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公开(公告)号：US06633731B2
公开(公告)日：2003-10-14
申请号：US09883234
申请日：2001-06-19
申请人： Yusuke Nanjo , Toshiaki Isogawa
发明人： Yusuke Nanjo , Toshiaki Isogawa
IPC分类号： G03B1720
CPC分类号： G03B13/02
摘要： Provided is an electronic view finder for use in a video camera apparatus that by making the relative position between an LCD and an ocular lens unit proper can decrease the rotatory polarization characteristic and can thereby enhance the contrast of the image. When a liquid crystal image screen surface has the characteristic of Viewing-Angle that this screen surface is seen with its contrast or brightness being different according to the direction in which to see the screen surface, the center of an eye-cup opening portion (6) on the light emission side of an ocular lens unit (2) is shifted from an optical axis (3) of the ocular lens unit (2). Thereby, an observer's eye is guided to a position detached from the position corresponding to the optical axis (3) to see the liquid crystal image screen surface (1) from an oblique direction. It has been thereby arranged to enable the liquid crystal image screen surface to be observed with an excellent contrast.
摘要翻译： 提供了一种用于摄像机装置中的电子取景器，其通过使LCD和眼镜透镜单元本身之间的相对位置可以降低旋转偏振特性，从而增强图像的对比度。 当液晶图像屏幕表面具有视角的特征时，可以看到该屏幕表面的对比度或亮度根据观看屏幕表面的方向而不同，眼杯开口部分的中心（< 在眼镜片单元（
2 ）的光出射侧的HIL> 6 ）从光轴（ 眼镜片单元（ 2 ）的 3 ）。 由此，观察者的眼睛被引导到从与光轴对应的位置（ 3 ）分离的位置，以观察液晶图像屏幕表面（ 1 ）。 由此，能够以良好的对比度观察液晶影像屏幕的表面 -
公开(公告)号：US07551366B2
公开(公告)日：2009-06-23
申请号：US12000605
申请日：2007-12-14
申请人： Mitsuhiro Suzaki , Yusuke Nanjo , Shinichi Arita , Koji Toyoda
发明人： Mitsuhiro Suzaki , Yusuke Nanjo , Shinichi Arita , Koji Toyoda
IPC分类号： G02B15/14
CPC分类号： G02B15/173 , G02B13/18
摘要： A zoom lens includes, in order from an object side, a first lens group having a positive refractive power and fixed in an optical axis direction, a second lens group having a negative refractive power and moving along an optical axis to zoom, a third lens group having a positive refractive power and fixed in the optical axis direction, and a fourth lens group having a positive refractive power and moving in a non straight line along the optical axis to compensate variations of an image formation position and compensate change of the image formation position caused by changes of an object distance.
摘要翻译： 变焦透镜从物体依次包括具有正折光力并沿光轴方向固定的第一透镜组，具有负折光力并沿着光轴移动的第二透镜组进行变焦，第三透镜 具有正折射光焦度并在光轴方向上固定的第一透镜组，以及具有正折光力并沿着光轴在非直线上移动的第四透镜组，以补偿图像形成位置的变化并补偿图像形成的变化 由物体距离变化引起的位置。
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公开(公告)号：US07463427B2
公开(公告)日：2008-12-09
申请号：US10542087
申请日：2003-12-12
申请人： Yusuke Nanjo , Shinichi Arita
发明人： Yusuke Nanjo , Shinichi Arita
CPC分类号： H04N5/23296 , G02B15/173
摘要： A zoom lens made up of a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, and a fourth lens group having positive refracting power, which are disposed in order from an object side, in which the first lens group and the third lens groups are stationary, and the zoom lens performs mainly variable power by shifting the second lens group in an optical axis direction, and performs correction for image position fluctuations and focusing by shifting the fourth lens group in the optical axis direction, is characterized in that the first lens group is composed of five lenses: a concave lens; a convex lens with a strong convexity facing to an image side; a cemented lens made up of a concave lens with a strong concavity facing to the image side, and a convex lens; and a convex lens with a strong convexity facing to the object side, which are disposed in order from the object side, and by satisfying each of the following conditional expressions: (1) 1.25
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公开(公告)号：US07450170B2
公开(公告)日：2008-11-11
申请号：US10892234
申请日：2004-07-16
CPC分类号： H04N5/238
摘要： When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.
摘要翻译： 当物体的亮度水平低于预定水平时，从虹膜开口去除ND滤光片以完全打开虹膜开口，并且当物体的亮度水平高于预定水平时，将ND滤光器放置在 虹膜开放以完全关闭虹膜开口。 当ND滤光器在完全打开状态和完全关闭状态之间移动时，通过控制虹膜叶片来产生对应于由于状态转变而抵消曝光改变量的量的曝光改变量。
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公开(公告)号：US06342973B1
公开(公告)日：2002-01-29
申请号：US09557293
申请日：2000-04-25
申请人： Syuichi Kikuchi , Yuichi Nakano , Atsuo Minato , Shinichi Arita , Yusuke Nanjo
发明人： Syuichi Kikuchi , Yuichi Nakano , Atsuo Minato , Shinichi Arita , Yusuke Nanjo
IPC分类号： G02B1514
CPC分类号： G02B15/173
摘要： A zoom lens comprising a first lens group having a positive refracting power and its position fixed, a second lens group having a negative refracting power and displacable mainly for magnification, a third lens group having a positive refracting power and its position fixed, and a fourth lens group having a positive refracting power and displacable mainly for correction of the focal position for magnification and focusing. The first lens group includes, viewed from an object, a cemented lens consisting of a first lens which is a concave meniscus lens having a convex surface facing the object side and a second lens which is a convex lens, and a third lens which is a convex meniscus lens having a convex surface facing the object side; the second lens group, viewed from an object, includes a fourth lens which is a concave meniscus lens having a convex surface facing the object side, and a cemented lens consisting of a fifth lens which is a both-side-concave lens, and a sixth lens which is a convex lens; the third lens group includes a seventh lens which is a convex lens; and the fourth lens group, viewed from an object, includes a cemented lens consisting of an eighth lens which is a convex lens having a convex surface facing the object side, a ninth lens which is a concave lens, and a tenth lens which is a convex lens, and wherein the third lens group includes at least one surface constituted by an aspherical surface and in the fourth lens group, at least the surface which is at the object side is constituted by an aspherical surface.
摘要翻译： 一种变焦透镜，包括具有正折射率的第一透镜组和其位置固定的第二透镜组，具有负折射率并主要放大的第二透镜组，具有正折射率的第三透镜组及其位置固定;以及第四透镜组 具有正折射力的透镜组，并且主要用于校正放大和聚焦的焦点位置。 从物体观察，第一透镜组包括由作为具有面向物体侧的凸面的凹面弯月形透镜的第一透镜和作为凸面透镜的第二透镜构成的胶合透镜，以及第三透镜， 凸凹面透镜，其具有面向物体侧的凸面; 从物体观察的第二透镜组包括：第四透镜，其是具有面向物体侧的凸面的凹弯月形透镜;以及胶合透镜，其由作为双侧凹透镜的第五透镜和 第六透镜是凸透镜; 第三透镜组包括作为凸透镜的第七透镜; 从物体观察的第四透镜组包括由作为凸面朝向物侧的凸透镜的第八透镜，作为凹透镜的第九透镜和作为凹透镜的第十透镜构成的胶合透镜， 并且其中所述第三透镜组包括由非球面构成的至少一个表面，并且在所述第四透镜组中，至少所述物体侧的表面由非球面构成。
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公开(公告)号：US20090046199A1
公开(公告)日：2009-02-19
申请号：US12222330
申请日：2008-08-07
申请人： Yusuke Nanjo
发明人： Yusuke Nanjo
CPC分类号： G02B15/173
摘要： An image-capture apparatus includes a variable magnification lens, imaging means for converting an image taken by the variable magnification lens into an electrical image signal, and imaging control means. By referring to a conversion coordinate coefficient, the image control means moves a point on the image and outputs the new image signal. In the variable magnification lens, in order from the object side, a first lens group having positive refractive power, a second lens group that has negative refractive power and performs a variable magnification action by shifting on an optical axis, a third lens group having positive refractive power, a fourth lens group that has negative refractive power and a fifth lens group having positive refractive power are arrayed.
摘要翻译： 图像捕获装置包括可变放大透镜，用于将由可变放大透镜拍摄的图像转换成电图像信号的成像装置和成像控制装置。 通过参照转换坐标系，图像控制装置移动图像上的点并输出新的图像信号。 在可变放大倍率透镜中，从物体侧开始，具有正折光力的第一透镜组，具有负折光力并通过在光轴上移动而执行可变放大倍数动作的第二透镜组，具有正光焦度的第三透镜组 排列具有负屈光力的第四透镜组和具有正屈光力的第五透镜组。
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公开(公告)号：US20080012963A1
公开(公告)日：2008-01-17
申请号：US11893904
申请日：2007-08-17
申请人： Yusuke Nanjo , Hitoshi Nakanishi
发明人： Yusuke Nanjo , Hitoshi Nakanishi
IPC分类号： H04N5/262
CPC分类号： G02B15/173 , G02B7/102 , G02B7/14 , G02B15/10
摘要： An image pickup apparatus having a plurality of image pickup modes and a zoom lens for use with the image pickup apparatus is configured such that, even if the dimension of an effective screen region of an image pickup element changes as a result of changeover of the image pickup mode, the change of the angle of view is moderated and good aberration correction can be achieved in any of the image pickup modes. In an image pickup apparatus (1), an additional lens set (G5) having a positive refractive power is positioned most adjacent the image side with respect to a zoom lens (2) for movement to and from a position on an optical axis of the zoom lens. Upon changeover of an image pickup mode, the additional lens set is moved to or away from the position on the optical axis to reduce or extend the focal length range of the zoom lens thereby to moderate the variation of the angle of view caused by a difference in dimension of the effective screen region of an image pickup element (12) when any different image pickup mode is selected. Further, the movement of the additional lens set to or from the position on the optical axis is detected to set the states of components in accordance with any image pickup mode.
摘要翻译： 具有多个图像拾取模式的图像拾取装置和与图像拾取装置一起使用的变焦透镜被配置为使得即使图像转换的结果，图像拾取元件的有效屏幕区域的尺寸变化 拾取模式，可以缓和视角的变化，并且可以在任何图像拾取模式中实现良好的像差校正。 在图像拾取装置（1）中，具有正折光力的附加透镜组（G 5）相对于变焦透镜（2）位于最靠近图像侧的位置，用于移动到来自光轴的光轴上的位置 变焦镜头。 在切换图像拾取模式时，附加透镜组移动到或远离光轴上的位置以减小或延长变焦透镜的焦距范围，从而调节由差异引起的视角的变化 当选择任何不同的图像拾取模式时，图像拾取元件（12）的有效屏幕区域的尺寸。 此外，检测附加透镜的设置在光轴上的位置或从光轴上的位置的移动，以根据任何图像拾取模式设置分量的状态。
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公开(公告)号：US20070126911A1
公开(公告)日：2007-06-07
申请号：US11598581
申请日：2006-11-14
申请人： Yusuke Nanjo
发明人： Yusuke Nanjo
IPC分类号： G02B13/16
CPC分类号： G02B15/177 , G02B5/04 , H04N5/2254
摘要： An image capture apparatus includes: a zoom lens arranged in a housing and including fixed lens groups, movable lens groups and at least three prisms; and an imager device arranged in the housing. The zoom lens includes: a fixed first lens group including a negative lens group having a first optical axis, a first prism approximately perpendicularly folding an optical axis, and a positive lens group having a second optical axis folded by the first prism; movable lens groups and at least one fixed lens group arranged along the second optical axis to perform a zooming action, an image plane position correcting action and a focusing action; and a second prism arranged on an image side relative to a movable lens group that is a closest to the image side among the plurality of movable lens groups for approximately perpendicularly folding the optical axis.
摘要翻译： 一种摄像装置，包括：配置在壳体中的变焦透镜，包括固定透镜组，可移动透镜组和至少三个棱镜; 以及布置在所述壳体中的成像器装置。 变焦透镜包括：固定的第一透镜组，包括具有第一光轴的负透镜组，大致垂直折叠光轴的第一棱镜和由第一棱镜折叠的第二光轴的正透镜组; 可移动透镜组和沿着第二光轴布置的至少一个固定透镜组，以执行缩放动作，图像平面位置校正动作和聚焦动作; 以及相对于多个可动透镜组中最靠近像侧的可移动透镜组而在像侧布置的用于大致垂直折叠光轴的第二棱镜。
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公开(公告)号：US20050046737A1
公开(公告)日：2005-03-03
申请号：US10892234
申请日：2004-07-16
CPC分类号： H04N5/238
摘要： When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.
摘要翻译： 当物体的亮度水平低于预定水平时，从虹膜开口去除ND滤光片以完全打开虹膜开口，并且当物体的亮度水平高于预定水平时，将ND滤光器放置在 虹膜开放以完全关闭虹膜开口。 当ND滤光器在完全打开状态和完全关闭状态之间移动时，通过控制虹膜叶片来产生对应于由于状态转变而抵消曝光改变量的量的曝光改变量。
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公开(公告)号：US5424869A
公开(公告)日：1995-06-13
申请号：US87102
申请日：1993-07-01
申请人： Yusuke Nanjo
发明人： Yusuke Nanjo
IPC分类号： G02B13/18 , G02B15/16 , G02B15/173 , G02B15/14
CPC分类号： G02B13/18 , G02B15/173
摘要： An inner focus type zoom lens is a nine lens system including third, fourth and seventh lenses which are plastic lenses including aspherical surfaces, and first, second, fifth, sixth, eighth and ninth lenses which are spherical glass lenses. This zoom lens system can reduce the manufacturing cost by employing the plastic lenses and eliminating aspherical glass surfaces. Moreover, this zoom lens system is superior in correction of aberrations and less susceptible to temperature changes.
摘要翻译： 内部焦点型变焦透镜是包括第三透镜，第四透镜和第七透镜的9透镜系统，其是包括非球面的塑料透镜以及作为球形玻璃透镜的第一，第二，第五，第六，第八和第九透镜。 该变焦透镜系统可以通过使用塑料透镜并消除非球面玻璃表面来降低制造成本。 此外，该变焦透镜系统在像差校正方面是优异的，并且对温度变化不太敏感。
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