Optical pickup apparatus and objective lens
    1.
    发明申请
    Optical pickup apparatus and objective lens 失效
    光学拾取装置和物镜

    公开(公告)号:US20080192612A1

    公开(公告)日:2008-08-14

    申请号:US12000783

    申请日:2007-12-17

    IPC分类号: G11B7/135 G11B7/00

    摘要: An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07λrms where λ represents a wavelength of a light source, δSA1/δU represents a change of a spherical aberration for an object-to-image distance change δU (|δU|≦0.5 mm) and δSA2/δT represents a change of spherical aberration for a temperature change δT (|δT|≦30° C.), the object-to-image distance is a distance between the light source (a light emitting point) and the information recording surface.

    摘要翻译: 光学拾取装置的物镜将发散光束会聚到信息记录表面上。 满足以下条件公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> | deltaSA /deltaU|.|deltaU|+|deltaSA < &lt;&gt;&lt;&gt;&lt;&lt;&gt;&lt;&gt;&lt;&gt;&lt; deltaSA&lt; 1&gt; / deltaU表示对象到图像间距变化ΔU(| deltaU |≤0.5mm)和deltaSA2 / deltaT表示的球面像差的变化 对于温度变化ΔT(| deltaT | <= 30℃)的球面像差的变化,对象间距离是光源(发光点)和信息记录面之间的距离。

    Optical pickup apparatus and objective lens
    2.
    发明申请
    Optical pickup apparatus and objective lens 失效
    光学拾取装置和物镜

    公开(公告)号:US20060140103A1

    公开(公告)日:2006-06-29

    申请号:US11355220

    申请日:2006-02-16

    IPC分类号: G11B7/135 G11B7/00

    摘要: An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07 λrms where λ represents a wavelength of a light source, δSA1/δU represents a change of a spherical aberration for an object-to-image distance change δU (|δU|≦0.5 mm) and δSA2/δT represents a change of spherical aberration for a temperature change δT (|δT|≦30° C.), the object-to-image distance is a distance between the light source (a light emitting point) and the information recording surface.

    摘要翻译: 光学拾取装置的物镜将发散光束会聚到信息记录表面上。 满足以下条件公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> | deltaSA /deltaU|.|deltaU|+|deltaSA < SUB> 2 / deltaT |。| deltaT | <= 0.07 lambdarms <?in-line-formula description =“In-line Formulas”end =“tail”?>其中lambda表示光源的波长, deltaSA&lt; 1&gt; / deltaU表示对象到图像间距变化ΔU(| deltaU |≤0.5mm)和deltaSA2 / deltaT表示的球面像差的变化 对于温度变化ΔT(| deltaT | <= 30℃)的球面像差的变化,对象间距离是光源(发光点)和信息记录面之间的距离。

    Optical pickup apparatus and objective lens

    公开(公告)号:US06636365B2

    公开(公告)日:2003-10-21

    申请号:US09965088

    申请日:2001-09-28

    IPC分类号: G02B302

    摘要: An optical pickup apparatus for first and second optical information recording medium, comprises first and second light sources to emit first and second light flux; a single objective lens made and a diaphragm having an aperture. The pitch of a plurality of ring-shaped diffractive zones provided on the objective lens, becomes gradually small from the optical axis to a point h and the pitch increases at the point h. At the time of conducting recording or reproducing information of the second optical information recording medium, the second light flux has a spherical aberration discontinuous portion at the point h where a spherical aberration-stepped amount is 7 &mgr;m to 40 &mgr;m, and a spherical aberration of a light ray of the second light flux having passed through the outermost portion of the aperture of the diaphragm is 7 &mgr;m to 40 &mgr;m.

    Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus
    6.
    发明授权
    Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus 失效
    用于记录或再现用于光学拾取装置的光学信息记录介质和物镜的信息的光学拾取装置

    公开(公告)号:US07333416B2

    公开(公告)日:2008-02-19

    申请号:US11355220

    申请日:2006-02-16

    IPC分类号: G11B7/135

    摘要: An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07 λrms where λ represents a wavelength of a light source, δSA1/δU represents a change of a spherical aberration for an object-to-image distance change δU (|δU|≦0.5 mm) and δSA2/δT represents a change of spherical aberration for a temperature change δT (|δT|≦30° C.), the object-to-image distance is a distance between the light source (a light emitting point) and the information recording surface.

    摘要翻译: 光学拾取装置的物镜将发散光束会聚到信息记录表面上。 满足以下条件公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> | deltaSA /deltaU|.|deltaU|+|deltaSA < SUB> 2 / deltaT |。| deltaT | <= 0.07 lambdarms <?in-line-formula description =“In-line Formulas”end =“tail”?>其中lambda表示光源的波长, deltaSA&lt; 1&gt; / deltaU表示对象到图像间距变化ΔU(| deltaU |≤0.5mm)和deltaSA2 / deltaT表示的球面像差的变化 对于温度变化ΔT(| deltaT | <= 30℃)的球面像差的变化,对象间距离是光源(发光点)和信息记录面之间的距离。

    Optical pickup apparatus and objective lens
    7.
    发明授权
    Optical pickup apparatus and objective lens 有权
    光学拾取装置和物镜

    公开(公告)号:US07102980B2

    公开(公告)日:2006-09-05

    申请号:US09983682

    申请日:2001-10-25

    IPC分类号: G11B7/135

    摘要: An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07 λrms where λ represents a wavelength of a light source, δSA1/δU represents a change of a spherical aberration for an object-to-image distance change δU (|δU|≦0.5 mm) and δSA2/δT represents a change of spherical aberration for a temperature change δT (|δT|≦30° C.), the object-to-image distance is a distance between the light source (a light emitting point) and the information recording surface.

    摘要翻译: 光学拾取装置的物镜将发散光束会聚到信息记录表面上。 满足以下条件公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> | deltaSA /deltaU|.|deltaU|+|deltaSA < SUB> 2 / deltaT |。| deltaT | <= 0.07 lambdarms <?in-line-formula description =“In-line Formulas”end =“tail”?>其中lambda表示光源的波长, deltaSA&lt; 1&gt; / deltaU表示对象到图像间距变化ΔU(| deltaU |≤0.5mm)和deltaSA2 / deltaT表示的球面像差的变化 对于温度变化ΔT(| deltaT | <= 30℃)的球面像差的变化,对象间距离是光源(发光点)和信息记录面之间的距离。

    Objective optical element, optical pick-up apparatus, and optical information recording reproducing apparatus
    8.
    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)。

    Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus
    9.
    发明授权
    Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus 失效
    用于记录或再现用于光学拾取装置的光学信息记录介质和物镜的信息的光学拾取装置

    公开(公告)号:US07639589B2

    公开(公告)日:2009-12-29

    申请号:US12000783

    申请日:2007-12-17

    IPC分类号: G11B7/135

    摘要: An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07 λrms where λ represents a wavelength of a light source, δSA1/δU represents a change of a spherical aberration for an object-to-image distance change δU (|δU|≦0.5 mm) and δSA2/δT represents a change of spherical aberration for a temperature change δT (|δT|≦30° C.), the object-to-image distance is a distance between the light source (a light emitting point) and the information recording surface.

    摘要翻译: 光学拾取装置的物镜将发散光束会聚到信息记录表面上。 满足以下条件公式:| deltaSA1 / deltaU |。| deltaU | + | deltaSA2 / deltaT |。| deltaT | 其中λ表示光源的波长,deltaSA1 / deltaU表示对象对图像距离变化ΔU(| deltaU | <= 0.5mm)的球面像差的变化,deltaSA2 / deltaT表示球面像差的变化 温度变化ΔT(| deltaT | <= 30℃),物体与图像的距离是光源(发光点)和信息记录表面之间的距离。