目的：研究不同方向光源对数码色度值的影响。
Objective: To study the effect of light from different direction on digital chromatic value.
在单色仪的色度测量中，为减少光源对物体直接照射所受外界的干扰，将光纤探头作为光能的收集与传输部件引入测色系统中。
To decreare the interference for the chromatic measuring system, the light source shine straightly on the object, the fiber-optic probe was used as the receiver in the chromatic measuring system.
因此led可以替代传统的弧光灯光源以满足投影显示的色度特性要求。
Therefore, LED can take place of conventional arc lamp to satisfy the colorimetric requirement of the projection display.
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