利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

132 条记录 (耗时 0.045 秒)

    Lens for projection, and image display device
    7.
    发明授权
    Lens for projection, and image display device 有权

    公开(公告)号：US09864175B2

    公开(公告)日：2018-01-09

    申请号：US14509125

    申请日：2014-10-08

    申请人： Takashi Kubota

    发明人： Takashi Kubota

    IPC分类号： G02B13/16 ,  G02B13/18 ,  G02B13/04

    CPC分类号： G02B13/16 ,  G02B13/04 ,  G02B13/18

    摘要： A lens for projection which is used in an image display device which includes an image display element and projects and displays an image displayed on an image display surface of the image display element as a projection image on a projected surface in an enlarged manner, the lens for projection including in order from an enlargement side to a reduction side, a first lens group which is constituted of at least eight lenses and has a positive refractive power; an aperture; and a second lens group which is constituted of less than or equal to four lenses and has a positive refractive power, wherein the first lens group includes one or more aspherical lenses, and the one or at least one aspherical lens included in the first lens group has a largest thickness at a most peripheral portion of the lens.

    Imaging lens, imaging device and information device
    8.
    发明授权
    Imaging lens, imaging device and information device 有权
    成像镜头，成像设备和信息设备

    公开(公告)号：US09297983B2

    公开(公告)日：2016-03-29

    申请号：US14082538

    申请日：2013-11-18

    申请人： Takashi Kubota

    发明人： Takashi Kubota

    IPC分类号： G02B9/60 ,  G02B9/62 ,  G02B15/14 ,  G02B13/00

    CPC分类号： G02B9/60 ,  G02B9/62 ,  G02B13/0045 ,  G02B15/14

    摘要： An imaging lens including seven or fewer lenses which constitute an entire system of an optical system comprising, in order from an object side to an imaging side: a first lens group having a positive refractive power; a second lens group having a positive refractive power; and a third lens group having a negative refractive power, wherein the first lens group includes a lens having a negative refractive power and a lens having a positive refractive power, an aperture stop being disposed in the first lens group, the second lens group includes one lens having a negative refractive power and one lens having a positive refractive power, and the third lens group including one lens having a negative refractive power and a concave surface on the object side.

    摘要翻译： 一种成像透镜，包括构成光学系统的整个系统的七个或更少透镜，其包括从物体侧到成像侧的顺序：具有正折射光焦度的第一透镜组; 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，其中所述第一透镜组包括具有负屈光力的透镜和具有正屈光力的透镜，所述第一透镜组中设置有孔径光阑，所述第二透镜组包括一个 具有负屈光力的透镜和具有正屈光力的一个透镜，并且第三透镜组包括在物体侧具有负屈光力和凹面的一个透镜。

    IMAGE DISPLAY DEVICE
    9.
    发明申请
    IMAGE DISPLAY DEVICE 有权
    图像显示设备

    公开(公告)号：US20140185144A1

    公开(公告)日：2014-07-03

    申请号：US14142122

    申请日：2013-12-27

    申请人： Takashi Kubota

    发明人： Takashi Kubota

    IPC分类号： G02B13/04

    CPC分类号： G02B15/177 ,  G02B13/04 ,  G02B13/16 ,  G02B15/20

    摘要： An image display device includes a high-performance projection zoom lens with a very wide field angle and an image display device including a projection zoom lens of a five-lens-group type, which achieves high performance across the entire zoom area. The image display device is configured to project an image onto a target projection surface and display a magnified image of the image, which uses a projection zoom lens having a five-lens-group configuration in which first to fifth lens groups G1 to G5 are arranged from the magnification side toward the reduction side, and each of the constituent lens groups or lenses included in the lens groups has a combination of negative and positive refractive powers, and in the lens configuration, focal lengths of the constituent lens groups, relative travel distances, lens distances to the image display element, and constituent lens shapes are properly selected.

    摘要翻译： 图像显示装置包括具有非常宽的视场角的高性能投影变焦透镜和包括五透镜组类型的投影变焦透镜的图像显示装置，其在整个变焦区域上实现高性能。 图像显示装置被配置为将图像投影到目标投影面上并显示图像的放大图像，其使用具有第五至第五透镜组配置的投影变焦透镜，其中布置有第一至第五透镜组G1至G5 并且透镜组中包括的构成透镜组或透镜中的每一个具有负折射和正折射力的组合，并且在透镜构造中，构成透镜组的焦距，相对行进距离 ，适当地选择到图像显示元件的透镜距离和构成透镜形状。

    IMAGE-FORMING LENS, AND IMAGING APPARATUS AND INFORMATION DEVICE USING THE IMAGE-FORMING LENS
    10.
    发明申请
    IMAGE-FORMING LENS, AND IMAGING APPARATUS AND INFORMATION DEVICE USING THE IMAGE-FORMING LENS 有权
    图像成像镜头，成像设备和使用图像形成镜头的信息设备

    公开(公告)号：US20130194681A1

    公开(公告)日：2013-08-01

    申请号：US13803112

    申请日：2013-03-14

    申请人： Kazuyasu Ohashi ,  Takashi Kubota

    发明人： Kazuyasu Ohashi ,  Takashi Kubota

    IPC分类号： G02B13/00

    CPC分类号： G02B13/0045 ,  G02B9/62 ,  G02B9/64 ,  G02B13/0015 ,  G02B13/006 ,  G02B13/04 ,  G02B27/0025

    摘要： An image-forming lens consists of: from an object side to an image side in the following order, a first lens group with a positive refractive power; an aperture stop; and a second lens group with a positive refractive power, and the second lens group includes: from the object side to the image side in the following order, a second F lens group with a positive refractive power in which a biconvex lens and a biconcave lens are cemented to each other; a second M lens group having a concave shape on a surface on a most object side and a convex shape on a surface on a most image side; and a second R lens group of a positive lens.

    摘要翻译： 成像透镜由以下顺序从物体侧到像侧组成：具有正折光力的第一透镜组; 孔径光阑; 和具有正折光力的第二透镜组，并且第二透镜组包括：从物体侧到像侧按照以下顺序，具有正折射光焦度的第二F透镜组，其中双凸透镜和双凹透镜 彼此凝固; 第二M透镜组，其在大多数物体侧的表面上具有凹形形状，并且在最大像侧的表面上具有凸形形状; 和正透镜的第二R透镜组。