公开(公告)号：US06825994B2

公开(公告)日：2004-11-30

申请号：US10421688

申请日：2003-04-24

申请人： Akira Harada

发明人： Akira Harada

IPC分类号： G02B934

CPC分类号： G02B15/173 ,  G02B27/646

摘要： In a photographic optical system disclosed in the present invention, there are provided a first focusing part for focusing while exposure is not performed on a light-sensitive surface and a second focusing part for focusing while exposure is performed on the light-sensitive surface, wherein the second focusing part correct the displacement in focal position during exposure.

摘要翻译： 在本发明公开的照相光学系统中，提供了一种用于在不对光敏表面进行曝光时聚焦的第一聚焦部分和在感光表面上进行曝光时聚焦的第二聚焦部分，其中 第二聚焦部分在曝光期间校正焦点位置的位移。

公开(公告)号：US06181488B2

公开(公告)日：2001-01-30

申请号：US09562692

申请日：2000-05-02

申请人： Shuji Yoneyama ,  Nobutaka Minefuji

发明人： Shuji Yoneyama ,  Nobutaka Minefuji

IPC分类号： G02B934

CPC分类号： G02B13/24 ,  G02B9/08

摘要： A photographic lens comprising: a front lens group and a rear lens group that are arranged in order from the object side; wherein the front lens group comprises, in order from the object side, a first lens element which is a positive meniscus lens having a convex surface facing the object side, a second lens element which is a positive meniscus lens having a convex surface facing the object side, and a third lens element that is cemented to the second lens element, the third lens element being a negative meniscus lens having a convex surface facing the object side; wherein said rear lens group comprises, in order from the object side, a fourth lens element which is a positive meniscus lens having a convex surface facing the image side; a fifth lens element which is a negative meniscus lens having a concave surface facing the object side; a sixth lens element that is cemented to the fifth lens element, the sixth lens element being a positive meniscus lens having a convex surface facing the image side; and wherein the front lens group and the rear lens group are moved toward the object side so that the distance between the front and rear lens groups more increases when a focusing operation is performed on the object at a closer object distance than when a focusing operation is performed on the object at a longer object distance.

摘要翻译： 一种照相镜头，包括：从物体侧依次布置的前透镜组和后透镜组; 其特征在于，所述前透镜组从物体侧起依次包括作为朝向物体侧的凸面的正弯月形透镜的第一透镜要素，具有朝向物体的凸面的正弯月形透镜的第二透镜要素 所述第三透镜元件是与所述第二透镜元件接合的第三透镜元件，所述第三透镜元件是具有朝向所述物体侧的凸表面的负弯月形透镜; 其特征在于，所述后透镜组从物体侧开始依次包括作为面朝向像侧的凸面的正弯月形透镜的第四透镜要素; 第五透镜元件，其是具有面向物体侧的凹面的负弯月形透镜; 第六透镜元件，其胶合到第五透镜元件，第六透镜元件是具有面向图像侧的凸面的正弯月形透镜; 并且其中所述前透镜组和所述后透镜组朝向所述物体侧移动，使得当在距物体距离更近的对象距离处执行聚焦操作时，前聚焦操作与聚焦操作之间的距离比聚焦操作 在较长物体距离上对物体执行。

公开(公告)号：US06829106B2

公开(公告)日：2004-12-07

申请号：US10641052

申请日：2003-08-15

申请人： Masaru Eguchi

发明人： Masaru Eguchi

IPC分类号： G02B934

CPC分类号： G02B15/173

摘要： A high zoom-ratio zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, and a negative fourth lens group. Zooming is performed by moving each of the lens groups along the optical axis.

摘要翻译： 高倍率变焦透镜系统包括正的第一透镜组，负的第二透镜组，正的第三透镜组和负的第四透镜组。 通过沿着光轴移动每个透镜组来进行变焦。

公开(公告)号：US06288850B1

公开(公告)日：2001-09-11

申请号：US09510293

申请日：2000-02-22

申请人： Ryoko Otomo

发明人： Ryoko Otomo

IPC分类号： G02B934

CPC分类号： G02B9/34 ,  G02B13/24

摘要： A bright image readout lens having a wider angle of view comprises, successively from the object side, a first lens L1 made of a positive meniscus lens having a convex surface directed onto the object side, a second lens L2 made of a biconcave lens, a third lens L3 made of a biconvex lens, and a fourth lens L4 made of a negative meniscus lens having a convex surface directed onto the imaging surface side, wherein at least one surface in at least one of the first lens L1 and third lens L3 is an aspheric surface, and wherein a stop is disposed between the second lens L2 and the third lens L3. This image readout lens favorably corrects various kinds of aberration.

摘要翻译： 具有宽视角的明亮图像读出透镜从物体侧依次包括由具有指向物体侧的凸面的正弯月形透镜制成的第一透镜L1，由双凹透镜构成的第二透镜L2， 由双凸透镜制成的第三透镜L3和由具有指向成像表面侧的凸表面的负弯月形透镜制成的第四透镜L4，其中第一透镜L1和第三透镜L3中的至少一个中的至少一个表面是 非球面表面，并且其中止动件设置在第二透镜L2和第三透镜L3之间。 该图像读出透镜有利地校正各种像差。

公开(公告)号：US06762890B2

公开(公告)日：2004-07-13

申请号：US10358237

申请日：2003-02-05

申请人： Kenichi Sato ,  Tetsuya Ori

发明人： Kenichi Sato ,  Tetsuya Ori

IPC分类号： G02B934

CPC分类号： G02B9/34 ,  G02B13/00 ,  G02B13/22

摘要： A single focus lens is composed of four lens components of negative, positive, negative and positive refractive power, respectively, in order from the object side. The first lens, in order from the object side, has a concave surface on the image side, and a stop is positioned between the first lens and the second lens. The second lens has a convex surface on the object side, the third lens has a concave surface on the object side, and the fourth lens has a convex, aspherical surface on the image side such that the refractive power of the fourth lens becomes weaker towards the edge of the lens. Specified conditions are preferably satisfied in order to provide favorable correction of aberrations.

摘要翻译： 单焦点透镜分别由物体侧依次由负，正，负和正屈光力的四个透镜分量组成。 从物体侧开始，第一透镜在图像侧具有凹面，并且止挡位于第一透镜和第二透镜之间。 第二透镜在物体侧具有凸面，第三透镜​​在物体侧具有凹面，第四透镜在像侧具有凸形非球面，使得第四透镜的屈光力朝向 镜片的边缘。 为了提供有利的像差校正，优选满足规定的条件。

公开(公告)号：US06650487B2

公开(公告)日：2003-11-18

申请号：US10093384

申请日：2002-03-11

申请人： Masao Mori

发明人： Masao Mori

IPC分类号： G02B934

CPC分类号： G02B9/34 ,  G02B9/36

摘要： A color image readout lens having four lens groups of positive, positive or negative, negative, and positive refractive power, respectively, in order from the object side. The first lens group is formed of a first lens element having a convex surface on the object side. The second lens group has a convex surface of the object side and is formed of a biconvex lens element that is cemented to a biconcave lens element. The third lens group is formed of a fourth lens element that is cemented to a fifth lens element, with the fifth lens element having positive refractive power and a convex surface on the image side. A fourth lens group is formed of a sixth lens element having a convex surface on the image side. Various conditions are satisfied in order to favorably correct the various aberrations.

公开(公告)号：US06417975B1

公开(公告)日：2002-07-09

申请号：US09474026

申请日：1999-12-28

申请人： Masashi Isono

发明人： Masashi Isono

IPC分类号： G02B934

CPC分类号： G02B13/04 ,  G02B9/60

摘要： A taking lens system has, from the object side, a front lens unit including a first lens element and a second lens element, an aperture stop, and a rear lens unit including a third positive lens element, a fourth negative lens element, and a fifth positive lens element. In the taking lens system, the following condition is fulfilled: 0.3

摘要翻译： 摄像透镜系统从物体侧具有包括第一透镜元件和第二透镜元件的前透镜单元，孔径光阑以及包括第三正透镜元件，第四负透镜元件和第三透镜元件的后透镜单元 第五个正透镜元件。 在拍摄镜头系统中，满足以下条件：其中F表示整个拍摄镜头系统的焦距; 而F345表示第三至第五透镜元件的复合焦距。

公开(公告)号：US06819508B2

公开(公告)日：2004-11-16

申请号：US10335648

申请日：2002-12-30

申请人： Ching-Fa Chiang

发明人： Ching-Fa Chiang

IPC分类号： G02B934

CPC分类号： G02B7/022 ,  G02B7/026

摘要： An insertion type lens assembly for an optical system which connects a plastic lens and a plastic lens, a plastic lens and a glass lens, or a plastic lens and a barrel. A separation mold surface is located different sides, and a spacer is located between the lenses. The concentric contact plane is located at the inner periphery of the lens core or the sleeve. The vertical contact plane is located at the inner periphery of the lens core or the machining surface of the sleeve. Such that the present invention can avoid hairs on the separation mold surface and increases the precision of the shape of the surface of insert.

摘要翻译： 一种用于连接塑料透镜和塑料透镜，塑料透镜和玻璃透镜，或塑料透镜和镜筒的光学系统的插入式透镜组件。 分离模具表面位于不同的侧面，并且间隔件位于透镜之间。 同心接触面位于透镜芯或套筒的内周。 垂直接触面位于透镜芯的内周或套筒的加工面上。 从而本发明可以避免分离模具表面上的毛发并且增加插入物表面的形状的精度。

公开(公告)号：US06775074B2

公开(公告)日：2004-08-10

申请号：US10305090

申请日：2002-11-27

申请人： Takashi Kasahara

发明人： Takashi Kasahara

IPC分类号： G02B934

CPC分类号： G02B13/0035 ,  G02B9/34 ,  G02B13/006 ,  G02B13/0065 ,  G02B13/06

摘要： A compact optical system includes a reduced number of lens elements with a bendable optical path and so is compatible with miniature image pickup devices. The image pickup lens includes, in order from its object side, a first lens element having a negative refracting power, a second lens element having positive refracting power, a stop, a third lens element having a negative refractive power and a fourth lens element having positive refracting power, and satisfies the following conditions (1) and (2) 50>&ngr;d1−&ngr;d2>10  (1) 2>f/f3>0.35  (2) where &ngr;d1 is the d-line reference Abbe number of the first lens element, &ngr;d2 is the d-line reference Abbe number of the second lens element, f is the focal length of the image pickup lens, and f3 is the composite focal length of the third and fourth lens elements. Between the first and the second lens element there is interposed a reflecting surface.

摘要翻译： 紧凑的光学系统包括具有可弯曲光路的少数透镜元件，因此与微型图像拾取装置兼容。 图像拾取透镜从其物体侧依次包括具有负折射率的第一透镜元件，具有正折射率的第二透镜元件，具有负屈光力的第三透镜元件和具有负屈光力的第四透镜元件，以及具有 正折射率，并且满足以下条件（1）和（2）其中nud1是第一透镜元件的d线参考阿贝数，nud2是第二透镜元件的d线参考阿贝数，f是 图像拾取透镜的焦距，f3是第三和第四透镜元件的复合焦距。 在第一和第二透镜元件之间插入有反射表面。

公开(公告)号：US06545802B2

公开(公告)日：2003-04-08

申请号：US09197590

申请日：1998-11-23

申请人： Jan Hoogland

发明人： Jan Hoogland

IPC分类号： G02B934

CPC分类号： G02B13/0095 ,  G02B23/2407 ,  G02B23/243 ,  G02B23/2446

摘要： Optical systems for endoscopes, borescopes, dental scopes, and the like which are characterized by having three groups of lenses of positive optical power and an external entrance pupil. Typically, all three groups of lenses are displaced from the pupil and focal planes. As a consequence, the displaced groups take part in the image transfer as well as in the pupil transfer. The optical power requirements can thus be shifted from one group to another, distributing as well as reducing the overall power requirement. Moreover, the aberration correction can also be shared between these groups. The first group, which conventionally has the highest optical power, and consequently a large amount of aberrations to be corrected, can in this way transfer some of the optical aberration correction to the other groups. The sharing of the optical functions and aberration correction results in a fully integrated optical system. The reduction in the total amount of optical power is so large that a line-of-sight deviating prism can be readily accommodated between the entrance pupil and the first lens group. The resulting simplicity of the optical system makes it suitable as a disposable item.

摘要翻译： 用于内窥镜，内窥镜，牙科镜等的光学系统，其特征在于具有三组正光学透镜和外部入射光瞳。 通常，所有三组透镜从瞳孔和焦平面位移。 因此，流离失所的群体参与图像转移以及学生转移。 因此，光功率要求可以从一组转移到另一组，分配以及降低整体功率需求。 此外，像差校正也可以在这些组之间共享。 传统上具有最高光功率的第一组以及由此校正的大量像差可以以这种方式将一些光学像差校正传递给其他组。 光学功能和像差校正的共享导致了完全集成的光学系统。 光功率的总量的减少是如此之大，从而可以容易地在入射光瞳和第一透镜组之间容纳视线偏移棱镜。 所得光学系统的简单性使其适合作为一次性物品。