Objective lens and optical pickup apparatus
    61.
    发明申请
    Objective lens and optical pickup apparatus 失效
    物镜和光学拾取装置

    公开(公告)号:US20070070861A1

    公开(公告)日:2007-03-29

    申请号:US11604804

    申请日:2006-11-28

    申请人: Kiyono Ikenaka

    发明人: Kiyono Ikenaka

    IPC分类号: G11B7/135

    摘要: An objective lens according to the present invention is provided for use in an optical pickup apparatus at least reproducing and/or recording information using a light flux with a wavelength λ1 emitted by a first light source for a first optical disc and reproducing and/or recording information using a light flux with a wavelength λ2 emitted by a second light source for a second optical disc. The objective lens includes a diffractive structure formed on the at least one optical surface of the objective lens. The light fluxes with the wavelengths λ1 and λ2 enter the objective lens, an optical system magnifications m1 and m2 of the objective lens respectively for the light fluxes with wavelengths λ1 and λ2 have different signs and values from each other, and the diffractive structure has a positive diffractive action.

    摘要翻译: 根据本发明的物镜被提供用于光学拾取装置,至少使用由第一光源发射的用于第一光盘的波长λ1的光通量进行再现和/或记录信息,并且再现和/或记录 使用由第二光源发射的用于第二光盘的波长λ2的光通量的信息。 物镜包括形成在物镜的至少一个光学表面上的衍射结构。 具有波长λ1和λ2的光束进入物镜,分别对于具有波长λ1和λ2的光束的物镜的光学系统放大倍数m1和m2具有彼此不同的符号和值,并且衍射结构具有 正衍射作用。

    Optical pickup device and optical element
    62.
    发明申请
    Optical pickup device and optical element 失效
    光拾取装置和光学元件

    公开(公告)号:US20050237899A1

    公开(公告)日:2005-10-27

    申请号:US11108750

    申请日:2005-04-19

    IPC分类号: G11B7/00 G11B7/135

    摘要: An optical pickup device includes a light source emitting a light beam having a wavelength within a range of 390 nm to 420 nm and an optical element to perform recording and/or reproducing of information of an optical disk having a protective substrate thickness d1 mm using the first light beam from the first light source, wherein the optical element is made of a mixed material produced by dispersing particles into a resin, a sign of a refractive index change Δn2/Δt of the particles owing to a temperature change is opposite to a sign of a refractive index change Δn1/Δt of the resin owing to a temperature change, or an absolute value of the refractive index change Δn2/Δt is smaller than an absolute value of the refractive index change Δn1/Δt.

    摘要翻译: 光拾取装置包括发射波长在390nm至420nm范围内的光束的光源和用于执行具有保护基板厚度d的光盘的信息的记录和/或再现的光学元件, 使用来自第一光源的第一光束,其中光学元件由通过将颗粒分散到树脂中而制成的混合材料,折射率变化的符号Deltan2 /由于温度变化引起的颗粒的变形与折射率变化的迹象相反,由于温度变化或折射率变化的绝对值,树脂的变形 Deltan< 2> / Deltat小于折射率变化的绝对值Deltan< 1> / Deltat。

    Optical pickup device and optical system used for the same
    63.
    发明申请
    Optical pickup device and optical system used for the same 审中-公开
    光拾取装置与光学系统相同

    公开(公告)号:US20050105447A1

    公开(公告)日:2005-05-19

    申请号:US10984777

    申请日:2004-11-10

    摘要: An optical pickup device includes an objective optical element through which light fluxes respectively with wavelengths λ1, λ2 and λ3 pass and a divergent angle-converting element that causes light fluxes respectively with wavelengths λ1, λ2 and λ3 pass through and causes at least q light flux with wavelength λ1 to emerge as a parallel light. A position of the divergent angle-converting element in the optical axis direction varies in the case of using the optical pickup apparatus depending on the occasion when a light flux with wavelength λ1 or λ2 passes through or on the occasion when a light flux with wavelength λ3 passes through.

    摘要翻译: 光学拾取装置包括物镜光学元件,通过该对象光学元件分别具有波长λ1,λ2和λ3的光束通过,以及使分别具有波长λ1,λ2和λ3的光通量的发散角度转换元件通过并且至少导致q光通量 波长λ1出现为平行光。 发散角度转换元件在光轴方向上的位置在使用光学拾取装置的情况下根据波长λ1或λ2的光束通过的情况而变化,或者当波长为λ3的光通量时 经过。

    Optical pick-up apparatus
    64.
    发明申请
    Optical pick-up apparatus 失效
    光学拾取装置

    公开(公告)号:US20050036430A1

    公开(公告)日:2005-02-17

    申请号:US10913460

    申请日:2004-08-09

    申请人: Kiyono Ikenaka

    发明人: Kiyono Ikenaka

    摘要: An optical pick-up apparatus comprising: first, second and third light sources for recording and/or reproducing respectively first, second and third optical information recording material; an objective optical element having a diffractive structure on an optical surface of the objective lens, wherein a diffraction efficiency E1 of a first primary diffractive ray is not less than 90%, a diffraction order n1 of the first primary diffractive ray is an odd number, and an output power PW3, which is an output power of the third light source when the third light source emits the third light flux, is emitted is greater than an output power PW1, which is an output power of the first light source when the first light source emits the first light flux.

    摘要翻译: 一种光学拾取装置,包括:第一,第二和第三光源,用于分别记录和/或再现第一,第二和第三光学信息记录材料; 在所述物镜的光学面上具有衍射结构的物镜光学元件,其中,所述第一主衍射光的衍射效率E1为90%以上,所述第一次级衍射光的衍射级n1为奇数, 并且当第三光源发射第三光束时作为第三光源的输出功率的输出功率PW3大于作为第一光源的输出功率的输出功率PW1,作为第一光源的第一 光源发射第一光通量。

    Objective optical element, optical pick-up apparatus, and optical information recording reproducing apparatus
    65.
    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 pick-up apparatus
    66.
    发明授权
    Optical pick-up apparatus 失效
    光学拾取装置

    公开(公告)号:US07903528B2

    公开(公告)日:2011-03-08

    申请号:US11775007

    申请日:2007-07-09

    IPC分类号: G11B7/00

    摘要: An optical pickup apparatus for conducting recording and/or reproducing information for a first optical information recording medium including at least a transparent protective substrate, a first information recording surface, and a second information recording surface which are laminated in this order from a light source side along an optical axis, comprising: a first light source to emit a light flux having a wavelength of λ1 (380 nm≦λ1≦450 nm); an objective lens to converge the light flux onto the first optical information recording medium; a spherical aberration correcting structure to correct a spherical aberration caused in a converged spot on the first and second information recording surfaces due to a difference in thickness between the thickness to the first information recording surface and the thickness to the second information recording surface.

    摘要翻译: 一种用于对包括至少透明保护基板,第一信息记录表面和第二信息记录表面的第一光学信息记录介质进行记录和/或再现信息的光学拾取装置,其从光源侧依次层叠 沿着光轴,包括:第一光源,用于发射波长为λ1(380nm≦̸λ1≦̸ 450nm)的光束; 用于将光束会聚到第一光学信息记录介质上的物镜; 球面像差校正结构,用于校正由于第一信息记录表面的厚度与第二信息记录表面的厚度之间的厚度差,在第一和第二信息记录表面上的会聚点引起的球面像差。

    Optical pickup apparatus which records and/or reproduces information using different types of optical information recording mediums
    67.
    发明授权
    Optical pickup apparatus which records and/or reproduces information using different types of optical information recording mediums 失效
    使用不同类型的光学信息记录介质记录和/或再现信息的光学拾取装置

    公开(公告)号:US07498550B2

    公开(公告)日:2009-03-03

    申请号:US11713489

    申请日:2007-03-01

    申请人: Kiyono Ikenaka

    发明人: Kiyono Ikenaka

    IPC分类号: G02B7/04 H01J3/14

    摘要: An optical pickup apparatus for recording and/or reproducing information for an optical information recording medium, comprising a light converging optical system including a coupling lens and an objective lens, wherein a first diffraction structure is installed on the objective lens, and a second diffraction structure is arranged on the coupling lens, whereby spherical aberration caused by change of ambient temperature is reduced by giving a condition to reduce the number of areas formed in a ring-shaped of the diffractive structure.

    摘要翻译: 一种用于记录和/或再现用于光学信息记录介质的信息的光学拾取装置,包括具有耦合透镜和物镜的聚光光学系统,其中第一衍射结构安装在物镜上,第二衍射结构 布置在耦合透镜上,由此通过给出减少在衍射结构的环形中形成的区域的数量的条件来减小由环境温度的变化引起的球面像差。

    Optical pickup device and optical element used for the same
    68.
    发明授权
    Optical pickup device and optical element used for the same 失效
    用于其的光学拾取装置和光学元件

    公开(公告)号:US07330406B2

    公开(公告)日:2008-02-12

    申请号:US11702191

    申请日:2007-02-05

    IPC分类号: G11B7/00

    摘要: An optical pickup device, comprises light sources to emit a first light flux having a wavelength λ1 (380 nm

    摘要翻译: 一种光学拾取装置,包括用于发射波长为λ1(380nm <λ<450nm)的第一光束的光源; 具有波长λ2(600nm <λ2 <700nm)的第二光通量; 和聚光光学系统。 聚光光学系统通过具有厚度t 1的保护层将第一光学信息会聚在第一光学信息记录介质上,并且聚光光学系统通过保护层将第二光束会聚在第二光学信息记录介质上 具有厚度t 2。 聚光光学系统通过使用产生的N级衍射光线在第一光学信息记录介质的信息记录表面上形成第一点,并且聚光光学系统在信息记录表面上形成第二点 通过使用产生的M阶(M

    Optical pickup apparatus
    69.
    发明申请
    Optical pickup apparatus 失效
    光拾取装置

    公开(公告)号:US20070230312A1

    公开(公告)日:2007-10-04

    申请号:US11728811

    申请日:2007-03-27

    申请人: Kiyono Ikenaka

    发明人: Kiyono Ikenaka

    IPC分类号: G11B7/00

    摘要: The present invention provides an optical pickup apparatus including: a first light source; a second light source; and a light-converging optical system including a coupling lens and an objective lens. The coupling lens includes a first diffractive structure. The optical pickup apparatus satisfies a predetermined condition according to the chromatic aberration, focal length, and dispersion of the material.

    摘要翻译: 本发明提供一种光拾取装置,包括:第一光源; 第二光源; 以及包括耦合透镜和物镜的聚光光学系统。 耦合透镜包括第一衍射结构。 光拾取装置根据材料的色差,焦距和色散满足预定条件。

    Optical pickup apparatus
    70.
    发明申请
    Optical pickup apparatus 审中-公开
    光拾取装置

    公开(公告)号:US20070211601A1

    公开(公告)日:2007-09-13

    申请号:US11713421

    申请日:2007-03-02

    申请人: Kiyono Ikenaka

    发明人: Kiyono Ikenaka

    IPC分类号: G11B7/00

    摘要: The present invention provides an optical pickup apparatus including a first light source, a second light source, a third light source, and a light-converging optical system including an objective lens. The objective lens includes at least one optical surface with a diffractive structure. The diffractive structure includes a plurality of ring shaped zones. Each of the ring shaped zones is concentrically arranged around an optical axis and includes a step difference extending along the optical axis. In the objective lens, the predetermined conditions according to an average of step differences of the plurality of ring shaped zones, a focal length, a magnification, and the Abbe number, are satisfied.

    摘要翻译: 本发明提供一种包括第一光源,第二光源,第三光源和包括物镜的聚光光学系统的光学拾取装置。 物镜包括具有衍射结构的至少一个光学表面。 衍射结构包括多个环形区域。 每个环形区域围绕光轴同心地布置并且包括沿着光轴延伸的台阶差。 在物镜中,满足根据多个环形区域的台阶差的平均值,焦距,倍率和阿贝数的预定条件。