Camera module and optical apparatus comprising same
An embodiment comprises: a lower surface; a first lens barrel comprising a first protrusion protruding from the lower surface; a first lens array comprising a plurality of first lenses disposed in the first lens barrel; a first holder comprising a first hole into which the first protrusion is inserted; a first adhesive member disposed between a lower surface of the first lens barrel around the first protrusion and an upper surface of the first holder around the first hole; and a first image sensor disposed under the first hole, wherein the first adhesive member comprises one end and the other end, which are disposed to encompass the first hole, and the one end and the other end of the first adhesive member are spaced apart from each other.
1. A camera module comprising:
a lens barrel comprising a protrusion on a lower surface thereof;
a lens array including a plurality of lenses;
a holder comprising a through-hole into which the protrusion of the lens barrel is inserted;
a first adhesive member disposed between the lens barrel and the holder;
an image sensor disposed under the through-hole;
a retainer coupled to an upper end of the lens barrel and fixing the lens array;
a first O-ring disposed on an outer circumferential surface of the retainer; and
a reinforcement adhesive member disposed between the retainer and the lens barrel,
wherein an outer circumferential surface of the protrusion inserted into the through-hole is spaced apart from an inner circumferential surface of the through-hole,
wherein the lens barrel comprises a plurality of seating portions defining hollow regions having different diameters, and the lens array is disposed on the plurality of seating portions,
wherein the retainer comprises:
an engaging portion coupled to an outer circumferential surface of an uppermost seating portion among the plurality of seating portions of the lens barrel;
a bent portion bent from the engaging portion to support an edge of a first lens of the plurality of lenses; and
a ring-shaped groove formed in the outer circumferential surface of the retainer,
wherein the first O-ring is seated in the ring-shaped groove, and
wherein the reinforcement adhesive member is disposed to cover a lowermost surface of the uppermost seating portion and a portion of the engaging portion.
2. The camera module according to claim 1 , wherein the first adhesive member is disposed between the lower surface of the lens barrel around the protrusion and an upper surface of the holder around the through-hole.
3. The camera module according to claim 1 , wherein the retainer is in contact with an uppermost lens among the plurality of lenses.
4. The camera module according to claim 1 , wherein a screw thread for fastening is formed in each of the uppermost seating portion of the lens barrel and the engaging portion.
5. The camera module according to claim 3 , wherein the uppermost lens has the largest diameter among the plurality of lenses.
6. The camera module according to claim 3 , wherein the uppermost lens has an exit surface which is upwardly convex.
7. The camera module according to claim 1 , wherein an upper end of the bent portion is located higher than an upper end of the lens barrel.
8. The camera module according to claim 6 , wherein the exit surface of the uppermost lens protrudes out of the bent portion.
9. The camera module according to claim 1 , comprising a second O-ring disposed between one of the plurality of seating portions and the lens array.
10. The camera module according to claim 9 , wherein the second O-ring is disposed between a first seating portion of the plurality of seating portions and the first lens of the plurality of lenses,
wherein the first seating portion is located on an uppermost side of the plurality of seating portions, and
wherein the first lens is located on an uppermost side of the plurality lenses.
11. The camera module according to claim 1 , wherein the protrusion is spaced apart from an inner circumference surface of the through-hole.
12. The camera module according to claim 1 , wherein a first screw thread is disposed on an outer circumference surface of the uppermost seating portion, and
wherein the engaging portion comprises a second screw disposed on an inner circumference surface thereof to engage with the first screw thread.
13. The camera module according to claim 12 , wherein the reinforcement adhesive member is in contact with lower ends of the first and second screw threads.
14. The camera module according to claim 1 , wherein the reinforcement adhesive member is formed by an epoxy.
15. The camera module according to claim 1 , wherein the reinforcement adhesive member is configured to prevent separation or distortion of the retainer and the lens barrel.