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    • 9. 发明授权
    • Corner-cube retroreflectors for displays
    • 用于显示器的角立方体后向反射器
    • US07450799B2
    • 2008-11-11
    • US11766007
    • 2007-06-20
    • Martin G. SelbredeGarth GobeliB. Tod CoxDaniel K. Van OstrandMartin A. Kykta
    • Martin G. SelbredeGarth GobeliB. Tod CoxDaniel K. Van OstrandMartin A. Kykta
    • G02B6/26
    • G02B6/0053G02B5/124G02B6/00G02B6/2852G02F1/133553G02F2201/38
    • Enhancement of the contrast ratio of optical flat panel displays by integrating an array of corner-cube retroreflectors into the front face of the optical display, said integration involving mutual adaptation of both the display and the corner-cube retroreflector geometry to unite the two disparate optical systems. The light emission from the display passes through the truncated vertex of the corner-cubes to the observer. The display directs its emitted light through the vertex apertures (either as a natural behavior, or by interposing a registered array of light concentrators between the display and the corner-cube array). The improvement in contrast ratio arises due to the corner-cube retroreflectors' ability to direct incident ambient light directly back to its source, rather than the viewer's eyes. Ambient light reflections are not attenuated but maximized; this maximization is directed away from the viewer, causing the array to appear dark even in direct sunlight.
    • 通过将角立方体后向反射器阵列集成到光学显示器的前表面来增强光学平板显示器的对比度,所述整合涉及显示器和角立方后视反射器几何的相互适应以组合两个不同的光学 系统。 来自显示器的光发射通过角立方体的截顶点到观察者。 显示器通过顶点孔径引导其发射的光(作为自然的行为,或者通过在显示器和角立方体阵列之间插入注册的聚光器阵列)。 对比度的提高是由于角立方后视反射器将入射环境光直接引导回其光源而不是观察者的眼睛的能力。 环境光反射不衰减但最大化; 这种最大化被引导离开观察者,导致阵列甚至在直射的阳光下也显得黑暗。