Prism and lighting device
    2.
    发明申请
    Prism and lighting device 有权
    棱镜和照明装置

    公开(公告)号:US20100238666A1

    公开(公告)日:2010-09-23

    申请号:US12659821

    申请日:2010-03-23

    IPC分类号: F21V13/04 G02B5/04

    摘要: A prism includes a light incident portion that has first and second convex portions, the first and second convex portions each are a convex portion that refracts rays of light incident to a prism body and reduces a spread angle after incidence to the prism body via the convex portion to be smaller than that before the incidence, the spread angle is an angle between a given two of the rays, a first reflecting surface, provided on the prism body, that can reflect a first ray of light that has entered the prism body via the first convex portion, a first emitting portion, provided on the prism body, that emits, to the outside, the first ray reflected by the first reflecting surface, and a second emitting portion that emits, to the outside, a second ray of light that has entered the prism body via the second convex portion.

    摘要翻译: 棱镜包括具有第一和第二凸部的光入射部,第一凸部和第二凸部均为折射入射到棱镜体的光的凸部,并且经由凸部入射到棱镜体后减小扩散角 所述扩展角是给定的两条光线之间的角度,设置在棱镜体上的第一反射面可以反射已经进入棱镜体的第一光线经由 第一凸部,设置在棱镜体上的第一发光部,向第二反射面反射的第一射线向外侧射出第二发光部,第二发光部向第二射线 其经由第二凸部进入棱镜体。

    Prism and lighting device
    3.
    发明授权
    Prism and lighting device 有权
    棱镜和照明装置

    公开(公告)号:US08134780B2

    公开(公告)日:2012-03-13

    申请号:US12659821

    申请日:2010-03-23

    摘要: A prism includes a light incident portion that has first and second convex portions, the first and second convex portions each are a convex portion that refracts rays of light incident to a prism body and reduces a spread angle after incidence to the prism body via the convex portion to be smaller than that before the incidence, the spread angle is an angle between a given two of the rays, a first reflecting surface, provided on the prism body, that can reflect a first ray of light that has entered the prism body via the first convex portion, a first emitting portion, provided on the prism body, that emits, to the outside, the first ray reflected by the first reflecting surface, and a second emitting portion that emits, to the outside, a second ray of light that has entered the prism body via the second convex portion.

    摘要翻译: 棱镜包括具有第一和第二凸部的光入射部,第一凸部和第二凸部均为折射入射到棱镜体的光的凸部,并且经由凸部入射到棱镜体后减小扩散角 所述扩展角是给定的两条光线之间的角度,设置在棱镜体上的第一反射面可以反射已经进入棱镜体的第一光线经由 第一凸部,设置在棱镜体上的第一发光部,向第二反射面反射的第一射线向外侧射出第二发光部,第二发光部向第二射线 其经由第二凸部进入棱镜体。

    Sewing machine with illuminating led lamp
    6.
    发明授权
    Sewing machine with illuminating led lamp 有权
    缝纫机带照明led灯

    公开(公告)号:US06832841B2

    公开(公告)日:2004-12-21

    申请号:US10373806

    申请日:2003-02-27

    申请人: Takeshi Kitakata

    发明人: Takeshi Kitakata

    IPC分类号: D05B7900

    摘要: A sewing machine includes a sewing bed on which cloth to be sewn is placed, a pillar extending upward from the bed, a sewing arm extending horizontally from the pillar so as to be located over the bed, a high brightness LED lamp including a lens, a lamp cover provided to cover and support the LED lamp and made from a material which can transmit light emitted by the LED lamp, and a supporting member provided on the arm for supporting the lamp cover further supporting the LED lamp.

    摘要翻译: 一种缝纫机,包括:缝制床,待缝制的布料;从床上方向上延伸的立柱;从支柱水平延伸的缝纫臂,位于床上;高亮度LED灯,包括透镜; 设置为覆盖和支撑LED灯并由可以透射由LED灯发射的光的材料制成的灯罩;以及设置在臂上用于支撑灯罩的支撑构件,其进一步支撑LED灯。

    PROJECTION-USE ZOOM LENS
    7.
    发明申请
    PROJECTION-USE ZOOM LENS 审中-公开
    投影使用变焦镜头

    公开(公告)号:US20100149655A1

    公开(公告)日:2010-06-17

    申请号:US12088201

    申请日:2006-09-26

    IPC分类号: G02B15/14

    CPC分类号: G02B15/177 G02B13/22

    摘要: The present invention provides a zoom lens having fewer constituting lenses and capable of easily keeping telecentricity. From a projection plane side, lens groups ranging from a first lens group to a fourth lens group are disposed, sequentially. The first lens group consists of the three lenses, one negative lens, one positive lens and one negative lens arranged sequentially from the projection plane side, and has a negative power. The second lens group consists of three lenses in total, that is, one positive lens, one compound lens and one compound lens arranged sequentially from the projection plane PL side and has a positive power. The third lens group consists of one negative lens. The fourth lens group consists of one positive lens. At power varying, the first lens group and the second lens group are moved with the third lens group and the fourth lens group kept fixed. The third lens group is moved for focusing.

    摘要翻译: 本发明提供了一种具有较少构造透镜并且能够容易地保持远心度的变焦透镜。 从投影面侧依次配置从第一透镜组到第四透镜组的透镜组。 第一透镜组由投影平面侧依次布置的三个透镜,一个负透镜,一个正透镜和一个负透镜组成,并具有负光焦度。 第二透镜组由总共三个透镜组成,即一个正透镜,一个复合透镜和一个复合透镜,从投影平面PL侧依次布置并具有正光焦度。 第三透镜组由一个负透镜组成。 第四透镜组由一个正透镜组成。 在功率变化时,第一透镜组和第二透镜组随着第三透镜组和第四透镜组保持固定而移动。 第三个镜头组被移动以进行对焦。