Single lens for LED signal light
    11.
    发明授权
    Single lens for LED signal light 有权
    单透镜用于LED信号灯

    公开(公告)号:US07484871B2

    公开(公告)日:2009-02-03

    申请号:US10879953

    申请日:2004-06-29

    IPC分类号: F21V5/02

    摘要: A lens 10 comprises a first surface 12 and a second surface 14. The first surface 12 is provided with a plurality of horizontal, linear Fresnel lenses 16 and the second surface 14 is provided with a plurality of horizontal pillow optics 18. In the lens 10 the horizontal, linear Fresnel lenses 16 of the first surface 12 provide vertical refraction of light from a central axis sufficient to collimate light from a point to within ±70 degrees of horizontal and the pillow optics 18 of the second surface provide horizontal spread of the collimated light to ±25 degrees from the medial plane.

    摘要翻译: 透镜10包括第一表面12和第二表面14.第一表面12设置有多个水平的线性菲涅尔透镜16,并且第二表面14设置有多个水平枕头光学元件18.在透镜10中 第一表面12的水平线性菲涅尔透镜16提供来自中心轴的光的垂直折射,足以将来自点的光准直到±70度的水平面,并且第二表面的枕形光学器件18提供准直的 从内侧平面照射到±25度。

    VARIABLE SPOT SIZE LENSES AND LIGHTING SYSTEMS
    15.
    发明申请
    VARIABLE SPOT SIZE LENSES AND LIGHTING SYSTEMS 有权
    可变尺寸镜片和照明系统

    公开(公告)号:US20090109687A1

    公开(公告)日:2009-04-30

    申请号:US12258607

    申请日:2008-10-27

    IPC分类号: F21V5/04

    摘要: Improved lighting devices and methods are provided. In many embodiments, the devices and methods provide the capability to change a spot of light projected onto a target surface. In other embodiments, the devices and methods are fixed-focus. In one embodiment a lens can have a lens body with anterior and posterior surfaces. The anterior surface can be adapted to receive light from a light source. The posterior surface can have a central portion and a peripheral portion. Some of the light from the light source can pass through the lens body and exit the central portion of the posterior surface via refraction. Some of the light from the light source can pass through the lens body and exit the peripheral portion of the posterior surface via both refraction and reflection at various surfaces of the lens.

    摘要翻译: 提供改进的照明设备和方法。 在许多实施例中,装置和方法提供了改变投射到目标表面上的光斑的能力。 在其他实施例中,设备和方法是固定焦点。 在一个实施例中,透镜可以具有前表面和后表面的透镜体。 前表面可以适于接收来自光源的光。 后表面可以具有中心部分和周边部分。 来自光源的一些光可以穿过透镜体并通过折射离开后表面的中心部分。 来自光源的一些光可以透过透镜体并且经由透镜的各个表面处的折射和反射而离开后表面的周边部分。