公开(公告)号：US20090196149A1

公开(公告)日：2009-08-06

申请号：US11663431

申请日：2006-11-06

Applicant: Yuichi Atarashi ,  Kohei Ota ,  Junji Hashimura ,  Kiyono Ikenaka

Inventor： Yuichi Atarashi ,  Kohei Ota ,  Junji Hashimura ,  Kiyono Ikenaka

IPC: G11B7/00

CPC classification number: G11B7/1374 ,  G11B7/08517 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B7/1398 ,  G11B2007/0006 ,  G11B2007/13727

Abstract: In order to provide an optical pickup apparatus that has a relatively simple configuration and that can carry out recording and/or reproduction of information in a s compatible manner for different optical information storage medium, the optical surface of the first objective lens OBJ1 is formed only by a refracting surface, and hence it is possible to form it at a low cost even if it is made of glass. In addition, said first objective lens OBJ1 can be designed by optimizing it for the first light flux with the wavelength λ1 and the protective substrate t1 of said first optical disk OD1. On the other hand, while the second objective lens OBJ2 is used commonly for both the first light flux with a wavelength λ1 and the second light flux with a wavelength λ2, when the protective substrate t2 of the second optical disk OD2 and the protective substrate t3 of the third optical disk OD3 are the same, there is no need to consider the difference in the thickness of the protective substrate, and hence the design is easy and it is possible to produce at a low cost.

Abstract translation: 为了提供具有相对简单的配置并且可以以不同的光学信息存储介质的兼容方式进行信息的记录和/或再现的光学拾取装置，第一物镜OBJ1的光学表面仅由 折射表面，因此即使由玻璃制成也可以低成本地形成。 此外，所述第一物镜OBJ1可以通过对具有波长λ1的第一光束和所述第一光盘OD1的保护基板t1进行优化来设计。 另一方面，当第二物镜OBJ2同时用于具有波长λ1的第一光通量和波长λ2的第二光通量时，当第二光盘OD2的保护基板t2和保护基板t3 的第三光盘OD3是相同的，不需要考虑保护性基板的厚度的差异，因此设计容易，并且可以以低成本生产。

公开(公告)号：US20050213472A1

公开(公告)日：2005-09-29

申请号：US11082550

申请日：2005-03-17

Applicant: Kiyono Ikenaka ,  Junji Hashimura

Inventor： Kiyono Ikenaka ,  Junji Hashimura

IPC: G02B5/18 ,  G02B13/00 ,  G02B13/18 ,  G11B7/00 ,  G11B7/125 ,  G11B7/127 ,  G11B7/135 ,  G11B7/1367 ,  G11B7/1376 ,  G11B7/1392

CPC classification number: G11B7/1367 ,  G11B7/127 ,  G11B7/1376 ,  G11B7/13922 ,  G11B2007/0006

Abstract: This invention provides an optical element which has an optical surface in which a first light beam having a wavelength λx and a second light beam having a wavelength λy, which are emitted from light sources, become incident, including a diffraction structure in which a plurality of zone portions are formed, the zone portions being arranged in a radial direction about an optical axis and forming one period by a plurality of zones formed into a staircase shape divided by steps in a section including the optical axis, wherein the plurality of zone portions of said diffraction structure include a first zone portion and a second zone portion whose numbers of zones in one period are different, and of the plurality of zones which form one period, the zones except the zone which gives a largest optical path length to the passing second light beam have at least two different widths in a direction perpendicular to the optical axis, and of the plurality of zones which form the zone portion, two zones which are adjacent to each other via a step are designed to give no actual phase difference to the first light beam to pass the first light beam and give a phase difference to the second light beam to generate a diffraction effect, and an optical pickup device having the optical element.

Abstract translation: 本发明提供了一种光学元件，其具有光学表面，其中具有从光源发射的具有波长长度的第一光束和具有波长长度的第二光束入射，包括衍射结构，其中多个 形成区域部分，沿着光轴的径向布置，并且由形成为包括光轴的部分中的台阶形成为阶梯状的多个区域形成一个周期，其中，多个区域部分 所述衍射结构包括第一区域部分和一个周期中的区域数量不同的第二区域部分，以及形成一个周期的多个区域，除了向通过的第二个区域给出最大光程长度的区域之外的区域 光束在垂直于光轴的方向和形成区域por的多个区域中具有至少两个不同的宽度 通过台阶彼此相邻的两个区域被设计成不向第一光束提供实际的相位差以通过第一光束并且给予第二光束的相位差以产生衍射效应，并且 具有光学元件的光学拾取装置。

公开(公告)号：US20050207315A1

公开(公告)日：2005-09-22

申请号：US11080452

申请日：2005-03-16

Applicant: Eiji Nomura ,  Junji Hashimura ,  Tohru Kimura ,  Kazutaka Noguchi

Inventor： Eiji Nomura ,  Junji Hashimura ,  Tohru Kimura ,  Kazutaka Noguchi

IPC: G11B7/00 ,  G11B7/135

CPC classification number: G11B7/13922 ,  G11B7/1367 ,  G11B2007/0006

Abstract: An objective optical system for use in an optical pickup apparatus, comprises an aberration correcting element having at least two phase structures of a first and second phase structures; and a light converging element to converge the first light flux emitted from the aberration correcting element onto an information recording plane of the first optical disk and to converge the second light flux emitted from the aberration correcting element onto an information recording plane of the second optical disk; wherein the second phase structure refrains at least one of a change in the light converging characteristic of the objective optical system due to a change in the wavelength of the first light flux and a change in the light converging characteristic of the objective optical system due to a change in environmental temperature.

Abstract translation: 一种用于光学拾取装置的物镜光学系统，包括具有第一和第二相结构的至少两个相位结构的像差校正元件; 以及聚光元件，用于将从像差校正元件发射的第一光束会聚到第一光盘的信息记录面上，并将从像差校正元件发射的第二光束会聚到第二光盘的信息记录面上 ; 其特征在于，所述第二相位结构由于第一光束的波长的变化和物镜光学系统的会聚特性的变化而导致物镜光学系统的会聚特性的变化中的至少一个， 环境温度变化。

公开(公告)号：US06327440B1

公开(公告)日：2001-12-04

申请号：US08896752

申请日：1997-07-18

Applicant: Nobuyuki Taniguchi ,  Hideo Kajita ,  Yujiro Mima ,  Junji Hashimura ,  Nobuya Miki ,  Masayuki Ikemura

Inventor： Nobuyuki Taniguchi ,  Hideo Kajita ,  Yujiro Mima ,  Junji Hashimura ,  Nobuya Miki ,  Masayuki Ikemura

IPC: G03B1700

CPC classification number: G03B1/50

Abstract: A camera capable of taking pictures selectively in a standard or full size frame and a panorama frame having a reduced vertical dimension. This camera includes vertically movable light-shielding members for partly light-shielding an exposure range of the standard frame to set an exposure range of the panorama frame. When the panorama frame is selected, a warning is given on a display provided on the camera body to the effect that a date and other photographic information cannot be recorded on pictures taken in the panorama frame. The shutter of the camera includes an electronic device for detecting an amount of light traveling from a photographic object to which light is flashed. Output of this device is used for suitably controlling exposure for photography in the standard and panorama frames.

Abstract translation: 能够以标准或全尺寸画面选择性地拍摄照片的相机和具有减小的垂直尺寸的全景画面。 该照相机包括可垂直移动的遮光构件，用于对标准框架的曝光范围进行部分遮光以设定全景框架的曝光范围。 当选择全景图像时，在相机机身上提供的显示器上给出警告，使得在全景帧中拍摄的照片上不能记录日期和其他照片信息。 照相机的快门包括用于检测从闪光的照相物体行进的光量的电子设备。 该设备的输出用于适当控制标准和全景图像中的摄影曝光。

公开(公告)号：US06304361B1

公开(公告)日：2001-10-16

申请号：US09608554

申请日：2000-06-30

Applicant: Junji Hashimura

Inventor： Junji Hashimura

IPC: G02B2608

CPC classification number: G02B13/0005 ,  G02B26/105

Abstract: A scanning optical system has, from the object side, an object-side lens unit, a mirror, and an image-side lens unit, and scans a object by rotating the mirror while forming an image of the object on a one-dimensional line sensor. Either the object-side lens unit or the image-side lens unit includes at least one aspherical surface that fulfills a defined condition in a range that fulfills a defined condition.

Abstract translation: 扫描光学系统从物体侧具有物体侧透镜单元，反射镜和图像侧透镜单元，并且通过旋转镜来扫描物体，同时在一维线上形成物体的图像 传感器。 物体侧透镜单元或图像侧透镜单元包括在满足限定条件的范围内满足限定条件的至少一个非球面。

公开(公告)号：US5786941A

公开(公告)日：1998-07-28

申请号：US499297

申请日：1995-07-07

Applicant: Minoru Kuwana ,  Hitoshi Hagimori ,  Junji Hashimura

Inventor： Minoru Kuwana ,  Hitoshi Hagimori ,  Junji Hashimura

IPC: G02B7/10 ,  G02B15/14

CPC classification number: G02B7/102

Abstract: A zoom lens system includes a plurality of lens units. First to third focal length zones are set according to the focal length. During focusing, in the first focal length zone, the lens units are moved at a first constant ratio, and in the third focal length zone, the lens units are moved at a second constant ratio which is different from the first constant ratio. In the second focal length zone, the movement ratio of the lens units varies according to the focal length.

Abstract translation: 变焦透镜系统包括多个透镜单元。 根据焦距设置第一至第三焦距区域。 在聚焦期间，在第一焦距区域中，透镜单元以第一恒定比例移动，并且在第三焦距区域中，透镜单元以不同于第一恒定比例的第二恒定比例移动。 在第二焦距区域中，透镜单元的移动比根据焦距而变化。

公开(公告)号：US5754899A

公开(公告)日：1998-05-19

申请号：US424102

申请日：1995-04-19

Applicant: Nobuyuki Taniguchi ,  Hideo Kajita ,  Yujiro Mima ,  Junji Hashimura ,  Nobuya Miki ,  Masayuki Ikemura

Inventor： Nobuyuki Taniguchi ,  Hideo Kajita ,  Yujiro Mima ,  Junji Hashimura ,  Nobuya Miki ,  Masayuki Ikemura

IPC: G03B1/50 ,  G03B7/097 ,  G03B17/00 ,  G03B17/24

CPC classification number: G03B1/50

Abstract: A camera capable of taking pictures selectively in a standard or full size frame and a panorama frame having a reduced vertical dimension. This camera includes vertically movable light-shielding members for partly light-shielding an exposure range of the standard frame to set an exposure range of the panorama frame. When the panorama frame is selected, a warning is given on a display provided on the camera body to the effect that a date and other photographic information cannot be recorded on pictures taken in the panorama frame. The shutter of the camera includes an electronic device for detecting an amount of light traveling from a photographic object to which light is flashed. Output of this device is used for suitably controlling exposure for photography in the standard and panorama frames.

Abstract translation: 能够以标准或全尺寸画面选择性地拍摄照片的相机和具有减小的垂直尺寸的全景画面。 该照相机包括可垂直移动的遮光构件，用于对标准框架的曝光范围进行部分遮光以设定全景框架的曝光范围。 当选择全景图像时，在相机机身上提供的显示器上给出警告，使得在全景帧中拍摄的照片上不能记录日期和其他照片信息。 照相机的快门包括用于检测从闪光的照相物体行进的光量的电子设备。 该设备的输出用于适当控制标准和全景图像中的摄影曝光。

公开(公告)号：US20090262635A1

公开(公告)日：2009-10-22

申请号：US12493669

申请日：2009-06-29

Applicant: Tohru Kimura ,  Junji Hashimura ,  Yuichi Atarashi ,  Toshiyuki Kojima

Inventor： Tohru Kimura ,  Junji Hashimura ,  Yuichi Atarashi ,  Toshiyuki Kojima

IPC: G11B7/135 ,  G02B3/00

CPC classification number: G11B7/1374 ,  G11B7/1378 ,  G11B2007/0006 ,  G11B2007/13727

Abstract: An objective lens system for an optical pickup apparatus, includes in order from an object side: a first lens group having negative paraxial power P1 (mm−1); and a second lens group having positive paraxial power P2 (mm−1) for converging a light flux emitted from the first lens group on an information recording surface of an optical information recording medium.

Abstract translation: 一种用于光学拾取装置的物镜系统，从物体侧依次包括具有负近轴功率P1（mm-1）的第一透镜组; 以及具有正的近轴光焦度P2（mm-1）的第二透镜组，用于将从第一透镜组发射的光束会聚在光学信息记录介质的信息记录表面上。

公开(公告)号：US20090196147A1

公开(公告)日：2009-08-06

申请号：US11663299

申请日：2006-11-06

Applicant: Yuichi Atarashi ,  Kohei Ota ,  Junji Hashimura ,  Kiyono Ikenaka

Inventor： Yuichi Atarashi ,  Kohei Ota ,  Junji Hashimura ,  Kiyono Ikenaka

IPC: G11B7/00

CPC classification number: G11B7/1374 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1369 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B7/1398 ,  G11B2007/0006

Abstract: An optical pickup apparatus for information recording and/or reproduction on different optical information recording media with compatibility among these media, the optical surface of a first objective lens and the optical surface of a second objective lens are formed only of a refractive surface. The second objective lens is used in common for the first light flux with a wavelength of λ1 and the second light flux with a wavelength of λ2, but in the case where the protective substrate t2 of the second optical information recording medium and the protective substrate t3 of the third optical information recording medium are the same, it is not necessary to take the difference in thickness of the protective substrate into consideration. Chromatic aberration based on the difference in wavelength between the first light flux and the second light flux can be corrected by displacing the second coupling lens.

Abstract translation: 用于在这些介质之间具有兼容性的不同光学信息记录介质上的信息记录和/或再现的光学拾取装置，第一物镜的光学表面和第二物镜的光学表面仅由折射表面形成。 第二物镜用于波长为λ1的第一光束和波长为λ2的第二光通量，但是在第二光学信息记录介质和保护基板t3的保护基板t2的情况下 第三光信息记录介质的厚度相同时，不需要考虑保护基板的厚度差。 可以通过移动第二耦合透镜来校正基于第一光束和第二光束之间的波长差的色像差。

公开(公告)号：US07525879B2

公开(公告)日：2009-04-28

申请号：US11076232

申请日：2005-03-10

Applicant: Mitsuru Mimori ,  Junji Hashimura ,  Kiyono Ikenaka

Inventor： Mitsuru Mimori ,  Junji Hashimura ,  Kiyono Ikenaka

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An objective optical element for use in an optical pickup apparatus first-third light sources emitting first-third light fluxes and a light converging optical system, includes a first optical path difference providing structure for providing an optical path difference which provides a substantial phase change to the third light flux and does not provide a substantial phase change to the first and second light fluxes; and a second optical path difference providing structure for providing an optical path difference to the first light flux, the second light flux and the third light flux, wherein the objective optical element converges the first-third light fluxes through the protective layers with the thicknesses t1-t3 onto an information recording surface of the first-third optical information media respectively.

Abstract translation: 一种用于光拾取装置的发射第一和第三光束的第一和第三光源的物镜光学元件包括：第一光程差提供结构，用于提供光程差，其提供实质的相位变化 第三光束并且不提供对第一和第二光束的实质相位变化; 以及用于向第一光束，第二光束和第三光束提供光路差的第二光程差提供结构，其中物镜光学元件使第一至第三光束通过保护层会聚，厚度为t1 -t3分别在第一至第三光学信息介质的信息记录表面上。