Light source module and projection device

A projection device, comprising an illumination system, suitable for providing an illumination beam, the projection device further comprising:

• a light source module, configured to provide a laser beam to form the illumination beam, comprising:
• a plurality of laser source units, wherein the laser source units comprise a first laser source unit and a second laser source unit, which are respectively configured to provide a first laser beam and a second laser beam;
• and
• a focusing lens, located on transmission paths of the first laser beam and the second laser beam, wherein the first laser source unit and the second laser source unit face the focusing lens, the first laser beam and the second laser beam are respectively incident on the focusing lens from the first laser source unit and the second laser source unit along a first direction, the first laser source unit and the second laser source unit are arranged along a second direction, and when viewed along a third direction, the first laser source unit and the second laser source unit do not overlap, and the first direction, the second direction, and the third direction are perpendicular to one another;
• a light valve, disposed on a transmission path of the illumination beam and configured to convert the illumination beam into an image beam;
• and
• a projection lens, disposed on a transmission path of the image beam and configured to project the image beam out of the projection device.