公开(公告)号：US06985301B2

公开(公告)日：2006-01-10

申请号：US10692809

申请日：2003-10-27

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/14

CPC classification number: G02B15/177

Abstract: A zoom lens has, on the most object side, a first lens unit that has a prism with a reflecting surface for folding the path of rays, that has a negative refractive power in its entirety and that is fixed in a magnification change, and an aperture stop that is fixedly positioned in reference to the image pickup surface. The ray-entering surface of the prism has an aspherical surface concave toward the object side that exerts a weaker power for divergence at a position thereon farther from the optical axis. Whereby, a zoom lens with high optical specification performance and extremely thin size in depth direction is provided.

Abstract translation: 在最物体侧，变焦透镜具有第一透镜单元，该第一透镜单元具有棱镜，该棱镜具有用于折叠光线路径的反射面，其整体具有负折射力并且以倍率变化固定， 相对于图像拾取表面固定定位的孔径光阑。 棱镜的射线入射表面具有朝向物体侧凹陷的非球面，其在远离光轴的位置发挥较弱的发散功率。 因此，提供了具有高光学规格性能并且在深度方向上非常薄的尺寸的变焦镜头。

公开(公告)号：US06975462B2

公开(公告)日：2005-12-13

申请号：US10867819

申请日：2004-06-16

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/20 ,  G02B5/04 ,  G02B13/18 ,  G02B15/173 ,  G03B17/17 ,  H04N5/225 ,  H04N101/00 ,  G02B15/14

CPC classification number: G02B15/173 ,  G02B5/04

Abstract: A zoom lens has an easily bendable optical path with high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and reduced aberrations. The lens comprises a first lens group GI that remains fixed during zooming, a second lens group G2 that has negative refracting power and moves during zooming, a third lens group G3 that has positive refracting power and moves during zooming, and a fourth lens group G4 that has positive refracting power and moves during zooming and focusing. The first lens group comprises, in order from an object side thereof, a negative meniscus lens component convex on an object side thereof, a reflecting optical element for bending an optical path and a positive lens. The fourth lens group G4 moves in a locus opposite to that of movement of the third lens group G3 during zooming when focusing on infinity.

Abstract translation: 变焦镜头具有高的光学规格性能的容易弯曲的光路，例如高变焦比，广角排列，小F数和减小的像差。 透镜包括在变焦期间保持固定的第一透镜组GI，具有负折射力并在变焦期间移动的第二透镜组G2，具有正折射力并且在变焦期间移动的第三透镜组G3和第四透镜组G4 具有正折射力并在变焦和聚焦期间移动。 第一透镜组从物体侧依次包括在其物体侧凸出的负弯月形透镜部件，用于弯曲光路的反射光学元件和正透镜。 当在无限远时进行变焦时，第四透镜组G4在与第三透镜组G3的移动相反的轨迹上移动。

公开(公告)号：US06967782B2

公开(公告)日：2005-11-22

申请号：US10740749

申请日：2003-12-22

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/20 ,  G02B15/177 ,  G02B15/14

CPC classification number: G02B15/177

Abstract: The invention relates to a high-performance, large-aperture yet wide-angle zoom lens system that can be used with an electronic image pickup device in particular, a method for focusing the same. In particular, the invention is concerned with a high-performance, large-aperture yet wide-angle zoom lens system which has a zoom ratio of the order of 3 at a diagonal field angle of 75° at its wide-angle end, so that it can be used with a single-lens reflex camera using an electronic image pickup device with the number of pixels being of the order of 6,000,000. The zoom lens system comprises a first lens group G1 having negative refracting power, a second lens group G2 having positive refracting power, a third lens group G3 having negative refracting power, a fourth lens group G4 having positive refracting power and a fifth lens group G5 having positive refracting power. Upon movement of an object point, focusing is carried out with the fifth lens group G5.

Abstract translation: 本发明涉及一种可与电子摄像装置一起使用的高性能，大光圈但广角变焦透镜系统，其特征在于其聚焦方法。 特别地，本发明涉及一种高性能，大光圈但广角变焦透镜系统，其在广角端具有75°角对角场角的3倍的倍率，因此， 它可以与使用电子摄像装置的单镜头反光照相机一起使用，像素数量约为600万。 变焦透镜系统包括具有负折射力的第一透镜组G 1，具有正折射力的第二透镜组G 2，具有负折射光焦度的第三透镜组G 3，具有正折射率的第四透镜组G 4和 具有正折射率的第五透镜组G 5。 在物点移动时，用第五透镜组G 5进行聚焦。

公开(公告)号：US20050002115A1

公开(公告)日：2005-01-06

申请号：US10867819

申请日：2004-06-16

Applicant: Shinichi Mihara

Inventor： Shinichi Mihara

IPC: G02B15/20 ,  G02B5/04 ,  G02B13/18 ,  G02B15/173 ,  G03B17/17 ,  H04N5/225 ,  H04N101/00 ,  G02B15/14

CPC classification number: G02B15/173 ,  G02B5/04

Abstract: The invention relates to a zoom lens with an easily bendable optical path, which has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and reduced aberrations. The zoom lens comprises a first lens group G1 that remains fixed during zooming, a second lens group G2 that has negative refracting power and moves during zooming, a third lens group G3 that has positive refracting power and moves during zooming, and a fourth lens group G4 that has positive refracting power and moves during zooming and focusing. The first lens group comprises, in order from an object side thereof, a negative meniscus lens component convex on an object side thereof, a reflecting optical element for bending an optical path and a positive lens. Upon focusing on an infinite object point, the fourth lens group G4 moves in a locus opposite to that of movement of the third lens group G3 during zooming.

Abstract translation: 本发明涉及具有易弯曲光路的变焦透镜，其具有高的光学规格性能，例如高变焦比，广角排列，小F数和减小的像差。 变焦镜头包括在变焦期间保持固定的第一透镜组G1，具有负折射力并在变焦期间移动的第二透镜组G2，具有正折射力并在变焦期间移动的第三透镜组G3和第四透镜组 G4具有正折射力并在变焦和聚焦期间移动。 第一透镜组从物体侧依次包括在其物体侧凸出的负弯月形透镜部件，用于弯曲光路的反射光学元件和正透镜。 在聚焦于无限物体点时，第四透镜组G4在变焦期间在与第三透镜组G3的移动相反的轨迹上移动。

公开(公告)号：US06744564B2

公开(公告)日：2004-06-01

申请号：US10294775

申请日：2002-11-15

Applicant: Shinichi Mihara ,  Azusa Noguchi

Inventor： Shinichi Mihara ,  Azusa Noguchi

IPC: G02B1514

CPC classification number: G02B5/20 ,  G02B5/22 ,  G02B5/26 ,  G02B13/18 ,  G02B15/177 ,  G02B15/20 ,  H04N5/225

Abstract: The invention provides a zoom lens that operates in such a zooming mode and zoom arrangement that the number of lens elements is reduced to make the total thickness of each lens group thin while stable yet high image-formation capability is maintained, thereby achieving thorough size reductions in video cameras or digital cameras, and an electronic imaging system using the same. The zoom lens comprises a first lens group G1 of negative refracting power, a second lens group G2 of positive refracting power and a third lens group G3 of positive refracting power. For zooming from the wide-angle end to the telephoto end of the zoom lens upon focused on an infinite object point, the second lens group G2 moves toward the object side alone of the zoom lens, and the third lens group G3 moves in a locus different from that of the second lens group while the spacing between adjacent lens groups varies. The second lens group G2 is composed of two lens components, i.e., an object side-lens component and an image side-lens component, one of which is composed of a cemented lens component consisting of a positive lens element and a negative lens element, and the other consists only of a single lens component. The object side-lens component satisfies condition (1) concerning the axial radius-of-curvature ratio between the object side-surface and the image side-surface.

Abstract translation: 本发明提供了一种变焦透镜，其以这样的变焦模式和变焦布置进行操作，使得透镜元件的数量减少，使得每个透镜组的总厚度变薄，同时稳定但仍保持高的图像形成能力，从而实现彻底的尺寸减小 在摄像机或数码相机中，以及使用其的电子成像系统。 变焦透镜包括负折射率的第一透镜组G1，正折射率的第二透镜组G2和正折射率的第三透镜组G3。 为了在聚焦在无限物体点上时从变焦镜头的广角端到远摄端放大，第二透镜组G2单独向变焦透镜朝向物体侧移动，第三透镜​​组G3在轨迹中移动 与第二透镜组不同，而相邻透镜组之间的间距变化。 第二透镜组G2由两个透镜部件组成，即物体侧透镜部件和图像侧透镜部件，其中一个透镜部件由由正透镜元件和负透镜元件组成的胶合透镜部件组成， 而另一个仅由单个透镜组件组成。 物体侧透镜部件满足关于物体侧表面和图像侧表面之间的轴向半径 - 曲率比的条件（1）。

公开(公告)号：US06538824B1

公开(公告)日：2003-03-25

申请号：US10183459

申请日：2002-06-28

Applicant: Shinichi Mihara ,  Yuji Miyauchi ,  Masahito Watanabe ,  Hirokazu Konishi

Inventor： Shinichi Mihara ,  Yuji Miyauchi ,  Masahito Watanabe ,  Hirokazu Konishi

IPC: G02B1514

CPC classification number: H04N5/2254 ,  G02B15/177 ,  G02B26/007

Abstract: The object of the invention is to reduce the thickness of electronic image pickup equipment as much as possible, using a zooming mode having stable, high image-formation capabilities from an object at infinity to a near-by object. The electronic image pickup equipment comprises a zoom lens system comprising a negative, first lens group G1, a positive, second lens group G2 and a positive, third lens group G3. For zooming from the wide-angle end to the telephoto end of the zoom lens system upon focused on an object at infinity, the separation between G2 and G3 becomes wise. By moving G3 toward the object side of the system, the system can be focused on a nearer-by object. In the zoom lens system, the second lens group G2 comprises one positive lens 2a, one negative lens 2b and a lens subgroup 2c comprising at least one lens, and the third lens group G3 comprises one positive lens. The zoom lens system satisfies conditions with respect to the optical axis distance from the image-side surface of the positive lens 2a to the image-side surface of the negative lens 2b and the focal length ratio in air between the positive lens 2a and the lens subgroup 2c.

公开(公告)号：US5839397A

公开(公告)日：1998-11-24

申请号：US860278

申请日：1997-06-17

Applicant: Shigehisa Funabashi ,  Yoshihiro Takada ,  Masatoshi Watanabe ,  Shinichi Shimode ,  Yoshio Tanito ,  Sotaro Tanaka ,  Zenji Kaneko ,  Ichiro Hirami ,  Toshio Takishita ,  Shinichi Mihara

Inventor： Shigehisa Funabashi ,  Yoshihiro Takada ,  Masatoshi Watanabe ,  Shinichi Shimode ,  Yoshio Tanito ,  Sotaro Tanaka ,  Zenji Kaneko ,  Ichiro Hirami ,  Toshio Takishita ,  Shinichi Mihara

IPC: B60K11/04 ,  B60K11/08 ,  F01P1/00 ,  F01P5/02 ,  F01P5/06 ,  F01P11/10 ,  F04D17/16 ,  F04D29/58 ,  F04D29/66 ,  F01P7/14

CPC classification number: E02F9/0866 ,  B60K11/04 ,  B60K11/08 ,  F01P11/10 ,  F01P5/02 ,  F04D17/162 ,  F04D29/582 ,  F04D29/664 ,  F01P2001/005

Abstract: First cooling air (50) enters an engine room (1) through a cooling air inlet port (7a) from the exterior of the engine room (1), and is throttled by a suction tube (8a) after passing heat exchangers such as an intercooler (6a), an oil cooler (6b) and a radiator (6c), followed by entering a centrifugal fan (4). The first cooling air (50) is then blown off toward an outer circumference of the centrifugal fan (4). Second cooling air enters the engine room (1) through cooling air inlet ports (7b, 7b) from the exterior of the engine room (1), and flows around an engine (5), various electric equipments such as an alternator (10), and an oil pan (14) while cooling them. The second cooling air is then throttled by a suction tube (8b) before entering the centrifugal fan (4), and blown off toward the outer circumference of the centrifugal fan (4). Two streams of the first and second cooling air (50, 51) are discharged to the exterior through an exhaust port (9). This arrangement enhances the degree of sealing on the engine (5) side to reduce noise, and improves the effect of cooling the electric equipments (10) for higher reliability of the electric equipments (10).

Abstract translation: PCT No.PCT / JP96 / 03025 Sec。 371日期：1997年6月17日 102（e）日期1997年6月17日PCT 1996年10月18日PCT PCT。 公开号WO97 / 14874 日期1997年04月24日第一冷却空气（50）通过从发动机室（1）的外部的冷却空气入口（7a）进入发动机室（1），并在通过后被吸管（8a）节流 诸如中间冷却器（6a），油冷却器（6b）和散热器（6c）之类的热交换器，随后进入离心风扇（4）。 然后将第一冷却空气（50）吹向离心式风扇（4）的外周。 第二冷却空气通过来自发动机室（1）的外部的冷却空气入口（7b，7b）进入发动机室（1），并且在发动机（5）周围流动，诸如交流发电机（10）等各种电气设备， 和油盘（14），同时冷却它们。 然后在进入离心风扇（4）之前，第二冷却空气被吸入管（8b）节流，并且向离心式风扇（4）的外周吹出。 第一和第二冷却空气（50,51）的两股流经排气口（9）排出到外部。 由此，能够提高发动机（5）侧的密封度，降低噪音，提高电气设备（10）的冷却效果，从而提高电气设备（10）的可靠性。

公开(公告)号：US5260834A

公开(公告)日：1993-11-09

申请号：US862427

申请日：1992-04-02

Applicant: Hironori Shibata ,  Shinichi Mihara

Inventor： Hironori Shibata ,  Shinichi Mihara

IPC: G02B15/173 ,  G02B15/14

CPC classification number: G02B15/173

Abstract: The present invention relates to a small zoom lens system for electronic still cameras or video cameras, which has a zoom ratio lying in the range of about 2.5-3.2 and an F-number lying in the range of about 2-2.8, comprises as small as 7 or 8 lenses and is reduced in terms of both the total length and the lens diameter, and which is characterized by comprising, in order from the object side, at least a first lens group having a positive refractive power, a second lens group having a negative refractive power, a stop and a third lens group having a positive refractive power, and in that during zooming the first lens group remains fixed while the second and third lens groups are moved along the optical axis, and the following conditions (1) and (2) are satisfied:0.9.times..beta..sub.2T /.beta..sub.2W

Abstract translation: 本发明涉及一种用于电子静态照相机或摄像机的小变焦透镜系统，其具有在约2.5-3.2范围内的变焦倍率和约2-2.8范围内的F数，包括小 作为7或8个透镜，并且在总长度和透镜直径方面都减小，其特征在于，从物体侧开始，至少包括具有正折光力的第一透镜组，第二透镜组 具有负折光力的光束，具有正折射光焦度的光阑和第三透镜组，并且在变焦期间，第一透镜组在第二和第三透镜组沿光轴移动的同时保持固定，并且以下条件（1 ）和（2）：0.9xβ2T /β2W <β3T /β3W <2.0×β2T /β2W，（1）和0.5

公开(公告)号：US5248807A

公开(公告)日：1993-09-28

申请号：US867683

申请日：1992-07-08

Applicant: Masafumi Fujimoto ,  Kensuke Sakurai ,  Shinichi Mihara ,  Miharu Nakamura ,  Toshiro Konoike

Inventor： Masafumi Fujimoto ,  Kensuke Sakurai ,  Shinichi Mihara ,  Miharu Nakamura ,  Toshiro Konoike

IPC: A61K31/00 ,  C07J63/00

CPC classification number: C07J63/008

Abstract: The present invention provides triterpene derivatives of the following formula: ##STR1## wherein, R.sup.1 is hydrogen or metabolic ester-residue; R.sup.3 is optionally substituted aryl or optionally substituted aromatic heterocycle; X is hydrogen and Y is hydroxy or X and Y may form together oxo; Z is an oxygen or two hydrogen atoms, or the salts thereof, which have anti-endothelin activities and are useful for preventing or treating cardiovascular failure, and pharmaceutical compositions thereof.

公开(公告)号：US08203799B2

公开(公告)日：2012-06-19

申请号：US12925753

申请日：2010-10-28

Applicant: Shinichi Mihara ,  Hisashi Goto ,  Masaki Arakawa ,  Toyoki Kon

Inventor： Shinichi Mihara ,  Hisashi Goto ,  Masaki Arakawa ,  Toyoki Kon

IPC: G02B9/00

CPC classification number: G02B15/177 ,  G02B13/18 ,  G02B27/0025

Abstract: A lens component of the present invention is made by cementing a lens LA and a lens LB having a refracting power smaller than a refracting power of the lens LA, and satisfies predetermined conditional expressions. Moreover, in an image forming optical system of the present invention which includes a lens group B having a negative refracting power, a lens group C having a positive refracting power and which moves only toward an object side at the time of zooming from a wide angle end to a telephoto end, and one or two more lens groups additionally, one of the lens components of the present invention is used in the lens group B.

Abstract translation: 本发明的透镜部件通过胶合具有小于透镜LA的折射力的折射率的透镜LA和透镜LB来制成，并且满足预定的条件表达式。 此外，在本发明的图像形成光学系统中，包括具有负折射力的透镜组B，具有正折射率的透镜组C，并且在从广角变焦时仅向物体侧移动 结束到远摄端，另外还有一个或两个透镜组，在透镜组B中使用本发明的一个透镜部件。