therefore, collimation lens CL is moved in the direction of the optical axis corresponding to the increase. The tilt sensitivity of objective lens OBJ is increased to handle that. Thereby, the occurrence of the third-order coma is effectively controlled even when a finite light flux enters objective lens OBJ.

    摘要翻译: 提供了一种可以在温度变化时或使用多层盘及其使用的物镜上适当地记录/再现信息的光学拾取装置。 当温度变化时,由物镜OBJ的折射率变化引起的球面像差增大。 因此,准直透镜CL通过单轴致动器AC1沿光轴的方向移动,以使有限的光通量进入物镜OBJ,其控制球面像差。 当BD是多层盘时,在多个信息记录表面中进行从一层到另一层的层间跳跃时,球面像差也增加。 因此,准直透镜CL在与增加对应的光轴方向上移动。 增加物镜OBJ的倾斜灵敏度来处理。 由此,即使当有限光束进入物镜OBJ时也能有效地控制三阶彗差的发生。