Projector, heat dissipation module and heat dissipation fin

A projector comprising:

• a casing, an optical engine module and a heat dissipation module, wherein,
• the optical engine module is disposed in the casing and the optical engine module comprises a light source, a light valve and a projection lens, wherein,
• the light source is configured to generate an illumination light beam;
• the light valve is configured to convert the illumination light beam into an image beam;
• and
• the projection lens is configured to project the image beam;
• and
• the heat dissipation module is disposed in the casing and comprises at least one heat pipe and a heat dissipation fin set, wherein,
• the heat dissipation fin set comprises at least one heat dissipation fin and at least one turbulent structure, wherein the heat dissipation fin has a surface comprising a heat pipe arrangement region and a turbulent region adjacent to each other, the at least one heat pipe passes through the heat pipe arrangement region, an air flowing section is formed near the at least one heat pipe, the turbulent region has a turbulent section corresponding to the air flowing section, and the at least one turbulent structure is disposed in the turbulent region and extends continuously in the turbulent section.