a light-emitting assembly configured to emit a laser beam;

a converging lens group configured to converge the laser beam emitted by the light-emitting assembly;

a phosphor wheel including a fluorescence-exciting region and a laser-reflecting region; the fluorescence-exciting region being configured to generate a fluorescence beam with a color different from the converged laser beam under an excitation of the laser beam;

a combining component disposed between the light-emitting assembly and the converging lens group;

a beam contraction lens group disposed between the light-emitting assembly and the combining component;

a light homogenizing member disposed between the beam contraction lens group and the combining component; and

a turning component located between the light-emitting assembly and the combining component; wherein,

the fluorescent beam is configured to be incident on the combining component after passing through the converging lens group; the laser-reflecting region is configured to reflect the converged laser beam to the converging lens group; the laser beam is configured to be incident to the combining component after passing through the converging lens group; the combining component is configured to reflect the fluorescence beam excited by the phosphor wheel and the laser beam reflected by the phosphor wheel to a beam outlet of the laser source;

the beam contraction lens group is configured to contract a beam spot of the laser beam emitted by the light-emitting assembly;

the light homogenizing member is configured to homogenize the laser beam emitted by the light-emitting assembly; and

the light-emitting assembly emits one laser beam; and the turning component is configured to split the one laser beam to obtain a first laser beam and a second laser beam, and reflect the first laser beam and the second laser beam to the converging lens group.