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    • 8. 发明申请
    • LIGHT GUIDE WITH EMBEDDED FRESNEL REFLECTORS
    • 带有嵌入式FRESNEL反射器的指南
    • US20130321432A1
    • 2013-12-05
    • US13490953
    • 2012-06-07
    • David William Burns
    • David William Burns
    • G06T1/00F21V7/04B23P17/00F21V8/00
    • G06F3/042G02B6/0036G02B26/001G06F3/0421G06F2203/04109G09G3/3466Y10T29/49105Y10T29/49993
    • This disclosure provides systems, methods and apparatus for an optical system including a light guide and a plurality of angled slots. The angled slots are defined by undercuts in the light guide and are filled with a filler material having a refractive index that is mismatched with the refractive index of the light guide material by about 0.3 or less. The angled slots are configured to eject light out of the light guide principally by Fresnel reflections. Layers formed of the filler material can be disposed along each of the bottom and top major surfaces of the light guide. In some implementations, the light guide is attached to a light source. The light source emits light that is injected into the light guide and the angled slots redirect the light out of the light guide toward a desired target. In some implementations, the target is a display.
    • 本公开提供了一种用于包括光导和多个倾斜槽的光学系统的系统,方法和装置。 成角度的狭槽由光导中的切口限定,并且填充有与导光材料的折射率不匹配的折射率为约0.3或更小的填充材料。 成角度的槽被配置为主要通过菲涅耳反射将光从导光板射出。 由填充材料形成的层可以沿着光导的每个底部和顶部主表面设置。 在一些实施方案中,光导附着到光源。 光源发射被注入到光导中的光,并且成角度的槽将光从导光件重新导向所需的目标。 在一些实现中,目标是显示器。