Patent ID: 6967795

Claim:
A color wheel, comprising: a motor; and a color filter module disposed on the motor and rotated by the motor, the color filter module having a plurality of color filters, each of the color filters filtering a specific color, the plurality of color filters comprising: a first color filter having a first transmittance, 50% of the first transmittance being conformed to a first light wavelength and a second light wavelength, the second light wavelength being larger than the first light wavelength; and a second color filter having a second transmittance, 50% of the second transmittance being conformed to a third light wavelength and a fourth light wavelength, the fourth light wavelength being larger than the third light wavelength, wherein the second color filter and the first color filter have substantially same hues, the second transmittance being smaller than first transmittance, the second color filter being conformed to a first condition, the first condition being chosen from the third light wavelength being larger than the first light wavelength or the second light wavelength being larger than the fourth light wavelength.