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    • 2. 发明授权
    • Lens apparatus
    • 镜头设备
    • US07852732B2
    • 2010-12-14
    • US12029858
    • 2008-02-12
    • Isamu IzuharaYasuyuki TomitaShin-ichiro Yakita
    • Isamu IzuharaYasuyuki TomitaShin-ichiro Yakita
    • G02B7/28G03B7/099
    • H04N5/23212
    • A lens apparatus has a focusing lens unit, a separating optical unit disposed on an optical axis of the lens apparatus, a focus detection unit that detects focus condition using a light beam from the separating optical unit, a first drive unit that drives the focusing lens unit based on an output of the focus detection unit, and a second drive unit that drives the separating optical unit. An optical separating surface that the separating optical unit has reflectance that varies continuously in a first direction. The second drive unit drives or moves the separating optical unit in the first direction.
    • 透镜装置具有聚焦透镜单元,设置在透镜装置的光轴上的分离光学单元,使用来自分离光学单元的光束检测对焦条件的焦点检测单元,驱动聚焦透镜的第一驱动单元 基于焦点检测单元的输出的单元,以及驱动分离光学单元的第二驱动单元。 分离光学单元具有沿第一方向连续变化的反射率的光学分离表面。 第二驱动单元沿第一方向驱动或移动分离光学单元。
    • 3. 发明授权
    • Image-taking lens system and image-taking system
    • 摄像镜头系统和摄像系统
    • US07423687B2
    • 2008-09-09
    • US10976854
    • 2004-11-01
    • Shinichiro YakitaYasuyuki Tomita
    • Shinichiro YakitaYasuyuki Tomita
    • H04N5/225
    • G02B7/102G02B15/10
    • Disclosed is an image-taking lens system, with which the optimum image-forming position can be detected accurately regardless of whether an auxiliary lens system is inserted or not, and with little blurring of the image on the output screen during wobbling. The image-taking lens system includes a light amount adjustment stop; a relay lens unit having an image-forming action; a wobbling lens unit arranged within the relay lens unit, the wobbling lens unit being driven by an amplitude in an optical axis direction; and an auxiliary lens system which can be inserted into and removed from the relay lens unit, the auxiliary lens system shifting a focal length of the overall image-taking lens system. The amplitude by which the wobbling lens unit is driven is set depending on whether the auxiliary lens system is inserted or removed.
    • 公开了一种摄影镜头系统,无论是否插入辅助镜头系统,都可以精确地检测最佳图像形成位置,并且在摆动期间几乎不会在输出屏幕上的图像模糊。 摄像透镜系统包括光量调节停止部; 具有成像动作的中继透镜单元; 布置在中继透镜单元内的摆动透镜单元,摆动透镜单元以光轴方向的振幅驱动; 以及可以插入中继透镜单元和从中继透镜单元移除的辅助透镜系统,辅助透镜系统移动整个摄像透镜系统的焦距。 摆动镜头单元的驱动幅度根据辅助镜头系统的插入或取出而设定。
    • 5. 发明授权
    • Zoom lens
    • 变焦镜头
    • US06002528A
    • 1999-12-14
    • US049139
    • 1998-03-27
    • Yasuyuki Tomita
    • Yasuyuki Tomita
    • G02B15/167G02B15/173G02B15/22G02B15/14
    • G02B15/173
    • A zoom lens including, in succession from the object side, a first positive lens unit (focal length f1), a second negative lens unit, a third lens unit, and a fourth positive lens unit, the second and third lens units moving for zooming, the first lens unit having, from the object side, a front lens subunit (focal length f11) fixed during focusing and a rear lens subunit (focal length f12) movable toward the object side for focusing on an infinity object to a short distance object, the front lens subunit having a cemented lens comprising a first negative lens (refractive power N111, Abbe number .nu.111) and a second positive lens (refractive power N112, Abbe number .nu.112) cemented together, the rear lens subunit having first and second positive lenses, wherein, where Ri is the radius of curvature of the ith lens surface from the object side:f/11/f1
    • 一种变焦透镜,包括从物体侧连续的第一正透镜单元(焦距f1),第二负透镜单元,第三透镜​​单元和第四正透镜单元,第二和第三透镜单元移动以进行变焦 第一透镜单元从物体侧具有在聚焦期间固定的前透镜子单元(焦距f11)和朝向物体侧移动的后透镜子单元(焦距f12),用于将无限远物体聚焦到短距离物体 ,具有胶合透镜的前透镜子单元包括胶合在一起的第一负透镜(折光力N111,阿贝数nu 111)和第二正透镜(屈光力N112,阿贝数nu 112),后透镜子单元具有第一和第二 正透镜,其中,Ri是物镜侧的第i个透镜表面的曲率半径:f / 11 / f1 <-10 0.85
    • 6. 发明申请
    • Image-taking lens system and image-taking system
    • 摄像镜头系统和摄像系统
    • US20050094026A1
    • 2005-05-05
    • US10976854
    • 2004-11-01
    • Shinichiro YakitaYasuyuki Tomita
    • Shinichiro YakitaYasuyuki Tomita
    • G02B7/10G02B7/28G02B7/36G02B15/10G02B15/173G03B5/08H04N5/225H04N5/232
    • G02B7/102G02B15/10
    • Disclosed is an image-taking lens system, with which the optimum image-forming position can be detected accurately regardless of whether an auxiliary lens system is inserted or not, and with little blurring of the image on the output screen during wobbling. The image-taking lens system includes a light amount adjustment stop; a relay lens unit having an image-forming action; a wobbling lens unit arranged within the relay lens unit, the wobbling lens unit being driven by an amplitude in an optical axis direction; and an auxiliary lens system which can be inserted into and removed from the relay lens unit, the auxiliary lens system shifting a focal length of the overall image-taking lens system. The amplitude by which the wobbling lens unit is driven is set depending on whether the auxiliary lens system is inserted or removed.
    • 公开了一种摄影镜头系统,无论是否插入辅助镜头系统,都可以精确地检测最佳图像形成位置,并且在摆动期间几乎不会在输出屏幕上的图像模糊。 摄像透镜系统包括光量调节停止部; 具有成像动作的中继透镜单元; 布置在中继透镜单元内的摆动透镜单元,摆动透镜单元以光轴方向的振幅驱动; 以及可以插入中继透镜单元和从中继透镜单元移除的辅助透镜系统,辅助透镜系统移动整个摄像透镜系统的焦距。 摆动镜头单元的驱动幅度根据辅助镜头系统的插入或取出而设定。
    • 7. 发明授权
    • Zoom lens and photographing apparatus
    • 变焦镜头和拍摄设备
    • US06512637B1
    • 2003-01-28
    • US09688107
    • 2000-10-16
    • Yasuyuki Tomita
    • Yasuyuki Tomita
    • G02B1514
    • G02B15/173
    • A zoom lens includes, in order from an object side to an image side, a first lens unit of positive refractive power, a second lens unit of negative refractive power arranged to move during a variation of magnification, a third lens unit arranged to move during a variation of magnification, and a fourth lens unit of positive refractive power, the first lens unit including a first lens subunit of negative refractive power, a second lens subunit of positive refractive power arranged to move during focusing, and a third lens subunit of positive refractive power, wherein the zoom lens satisfies the following conditions: 1.95
    • 变焦透镜从物体侧到像侧依次包括具有正屈光力的第一透镜单元,布置成在放大变化期间移动的负折射力的第二透镜单元,布置成在第一透镜单元的移动期间移动的第三透镜单元 放大率的变化和正屈光力的第四透镜单元,所述第一透镜单元包括负屈光力的第一透镜子单元,布置成在聚焦期间移动的正折射力的第二透镜子单元和正的折射力的第三透镜子单元 屈光力,其中变焦透镜满足以下条件:其中,deltabeta1是当第二透镜子单元位于这样的位置时聚焦的第一透镜单元的横向放大率相对于标准距离对象的比率 相对于当第二透镜子单元位于这样的位置时获得的标准距离物体的与第一透镜单元的横向放大率的最小距离 位置为重点在无限远的距离,deltabeta24是由第二透镜单元组成的透镜系统与第四透镜单元的横向放大率相对于当第二透镜子单元位于这样的位置时获得的标准距离对象的比率 相对于当第二透镜子单元位于这样的位置时获得的标准距离对象的焦点在于由第二透镜单元组成的透镜系统到第四透镜单元的横向放大率的最小距离的位置, 关注无限距离,f11是第一透镜子单元的焦距,f12是第二透镜子单元的焦距。
    • 10. 发明申请
    • Drive controller of lens apparatus
    • 镜头设备的驱动控制器
    • US20050271373A1
    • 2005-12-08
    • US11143249
    • 2005-06-02
    • Yasuyuki Tomita
    • Yasuyuki Tomita
    • G03B13/36G02B7/08G02B7/10G02B7/28G02B7/36H04N5/225H04N5/232G03B3/00
    • G02B7/102H04N5/23212
    • A drive controller of a lens apparatus including a first lens unit movable to perform manual focus and a second lens unit disposed closer to an image than the first lens unit. The drive controller includes a detection device detecting a focal state of the lens apparatus, a storage device storing the focal state detected by the detection device, and a control device controlling focus for driving the second lens unit to a focal position on the basis of the focal state detected by the detection device. The control device also performs a compensation operation on the manual focus with the focus control after completion of the manual focus. The drive controller eliminates a clutch mechanism for selecting drive systems for the manual focus and for focus adjustment and performs a focus adjustment (a compensation operation) after completion of the manual focus while minimizing a space needed for a rear focus unit to move.
    • 一种透镜装置的驱动控制器,包括可执行手动对焦的第一透镜单元和靠近图像设置的第二透镜单元。 驱动控制器包括:检测透镜装置的焦点状态的检测装置;存储由检测装置检测的焦点状态的存储装置;以及控制装置,其控制焦点,基于所述检测装置将所述第二透镜单元驱动到焦点位置 由检测装置检测到焦点状态。 控制装置还在手动对焦完成后,通过对焦控制对手动对焦进行补偿操作。 驱动控制器消除了用于选择用于手动对焦的驱动系统和焦点调整的离合器机构,并且在完成手动对焦之后执行聚焦调整(补偿操作),同时最小化后焦点单元移动所需的空间。