公开(公告)号：US20070229982A1

公开(公告)日：2007-10-04

申请号：US11729826

申请日：2007-03-30

申请人： Yoshiaki Minakawa ,  Yasuyuki Sugi

发明人： Yoshiaki Minakawa ,  Yasuyuki Sugi

IPC分类号： G02B9/08

CPC分类号： G02B9/08 ,  G02B13/003

摘要： An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the object side of the first lens is 70 to 90 degrees. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the image side of the second lens is 70 to 90 degrees.

摘要翻译： 一种成像透镜单元，其从物体侧起依次包括具有在物体侧上具有凸面的弯月面形状的第一透镜，具有在像侧上具有凸面的弯月面形状的孔径光阑和第二透镜。 在第一透镜的物体侧的表面的透镜表面有效直径的范围内的切线角的最大值为70〜90度。 在第二透镜的图像侧的表面的透镜表面有效直径的范围内的切线角的最大值为70度至90度。

公开(公告)号：US07619836B2

公开(公告)日：2009-11-17

申请号：US12232801

申请日：2008-09-24

申请人： Yoshiaki Minakawa ,  Yasuyuki Sugi

发明人： Yoshiaki Minakawa ,  Yasuyuki Sugi

IPC分类号： G02B9/06 ,  G02B9/04 ,  G11B7/00

CPC分类号： G02B9/08 ,  G02B13/003

摘要： An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the object side of the first lens is 70 to 90 degrees. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the image side of the second lens is 70 to 90 degrees.

摘要翻译： 一种成像透镜单元，其从物体侧起依次包括具有在物体侧上具有凸面的弯月面形状的第一透镜，具有在像侧上具有凸面的弯月面形状的孔径光阑和第二透镜。 在第一透镜的物体侧的表面的透镜表面有效直径的范围内的切线角的最大值为70〜90度。 在第二透镜的图像侧的表面的透镜表面有效直径的范围内的切线角的最大值为70度至90度。

公开(公告)号：US20060018237A1

公开(公告)日：2006-01-26

申请号：US11183776

申请日：2005-07-19

申请人： Yasuyuki Sugi ,  Yoshiaki Minakawa ,  Mitsuhiro Miyauchi ,  Koichiro Wakabayashi

发明人： Yasuyuki Sugi ,  Yoshiaki Minakawa ,  Mitsuhiro Miyauchi ,  Koichiro Wakabayashi

IPC分类号： G11B7/00

CPC分类号： G02B27/0018

摘要： An optical pickup system for reading information of three kinds of optical recording media. The optical pickup system has a wavelength selective filter that includes an outer area for shielding one light beam of light beams having three kinds of wavelengths and an inner area for allowing all the light beams to pass through. The optical pickup system also has an objective lens that focuses each light beam having passed through the wavelength selective filter on each light recording medium. An optical head and an optical disk apparatus have the optical pickup system.

摘要翻译： 一种用于读取三种光学记录介质的信息的光学拾取系统。 光拾取系统具有波长选择滤光器，该滤波器包括用于屏蔽具有三种波长的一束光束的外部区域和用于允许所有光束通过的内部区域。 光学拾取系统还具有将通过波长选择滤光器的每个光束聚焦在每个光记录介质上的物镜。 光头和光盘装置具有光拾取系统。

公开(公告)号：US20060018234A1

公开(公告)日：2006-01-26

申请号：US11184004

申请日：2005-07-19

申请人： Yasuyuki Sugi ,  Yoshiaki Minakawa ,  Mitsuhiro Miyauchi ,  Koichiro Wakabayashi

发明人： Yasuyuki Sugi ,  Yoshiaki Minakawa ,  Mitsuhiro Miyauchi ,  Koichiro Wakabayashi

IPC分类号： G11B7/00

CPC分类号： G02B27/0018

摘要： An optical pickup system for reading information of three kinds of optical recording media. The optical pickup system has a wavelength selective filter that includes an outer area for shielding one light beam of light beams having three kinds of wavelengths and an inner area for allowing all the light beams to pass through. The optical pickup system also has an objective lens that focuses each light beam having passed through the wavelength selective filter on each light recording medium. An optical head and an optical disk apparatus have the optical pickup system.

摘要翻译： 一种用于读取三种光学记录介质的信息的光学拾取系统。 光拾取系统具有波长选择滤光器，该滤波器包括用于屏蔽具有三种波长的一束光束的外部区域和用于允许所有光束通过的内部区域。 光学拾取系统还具有将通过波长选择滤光器的每个光束聚焦在每个光记录介质上的物镜。 光头和光盘装置具有光拾取系统。

公开(公告)号：US20050094282A1

公开(公告)日：2005-05-05

申请号：US10947322

申请日：2004-09-23

申请人： Yoshiaki Minakawa ,  Tsuyoshi Maro

发明人： Yoshiaki Minakawa ,  Tsuyoshi Maro

IPC分类号： G02B27/14

CPC分类号： G02B27/145

摘要： The wavelength division multiplexer includes a single optical substrate or a plurality of optical substrates integrated together, on which the first optical filter and the second optical filter are placed. The center wavelengths of three wavelength bands, λ1, λ2, and λ3, satisfy: 0.92≦λ2/λ1≦1.08, and 0.20≦λ3/λ1≦0.92 or 1.08≦λ3/λ1≦5.00. The first optical filter combines or separates light of λ3 and two-wavelength multiplexed light of λ1 and λ2. The second optical filter combines or separates light of λ1 and light of λ2.

摘要翻译： 波分复用器包括集成在一起的单个光学基板或多个光学基板，其上放置有第一滤光器和第二滤光器。 三个波长带（λ1，λ2和λ3）的中心波长满足：0.92 <=λ2/λ1<= 1.08，0.20 <λ/λ1= 0.92或1.08λ3/ = 5.00。 第一光学滤波器组合或分离λ3的光和λ1和λ2的双波长复用光。第二光学滤波器组合或分离λ1的光和λ2的光。

公开(公告)号：US07389050B2

公开(公告)日：2008-06-17

申请号：US10941866

申请日：2004-09-16

申请人： Yoshiaki Minakawa ,  Tsuyoshi Maro

发明人： Yoshiaki Minakawa ,  Tsuyoshi Maro

IPC分类号： H04J14/02

CPC分类号： G02B6/29362 ,  G02B6/2938 ,  G02B27/145

摘要： For use in combining and/or splitting a 3-wavelength multiplexed light, in which if central wavelengths of the three bands are denoted as λ1, λ2 and λ3, in a relation that 0.92≦λ2/λ1≦1.08, 0.20≦λ3/λ1≦0.92 or 1.08≦λ3/λ1≦5.00, the wavelength multiplexing and demultiplexing device comprises two optical filters of different characteristics, supported by one of more optical substrates combined in a single package, wherein, when a 3-wavelength multiplexed light is led to a first filter A for splitting the 3-wavelength multiplexed light into light of a band of λ3 and a 2-wavelength multiplexed light of λ1 and λ2, and when the 2-wavelength multiplexed light is led to a second filter B for splitting the 2-wavelength multiplexed light into light of a band of λ1 and light of a band of λ2, an optical edge filter is used for the filter A and an optical band-pass filter is used for the filter B.

摘要翻译： 用于组合和/或分割三波长复用光，其中如果三个波段的中心波长被表示为λ1，λ2和λ3，则以0.92 <=λ2/λ1<= 1.08,0.20 < λ3/λ1<= 0.92或1.08 <=λ3/λ1<= 5.00，波长复用和解复用器件包括两个不同特性的滤光片，由单个封装中组合的多个光学基片之一支撑，其中当3- 波长复用光被引导到第一滤光器A，用于将3波长复用光分解成λ3的波段和λ1和λ2的2波长复用光的光，并且当将2波长复用光导向第二滤波器 用于将2波长复用光分解成λ1的波段和λ2波段的光的滤波器B，滤波器A使用光学边缘滤波器，对滤波器B使用光学带通滤波器。

公开(公告)号：US07079322B2

公开(公告)日：2006-07-18

申请号：US10947322

申请日：2004-09-23

申请人： Yoshiaki Minakawa ,  Tsuyoshi Maro

发明人： Yoshiaki Minakawa ,  Tsuyoshi Maro

IPC分类号： G02B27/14

CPC分类号： G02B27/145

摘要： The wavelength division multiplexer includes a single optical substrate or a plurality of optical substrates integrated together, on which the first optical filter and the second optical filter are placed. The center wavelengths of three wavelength bands, λ1, λ2, and λ3, satisfy: 0.92≦λ2/λ1≦1.08, and 0.20≦λ3/λ1≦0.92 or 1.08≦λ3/λ1≦5.00. The first optical filter combines or separates light of λ3 and two-wavelength multiplexed light of λ1 and λ2. The second optical filter combines or separates light of λ1 and light of λ2.

摘要翻译： 波分复用器包括集成在一起的单个光学基板或多个光学基板，其上放置有第一滤光器和第二滤光器。 三个波长带（λ1，λ2和λ3）的中心波长满足：0.92 <=λ2/λ1<= 1.08，0.20 <λ/λ1= 0.92或1.08λ3/ = 5.00。 第一光学滤波器组合或分离λ3的光和λ1和λ2的双波长复用光。 第二光学滤波器组合或分离λ1的光和λ2的光。

公开(公告)号：US07755998B2

公开(公告)日：2010-07-13

申请号：US11183776

申请日：2005-07-19

申请人： Yasuyuki Sugi ,  Yoshiaki Minakawa ,  Mitsuhiro Miyauchi ,  Koichiro Wakabayashi

发明人： Yasuyuki Sugi ,  Yoshiaki Minakawa ,  Mitsuhiro Miyauchi ,  Koichiro Wakabayashi

IPC分类号： G11B7/135

CPC分类号： G02B27/0018

摘要： An optical pickup system for reading information of three kinds of optical recording media. The optical pickup system has a wavelength selective filter that includes an outer area for shielding one light beam of light beams having three kinds of wavelengths and an inner area for allowing all the light beams to pass through. The optical pickup system also has an objective lens that focuses each light beam having passed through the wavelength selective filter on each light recording medium. An optical head and an optical disk apparatus have the optical pickup system.

摘要翻译： 一种用于读取三种光学记录介质的信息的光学拾取系统。 光拾取系统具有波长选择滤光器，该滤波器包括用于屏蔽具有三种波长的一束光束的外部区域和用于允许所有光束通过的内部区域。 光学拾取系统还具有将通过波长选择滤光器的每个光束聚焦在每个光记录介质上的物镜。 光学头和光盘装置具有光学拾取系统。

公开(公告)号：US20090153983A1

公开(公告)日：2009-06-18

申请号：US12314498

申请日：2008-12-11

申请人： Masaki Nakanishi ,  Yoshiaki Minakawa

发明人： Masaki Nakanishi ,  Yoshiaki Minakawa

IPC分类号： G02B13/18

CPC分类号： G02B13/18

摘要： An imaging lens unit includes, from an object side, a diaphragm, a first lens, and a second lens placed on an image side of the first lens. The first lens is a positive meniscus lens convex toward the object side, and at least one side of the first lens has an aspherical surface. The second lens is a meniscus lens convex toward the image side, and at least one side of the second lens has an aspherical surface. Further, a maximum value of an angle between a tangent to a surface on the image side of the second lens and a normal to an optical axis is in a range of 65° to 90° within an effective diameter of the second lens.

摘要翻译： 成像透镜单元包括物体侧的光阑，第一透镜和位于第一透镜的像侧的第二透镜。 第一透镜是朝向物体侧凸起的正弯月形透镜，并且第一透镜的至少一侧具有非球面。 第二透镜是向图像侧凸出的弯月透镜，并且第二透镜的至少一侧具有非球面。 此外，第二透镜的像侧的表面的切线与光轴的法线之间的角度的最大值在第二透镜的有效直径内在65°〜90°的范围内。

公开(公告)号：US07446958B2

公开(公告)日：2008-11-04

申请号：US11729826

申请日：2007-03-30

申请人： Yoshiaki Minakawa ,  Yasuyuki Sugi

发明人： Yoshiaki Minakawa ,  Yasuyuki Sugi

IPC分类号： G02B9/06 ,  G02B9/04 ,  G11B7/00

CPC分类号： G02B9/08 ,  G02B13/003

摘要： An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the object side of the first lens is 70 to 90 degrees. A maximal value of a tangent angle within a range of a lens surface effective diameter of the surface on the image side of the second lens is 70 to 90 degrees.

摘要翻译： 一种成像透镜单元，其从物体侧起依次包括具有在物体侧上具有凸面的弯月面形状的第一透镜，具有在像侧上具有凸面的弯月面形状的孔径光阑和第二透镜。 在第一透镜的物体侧的表面的透镜表面有效直径的范围内的切线角的最大值为70〜90度。 在第二透镜的图像侧的表面的透镜表面有效直径的范围内的切线角的最大值为70度至90度。