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公开(公告)号：US20040264003A1
公开(公告)日：2004-12-30
申请号：US10860134
申请日：2004-06-04
发明人： Takayuki Noda
IPC分类号： G02B015/14 , G02B003/02 , G02B013/18
CPC分类号： G02B13/0035 , G02B3/04 , G02B13/18
摘要： An imaging lens includes, in order from the object side: a first lens component with a convex surface on the object side near the optical axis; a second lens component with a meniscus shape and a concave surface on the object side near the optical axis; and, a third lens component of positive refractive power with a convex surface on the object side. The first and second lens components may include aspheric surfaces and be made of plastic, and the third lens component may be made of glass. A stop may be placed on the object side of the first lens component or between the first lens component and the second lens component. Each lens component that forms the imaging lens may consist of a lens element. Specified conditions are satisfied in order to reduce aberrations and to insure that a sufficient back focus is provided.
摘要翻译： 成像透镜从物体侧依次包括：物体侧的靠近光轴的凸面的第一透镜部件; 具有弯月面形状的第二透镜部件和物体侧的靠近光轴的凹面; 以及在物体侧具有凸面的正屈光力的第三透镜部件。 第一和第二透镜部件可以包括非球面并且由塑料制成，并且第三透镜部件可以由玻璃制成。 可以在第一透镜部件的物体侧或第一透镜部件和第二透镜部件之间放置止动件。 形成成像透镜的每个透镜部件可以由透镜元件组成。 满足指定条件以减少像差并确保提供足够的后焦点。
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公开(公告)号：US20040263998A1
公开(公告)日：2004-12-30
申请号：US10882700
申请日：2004-06-29
发明人： Hirotsugu Terada
IPC分类号： G02B015/14 , G02B007/02
CPC分类号： G02B7/10
摘要： A rear-focus zoom lens device includes a wide-angle direction rotation restricting unit and a telephoto direction rotation restricting unit for separately restricting rotations of a zoom ring in a wide-angle direction and a telephoto direction and for separately canceling the restricting operations at any rotational positions of the zoom ring in the wide-angle direction and the telephoto direction, respectively, when rotating the zoom ring in the wide-angle direction and the telephoto direction, respectively.
摘要翻译： 后焦点变焦透镜装置包括广角方向旋转限制单元和长焦方向旋转限制单元，用于分别限制变焦环在广角方向和远摄方向上的旋转，并分别取消任何限制操作 当在广角方向和长焦方向上旋转变焦环时，分别在广角方向和远摄方向上的变焦环的旋转位置。
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公开(公告)号：US20040263996A1
公开(公告)日：2004-12-30
申请号：US10866866
申请日：2004-06-15
申请人： Nikon Corporation
发明人： Akihiko Obama
IPC分类号： G02B015/14
CPC分类号： G02B15/177
摘要： According to one aspect of the present invention, a zoom lens system includes, in order from an object along an optical axis, a first lens group having negative refractive power, and a second lens group having positive refractive power. A distance between the first lens group and the second lens group decreases when the state of lens group positions varies from a wide-angle end state to a telephoto end state. The second lens group is composed of, in order from the object, a first lens having positive refractive power, a first cemented lens having negative refractive power, and a second cemented lens having positive refractive power. The first cemented lens in the second lens group is constructed by a positive lens cemented with a negative lens. The second cemented lens in the second lens group is constructed by a negative lens cemented with a positive lens.
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公开(公告)号：US20040257672A1
公开(公告)日：2004-12-23
申请号：US10754047
申请日：2004-01-07
申请人： LG Electronics Inc.
发明人： Youngjoo Yee , Chang-Hyeon Ji , Seong-Hyok Kim
IPC分类号： G02B015/14
CPC分类号： G02B26/0875
摘要： A micro actuator for controlling a focal depth includes: a lens for forming a focal pint by focusing light coming from a light source; a lens mounting unit having a lens mounted therein and allowing the lens to move in one axial direction; and an electromagnetic force generator consisting of a constant magnetic field generating member having a magnetic field in a predetermined direction and an variable magnetic field generating member for changing direction and strength of a magnetic field according to direction and amount of a current, installed at and around the lens mounting unit and causing the lens to move in a direction of an electromagnetic force generated by interaction of the two magnetic field generating members. The micro actuator for controlling a focal depth can be fabricated in a ultra-compact size, available for a mass production, and has a fast response speed.
摘要翻译： 用于控制焦深的微致动器包括：用于通过聚焦来自光源的光形成焦点品脱的透镜; 透镜安装单元，其具有安装在其中的透镜，并允许透镜沿一个轴向移动; 以及电磁力发生器，其由具有预定方向的磁场的恒定磁场产生部件和可变磁场产生部件组成，用于根据安装在其周围的电流的方向和量来改变磁场的方向和强度 透镜安装单元，并且使透镜沿着由两个磁场产生部件的相互作用产生的电磁力的方向移动。 用于控制焦深的微型致动器可以制造成超小型尺寸，可用于批量生产，并且具有快速的响应速度。
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公开(公告)号：US20040257671A1
公开(公告)日：2004-12-23
申请号：US10853669
申请日：2004-05-25
发明人： Sung-Woo Kim , Young-Woo Park
IPC分类号： G02B015/14
CPC分类号： G02B13/18 , G02B15/177
摘要： The zoom lens comprises, in order from an object side: a first lens group having a negative refractive power, the first lens group including a first lens having a negative refractive power, and a second lens having a positive refractive power; a second lens group having a positive refractive power, the second lens group including a third lens having a positive refractive power, and a fourth lens having a negative refractive power; and a third lens group having a positive refractive power, the third lens group including a fifth lens having a positive refractive power, the zoom lens satisfying the following conditional expression: 1 - 3.0
摘要翻译： 变焦透镜从物体侧依次包括具有负屈光力的第一透镜组，第一透镜组包括具有负折光力的第一透镜和具有正折光力的第二透镜; 具有正屈光力的第二透镜组，所述第二透镜组包括具有正折光力的第三透镜和具有负屈光力的第四透镜; 和具有正折光力的第三透镜组，所述第三透镜组包括具有正屈光力的第五透镜，所述变焦透镜满足以下条件表达式：
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公开(公告)号：US20040252382A1
公开(公告)日：2004-12-16
申请号：US10457434
申请日：2003-06-10
发明人： Tetsuo Nagata
IPC分类号： G02B015/14
CPC分类号： G02B27/0068 , G02B15/177 , G02B26/0825
摘要： A zoom optical system includes at least two optical-element groups and a variable optical-property optical element. The two optical-element groups are movable in a magnification change and have a magnification varying function or a compensating function for compensating for a shift of an image surface caused by the magnification change. The optical element has a focusing function and is disposed on the image side of the optical-element groups. According to this configuration of the zoom optical system, it is possible to attain a zoom optical system and an imaging apparatus using the zoom optical system that have as small a number of movable lenses as possible, are very small in size, and work with an extremely low power consumption and low operation noise.
摘要翻译： 变焦光学系统包括至少两个光学元件组和可变光学特性光学元件。 两个光学元件组可以以倍率变化的方式移动，并且具有放大率变化功能或用于补偿由放大率变化引起的图像偏移的补偿功能。 光学元件具有聚焦功能，并且设置在光学元件组的像侧。 根据变焦光学系统的这种配置，可以获得使用具有尽可能少的可移动透镜的变焦光学系统的变焦光学系统和成像装置，其尺寸非常小，并且可以使用 功耗极低，运行噪音低。
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公开(公告)号：US20040252381A1
公开(公告)日：2004-12-16
申请号：US10825209
申请日：2004-04-16
发明人： Satoru Takagi
IPC分类号： G02B027/14 , G02B015/14
CPC分类号： G02B15/14
摘要： A documentation camera is capable of correcting a trapezoidal distortion and also adjusting the central position of a displayed image of a document when the image is zoomed in at the time the image is captured obliquely to the document. The zooming magnification of a zoom lens in a lens unit is detected by a zooming magnification detector, and a CPU searches a ROM based on the detected zooming magnification to read, from the ROM, parameters required in a trapezoidal distortion correcting process and also parameters required to adjust the central position of the displayed image. The CPU transmits the former parameters to a trapezoidal distortion correcting circuit to perform the trapezoidal distortion correcting process and also transmits the latter parameters to a shifting circuit to adjust the central position of the displayed image.
摘要翻译： 文档照相机能够校正梯形失真，并且当图像被倾斜地收录到文档时，当图像被放大时，还可以调整文档的显示图像的中心位置。 透镜单元中的变焦透镜的变焦倍率由变焦倍率检测器检测，CPU根据检测到的变焦倍率来检索ROM，从ROM读取梯形失真校正处理中所需的参数，并且还需要参数 调整显示图像的中心位置。 CPU将先前的参数发送到梯形失真校正电路以执行梯形失真校正处理，并且将后面的参数发送到移位电路以调整显示图像的中心位置。
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公开(公告)号：US20040223233A1
公开(公告)日：2004-11-11
申请号：US10834810
申请日：2004-04-28
发明人： Akihisa Horiuchi
IPC分类号： G02B015/14
CPC分类号： G02B27/646 , G02B15/173
摘要： A zoom lens system is disclosed, comprising, in order from an object side to an image side, a first lens unit of positive optical power, a second lens unit of negative optical power, a third lens unit of positive optical power, and a fourth lens unit of positive optical power, wherein the second and fourth lens units are moved during zooming. The third lens unit consists of a first lens subunit of positive optical power, an aperture stop, and a second lens subunit having one or more negative lens elements and one or more positive lens elements, in order from the object to the image sides. Optical parameters including the focal length of each lens unit, lens shapes, the lens structure of each lens unit are specified to realize a zoom lens system with a smaller size of the entire lens system and higher optical performance.
摘要翻译： 公开了一种变焦透镜系统，其从物体侧到像侧依次包括正光焦度的第一透镜单元，负光焦度的第二透镜单元，正光焦度的第三透镜单元和第四透镜单元 具有正光焦度的透镜单元，其中第二和第四透镜单元在变焦期间移动。 第三透镜单元由从物体到像侧的顺序由正光焦度的第一透镜子单元，孔径光阑和具有一个或多个负透镜元件和一个或多个正透镜元件的第二透镜子单元组成。 指定包括每个透镜单元的焦距，透镜形状，每个透镜单元的透镜结构的光学参数以实现具有整个透镜系统的较小尺寸的变焦透镜系统和更高的光学性能。
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公开(公告)号：US20040223231A1
公开(公告)日：2004-11-11
申请号：US10839145
申请日：2004-05-05
发明人： Makoto Sekita
IPC分类号： G02B015/14
CPC分类号： G02B15/177
摘要： A zoom lens system is disclosed which includes a first lens unit with negative optical power, a second lens element with positive optical power, and a third lens element with positive optical power, arranged in that order from an object side to an image side. The zoom lens system performs zooming by changing distances between the lens units. By configuring the first lens unit of a meniscus-shaped negative lens element whose convex surface faces the object side and a positive lens element, and by setting the refractive indices of the lens elements to appropriate values, a zoom lens system is realized, which has a small number of constituent lenses, which is compact and which has an excellent optical performance.
摘要翻译： 公开了一种变焦透镜系统，其包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜元件和具有正光焦度的第三透镜元件，其从物体侧到像侧依次布置。 变焦镜头系统通过改变镜头单元之间的距离进行变焦。 通过将凸面朝向物体侧的弯月形负透镜元件的第一透镜单元和正透镜元件配置，并且通过将透镜元件的折射率设定为适当值，实现变焦透镜系统，其具有 少数构成透镜，其结构紧凑，具有优异的光学性能。
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公开(公告)号：US20040212905A1
公开(公告)日：2004-10-28
申请号：US10846563
申请日：2004-05-17
申请人： Olympus Corporation
发明人： Takayoshi Togino
IPC分类号： G02B015/14
CPC分类号： G02B17/02
摘要： The present invention relates to a high-performance image-forming optical system made compact and thin by folding an optical path using reflecting surfaces arranged to minimize the number of reflections. A prism member 10 has a first entrance surface 11, first to fourth reflecting surfaces 12 to 15, and a first exit surface 16. An optical path incident on the first reflecting surface 12 and an optical path reflected from the second reflecting surface 13 form intersecting optical paths. An optical path incident on the third reflecting surface 14 and an optical path reflected from the fourth reflecting surface 15 form intersecting optical paths. At least either one of the first reflecting surface 12 and the second reflecting surface 13 and at least either one of the third reflecting surface 14 and the fourth reflecting surface 15 have a rotationally asymmetric curved surface configuration that gives a power to a light beam and corrects aberrations due to decentration. An intermediate image plane is formed between the first reflecting surface 12 and the fourth reflecting surface 15.
摘要翻译： 本发明涉及一种高性能的成像光学系统，其通过使用设置成使反射次数最小化的反射表面折叠光路而紧凑且薄。 棱镜部件10具有第一入射面11，第一至第四反射面12〜15以及第一出射面16.入射到第一反射面12的光路和从第二反射面13反射的光路形成相交 光路。 入射在第三反射面14上的光路和从第四反射面15反射的光路形成交叉光路。 第一反射表面12和第二反射表面13中的至少一个以及第三反射表面14和第四反射表面15中的至少一个具有向光束提供功率的旋转非对称曲面构造，并且校正 由于偏心造成的畸变。 在第一反射面12和第四反射面15之间形成中间像面。
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