Lightguide having a viscoelastic layer for managing light
    8.
    发明授权
    Lightguide having a viscoelastic layer for managing light 有权
    光导具有用于管理光的粘弹性层

    公开(公告)号:US09285531B2

    公开(公告)日:2016-03-15

    申请号:US13057498

    申请日:2009-07-30

    IPC分类号: G02B6/00 F21V8/00

    摘要: Disclosed herein is an optical device including a light source and an optical article. The optical article includes a lightguide and a viscoelastic layer disposed on the lightguide. Light emitted by the light source enters the lightguide and is transported within the lightguide by total internal reflection. The viscoelastic layer manages light, for example, at least about 50%, or less than about 10%, of light that enters the lightguide may be extracted. The optical device can be used in a variety of constructions for signs, markings, display devices, keypad assemblies, tail light assemblies and illumination devices.

    摘要翻译: 本文公开了一种包括光源和光学制品的光学装置。 光学制品包括设置在光导上的光导和粘弹性层。 由光源发出的光进入光导,并通过全内反射在光导内传输。 粘弹性层管理光,例如,可以提取进入光导的至少约50%或小于约10%的光。 光学装置可以用于各种用于符号,标记,显示装置,键盘组件,尾灯组件和照明装置的结构中。

    Retroreflective articles and devices having viscoelastic lightguide
    9.
    发明授权
    Retroreflective articles and devices having viscoelastic lightguide 有权
    具有粘弹性光导的回射制品和装置

    公开(公告)号:US09086535B2

    公开(公告)日:2015-07-21

    申请号:US13003193

    申请日:2009-07-09

    摘要: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The optical device may have a “front lit” configuration such that light being transported within the lightguide is extracted and retroreflected by the film toward a viewer. The optical device may have a “back lit” configuration such that light being transported within the lightguide is extracted and transmitted through the film toward a viewer. The retroreflective film may comprise beaded retroreflective sheeting such as that used in traffic signs and markings.

    摘要翻译: 本文公开了一种具有光源,粘弹性光导和适于回射光的回射膜的光学装置。 来自光源的光进入粘弹性光导,并通过全内反射在光导内传输。 光学装置可以具有“前照明”构造,使得在光导内传输的光被薄膜朝向观察者提取并回射。 光学装置可以具有“背光”构造,使得在光导内传输的光被提取并通过胶片朝向观察者传播。 回射膜可以包括诸如用于交通标志和标记的串珠式回射片材。

    SWITCHABLE PRIVACY FILTER
    10.
    发明申请
    SWITCHABLE PRIVACY FILTER 审中-公开
    可切换隐私过滤器

    公开(公告)号:US20130162924A1

    公开(公告)日:2013-06-27

    申请号:US13819401

    申请日:2011-08-08

    IPC分类号: G02F1/133 G02F1/1337

    摘要: The disclosure generally relates to optical elements such as switchable privacy filters useful for displaying information in at least two modes. In the first mode, the viewing angle can be limited to restrict viewing to near-normal orientations. In the second mode, the viewing angle can be increased so that the information can be viewed at larger oblique angles. The disclosure also relates to switchable privacy displays that include the switchable privacy filters.

    摘要翻译: 本发明一般涉及用于以至少两种模式显示信息的可切换隐私滤波器的光学元件。 在第一模式中,可以限制视角以将观看限制为接近正常的取向。 在第二模式中,可以增加视角,使得可以以更大的倾斜角度观看信息。 本公开还涉及包括可切换隐私过滤器的可切换隐私显示。