Optical pickup and an optical pickup objective lense assembling method
    12.
    发明授权
    Optical pickup and an optical pickup objective lense assembling method 失效
    光学拾取和光学拾取物镜组合方法

    公开(公告)号:US6055113A

    公开(公告)日:2000-04-25

    申请号:US35138

    申请日:1998-03-05

    IPC分类号: G11B7/135 G11B7/22 G02B7/02

    摘要: This invention intends to provide an optical pickup of which it is possible to limit aberrations within a tolerable limit without incorporating a special device for that purpose even if errors arise in thickness of component lenses of a two-lens system constituting an element of the pickup. This object is achieved by providing an optical pickup incorporating a two-lens system with first and second lenses 13 and 14 being arranged in the following manner: the first lens has a first surface 15 to receive a laser beam radiated from a semiconductor laser and a second surface 16 to direct the laser beam transmitted from the first surface 15 towards the second lens 14; the second lens 14 has a third surface 17 to receive the light flux transmitted from the second surface 16 and a fourth surface 18 to direct the light flux transmitted from the third surface 17 towards an optical disc placed opposite thereto; and the first and fourth surfaces are used as a reference during positioning.

    摘要翻译: 本发明旨在提供一种光拾取器,即使在构成拾取器的元件的双透镜系统的分量透镜的厚度上出现误差,也可以将像差限制在可容许极限内,而不需要用于该目的的特殊装置。 该目的通过提供一种包含双透镜系统的光学拾取器来实现,其中第一和第二透镜13和14以如下方式布置:第一透镜具有第一表面15,以接收从半导体激光器辐射的激光束和 第二表面16,用于将从第一表面15传递的激光束引向第二透镜14; 第二透镜14具有第三表面17,用于接收从第二表面16传播的光束和第四表面18,以将从第三表面17传播的光束朝向与其相对放置的光盘; 并且在定位期间将第一和第四表面用作参考。

    Lens designing method and objective lens apparatus with two lenses
    13.
    发明授权
    Lens designing method and objective lens apparatus with two lenses 失效
    镜头设计方法和具有两个镜头的物镜设备

    公开(公告)号:US5828453A

    公开(公告)日:1998-10-27

    申请号:US812736

    申请日:1997-03-06

    摘要: A method for designing an objective lens apparatus formed by at least two lenses, a first lens and a second lens, which includes the steps of: measuring aberration which occurs when a light beam is converged by the first lens; setting the first lens is set such that the aberration occurring in the first lens satisfies Marechal's criterion, in accordance with the measurement results; measuring aberration which occurs when a light beam is converged by the first lens and the second lens; and setting the second lens such that the aberrations occurring in the first lens and the second lens satisfy Marechal's criterion, in accordance with the measurement results. Accordingly, an objective lens apparatus with a small aberration and a large numerical aperture NA can be designed by this method.

    摘要翻译: 一种用于设计由至少两个透镜,第一透镜和第二透镜形成的物镜设备的方法,包括以下步骤:测量当光束被第一透镜会聚时发生的像差; 设置第一透镜被设置为使得根据测量结果,发生在第一透镜中的像差满足Mar + E,acu e + EE chal's标准; 测量当第一透镜和第二透镜会聚光束时发生的像差; 并且根据测量结果设置第二透镜,使得发生在第一透镜和第二透镜中的像差满足Mar + E,acu e + EE chal's标准。 因此,可以通过该方法设计具有小像差和大数值孔径NA的物镜设备。

    Optical pickup device for light collection onto an optical recording
medium
    14.
    发明授权
    Optical pickup device for light collection onto an optical recording medium 失效
    用于光收集到光记录介质上的光拾取装置

    公开(公告)号:US5774281A

    公开(公告)日:1998-06-30

    申请号:US597978

    申请日:1996-02-07

    IPC分类号: G11B7/12 G11B7/135 G02B7/02

    摘要: An optical pickup device for condensing the light from a light source on a signal recording surface of an optical recording medium, such as an optical disc. A semi-spherical lens of the optical pickup device has a surface 9b facing an optical disc 20 and has a pre-set refractive index. The optical pickup device also has a slider 12 adapted for securing the lens 9 and for being in sliding contact with an optical disc 20, and a spring plate 13 adapted for thrusting and supporting the slider in sliding contact with the optical disc 20. With the optical pickup device, high density reproduction may be realized, while the tolerance value for warping during disc molding or the tolerance value for warping due to moisture absorption may be increased. In addition, the production yield and the degree of freedom in selecting the disc materials may be improved.

    摘要翻译: 一种光拾取装置,用于将来自光源的光聚焦在诸如光盘的光记录介质的信号记录表面上。 光学拾取装置的半球形透镜具有面向光盘20的表面9b并且具有预设折射率。 光学拾取装置还具有适于固定透镜9并与光盘20滑动接触的滑块12以及适于推动和支撑滑动件以与光盘20滑动接触的弹簧板13。 可以实现光拾取装置的高密度再现,而盘成型时的翘曲的公差值或由于吸湿引起的翘曲的公差值可能增加。 此外,可以提高选择盘材料的生产率和自由度。

    optical pickup apparatus
    15.
    发明授权
    optical pickup apparatus 失效
    光学拾取装置

    公开(公告)号:US5764613A

    公开(公告)日:1998-06-09

    申请号:US640209

    申请日:1996-04-30

    IPC分类号: G11B7/125 G11B7/135 G11B7/09

    摘要: An optical pickup apparatus is constructed of an objective lens for condensing a light beam emitted from a light source toward an optical recording medium, and a convex lens arranged between the optical recording medium and the objective lens in which a surface thereof upon which the luminous flux projected from the objective lens is incident is a convex spherical surface with a radius of curvature which is a predetermined value, and another surface thereof which is located near and opposite to a surface portion of the optical recording medium which is a plane. With this arrangement, a tolerance with respect to decentering of the convex lens in connection with the optical axis of the objective lens is increased, so that an occurrence of aberration is reduced.

    摘要翻译: 光学拾取装置由用于将从光源发射的光束朝向光学记录介质聚光的物镜和布置在光学记录介质和物镜之间的凸透镜构成,其中其光通量 从物镜入射的是具有预定值的曲率半径的凸球形表面,并且其另一表面位于作为平面的光记录介质的表面部分附近和相对。 利用这种布置,相对于与透镜的光轴相关的凸透镜的偏心度的公差增加,从而减小了像差的发生。

    Imaging device
    16.
    发明授权
    Imaging device 有权
    成像设备

    公开(公告)号:US08237843B2

    公开(公告)日:2012-08-07

    申请号:US12757520

    申请日:2010-04-09

    IPC分类号: H04N5/225 G02B13/16 G02B27/10

    摘要: Disclosed herein is an imaging device, including: an imaging lens having an aperture stop; an imaging element adapted to obtain image data based on received light; and a microlens array provided in the focal plane of the imaging lens between the imaging lens and imaging element, the microlens array including a plurality of microlenses arranged in such a manner that each microlens is associated with a plurality of imaging pixels of the imaging element, wherein the arrangement of the microlenses of the microlens array is corrected from an equidistant arrangement to a non-linear arrangement according to the height of the image from the imaging lens on the imaging element.

    摘要翻译: 本文公开了一种成像装置,包括:具有孔径光阑的成像透镜; 适于基于接收到的光获得图像数据的成像元件; 以及设置在成像透镜和成像元件之间的成像透镜的焦平面中的微透镜阵列,所述微透镜阵列包括以使得每个微透镜与所述成像元件的多个成像像素相关联的方式布置的多个微透镜, 其中根据成像元件上的成像透镜的图像的高度,将微透镜阵列的微透镜的布置从等距布置校正为非线性排列。

    Imaging apparatus and imaging method
    17.
    发明授权
    Imaging apparatus and imaging method 有权
    成像设备及成像方法

    公开(公告)号:US08180119B2

    公开(公告)日:2012-05-15

    申请号:US11987449

    申请日:2007-11-30

    IPC分类号: G06K9/00

    摘要: A biometrics authentication system capable of easily performing biometrics authentication is provided. A biometrics authentication system includes: a microlens array section including a plurality of microlenses; an image pickup device for receiving light condensed by each microlens in the microlens array section from each different part of a living organism to obtain image pickup data of each part; an image processing section for producing a single image pickup data of the living organism on the basis of the image pickup data of each part captured by the image pickup device; and an authentication section for performing at least vein authentication using a vein of the living organism on the basis of the single image pickup data captured by the image processing section.

    摘要翻译: 提供了能够容易地进行生物体认证的生物体认证系统。 生物识别认证系统包括:微透镜阵列部分,包括多个微透镜; 用于接收来自活体的每个不同部分的微透镜阵列部分中的每个微透镜会聚的光的图像拾取装置,以获得每个部分的图像拾取数据; 图像处理部,其根据由摄像装置拍摄的各部的图像拾取数据,生成生物体的单个摄像数据; 以及用于基于由图像处理部分捕获的单个图像拾取数据,使用生物体的静脉至少执行静脉认证的认证部分。

    IMAGING DEVICE
    18.
    发明申请
    IMAGING DEVICE 有权
    成像装置

    公开(公告)号:US20100265381A1

    公开(公告)日:2010-10-21

    申请号:US12757520

    申请日:2010-04-09

    IPC分类号: H04N5/225

    摘要: Disclosed herein is an imaging device, including: an imaging lens having an aperture stop; an imaging element adapted to obtain image data based on received light; and a microlens array provided in the focal plane of the imaging lens between the imaging lens and imaging element, the microlens array including a plurality of microlenses arranged in such a manner that each microlens is associated with a plurality of imaging pixels of the imaging element, wherein the arrangement of the microlenses of the microlens array is corrected from an equidistant arrangement to a non-linear arrangement according to the height of the image from the imaging lens on the imaging element.

    摘要翻译: 本文公开了一种成像装置,包括:具有孔径光阑的成像透镜; 适于基于接收到的光获得图像数据的成像元件; 以及设置在成像透镜和成像元件之间的成像透镜的焦平面中的微透镜阵列,所述微透镜阵列包括以使得每个微透镜与所述成像元件的多个成像像素相关联的方式布置的多个微透镜, 其中根据成像元件上的成像透镜的图像的高度,将微透镜阵列的微透镜的布置从等距布置校正为非线性排列。

    IMAGE PICKUP APPARATUS AND IMAGE PICKUP METHOD
    19.
    发明申请
    IMAGE PICKUP APPARATUS AND IMAGE PICKUP METHOD 失效
    图像拾取装置和图像拾取方法

    公开(公告)号:US20100066812A1

    公开(公告)日:2010-03-18

    申请号:US12312752

    申请日:2007-11-28

    IPC分类号: H04N13/02 H04N5/225 H04N5/228

    摘要: An image pickup apparatus having a simple configuration and being capable of performing switching between an image pickup mode based on a light field photography technique and a normal high-resolution image pickup mode is provided. The image pickup apparatus includes an image pickup lens 11, a microlens array section 12 where light passing through the image pickup lens 11 enters, and an image pickup device 13 sensing light emitted from the microlens array section 12, and the focal length of each of microlenses constituting the microlens array section 12 is variable in response to an applied voltage.

    摘要翻译: 提供一种具有简单配置并且能够在基于光场摄影技术的图像拾取模式和正常高分辨率图像拾取模式之间进行切换的图像拾取装置。 图像拾取装置包括图像拾取透镜11,其中穿过图像拾取透镜11的光进入的微透镜阵列部分12和感测从微透镜阵列部分12发射的光的图像拾取装置13以及每个的焦距 构成微透镜阵列部分12的微透镜响应于所施加的电压是可变的。