Sliding mechanism and electronic device using the same

A electronic device, comprising:

• a main body comprising:
• a lens, and
• a heat-dissipating structure thermal-conductively connected to the lens,
• wherein the main body defines a heat-dissipating channel and the heat-dissipating structure arranged therein,
• wherein the outer wall of the main body forms a opening corresponding to the lens and a plurality of apertures near the opening;
• and
• a lens structure comprising:
• a mounting seat, having a first through-hole formed thereon,
• a sliding carriage, coupled to the mounting seat and slidable between two operating positions along a sliding axis, having a second through-hole formed thereon, wherein the second through-hole correspondingly aligns the first through-hole in one of the two operating position,
• at least one elastic member, having one end coupled to the mounting seat 11 and the other end coupled to the sliding carriage,
• wherein when the sliding carriage is urged to move a predetermined distance form one of the two operating positions, the elastic member provides resilient force to drive the sliding carriage toward the other operating position.