公开(公告)号：US5726746A

公开(公告)日：1998-03-10

申请号：US749973

申请日：1996-11-15

申请人： Heui-Jae Park ,  Seok-Won Lee ,  Geon-Mo Kang ,  Ho-Gyun Moon

发明人： Heui-Jae Park ,  Seok-Won Lee ,  Geon-Mo Kang ,  Ho-Gyun Moon

IPC分类号： G01M11/02 ,  G01M11/00

CPC分类号： G01M11/0221 ,  G01M11/0292

摘要： An automatic inspection system for camera lenses and method thereof using a line charge coupled device (CCD) which can process a signal easily and perceive a focal distance of lenses exactly by focusing automatically using a modulation transfer function (MTF) method when designing lenses. The automatic inspection system for camera lenses using a line CCD comprises a light source, a chart, a collimator, camera lenses, a mirror, an image pickup part, a signal converter, and a control part.

摘要翻译： 一种用于摄像机镜头的自动检查系统及其使用线电荷耦合器件（CCD）的方法，其可以容易地处理信号并且在设计透镜时通过使用调制传递函数（MTF）方法自动聚焦来感知透镜的焦距。 使用线CCD的相机镜头的自动检查系统包括光源，图表，准直器，照相机镜头，镜子，图像拾取部分，信号转换器和控制部分。

公开(公告)号：US6061187A

公开(公告)日：2000-05-09

申请号：US133635

申请日：1998-08-13

申请人： Geon-Mo Kang

发明人： Geon-Mo Kang

IPC分类号： G02B15/00 ,  G02B15/163 ,  G02B15/14

CPC分类号： G02B15/163

摘要： A zoom lens system includes, when viewed from an object side, a first lens group with a positive refractive power; a second lens group with a positive refractive power; and a third lens group with a negative refractive power. When zooming from a wide-angle position to a telephoto position, the first, second and third lens groups move towards the object side while the distance between the first lens group and the second lens group increases and the distance between the second lens group and the third lens group decreases. The zoom lens system is compact and has a high zoom ratio of more than 3.5.

摘要翻译： 当从物体侧观察具有正屈光力的第一透镜组时，变焦透镜系统包括： 具有正屈光力的第二透镜组; 以及具有负屈光力的第三透镜组。 当从广角位置变焦到远摄位置时，第一透镜组和第二透镜组之间的距离增大，第一透镜组和第二透镜组之间的距离朝向物体侧移动 第三透镜组减少。 变焦镜头系统紧凑，变焦倍率大于3.5。

公开(公告)号：US5956185A

公开(公告)日：1999-09-21

申请号：US970499

申请日：1997-11-14

申请人： Geon-Mo Kang

发明人： Geon-Mo Kang

IPC分类号： G02B15/163 ,  G02B15/14

CPC分类号： G02B15/163

摘要： The invention comprises a fast zoom lens system comprising, from an object side to an image side, three lens groups. The first lens group has an overall positive refractive power, the second lens group has an overall positive refractive power, and the third lens group has an overall negative refractive power. The first lens group, the second lens group and the third lens group move toward the object side during operation. In addition, a distance between the first lens group and the second lens group increases while a distance between the second lens group and the third lens group decreases when zooming from a wide-angle position to a telephoto position. Fast zoom lens systems consistent with the invention satisfy the following conditions:0.8

摘要翻译： 本发明包括快速变焦透镜系统，其包括从物体侧到像侧的三个透镜组。 第一透镜组具有总的正折光力，第二透镜组具有总的正折射光焦度，并且第三透镜组具有总的负折射光焦度。 第一透镜组，第二透镜组和第三透镜组在操作期间朝向物体侧移动。 此外，当从广角位置变焦到远摄位置时，第一透镜组和第二透镜组之间的距离增加，而第二透镜组和第三透镜组之间的距离减小。 符合本发明的快速变焦透镜系统满足以下条件：0.8

公开(公告)号：US5900991A

公开(公告)日：1999-05-04

申请号：US921596

申请日：1997-09-02

申请人： Geon-Mo Kang

发明人： Geon-Mo Kang

IPC分类号： G02B15/14 ,  G02B15/16

CPC分类号： G02B15/161

摘要： The invention comprises a zoom lens system including two lens groups. The first lens group has an overall positive refractive power, and includes three sub-group lens units. The first sub-group lens unit has a negative refractive power, the second sub-group lens unit has a positive refractive power, and the third sub-group lens unit has a positive refractive power. The second lens group has an overall negative refractive power and includes two sub-group lens units. The fourth sub-group lens unit has a positive refractive power, and the fifth sub-group lens unit has a negative refractive power. The magnification of the system can be changed by varying a distance between the first lens group and the second lens group, wherein the following conditions are satisfied:Mt/Mw>1.95,0.20

摘要翻译： 本发明包括一个包括两个透镜组的变焦透镜系统。 第一透镜组具有总的正折射光焦度，并且包括三个子组透镜单元。 第一子组透镜单元具有负屈光力，第二子组透镜单元具有正折光力，第三子组透镜单元具有正折光力。 第二透镜组具有总的负屈光力并且包括两个子组透镜单元。 第四子组透镜单元具有正折光力，第五子组透镜单元具有负折光力。 可以通过改变第一透镜组和第二透镜组之间的距离来改变系统的放大率，其中满足以下条件：Mt / Mw> 1.95,0.20

公开(公告)号：US5726811A

公开(公告)日：1998-03-10

申请号：US764767

申请日：1996-12-12

申请人： Geon-Mo Kang ,  Hae-Jin Lee

发明人： Geon-Mo Kang ,  Hae-Jin Lee

IPC分类号： B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  D21H19/16 ,  G02B13/18 ,  G02B15/16 ,  G02B15/14

CPC分类号： G02B15/161

摘要： A compact lens system is disclosed which includes a first lens group and a second lens group. The first lens group, which has an overall positive refractive power, includes a first meniscus lens, convex toward an object, and having a positive refractive power. Also included is a second biconcave lens having a negative refractive power, and a third biconvex lens which is connected to the second lens and which has a positive refractive power. The first lens group further includes a fourth biconvex lens which has a positive refractive power. The second lens group has an overall negative refractive power, and includes: a fifth concave lens having a positive refractive power; a sixth concave lens having a negative refractive power; and a seventh lens having a negative refractive power. The magnification of the system can be changed by varying a distance between the first and the second lens group in accordance with the following condition: 1.1

摘要翻译： 公开了一种紧凑的透镜系统，其包括第一透镜组和第二透镜组。 具有整体正屈光力的第一透镜组包括朝向物体凸出并且具有正折光力的第一弯月透镜。 还包括具有负折光力的第二双凹透镜和连接到第二透镜并具有正折光力的第三双凸透镜。 第一透镜组还包括具有正折光力的第四双凸透镜。 第二透镜组具有总的负折光力，并且包括：具有正折光力的第五凹透镜; 具有负屈光力的第六凹透镜; 以及具有负屈光力的第七透镜。 可以通过根据以下条件改变第一和第二透镜组之间的距离来改变系统的放大率：1.1 <（fbT-fbW）/（LT-LW）<1.24其中LW是变焦的长度 透镜系统在广角位置，LT是变焦透镜系统在远摄角度位置的长度，fbT是远摄角度位置处的后焦距，fbW是广角位置处的后焦距。

公开(公告)号：US5636061A

公开(公告)日：1997-06-03

申请号：US515628

申请日：1995-08-16

申请人： Geon-Mo Kang

发明人： Geon-Mo Kang

IPC分类号： G02B15/163 ,  G02B15/14 ,  G02B15/16

CPC分类号： G02B15/161

摘要： A zoom lens system using inexpensive lens materials and having a high magnification zoom ratio of more than 2 times and good aberration performance. A first lens group has a positive refractive power, and a second lens group has a negative refractive power. The distance between the first lens group and the second lens group varies during zooming. 0.37 2.0, where f.sub.I is a combined focal length of the first lens group, f.sub.bT is a back focus distance at a telephoto position f.sub.bw is a back focus distance at a wide angle position, m.sub.2T is a magnification of the second lens group at a telephoto position, and m.sub.2w is a magnification of the second lens group at a wide angle position.

摘要翻译： 一种变焦透镜系统，其使用廉价的透镜材料并且具有大于2倍的高倍率变焦比和良好的像差性能。 第一透镜组具有正折光力，第二透镜组具有负折光力。 第一透镜组和第二透镜组之间的距离在变焦期间变化。 0.37 2.0，其中fI是第一透镜组的组合焦距，fbT是远摄位置的后焦距，fbw是广角位置处的后焦距，m2T是第二透镜组的倍率 在远摄位置，m2w是第二透镜组在广角位置的倍率。