公开(公告)号：US08154801B2

公开(公告)日：2012-04-10

申请号：US12801615

申请日：2010-06-17

申请人： Mitsuhiro Suzaki ,  Shinichi Arita ,  Takuya Anzawa

发明人： Mitsuhiro Suzaki ,  Shinichi Arita ,  Takuya Anzawa

IPC分类号： G02B27/64 ,  G02B15/14

CPC分类号： G02B15/173 ,  G02B7/028

摘要： A zoom lens includes, in order from an object side to an image side: a first lens group that has a positive refractive power and remains stationary in a direction of an optical axis; a second lens group that has a negative refractive power and is movable on the optical axis so as to perform a zoom operation; a third lens group that has a positive refractive power and remains stationary in the direction of the optical axis during zooming and focusing; a fourth lens group that has a positive refractive power and is movable on the optical axis so as to correct fluctuation in imaging position and correct change in imaging position caused by change in object distance; and a fifth lens group that has a positive refractive power and remains stationary in the direction of the optical axis.

摘要翻译： 变焦透镜从物体侧到像侧依次包括：具有正折光力并在光轴方向保持静止的第一透镜组; 第二透镜组，其具有负屈光力并且可在光轴上移动以执行变焦操作; 具有正屈光力并在变焦和聚焦期间在光轴方向上保持静止的第三透镜组; 第四透镜组，其具有正的折光力并且可以在光轴上移动，以便校正成像位置的波动，以及由于物距的变化引起的校正的成像位置的变化; 以及具有正屈光力并在光轴方向上保持静止的第五透镜组。

公开(公告)号：US20100315605A1

公开(公告)日：2010-12-16

申请号：US12918021

申请日：2009-02-16

申请人： Shinichi Arita

发明人： Shinichi Arita

IPC分类号： G03B21/28 ,  G03B21/14

CPC分类号： H04N9/317 ,  G02B3/14 ,  G02B26/0816 ,  G02B26/0875 ,  G03B21/005 ,  H04N9/3129

摘要： Provided is an image display apparatus which can reduce the influence of image quality degradation caused by a spot size on a screen generated when using a light source having a high directivity such as a laser beam and scan-type image formation means. The image display apparatus includes: a light source device (10) which emits light; scan-type image formation means (such as an MEMS mirror (14)) which forms an image on a screen (15); a variable focus device (13) arranged in the optical path of the light emitted from the light source device (10) to reach the image formation means; and control means which controls the variable focus device (13) so as to modify the spot size of the light beam projected onto the screen (15) in accordance with a projected image size or an user operation.

摘要翻译： 提供一种图像显示装置，其可以减少当使用具有高方向性的光源（例如激光束和扫描型图像形成装置）时产生的屏幕上的斑点尺寸引起的图像质量劣化的影响。 该图像显示装置包括：发光的光源装置（10） 在屏幕（15）上形成图像的扫描型图像形成装置（例如MEMS反射镜（14））; 设置在从所述光源装置（10）发射的光的光路中以到达所述图像形成装置的可变聚焦装置（13） 以及控制装置，其控制可变焦点装置（13），以便根据投影的图像尺寸或用户操作来修改投影到屏幕（15）上的光束的光斑尺寸。

公开(公告)号：US07706080B2

公开(公告)日：2010-04-27

申请号：US10589675

申请日：2005-10-04

申请人： Motoyuki Ohtake ,  Shinichi Arita

发明人： Motoyuki Ohtake ,  Shinichi Arita

IPC分类号： G02B15/14

CPC分类号： G02B15/173 ,  G02B27/646

摘要： To provide a zoom lens capable of achieving stable optical quality by inhibiting an effect of assemble errors during manufacturing. A zoom lens includes a positive first lens group G1, a negative second lens group G2, a positive third lens group G3, and a positive fourth lens group G4, which are arranged from an object side in that order, and during variation in lens position from a wide angle end state to a telescopic end state, G1 and G3 are fixed, G2 is moved toward an image side, G4 moves so as to compensate fluctuations in image-surface position due to the shift of G2, and an aperture diaphragm S is fixed adjacent to the object side of G3, etc. G2 includes a negative meniscus lens L21 with a concave surface opposing the image side and a cemented lens L22 of a biconcave lens and a positive lens with a convex surface opposing the object side, which are arranged from the object side in that order, and the negative meniscus lens is a compound lens of a glass lens and a resin lens PL formed adjacent to the image side of the glass lens, the lens surface adjacent to the image side of the resin lens is aspheric, and the conditional equation (1) below is satisfied: n2>1.75,   (1) where n2 is the average refractive index of glass constituting G2.

摘要翻译： 提供能够通过抑制制造过程中组装误差的影响而能够实现稳定的光学质量的变焦透镜。 变焦透镜包括从物体侧依次布置的正的第一透镜组G1，负的第二透镜组G2，正的第三透镜组G3和正的第四透镜组G4，以及在透镜位置的变化 从广角端状态到伸缩端状态，G1和G3是固定的，G2朝向图像侧移动，G4移动以补偿由于G2的偏移引起的图像表面位置的波动，以及孔径光阑S 被固定在G3的物体侧附近，G2包括具有与图像侧相对的凹面的负弯月形透镜L21和双凸透镜的胶合透镜L22和具有与物侧相对的凸面的正透镜， 从物体侧依次排列，负弯月形透镜是与玻璃透镜的像侧相邻形成的玻璃透镜和树脂透镜PL的复合透镜，与树脂的像侧相邻的透镜面 镜头是非球面的，而t 满足以下条件式（1）：n2> 1.75，（1）其中n2是构成G2的玻璃的平均折射率。

公开(公告)号：US07609460B2

公开(公告)日：2009-10-27

申请号：US12292366

申请日：2008-11-18

申请人： Mitsuhiro Suzaki ,  Yusuke Nanjo ,  Shinichi Arita

发明人： Mitsuhiro Suzaki ,  Yusuke Nanjo ,  Shinichi Arita

IPC分类号： G02B9/60

CPC分类号： G02B15/173 ,  G02B27/646

摘要： A zoom lens configured by arranging a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group in order from the object side to the image side, and further having an aperture diaphragm on the object side of the third lens group. In the first lens group, a first lens, a second lens, and a third lens are located in order from the object side to the image side. In the second lens group, a fourth lens, a fifth lens, and a sixth lens are located in order from the object side to the image side. The third lens group is made up of a seventh lens which is a convex lens, the fourth lens group is made up of at least two or more cemented lenses, the third lens group and the fourth lens group include at least one surface formed into an aspherical surface.

摘要翻译： 一种变焦透镜，其通过从物体侧到像侧依次排列第一透镜组，第二透镜组，第三透镜​​组，第四透镜组和第五透镜组而配置，并且还具有孔径光阑 第三透镜组的物体侧。 在第一透镜组中，从物体侧到像侧依次设置第一透镜，第二透镜和第三透镜。 在第二透镜组中，从物体侧到像侧依次设置第四透镜，第五透镜和第六透镜。 第三透镜组由作为凸透镜的第七透镜构成，第四透镜组由至少两个以上的胶合透镜构成，第三透镜​​组和第四透镜组包括形成为第一透镜的至少一个表面 非球面。

公开(公告)号：US07542212B2

公开(公告)日：2009-06-02

申请号：US11802320

申请日：2007-05-22

申请人： Koji Toyoda ,  Yusuke Nanjo ,  Shinichi Arita

发明人： Koji Toyoda ,  Yusuke Nanjo ,  Shinichi Arita

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens includes in order and from the side of an object, a first lens group having a positive refractive power and fixed in position, a second lens group having a negative refractive power and movable in position for providing mainly zooming, a third lens group having a positive refractive power and fixed in position, a fourth lens group having a positive refractive power and movable in position for performing a focal position correction due to the zooming and for focusing, and a fifth lens group including a single lens fixed in position.Each of the lens groups from the third lens group to the fifth lens group has at least one aspheric surface, and conditional equations (1) and (2) below are satisfied. |f4/f5|

摘要翻译： 变焦透镜依次包括具有正折光力并固定在位的第一透镜组，具有负屈光力并可在主要位置上进行放大的第二透镜组，第三透镜​​组 具有正屈光力并固定在位置的第四透镜组，具有正屈光力并可移动的位置，用于由于变焦和聚焦而进行焦点位置校正，以及包括固定在位的单透镜的第五透镜组。 从第三透镜组到第五透镜组的透镜组中的每一个具有至少一个非球面，并且满足下面的条件方程（1）和（2）。 <？in-line-formula description =“In-line formula”end =“lead”？> | f4 / f5 | <0.12（3）<？in-line-formula description =“In-line Formulas”end = tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> 0.9 其中f4是第四透镜组的焦距，f5是第五透镜组的焦距，β5是第五透镜组的横向倍率。

公开(公告)号：US20090109545A1

公开(公告)日：2009-04-30

申请号：US10589675

申请日：2005-10-04

申请人： Motoyuki Ohtake ,  Shinichi Arita

发明人： Motoyuki Ohtake ,  Shinichi Arita

IPC分类号： G02B15/16

CPC分类号： G02B15/173 ,  G02B27/646

摘要： To provide a zoom lens capable of achieving stable optical quality by inhibiting an effect of assemble errors during manufacturing. A zoom lens includes a positive first lens group G1, a negative second lens group G2, a positive third lens group G3, and a positive fourth lens group G4, which are arranged from an object side in that order, and during variation in lens position from a wide angle end state to a telescopic end state, G1 and G3 are fixed, G2 is moved toward an image side, G4 moves so as to compensate fluctuations in image-surface position due to the shift of G2, and an aperture diaphragm S is fixed adjacent to the object side of G3, etc. G2 includes a negative meniscus lens L21 with a concave surface opposing the image side and a cemented lens L22 of a biconcave lens and a positive lens with a convex surface opposing the object side, which are arranged from the object side in that order, and the negative meniscus lens is a compound lens of a glass lens and a resin lens PL formed adjacent to the image side of the glass lens, the lens surface adjacent to the image side of the resin lens is aspheric, and the conditional equation (1) below is satisfied: n2>1.75,   (1) where n2 is the average refractive index of glass constituting G2.

摘要翻译： 提供能够通过抑制制造过程中组装误差的影响而能够实现稳定的光学质量的变焦透镜。 变焦透镜包括从物体侧依次布置的正的第一透镜组G1，负的第二透镜组G2，正的第三透镜组G3和正的第四透镜组G4，以及在透镜位置的变化 从广角端状态到伸缩端状态，G1和G3是固定的，G2朝向图像侧移动，G4移动以补偿由于G2的偏移引起的图像表面位置的波动，以及孔径光阑S 被固定在G3的物体侧附近，G2包括具有与图像侧相对的凹面的负弯月形透镜L21和双凸透镜的胶合透镜L22和具有与物侧相对的凸面的正透镜， 从物体侧依次排列，负弯月形透镜是与玻璃透镜的像侧相邻形成的玻璃透镜和树脂透镜PL的复合透镜，与树脂的像侧相邻的透镜面 镜头是非球面的，而t 满足下列条件式（1）：<？in-line-formula description =“In-line formula”end =“lead”？> n2> 1.75，（1）<？in-line-formula description =“In 线公式“end =”tail“？>其中n2是构成G2的玻璃的平均折射率。

公开(公告)号：US07525729B2

公开(公告)日：2009-04-28

申请号：US11902724

申请日：2007-09-25

申请人： Mitsuhiro Suzaki ,  Yusuke Nanjo ,  Atsuo Minato ,  Shinichi Arita

发明人： Mitsuhiro Suzaki ,  Yusuke Nanjo ,  Atsuo Minato ,  Shinichi Arita

IPC分类号： G02B27/64 ,  G02B15/14

CPC分类号： H04N5/2254 ,  G02B15/173 ,  H04N5/23248 ,  H04N5/23258 ,  H04N5/23287

摘要： There is provided a zoom lens having, in an order of an object-to-image direction, a first lens group having a positive refractive power and fixed with respect to an image plane; a second lens group having a negative refractive power; a third lens group having a positive refractive power and fixed with respect to an optical axis direction; a fourth lens group having a positive refractive power; and a fifth lens group having a positive refractive power and fixed with respect to the optical axis direction. The fifth lens group is composed of a fifth-a lens group having a negative refractive power; a fifth-b lens group having a positive refractive power; and a fifth-c lens group having a positive refractive power, arranged in the order of the object-to-image direction.

摘要翻译： 提供了一种变焦透镜，具有按照物体对图像方向的顺序具有相对于像面固定的正折光力的第一透镜组; 具有负屈光力的第二透镜组; 具有正屈光力并相对于光轴方向固定的第三透镜组; 具有正折射光焦度的第四透镜组; 以及具有正折光力并相对于光轴方向固定的第五透镜组。 第五透镜组由具有负屈光力的第五透镜组构成; 具有正屈光力的第五-B透镜组; 以及具有正屈光力的第五-C透镜组，按照物体对图像方向的顺序排列。

公开(公告)号：US06738164B1

公开(公告)日：2004-05-18

申请号：US09501521

申请日：2000-02-09

申请人： Hidekazu Shimomura ,  Kazuyuki Kondo ,  Hiroshi Sato ,  Shinichi Arita

发明人： Hidekazu Shimomura ,  Kazuyuki Kondo ,  Hiroshi Sato ,  Shinichi Arita

IPC分类号： H04N104

CPC分类号： H04N1/488 ,  H04N1/191

摘要： A color image reading apparatus comprises at least three line sensors arranged at regular intervals along the main scanning direction, an imaging optical system for focussing a light beam on the line sensors, and a diffraction grating for separating a light beam coming from a color image into a plurality of light beams having respective wavelengths different from each other. The imaging optical system includes at least one lens and the optical axis of the lens is eccentrically disposed relative to that of the optical system as a whole so as for the plurality of light beams to be focussed on the respective line sensors.

摘要翻译： 彩色图像读取装置包括沿主扫描方向以规则间隔布置的至少三行线传感器，用于将光束聚焦在线传感器上的成像光学系统和用于将来自彩色图像的光束分离的衍射光栅 具有彼此不同的波长的多个光束。 成像光学系统包括至少一个透镜，并且透镜的光轴相对于整个光学系统的光轴偏心地布置，以便将多个光束聚焦在各个线传感器上。

公开(公告)号：US06359706B1

公开(公告)日：2002-03-19

申请号：US08996314

申请日：1997-12-22

申请人： Shinichi Arita ,  Kazuyuki Kondo ,  Hidekage Sato

发明人： Shinichi Arita ,  Kazuyuki Kondo ,  Hidekage Sato

IPC分类号： H04N104

CPC分类号： H04N1/401

摘要： The invention discloses an image reading apparatus in which a linear image sensor is provided in the vicinity of an imaging optical system and the main scanning operation is achieved by electronic scanning of the linear image sensor in the longitudinal direction thereof while the sub scanning operation is achieved by the relative movement of the linear image sensor and the image formed by the imaging optical system with plural scanning speed and the image information is outputted by communication between the image process means for processing the image obtained by each main scanning operation and the external equipment, the apparatus is featured by fetching plural shading data while a scanning motor in the sub scanning direction is driven with such plural scanning speeds.

摘要翻译： 本发明公开了一种图像读取装置，其中在成像光学系统附近设置线性图像传感器，并且主扫描操作通过线性图像传感器在其纵向上的电子扫描来实现，同时实现副扫描操作 通过线性图像传感器和由成像光学系统形成的具有多个扫描速度的图像的相对运动，并且通过用于处理由每个主扫描操作获得的图像和外部设备的图像的图像处理装置之间的通信来输出图像信息， 该装置的特征在于以这样的多个扫描速度驱动副扫描方向的扫描电动机的多个阴影数据。

公开(公告)号：US06307661B1

公开(公告)日：2001-10-23

申请号：US09550317

申请日：2000-04-14

申请人： Kazuo Fujibayashi ,  Shinichi Arita

发明人： Kazuo Fujibayashi ,  Shinichi Arita

IPC分类号： G02B2608

CPC分类号： G02B13/24 ,  H04N1/486

摘要： A color image reading apparatus comprises at least three line sensors arranged at predetermined intervals in the sub-scanning direction, an imaging optical system including at least one anamorphic lens for forming an image of an original on the line sensors, and a drive means for driving the original and the line sensors relative to each other in the sub-scanning direction. Each line sensor has a plurality of light receiving pixels arranged in the main-scanning direction. The apparatus satisfies the requirement expressed by the formula |Dis(s)|

摘要翻译： 彩色图像读取装置包括以副扫描方向以预定间隔布置的至少三行线传感器，包括用于在线传感器上形成原稿图像的至少一个变形透镜的成像光学系统，以及用于驱动 原稿和线传感器在副扫描方向上相对于彼此。 每个线传感器具有沿主扫描方向布置的多个光接收像素。 该装置满足由公式| Dis（s）| <0.25W / S0表示的要求，其中S0是相邻定位的线传感器之间的距离，W是副扫描方向上的受光像素的宽度和Dis s）是成像光学系统在副扫描方向上的失真分量。