公开(公告)号：US08331045B2

公开(公告)日：2012-12-11

申请号：US12837038

申请日：2010-07-15

申请人： Tetsuya Suzuki ,  Toshiaki Takano ,  Tomokazu Tokunaga

发明人： Tetsuya Suzuki ,  Toshiaki Takano ,  Tomokazu Tokunaga

IPC分类号： G02B9/00

CPC分类号： G02B13/006

摘要： A cemented optical element includes a convex lens and a concave lens. The convex lens has a first convex surface and a second convex surface that are rotationally symmetric with respect to an optical axis. The convex lens has an edge with a thickness of substantially zero. The concave lens has a concave surface bonded to the first convex surface of the convex lens. Preferably, the peripheral portion of the concave lens extends radially outwardly beyond the convex lens to the extent that it is located within an area surrounded by an extension zone of the second convex surface of the convex lens.

摘要翻译： 胶合光学元件包括凸透镜和凹透镜。 凸透镜具有相对于光轴旋转对称的第一凸面和第二凸面。 凸透镜具有基本上为零的厚度的边缘。 凹透镜具有与凸透镜的第一凸面接合的凹面。 优选地，凹透镜的周边部分径向向外延伸超出凸透镜，使其位于由凸透镜的第二凸表面的延伸区域包围的区域内。

公开(公告)号：US07885018B2

公开(公告)日：2011-02-08

申请号：US12121155

申请日：2008-05-15

申请人： Tetsuya Suzuki ,  Tomokazu Tokunaga

发明人： Tetsuya Suzuki ,  Tomokazu Tokunaga

IPC分类号： G02B9/00

CPC分类号： C03B11/08 ,  C03B2215/406 ,  C03B2215/49 ,  C03B2215/72 ,  G02B13/0025 ,  G02B13/006 ,  Y02P40/57

摘要： A second optical element is bonded to a first optical element by forming the second optical element larger in diameter than the first optical element by pressing a second optical element material against the first optical element under a condition free from restriction to at least part of the second optical element material in the direction orthogonal to a direction in which the second optical element material is pressed.

摘要翻译： 第二光学元件通过形成直径大于第一光学元件的第二光学元件，通过在不受限制的条件下将第二光学元件材料压靠在第一光学元件上而与第一光学元件接合到第二光学元件的至少一部分 光学元件材料在与第二光学元件材料被按压的方向正交的方向上。

公开(公告)号：US20100321801A1

公开(公告)日：2010-12-23

申请号：US12820763

申请日：2010-06-22

申请人： Tomokazu TOKUNAGA ,  Tetsuya SUZUKI ,  Toshiaki TAKANO

发明人： Tomokazu TOKUNAGA ,  Tetsuya SUZUKI ,  Toshiaki TAKANO

IPC分类号： G02B11/00

CPC分类号： G02B7/025 ,  G02B3/00

摘要： The present invention provides a cemented optical element including: a first optical element having a concave surface; a second optical element having a convex surface facing the concave surface; and an adhesive layer for bonding the convex surface to the concave surface. The concave surface and the convex surface are curved surfaces parallel to each other, with curvature centers thereof coinciding with each other on an optical axis. Thereby, the cemented optical element with high shape accuracy can be obtained.

摘要翻译： 本发明提供一种胶合光学元件，包括：具有凹面的第一光学元件; 具有面向所述凹面的凸面的第二光学元件; 以及用于将凸面粘合到凹面的粘合剂层。 凹面和凸面是彼此平行的弯曲表面，其曲率中心在光轴上彼此重合。 由此，能够得到高精度的胶结光学元件。

公开(公告)号：US07764446B2

公开(公告)日：2010-07-27

申请号：US12121227

申请日：2008-05-15

申请人： Tetsuya Suzuki ,  Tomokazu Tokunaga

发明人： Tetsuya Suzuki ,  Tomokazu Tokunaga

IPC分类号： G02B9/00 ,  C03B11/02 ,  C03B23/00 ,  C03B29/00

CPC分类号： G02B13/0025 ,  G02B13/006 ,  G11B2007/13727

摘要： In a bonded optical element, a second optical element is bonded to a first optical element by forming the second optical element by heating and pressing against the first optical element a second optical element material. The first optical element is a concave lens. A bonded face of an intermediate portion between a lens portion and an edge portion of the first optical element is substantially in an R shape in section.

摘要翻译： 在粘结光学元件中，通过对第一光学元件进行加热和压制而形成第二光学元件来形成第二光学元件，将第二光学元件接合到第一光学元件。 第一光学元件是凹透镜。 第一光学元件的透镜部分和边缘部分之间的中间部分的接合面基本上是R形截面。

公开(公告)号：US06718799B2

公开(公告)日：2004-04-13

申请号：US10358468

申请日：2003-02-04

申请人： Kazuaki Takagi ,  Kunio Hibino ,  Tomokazu Tokunaga ,  Fujio Okuyama ,  Minoru Onoda

发明人： Kazuaki Takagi ,  Kunio Hibino ,  Tomokazu Tokunaga ,  Fujio Okuyama ,  Minoru Onoda

IPC分类号： C03B1116

CPC分类号： C03B11/12 ,  C03B11/082 ,  C03B11/088 ,  C03B2215/41 ,  C03B2215/44 ,  C03B2215/46 ,  C03B2215/65

摘要： A glass material (4) is placed in a forming die including a pair of upper and lower dies (1, 2) and a control member (3) for controlling the space between the upper and the lower die, and then heated, softened, and molded by pressure into a glass substrate in the shape of a parallel plate. The amount of thermal contraction of the control member is smaller than that of the glass material. Therefore, the glass substrate is released from the die when cooled after molding. The present invention can provide a glass substrate that is excellent in smoothness and form accuracy of the surface, and that is suitable for recording media such as magnetic disks that are inexpensive and suitable for mass production.

摘要翻译： 将玻璃材料（4）放置在包括一对上模具和下模具（1）和成形模具（3）的成形模具中，用于控制上模和下模之间的空间，然后加热，软化， 并通过压力成型为平行板形状的玻璃基板。 控制构件的热收缩量小于玻璃材料的热收缩量。 因此，在成型后冷却时，玻璃基板从模具中脱模。 本发明可以提供一种玻璃基板，该玻璃基板的表面的平滑度和形状精度优异，适用于记录便宜且适合批量生产的诸如磁盘的介质。

公开(公告)号：US4566048A

公开(公告)日：1986-01-21

申请号：US423212

申请日：1982-09-24

申请人： Tomokazu Tokunaga ,  Masataka Izaki ,  Jirou Kajino ,  Toshibumi Kamiyama

发明人： Tomokazu Tokunaga ,  Masataka Izaki ,  Jirou Kajino ,  Toshibumi Kamiyama

IPC分类号： G11B25/06 ,  G11B15/32 ,  G03B1/04

CPC分类号： G11B25/066

摘要： A tape cassette adapter has a compact cassette, the magnetic tape of which is drawn out of the compact cassette by the movement of a tape drawing member from an inoperative position to an operative position due to movement in a single direction by a slide member. The tape is wound back onto a take-up reel of the compact cassette by a rotating member due to movement of the slide member in the reverse direction, while the tape drawing member returns from the operative position to the inoperative position.

摘要翻译： 盒式磁带适配器具有小型盒式磁带，其磁带由于通过滑动构件沿着单一方向的移动而将磁带引导构件从非工作位置移动到操作位置而从小型盒中拉出。 由于滑动构件沿相反方向的移动，磁带通过旋转构件被卷回到小型盒的卷带盘上，同时带材构件从操作位置返回到不工作位置。

公开(公告)号：US20130010362A1

公开(公告)日：2013-01-10

申请号：US13539636

申请日：2012-07-02

申请人： Tomokazu TOKUNAGA ,  Toshiaki TAKANO ,  Koji FUJII ,  Tetsuya SUZUKI

发明人： Tomokazu TOKUNAGA ,  Toshiaki TAKANO ,  Koji FUJII ,  Tetsuya SUZUKI

IPC分类号： G02B27/42

CPC分类号： B29D11/0073 ,  B29C39/10 ,  B29D11/00769 ,  G02B5/1895 ,  G02B27/4205

摘要： A diffractive optical element includes a first optical member, a second optical member, and a third optical member stacked on each other in this order in an optical axis direction. A diffractive surface including a plurality of raised parts is formed at an interface between the first and second optical members. The first and third optical members contact each other at part other than the raised parts.

摘要翻译： 衍射光学元件包括沿光轴方向依次堆叠的第一光学构件，第二光学构件和第三光学构件。 在第一和第二光学构件之间的界面处形成包括多个凸起部分的衍射面。 第一和第三光学构件在凸起部分之外的部分彼此接触。

公开(公告)号：US20120327514A1

公开(公告)日：2012-12-27

申请号：US13530222

申请日：2012-06-22

申请人： Toshiaki TAKANO ,  Tomokazu TOKUNAGA ,  Tetsuya SUZUKI ,  Koji FUJII

发明人： Toshiaki TAKANO ,  Tomokazu TOKUNAGA ,  Tetsuya SUZUKI ,  Koji FUJII

IPC分类号： G02B5/18

CPC分类号： B29D11/0073 ,  B29C39/10 ,  B29D11/00769 ,  G02B5/1895 ,  G02B27/4205

摘要： A diffractive optical element includes a first optical member, a second optical member, and a third optical member stacked on each other in this order. A diffractive surface including a plurality of raised parts is formed at an interface between the first and second optical members. The third optical member contacts at least one of the raised parts.

摘要翻译： 衍射光学元件包括依次堆叠的第一光学构件，第二光学构件和第三光学构件。 在第一和第二光学构件之间的界面处形成包括多个凸起部分的衍射面。 第三光学构件接触至少一个凸起部分。

公开(公告)号：US20110019286A1

公开(公告)日：2011-01-27

申请号：US12840702

申请日：2010-07-21

申请人： Toru NANBA ,  Tetsuya SUZUKI ,  Toshiaki Takano ,  Tomokazu TOKUNAGA

发明人： Toru NANBA ,  Tetsuya SUZUKI ,  Toshiaki Takano ,  Tomokazu TOKUNAGA

IPC分类号： G02B1/00 ,  C03B23/023 ,  G02B3/00

CPC分类号： C03C3/068 ,  C03B2215/48 ,  C03B2215/49 ,  G02B3/02

摘要： A concave lens as an optical component is made of glass containing 20 to 22% of B2O3, 30 to 40% of La2O3, and 19 to 25% of ZnO, expressed as wt %. The concave lens has a thickness t1 in its center portion of 0.5 mm or less, and a ratio (W/t1) of a diameter W with respect to the thickness t1 of 24 or more. The concave lens can be produced suitably by press forming.

公开(公告)号：US07589923B2

公开(公告)日：2009-09-15

申请号：US11792485

申请日：2006-11-08

申请人： Toshiaki Takano ,  Minoru Onoda ,  Tomokazu Tokunaga

发明人： Toshiaki Takano ,  Minoru Onoda ,  Tomokazu Tokunaga

IPC分类号： G02B5/04

CPC分类号： G02B5/04 ,  G02B7/1805 ,  G02B13/001 ,  G02B13/0065

摘要： A prism 30 includes a prism body 31 formed into a polygonal column. At least one ridge 35 of a plurality of ridges 35 of the prism body 31 is formed into a flat face 37. A joint part 38 between the flat face 37 and at least one 32, 33 of the faces 32, 33 of the prism body 31 which are adjacent to each other with the ridge 35 in the flat face 37 interposed is formed into an R-plane.

摘要翻译： 棱镜30包括形成为多边形柱的棱镜体31。 棱镜体31的多个脊35中的至少一个脊35形成为平坦面37.平面37与棱镜体的面32,33中的至少一个32,33的接合部38 31彼此相邻，平坦面37中的脊35形成为R平面。