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    • 21. 发明申请
    • DISPLAY DEVICE WITH DIFFRACTIVE OPTICS
    • 具有差分光学的显示设备
    • US20100103488A1
    • 2010-04-29
    • US12444683
    • 2007-10-09
    • Russell Wayne GruhlkeIon BitaMarek MienkoGang Xu
    • Russell Wayne GruhlkeIon BitaMarek MienkoGang Xu
    • G02B5/32
    • G02B6/0035G02B6/0061G03H2001/0419G03H2001/2228
    • Light modulator displays may be illuminated using a light guide comprising diffractive optics that directs light onto an array of light modulators. A holographic light turning element may be included with the light guide to turn light propagating within the light guide onto the light modulators. In some embodiments, the holographic element is configured to distribute a substantially uniform amount of light across the array of modulators. The holographic element may, for example, have a turning efficiency that changes along the length of the holographic element. A holographic element can also be used to function as a light bar. Such a holographic element may receive light from a light source such as a light emitting diode and distribute the light along a light guide disposed in front of an array of light modulators.
    • 光调制器显示器可以使用包括将光引导到光调制器阵列上的衍射光学器件的光导照射。 全息光转向元件可以包括在光导中,以将在光导内传播的光转动到光调制器上。 在一些实施例中,全息元件被配置为在调制器阵列上分布基本均匀的光量。 例如,全息元件可以具有沿着全息元件的长度而改变的转向效率。 全息元件也可以用作光条。 这样的全息元件可以从诸如发光二极管的光源接收光,并且沿着布置在光调制器阵列前面的光导分布光。