CATV converter for receiving both analog and digital signals
    81.
    发明授权
    CATV converter for receiving both analog and digital signals 失效
    CATV转换器,用于接收模拟和数字信号

    公开(公告)号:US5893025A

    公开(公告)日:1999-04-06

    申请号:US750828

    申请日:1997-03-27

    CPC分类号: H03D7/161 H04N7/10 H04N7/102

    摘要: The present invention aims to provide a CATV converter which can receive both of analog and digital signals. The CATV converter comprises a second mixer (10) coupled with a first filter (13) which attenuates approximately equal frequency to an audio carrier of an upper adjacent channel and approximately equal frequency to a video carrier of a lower adjacent channel, a first amplifier (14) coupled with an output terminal of the first filter (13), and a second filter (15) coupled with the output terminal of the first amplifier (14). The second filter (15) attenuates a video carrier of the upper adjacent channel and an audio carrier of the lower adjacent channel. When an input signal is within a predetermined frequency range, the input signal fed to the input terminal (1) can short-circuit the input and output terminals of the second filter with a high frequency of the input signal.

    摘要翻译: PCT No.PCT / JP96 / 01032 Sec。 371日期1997年3月27日 102(e)1997年3月27日PCT PCT 1996年4月15日PCT公布。 第WO96 / 32814号公报 日期:1996年10月17日本发明旨在提供一种能够接收模拟信号和数字信号的CATV转换器。 CATV转换器包括与第一滤波器(13)耦合的第二混频器(10),该第一滤波器衰减与上邻近信道的音频载波大致相等的频率,并且与下邻近信道的视频载波大致相等的频率,第一放大器 14)与第一滤波器(13)的输出端耦合,以及与第一放大器(14)的输出端耦合的第二滤波器(15)。 第二滤波器(15)衰减上相邻信道的视频载波和下相邻信道的音频载波。 当输入信号在预定频率范围内时,输入到输入端(1)的输入信号可以以输入信号的高频使第二滤波器的输入和输出端短路。

    Imaging lens
    83.
    发明授权
    Imaging lens 有权
    成像镜头

    公开(公告)号:US08508648B2

    公开(公告)日:2013-08-13

    申请号:US13206136

    申请日:2011-08-09

    IPC分类号: H04N5/225 G02B3/02 G02B9/34

    CPC分类号: G02B13/004

    摘要: An imaging lens includes an aperture stop ST, a first lens L1 that is shaped to form a meniscus lens that directs a convex surface to the object side near an optical axis and has positive refractive power, a second lens L2 that is shaped to form a meniscus lens that directs a convex surface to the object side near the optical axis and has negative refractive power, a third lens L3 that is shaped to form a meniscus lens that directs a concave surface to the object side near the optical axis and has positive refractive power, and a fourth lens L4 that is shaped to form a meniscus lens that directs a convex surface to the object side near the optical axis, arranged in this order from an object side to an image side. When the first lens L1 has a focal length f1 and the second lens L2 has a focal length f2, the imaging lens is configured such that a relationship 0.3

    摘要翻译: 成像透镜包括孔径光阑ST,第一透镜L1,其被成形为形成朝向光轴附近的物体侧的凸形表面并具有正折光力的弯月形透镜;第二透镜L2,其被成形为 弯曲透镜,其将凸表面引导到靠近光轴的物体侧并具有负折光力;第三透镜L3,其被成形为形成弯曲透镜,其将凹面指向靠近光轴的物体侧并且具有正折射率 功率以及第四透镜L4,其被成形为形成从物体侧到像侧依次布置的凸起表面朝向光轴附近的物体侧的弯月形透镜。 当第一透镜L1具有焦距f1并且第二透镜L2具有焦距f2时,成像透镜被配置为使得满足关系0.3 <| f1 / f2 | <0.7。

    Imaging lens
    84.
    发明授权
    Imaging lens 有权
    成像镜头

    公开(公告)号:US08477434B2

    公开(公告)日:2013-07-02

    申请号:US13445154

    申请日:2012-04-12

    IPC分类号: G02B9/34 G02B13/18

    CPC分类号: G02B13/004

    摘要: An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; and a fourth lens having positive refractive power, arranged from an object side to an image plane side. In the first lens, a curvature radius on an object-side surface is positive and a curvature radius of an image-side surface is negative. In the second lens, curvature radii of an object-side surface and an image-side surface are both positive. In the third lens, curvature radii of an object-side surface and an image-side surface thereof are both negative. When the whole lens system has a focal length f and a distance from the object-side surface of the first lens to an image-side surface of the fourth lens is L14, the imaging lens satisfies the following expression: 0.5

    摘要翻译: 成像透镜包括具有正折光力的第一透镜; 具有负屈光力的第二透镜; 具有正折射光焦度的第三透镜; 以及从物体侧到像面侧布置的具有正折光力的第四透镜。 在第一透镜中,物体侧表面上的曲率半径为正,图像侧表面的曲率半径为负。 在第二透镜中,物体侧表面和图像侧表面的曲率半径均为正。 在第三透镜中,物体侧表面和图像侧表面的曲率半径均为负。 当整个透镜系统具有焦距f并且从第一透镜的物体侧表面到第四透镜的像侧表面的距离为L14时,成像透镜满足以下表达式:0.5

    IMAGING LENS
    85.
    发明申请
    IMAGING LENS 有权
    成像镜头

    公开(公告)号:US20120194926A1

    公开(公告)日:2012-08-02

    申请号:US13347048

    申请日:2012-01-10

    IPC分类号: G02B9/34

    CPC分类号: G02B13/004 G02B9/34 G02B13/18

    摘要: An imaging lens includes a first lens L1 that has a biconvex shape near an optical axis and has positive refractive power, a second lens L2 that has a biconcave shape near the optical axis and has negative refractive power, a third lens L3 that has a shape of a meniscus lens directing a concave surface thereof to an object side near an optical axis and has positive refractive power, and a fourth lens L4 that has a biconcave shape near the optical axis and has negative refractive power, arranged in this order from the object side. When the whole lens system has a focal length f and the fourth lens L4 has a focal length f4, the imaging lens of the invention satisfies the following expression: −0.7

    摘要翻译: 成像透镜包括在光轴附近具有双凸形状并且具有正折光力的第一透镜L1,在光轴附近具有双凹形状并具有负折光力的第二透镜L2,具有负折射力的第三透镜L3,具有形状 的凹凸透镜将其凹面指向光轴附近的物体侧并具有正折光力;以及第四透镜L4,其具有靠近光轴并具有负折光力的第二透镜L4,该第四透镜L4从物体依次排列 侧。 当整个透镜系统具有焦距f并且第四透镜L4具有焦距f4时,本发明的成像镜片满足以下表达式:-0.7

    IMAGING DEVICE
    86.
    发明申请
    IMAGING DEVICE 有权
    成像装置

    公开(公告)号:US20120105705A1

    公开(公告)日:2012-05-03

    申请号:US13283235

    申请日:2011-10-27

    IPC分类号: H04N5/225 G02B17/08

    摘要: An imaging device includes a light source; a prism having an imaging surface to be contacted with an object; and an image-forming optical system that forms an image of the object. The image-forming optical system includes a front lens group having a first optical axis tilted relative to the imaging surface; an image plane tilted from a surface perpendicular to the first optical axis of the front lens group; and a rear lens group having a second optical axis shifted in parallel to the first optical axis of the front lens group. The image-forming optical system is arranged to satisfy the following conditional expression: |Aim|/(90°−Ain)

    摘要翻译: 成像装置包括光源; 具有与物体接触的成像面的棱镜; 以及形成对象的图像的图像形成光学系统。 图像形成光学系统包括:具有相对于成像表面倾斜的第一光轴的前透镜组; 从垂直于前透镜组的第一光轴的表面倾斜的图像平面; 以及具有与前透镜组的第一光轴平行移位的第二光轴的后透镜组。 图像形成光学系统被设置为满足以下条件表达式:| Aim | /(90°-Ain)<0.5其中Ain是成像表面和第一光轴之间的锐角,并且Aim是 图像平面和垂直于第一光轴的表面。

    ELECTRONIC APPARATUS
    88.
    发明申请
    ELECTRONIC APPARATUS 审中-公开
    电子设备

    公开(公告)号:US20090085359A1

    公开(公告)日:2009-04-02

    申请号:US12239456

    申请日:2008-09-26

    IPC分类号: H02K7/18 H02K35/02

    CPC分类号: H02K35/02 H02K7/1876

    摘要: An electronic apparatus includes a power generator including a movable portion displaced by kinetic energy acting on an electronic apparatus body and a conversion portion converting displacement of the movable portion to electric energy, wherein the movable portion of the power generator is arranged on or below a gravity center of the electronic apparatus body in a state where the electronic apparatus body is supported in a used state.

    摘要翻译: 一种电子设备,包括:发电机,其包括通过作用在电子设备主体上的动能而移动的可动部分和将可动部分移动到电能的转换部分,其中发电机的可动部分布置在重力或重力之下 在电子设备主体被支撑在使用状态的状态下的电子设备主体的中心。