Projector and projecting method using the same

A projecting method, comprising:

• providing a projector comprising a first light source, a second light source and a color wheel, wherein the color wheel comprises at least one transparent region and at least one phosphor reflection region, and the color wheel is located on a first optical path of a first color light;
• emitting the first color light by the first light source, wherein the first color light reflected by the phosphor reflection region of the color wheel becomes a fourth color light;
• guiding the fourth color light towards a projecting direction to become a second projecting light;
• emitting the first color light by the first light source, wherein the first color light passing through the at least one transparent region of the color wheel becomes a third color light;
• emitting a second color light by the second light source;
• and
• guiding the second color light to be only mixed with the third color light and simultaneously toward a projection direction to become a first projecting light, wherein the second projecting light and the first projecting light do not overlap in timing.