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1. 发明授权

US07460307B2 Projector lens system 失效
标题翻译：投影机镜头系统
公开(公告)号：US07460307B2
公开(公告)日：2008-12-02
申请号：US10594971
申请日：2005-04-20
申请人： Akihiro Muramatsu , Yasuhisa Kitaoka
发明人： Akihiro Muramatsu , Yasuhisa Kitaoka
IPC分类号： G02B3/00 , G02B9/00
CPC分类号： G02B13/16 , G02B7/028 , G02B13/04 , G02B13/18 , G02B27/0025
摘要： To provide a compact and low-cost projector lens capable of appropriately performing temperature correction and obtaining excellent image quality although using a plurality of plastic lens elements, a first lens unit having negative refractive power and a second lens unit having positive refractive power are provided from the screen side, the first lens unit includes a negative meniscus lens element 1b being a plastic lens element, being convex to the screen side and having an aspherical surface, the second lens unit includes: a negative lens element 2b being a plastic lens element and having an aspherical surface; and at least two positive lens elements having anomalous dispersibility and a temperature coefficient of a negative refractive index, and an image plane fluctuation by a temperature change due to a temperature coefficient of a negative refractive index of the plastic lens elements 1b and 2b of the first and second lens units is corrected by the temperature coefficient of the predetermined negative refractive index of the positive lens elements.
摘要翻译：为了提供能够适当地进行温度校正并获得优异的图像质量的紧凑且低成本的投影透镜，尽管使用多个塑料透镜元件，具有负折光力的第一透镜单元和具有正折射光焦度的第二透镜单元提供从屏幕侧，第一透镜单元包括作为塑料透镜元件的负弯月形透镜元件1b，其在屏幕侧凸出并具有非球面，第二透镜单元包括：作为塑料透镜元件的负透镜元件2b，具有非球面; 以及具有异常分散性和负折射率的温度系数的至少两个正透镜元件以及由于第一像素的塑料透镜元件1b和2b的负折射率的温度系数引起的温度变化的像面波动并且通过正透镜元件的预定负折射率的温度系数校正第二透镜单元。

2. 发明申请

US20070217030A1 Projector Lens System 失效
标题翻译：投影机镜头系统
公开(公告)号：US20070217030A1
公开(公告)日：2007-09-20
申请号：US10594971
申请日：2005-04-20
申请人： Akihiro Muramatsu , Yasuhisa Kitaoka
发明人： Akihiro Muramatsu , Yasuhisa Kitaoka
IPC分类号： G02B13/00
CPC分类号： G02B13/16 , G02B7/028 , G02B13/04 , G02B13/18 , G02B27/0025
摘要： To provide a compact and low-cost projector lens capable of appropriately performing temperature correction and obtaining excellent image quality although using a plurality of plastic lens elements, a first lens unit having negative refractive power and a second lens unit having positive refractive power are provided from the screen side, the first lens unit includes a negative meniscus lens element 1b being a plastic lens element, being convex to the screen side and having an aspherical surface, the second lens unit includes: a negative lens element 2b being a plastic lens element and having an aspherical surface; and at least two positive lens elements having anomalous dispersibility and a temperature coefficient of a negative refractive index, and an image plane fluctuation by a temperature change due to a temperature coefficient of a negative refractive index of the plastic lens elements 1b and 2b of the first and second lens units is corrected by the temperature coefficient of the predetermined negative refractive index of the positive lens elements.
摘要翻译：为了提供能够适当地进行温度校正并获得优异的图像质量的紧凑且低成本的投影透镜，尽管使用多个塑料透镜元件，具有负折光力的第一透镜单元和具有正折射光焦度的第二透镜单元提供从屏幕侧，第一透镜单元包括作为塑料透镜元件的负弯月形透镜元件1b，其在屏幕侧凸出并具有非球面，第二透镜单元包括：负透镜元件b，其为塑料透镜并具有非球面; 以及具有异常分散性和负折射率的温度系数的至少两个正透镜元件以及由于塑料透镜元件1b和2b的负折射率的温度系数引起的温度变化的像面波动通过正透镜元件的预定负折射率的温度系数校正第一透镜单元和第二透镜单元。

3. 发明授权

US08982200B2 Intraoral camera with light collecting faces that deflect light close to an imaging window 有权
标题翻译：具有聚光面的口内照相机将光线偏转到成像窗口附近
公开(公告)号：US08982200B2
公开(公告)日：2015-03-17
申请号：US13130152
申请日：2010-09-13
申请人： Yasuhisa Kitaoka , Toshiaki Ueta , Yoshiki Ishikawa , Mitsuhiro Iwata
发明人： Yasuhisa Kitaoka , Toshiaki Ueta , Yoshiki Ishikawa , Mitsuhiro Iwata
IPC分类号： H04N7/18 , A61B1/06 , A61B1/247
CPC分类号： A61B1/0676 , A61B1/0623 , A61B1/0684 , A61B1/247
摘要： An intraoral camera including a main body case, an intraoral insertion component mounted on the front side of the main body case, an imaging window provided to the intraoral insertion component, and an imaging device that is optically linked to the imaging window and is disposed inside the main body case or inside the intraoral insertion component. Illumination elements are disposed at portions of an outer peripheral wall face that are substantially opposite each other in the horizontal direction. These illumination elements are inclined toward the outside of the imaging window in the center of the imaging window, and the outer peripheral wall face that is substantially opposite these illumination elements in the vertical direction is constituted as a light collecting face that is inclined toward the outside of the imaging window in the center of the imaging window.
摘要翻译：一种口腔内照相机，包括主体壳体，安装在主体壳体的前侧上的口腔内插入部件，设置在口腔插入部件上的成像窗口，以及与成像窗口光学连接并设置在内窥镜中的成像装置主体外壳或口内插入部件内。照明元件设置在外周壁面的在水平方向上基本相反的部分。这些照明元件朝着成像窗口中心的成像窗口的外侧倾斜，并且在垂直方向上与这些照明元件基本相反的外周壁面被构成为朝向外侧倾斜的聚光面在成像窗口中心的成像窗口。

4. 发明授权

US06710932B2 Zoom lens system with temperature compensation function and video camera using the same 失效
标题翻译：具有温度补偿功能的变焦镜头系统和使用相同的摄像机
公开(公告)号：US06710932B2
公开(公告)日：2004-03-23
申请号：US10316377
申请日：2002-12-11
申请人： Yasuhisa Kitaoka , Yukihiro Takabatake
发明人： Yasuhisa Kitaoka , Yukihiro Takabatake
IPC分类号： G02B1514
CPC分类号： G02B15/173 , G02B7/028 , G02B7/10
摘要： A zoom lens system with temperature compensation function includes the first lens group having a positive refractive power, the second lens group that has negative refractive power and moves along an optical axis, the third lens group having a plastic lens of positive refractive power, the fourth lens group that has positive refractive power and moves along the optical axis, the first lens barrel which extends from the first lens group to the third lens group, and the second lens barrel which extends from the third lens group to an image pickup element, and expansion or contraction of at least one of lens barrels in accordance with temperature change cancels variation of image location caused by temperature change of the lens groups.
摘要翻译：具有温度补偿功能的变焦透镜系统包括具有正折光力的第一透镜组，具有负折光力并沿着光轴移动的第二透镜组，第三透镜组具有正屈光力的塑料透镜，第四透镜组具有正屈光力具有正折射力并且沿着光轴移动的透镜组，从第一透镜组延伸到第三透镜组的第一透镜镜筒和从第三透镜组延伸到图像拾取元件的第二透镜镜筒，以及根据温度变化，透镜筒中的至少一个的膨胀或收缩消除由透镜组的温度变化引起的图像位置的变化。

5. 发明申请

US20110221878A1 INTRAORAL CAMERA 有权
标题翻译：内窥镜
公开(公告)号：US20110221878A1
公开(公告)日：2011-09-15
申请号：US13130152
申请日：2010-09-13
申请人： Yasuhisa Kitaoka , Toshiaki Ueta , Yoshiki Ishikawa , Mitsuhiro Iwata
发明人： Yasuhisa Kitaoka , Toshiaki Ueta , Yoshiki Ishikawa , Mitsuhiro Iwata
IPC分类号： H04N7/18
CPC分类号： A61B1/0676 , A61B1/0623 , A61B1/0684 , A61B1/247
摘要： The intraoral camera of the present invention comprises a main body case (1), an intraoral insertion component (3) mounted on the front side of the main body case (1), an imaging window (3a) provided to the intraoral insertion component (3), and an imaging device (10) that is optically linked to the imaging window (3a) and is disposed inside the main body case (1) or inside the intraoral insertion component (3). Illumination elements (9) are disposed at portions of an outer peripheral wall face (17) that are substantially opposite each other in the horizontal direction. These illumination elements (9) are inclined toward the outside of the imaging window in the center of the imaging window (3a), and the outer peripheral wall face (17) that is substantially opposite these illumination elements (9) in the vertical direction is constituted as a light collecting face that is inclined toward the outside of the imaging window in the center of the imaging window (3a).
摘要翻译：本发明的口腔内照相机包括主体壳体（1），安装在主体壳体（1）的前侧的口腔内插入部件（3），设置在口腔插入部件上的成像窗口（3a） 3）和与成像窗（3a）光学连接并设置在主体壳体（1）内部或口腔内插入部件（3）内的成像装置（10）。照明元件（9）设置在外周壁面（17）的水平方向大致相反的部分。这些照明元件（9）在成像窗（3a）的中心朝向成像窗口的外侧倾斜，并且在垂直方向上与这些照明元件（9）基本相反的外周壁面（17）是构成为在成像窗（3a）的中心向成像窗的外侧倾斜的聚光面。

6. 发明授权

US06650484B2 Zoom lens, and its manufacturing method 失效
公开(公告)号：US06650484B2
公开(公告)日：2003-11-18
申请号：US10069315
申请日：2002-06-14
申请人： Yasuhisa Kitaoka , Akihiro Muramatsu
发明人： Yasuhisa Kitaoka , Akihiro Muramatsu
IPC分类号： G02B1514
CPC分类号： G02B15/173 , G02B13/18
摘要： A zoom lens includes a first lens group (1) having a positive refracting force that is fixed, a second lens group (2) having a negative refracting force that is movable along an optical axis and provided with a function of varying magnification, a third lens group (3) having a positive refracting force that is fixed, and a fourth lens group (4) having a positive refracting force that is movable along an optical axis and provided with a function of correcting fluctuations of an image plane resulting from varying magnification or changing an object distance (4), the first, second, third and fourth lens groups being disposed from an object side in this order, wherein the third lens group (3) and the fourth lens group (4) both include a positive glass spherical lens (L5, L8) and a plastic aspherical lens (L6, L7) having weaker refracting power. Thus, a compact zoom lens having a high magnification ratio of 20 times can be obtained at low cost.

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