Compact zoom lens system
    1.
    发明授权
    Compact zoom lens system 失效
    小型变焦镜头系统

    公开(公告)号:US5283693A

    公开(公告)日:1994-02-01

    申请号:US714266

    申请日:1991-06-12

    IPC分类号: G02B15/177 G02B15/14

    CPC分类号: G02B15/177

    摘要: A compact zoom lens system comprises a front negative lens component and a rear positive lens component with a variable air space between the front and the rear lens components. The front negative lens component consists of two lens elements and the rear lens component consists of two or three lens elements. A plurality of aspherical surfaces are employed for the compact zoom lens system. Furthermore, some zoom lens system includes an additional negative lens component having a weak refractive power behind the rear lens component.

    摘要翻译: 紧凑型变焦透镜系统包括前负透镜部件和后正透镜部件,其在前透镜部件和后透镜部件之间具有可变空气空间。 前负透镜组件由两个透镜元件组成,后透镜组件由两个或三个透镜元件组成。 多个非球面用于紧凑变焦透镜系统。 此外,一些变焦透镜系统包括在后透镜部件后面具有弱折射力的附加负透镜部件。

    Compact zoom lens system
    2.
    发明授权
    Compact zoom lens system 失效
    小型变焦镜头系统

    公开(公告)号:US5257135A

    公开(公告)日:1993-10-26

    申请号:US770085

    申请日:1991-09-30

    CPC分类号: G02B15/173

    摘要: A compact zoom lens system comprises from the object side: a first lens component of a positive refractive power; a second lens component of a negative refractive power with a variable air space between the first and second lens components; and a third lens component of a positive refractive power with a variable air space between the second and third lens components. A plurality of aspherical surfaces are employed for the realization of a compact and low-cost zoom lens system. Furthermore, a focusing operation is carried out by both of the first and second lens components or third lens component.

    摘要翻译: 一种紧凑型变焦透镜系统,包括:物体侧:正屈光力的第一透镜部件; 具有在第一和第二透镜部件之间具有可变空气空间的负折光力的第二透镜部件; 以及具有在第二和第三透镜部件之间具有可变空气空间的正折光力的第三透镜部件。 多个非球面用于实现紧凑且低成本的变焦透镜系统。 此外,由第一和第二透镜部件或第三透镜部件两者进行聚焦操作。

    Zoom lens system having two lens units
    3.
    发明授权
    Zoom lens system having two lens units 失效
    变焦镜头系统具有两个镜头单元

    公开(公告)号:US6025961A

    公开(公告)日:2000-02-15

    申请号:US56294

    申请日:1998-04-07

    IPC分类号: G02B15/177 G02B15/14

    CPC分类号: G02B15/177

    摘要: A zoom lens system has a first lens unit and a second lens unit from the object side. The first lens unit has a negative optical power. The second lens unit has a positive optical power. The second lens unit is arranged on the image side of the first lens unit. An air space between the first and second units is variable for zooming. The second lens unit has a doublet lens element composed of a positive lens element and a negative lens element cemented together.

    摘要翻译: 变焦透镜系统具有来自物体侧的第一透镜单元和第二透镜单元。 第一透镜单元具有负光学功率。 第二透镜单元具有正光焦度。 第二透镜单元布置在第一透镜单元的像侧上。 第一单元和第二单元之间的空间可变化用于变焦。 第二透镜单元具有由正透镜元件和负透镜元件粘合在一起构成的双透镜元件。

    Zoom lens system
    4.
    发明授权
    Zoom lens system 失效
    变焦镜头系统

    公开(公告)号:US5539582A

    公开(公告)日:1996-07-23

    申请号:US986456

    申请日:1992-12-07

    IPC分类号: G02B15/177 G02B15/14

    CPC分类号: G02B15/177

    摘要: A zoom lens system is provided with, from the object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power and a third lens unit having a negative refractive power. Zooming from a shortest focal length condition to a longest focal length condition is performed by moving all of the lens units while reducing the distance between the first and second lens units and the distance between the second and third lens units. The second lens unit includes three lens elements of a positive lens element, a negative lens element and a positive lens element from the object side.

    摘要翻译: 变焦透镜系统从物体侧设置具有负折光力的第一透镜单元,具有正折光力的第二透镜单元和具有负屈光力的第三透镜单元。 通过在减小第一和第二透镜单元之间的距离以及第二和第三透镜单元之间的距离的同时移动所有透镜单元来执行从最短焦距条件到最长焦距条件的放大。 第二透镜单元包括来自物体侧的正透镜元件,负透镜元件和正透镜元件的三个透镜元件。

    Radio communication terminal that selects among radio communication networks
    7.
    发明授权
    Radio communication terminal that selects among radio communication networks 有权
    无线电通信终端,在无线电通信网络中进行选择

    公开(公告)号:US09191885B2

    公开(公告)日:2015-11-17

    申请号:US13443734

    申请日:2012-04-10

    IPC分类号: H04M1/00 H04W48/18 H04W8/18

    摘要: A radio communication terminal 100 includes: a first storage unit 1171 configured to store a PRL list L1 used for connection to a communication provider-provided WLAN provided by a communication provider, a content of the first storage unit 1171 being rewritable by the communication provider; and a second storage unit 1172 configured to store a user registration list L2 used for connection to a user-registered WLAN registered by a user of the radio communication terminal, the second storage unit 1172 being rewritable by the user. The radio communication terminal 100 selects any one of the communication provider-provided WLAN and the user-registered WLAN, based on the PRL list L1 and the user registration list L2.

    摘要翻译: 无线通信终端100包括:第一存储单元1171,其被配置为存储用于连接到由通信提供商提供的通信提供商提供的WLAN的PRL列表L1,第一存储单元1171的内容可由通信提供商重写; 以及第二存储单元1172,其被配置为存储用于连接到由无线电通信终端的用户注册的用户注册的WLAN的用户注册列表L2,第二存储单元1172可由用户重写。 无线电通信终端100基于PRL列表L1和用户注册列表L2选择通信提供商提供的WLAN和用户注册的WLAN中的任一个。

    Illumination apparatus
    9.
    发明授权
    Illumination apparatus 有权
    照明装置

    公开(公告)号:US08754588B2

    公开(公告)日:2014-06-17

    申请号:US13563173

    申请日:2012-07-31

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0884 H05B33/0821

    摘要: An illumination apparatus including: a power supply circuit which outputs a DC power obtained by rectifying an AC voltage and stepping up the rectified voltage; a light source unit having semiconductor light emitting elements turned on by the DC power; and a housing formed of a conductive material that is grounded through a ground path and on which the power supply circuit and the light source unit are mounted. When one of power feed lines is cut off, the light emitting elements are supplied with an AC power from an AC power source through the ground path and a stray capacitance formed between the light source unit and the housing, and a forward voltage of the light emitting elements has a light emission level hardly recognizable.

    摘要翻译: 一种照明装置,包括:电源电路,其输出通过对AC电压进行整流而得到的直流电力,并提高整流电压; 具有通过所述直流电源接通的半导体发光元件的光源单元; 以及由导电材料形成的壳体,其通过接地路径接地,并且电源电路和光源单元安装在该壳体上。 当切断供电线之一时,发光元件从交流电源通过接地路径提供AC电力,并在光源单元和壳体之间形成杂散电容,并且将光的正向电压 发光元件的发光水平难以识别。

    Zoom lens and imaging apparatus
    10.
    发明授权
    Zoom lens and imaging apparatus 有权
    变焦镜头和成像设备

    公开(公告)号:US08520318B2

    公开(公告)日:2013-08-27

    申请号:US13064701

    申请日:2011-04-11

    IPC分类号: G02B15/14

    CPC分类号: G02B15/173 G02B13/06

    摘要: A zoom lens including first, second, and third lens groups having positive, negative, and positive refractive powers, respectively, which are arranged in that order from the object side to the image side such that, when zooming from wide-angle to telephoto, the first lens group moves to the object side, and spacings between the lens groups change. The third lens group has at least two lenses including a first lens, which is a positive lens arranged closer to the object side than the other lenses of the third lens group. Blur correction is performed by moving the first lens perpendicularly to the optical axis. The third lens group is configured such that the following conditional expression is satisfied: 0.3

    摘要翻译: 一种变焦透镜,包括分别具有正,负和正折射光焦度的第一透镜组,第二透镜组和第三透镜组,其以从物体侧到像侧的顺序排列,使得当从广角变焦到长焦时, 第一透镜组移动到物体侧,并且透镜组之间的间距变化。 第三透镜组具有包括第一透镜的至少两个透镜,第一透镜是比第三透镜组的其它透镜更靠近物体侧布置的正透镜。 通过使第一透镜垂直于光轴移动来进行模糊校正。 第三透镜组被配置为使得满足以下条件表达式:0.3 <(1-betakFW)·betakRW <1.9,其中betakFW和betakRW分别是第一透镜和其余透镜的广角处的横向倍率 的第三个镜头组。