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发明授权
US06879451B1 Neutral density color filters 有权
中性密度滤色片

Neutral density color filters
摘要：
The present application describes embodiments of a neutral density color wheel filter. According to one embodiment, a neutral density color wheel (100) includes an opaque coating (135) over one or more color segments (120, 130, 140, 150, 160, 170) with randomly placed transmissive regions (131). The transmissive regions (131) can be configured to substantially transmit incident light and the opaque coating (135) can be configured to substantially block or absorb the incident light. Alternatively, the transmissive regions (131) can be configured to substantially transmit the incident light. The color segments with opaque coating (135) and transmissive regions (131) substantially eliminate light recycling due to the reflection from the color wheel. The light transmission from the color wheel (100) is independent of the optics of a display system.
摘要（中）：

本申请描述了中性密度色轮滤光器的实施例。 根据一个实施例，中性密度色轮（100）包括具有随机放置的透射区域（131）的一个或多个颜色区段（120,130,140,​​150,160,170）上的不透明涂层（135）。 透射区域（131）可以被配置为基本上透射入射光，并且不透明涂层（135）可被配置为基本上阻挡或吸收入射光。 或者，透射区域（131）可以被配置为基本上透射入射光。 具有不透明涂层（135）和透射区域（131）的颜色区段基本上消除了由于来自色轮的反射引起的光再利用。 来自色轮（100）的光传输与显示系统的光学器件无关。

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