Color light generating assembly, projection apparatus using the same and projection method thereof

A projection apparatus, comprising:

• a light source, configured to generate an illumination beam;
• a color light generating assembly, comprising:
• a color wheel module, comprising:
• a color wheel, disposed on a transmission path of an illumination beam of the projection apparatus, wherein an optical axis of the illumination beam irradiates the color wheel along a predetermined direction;
• and
• a first driving device, engaged with the color wheel, wherein the first driving device is configured to drive the color wheel to rotate so as to sequentially convert the illumination beam into a plurality of sub-illumination beams of different colors;
• and
• a reciprocating module, connected to the color wheel module, wherein the reciprocating module is configured to drive the color wheel module to reciprocate along a predetermined path when the color wheel is being driven to rotate by the first driving device, and the predetermined direction is non-parallel to the predetermined path;
• a light valve, disposed on a transmission path of the plurality of sub-illumination beams generated by the color wheel of the color light generating assembly, wherein the light valve is configured to sequentially convert the sub-illumination beams into a plurality of sub-image beams;
• and
• a projection lens, disposed on a transmission path of the sub-image beams.

A projection method, comprising:

• providing a color wheel;
• rotating the color wheel and reciprocating the color wheel along a predetermined path simultaneously;
• irradiating an illumination beam onto the rotating and reciprocating color wheel along a predetermined direction so as to sequentially convert the illumination beam into a plurality of sub-illumination beams of different colors, wherein the predetermined direction is non-parallel to the predetermined path;
• converting the sub-illumination beams into a plurality of sub-image beams;
• and
• projecting the sub-image beams.