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    Optical pickup for optically reading/writing data including convergent and aberration correction optical systems
    1.
    发明授权
    Optical pickup for optically reading/writing data including convergent and aberration correction optical systems 失效
    用于光学读/写数据的光学拾取器，包括会聚和像差校正光学系统

    公开(公告)号：US07038995B2

    公开(公告)日：2006-05-02

    申请号：US10041068

    申请日：2001-11-01

    申请人： Kazuya Kitamura ,  Yukio Kurata

    发明人： Kazuya Kitamura ,  Yukio Kurata

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1353 ,  G02B9/12 ,  G02B13/0035 ,  G02B13/004 ,  G02B13/0055 ,  G02B13/006 ,  G02B13/0065 ,  G02B27/0068 ,  G11B7/1378 ,  G11B7/13927

    摘要： A lightweight, highly reliable optical pickup including a singlet objective lens is offered by correcting coma aberrations which adversely affect properties of the objective lens having an increased NA. A convergent optical system is composed of a singlet objective lens with a NA of 0.75 or more and includes an aberration-correcting optical system which corrects coma aberrations due to an inclination or shift of central axes of both surfaces of the objective lens or an inclination of the objective lens or the optical storage medium to an optical axis of the optical pickup.

    摘要翻译： 通过校正对具有增加的NA的物镜的性质产生不利影响的彗形像差来提供包括单重物镜的轻质，高度可靠的光学拾取器。 收敛光学系统由NA为0.75以上的单重物镜构成，包括像差校正光学系统，其校正由于物镜两面的中心轴的倾斜或偏移引起的彗形像差或倾斜度 物镜或光学存储介质到光学拾取器的光轴。

    Optical pickup device
    2.
    发明授权
    Optical pickup device 有权
    光学拾取装置

    公开(公告)号：US06438089B1

    公开(公告)日：2002-08-20

    申请号：US09573626

    申请日：2000-05-17

    申请人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    发明人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    IPC分类号： G11B700

    CPC分类号： G11B7/1365 ,  G11B7/1374 ,  G11B7/1398 ,  G11B2007/13727

    摘要： In an optical pickup device, the numerical aperture (NA) of an objective lens is set at 0.7 or more, and the ellipticity of polarized light of a light beam which is incident upon the objective lens is set to be larger than (1.4×NA)−0.7. According to the structure, an optical pickup device which can prevent deterioration of the jitter and crosstalk characteristics, for example, due to oval deformation of a beam spot can be provided.

    摘要翻译： 在光拾取装置中，物镜的数值孔径（NA）设定为0.7以上，入射到物镜的光束的偏振光的椭圆率设定为大于（1.4×NNA） -0.7。 根据该结构，可以提供能够防止例如由于光斑的椭圆形变形引起的抖动和串扰特性的劣化的光学拾取装置。

    Optical pickup device and optical recording medium
    3.
    发明授权
    Optical pickup device and optical recording medium 有权
    光拾取装置和光记录介质

    公开(公告)号：US06388822B1

    公开(公告)日：2002-05-14

    申请号：US09597652

    申请日：2000-06-19

    申请人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    发明人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    IPC分类号： G02B904

    CPC分类号： G11B7/1374 ,  G02B1/11 ,  G11B7/13922 ,  G11B7/1398 ,  G11B7/24 ,  G11B2007/13727

    摘要： An optical pickup device which includes an objective lens having a numerical aperture of 0.7 or more collects light emitted from a light source and irradiates an optical recording medium. The objective lens and an antireflection film formed thereon are set so that the intensity of light incident on the outermost rim of the objective lens is 45% or more and 80% or less of the intensity of incident light from the light source to the center of the objective lens. According to the configuration, it is possible to provide an optical pickup device including a high NA objective lens which can suppress a reduction in the light amount at the lens rim.

    摘要翻译： 包括数值孔径为0.7以上的物镜的光学拾取装置收集从光源发射的光并照射光记录介质。 在其上形成的物镜和抗反射膜被设定为使得入射在物镜的最外边缘上的光的强度为从光源到中心的入射光强度的45％以上且80％以下 物镜。 根据该结构，能够提供能够抑制透镜边缘的光量减少的高NA物镜的光拾取装置。

    Exposing apparatus and exposing method for microlens array
    5.
    发明授权
    Exposing apparatus and exposing method for microlens array 失效

    公开(公告)号：US06822799B2

    公开(公告)日：2004-11-23

    申请号：US10650599

    申请日：2003-08-27

    申请人： Kazuya Kitamura ,  Kuniaki Okada ,  Yoshihiro Sekimoto ,  Yukio Kurata ,  Hiroshi Nakanishi

    发明人： Kazuya Kitamura ,  Kuniaki Okada ,  Yoshihiro Sekimoto ,  Yukio Kurata ,  Hiroshi Nakanishi

    IPC分类号： G02B2710

    CPC分类号： G03B21/208

    摘要： An exposing apparatus for a microlens array allows for easy alignment and attains high accuracy. An exposing method for a microlens array attains high accuracy and high light efficiency. The exposing apparatus for a microlens array includes a micro fly-eye lens for converting a light beam from a light source into a secondary point light source, a transmittance distribution mask for adjusting the luminance of the light of the secondary point light source, and a collimator lens for converting the light of adjusted luminance into a parallel light beam and for guiding the parallel light beam, via a first microlens array which is formed in advance, to a photosensitive resin layer to be a second microlens array. The light emitted from the light source is transmitted through the micro fly-eye lens, the transmittance distribution mask, and the collimator lens. The light is then adjusted to a desired luminance to expose the photosensitive resin of a microlens substrate.

    Objective lens, optical pickup-device equipped with same and assembling method of same
    6.
    发明授权
    Objective lens, optical pickup-device equipped with same and assembling method of same 失效
    物镜，配备相同的光学拾音装置及其装配方法

    公开(公告)号：US06741406B2

    公开(公告)日：2004-05-25

    申请号：US09875695

    申请日：2001-06-06

    申请人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    发明人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    IPC分类号： G02B702

    CPC分类号： G02B7/021 ,  G02B7/022 ,  G02B7/025 ,  G02B13/18 ,  G11B7/1374 ,  G11B7/22 ,  G11B2007/13727

    摘要： An objective lens is made up of a light-source-side lens and a medium-side lens wherein at least either one of rim portions of respective opposing surfaces of the light-source-side lens and the medium-side lens forms a rise-up section projected towards the other lens, the rim portion which forms the rise-up section and the rim portion of the other lens at least partially contact one another, and these two lens are fixed together by an adhesive resin layer formed in a spacing between the respective rim portions. With the foregoing structure, an objective lens made up of a pair of lenses which has high rigidity as a whole and is capable of high speed recording and reproducing by suppressing adverse effects of resonance can be realized.

    摘要翻译： 物镜由光源侧透镜和中等侧透镜构成，其中光源侧透镜和中等侧透镜的相对表面的边缘部分中的至少一个形成上升透镜， 向另一个透镜突出的凸缘部分，形成上升部分的边缘部分和另一透镜的边缘部分至少部分地彼此接触，并且这两个透镜通过以间隔之间的间隔形成的粘合树脂层固定在一起 相应的边缘部分。 利用上述结构，可以实现由一对透镜组成的物镜，该透镜具有高刚性并且能通过抑制共振的不利影响而进行高速记录和再现。

    Method of microlens array and projection type of liquid crystal display apparatus
    8.
    发明授权
    Method of microlens array and projection type of liquid crystal display apparatus 失效
    微透镜阵列和投影型液晶显示装置的方法

    公开(公告)号：US07031064B2

    公开(公告)日：2006-04-18

    申请号：US10672343

    申请日：2003-09-25

    申请人： Kazuya Kitamura ,  Yukio Kurata ,  Yoshihiro Sekimoto ,  Kuniaki Okada ,  Noboru Fujita ,  Yukiko Nagasaka ,  Hiroshi Nakanishi

    发明人： Kazuya Kitamura ,  Yukio Kurata ,  Yoshihiro Sekimoto ,  Kuniaki Okada ,  Noboru Fujita ,  Yukiko Nagasaka ,  Hiroshi Nakanishi

    IPC分类号： G02B27/10

    CPC分类号： G02F1/133526 ,  B29D11/00278 ,  G02B3/0012 ,  G02B3/0068 ,  G02B5/045

    摘要： An object of the invention is to provide a method of manufacturing a microlens array and a projection-type liquid crystal display apparatus which can increase the efficiency of use of light, facilitate a method of manufacturing a microlens array and reduce the cost of equipment. By an operation of only irradiating a first lens with parallel light which has an intensity distribution corresponding to the shape of a second lens and irradiating an ultraviolet curing resin layer with transmission light, the first and second lenses are placed with a high alignment accuracy in a mutual positional relation thereof. By irradiating the first lens with the parallel light, it becomes possible to uniformly expose a broad area, and it becomes possible to expose by the wafer.

    摘要翻译： 本发明的目的是提供一种制造微透镜阵列的方法和能够提高光的使用效率的投影型液晶显示装置，有助于制造微透镜阵列的方法并降低设备的成本。 通过仅对具有与第二透镜的形状对应的强度分布的平行光照射第一透镜并用透射光照射紫外线固化树脂层的操作，将第一透镜和第二透镜以高对准精度放置在 相互位置关系。 通过用平行光照射第一透镜，可以均匀地曝光大面积，并且可以通过晶片曝光。

    Optical pickup device
    9.
    发明授权
    Optical pickup device 失效
    光学拾取装置

    公开(公告)号：US06937381B2

    公开(公告)日：2005-08-30

    申请号：US10483859

    申请日：2002-08-13

    申请人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    发明人： Kazuya Kitamura ,  Yukio Kurata ,  Tetsuo Iwaki

    IPC分类号： G11B7/1369 ,  G02F1/10 ,  G11B7/00 ,  G11B7/135

    CPC分类号： G11B7/1356 ,  G11B7/1359 ,  G11B7/1369 ,  G11B7/13927

    摘要： An optical pickup device which includes (A) a light source, and (B) an objective lens and an aberration correcting optical system which are located in a light path from the light source to an optical recording medium is so arranged that the aberration correcting optical system imparts a phase distribution to luminous flux which transmits the aberration correcting optical system, so as to correct a predetermined aberration; and an amount of phase of the aberration correcting optical system when correcting the aberration is set in such a manner that the aberration correcting optical system imparts a larger amount of phase at a position farther from a point where the aberration correcting optical system crosses an optical axis of light emitted from the light source. With this, it is possible to increase a tolerance for the center misalignment of the objective lens so as to reduce aberration caused by the center misalignment.

    摘要翻译： 一种光拾取装置，其包括（A）光源和（B）物镜和像差校正光学系统，其位于从光源到光记录介质的光路中，使得像差校正光学 系统对透射像差校正光学系统的光通量施加相位分布，以校正预定像差; 并且当校正像差时像差校正光学系统的相位量被设置为使得像差校正光学系统在比像差校正光学系统穿过光轴的点更远的位置处施加更大量的相位 从光源发出的光。 由此，可以增加对物镜的中心未对准的公差，以减少由中心未对准引起的像差。