| 摘要 |
A color wheel for use in a projector includes a motor having a rotor, a carrier fixed to the rotor, and a color filter attached to the carrier. The color filter includes a substrate, a plurality of first film groups and a second film group formed on the substrate. Each first film group includes a high refraction index film and a low refraction index film that are stacked. The second film group includes a trititanium pentoxide film and a low refraction index film. The second film group is formed in the color filter with a position selected from a plurality of predetermined positions using a thin film design software.
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