Lens assembly and camera module including the same
A lens assembly includes a plurality of lens arrays sequentially disposed from an object side toward an image side, wherein each lens array includes a plurality of lenses, and a plurality of lenses included in a lens array of the plurality of lens arrays, disposed to be closest to the image side have a length in a first axis direction, perpendicular to an optical axis, longer than a length in a second axis direction, perpendicular to both the optical axis and the first axis direction.
1. A lens assembly comprising:
a plurality of lens arrays sequentially disposed from an object side toward an image side,
wherein each lens array comprises a plurality of lenses, and
wherein a plurality of lenses included in a lens array of the plurality of lens arrays disposed to be closest to the image side have a length in a first axis direction, perpendicular to an optical axis, longer than a length in a second axis direction, perpendicular to both the optical axis and the first axis direction,
wherein the plurality of lens arrays comprise a first lens array and a second lens array,
wherein a protrusion is disposed in any one of the first lens array and the second lens array and a recess is disposed in the other thereof, and
wherein the protrusion and the recess are in contact with each other to be coupled.
2. The lens assembly of claim 1 , wherein
a surface in which the protrusion and the recess face each other in a direction perpendicular to the optical axis is an inclined curved surface.
3. The lens assembly of claim 2 , wherein
the protrusion has a truncated cone shape.
4. The lens assembly of claim 2 , wherein
the protrusion and the recess are gradually reduced in diameter in a direction from the protrusion to the recess.
5. The lens assembly of claim 2 , wherein
a height of the protrusion is greater than a depth of the recess.
6. The lens assembly of claim 1 , wherein
the protrusion and the recess are each positioned in a region surrounded by the plurality of lenses.
7. The lens assembly of claim 1 , wherein,
in the plurality of lenses included in the lens array disposed closest to the image side, side surfaces facing each other in the second axis direction have a linear shape when viewed in an optical axis direction.
8. The lens assembly of claim 1 , wherein,
in the plurality of lenses included in the lens array disposed closest to the image side, a ratio of a length in the second axis direction to a length in the first axis direction is greater than 0.5 and less than 1.
9. The lens assembly of claim 1 , wherein,
in a plurality of lenses included in a lens array of the plurality of lens arrays, disposed to be adjacent to the lens array disposed closest to the image side, a length in the first axis direction is longer than a length in the second axis direction.
10. The lens assembly of claim 1 , wherein,
in a plurality of lenses included in a lens array of the plurality of lens arrays, disposed closest to the object side, an object-side surface is convex.
11. The lens assembly of claim 10 , wherein
the plurality of lenses included in the lens array disposed closest to the object side have a positive refractive power.
12. A camera module comprising:
a plurality of lens modules each comprising a plurality of lenses and disposed to be adjacent to each other;
a housing accommodating the plurality of lens modules; and
an image sensor module coupled to the housing and having a single image sensor,
wherein the image sensor has a longer side extending in a first axis direction, perpendicular to an optical axis, and a shorter side extending in a second axis direction, perpendicular to both the optical axis and the first axis direction, and
wherein lenses disposed to be closest to an image side, among the plurality of lenses included in each lens module, have a length in the first axis direction longer than a length in the second axis direction.
13. The camera module of claim 12 , wherein
the lenses disposed closest to the image side comprise at least one of side surfaces facing each other in the first axis direction and the second axis direction having a linear shape when viewed in an optical axis direction.
14. The camera module of claim 12 , wherein
the lenses disposed closest to the image side comprise an optical portion and a flange portion extending from the optical portion, and
the optical portion comprises a first edge having an arc shape, a second edge provided on the opposite side from the first edge based on the optical axis and having an arc shape, and third and fourth edges connecting the first edge and the second edge, when viewed in an optical axis direction.
15. The camera module of claim 14 , wherein
at least one of the third edge and the fourth edge has a linear shape when viewed in the optical axis direction.
16. The camera module of claim 12 , wherein
lenses, among the plurality of lenses included in each lens module, disposed to face the lenses disposed closest to the image side, comprise a length in the first axis direction longer than a length in the second axis direction.
17. The camera module of claim 12 , further comprising:
a single infrared cut-off filter disposed between the plurality of lens modules and the image sensor,
wherein the infrared cut-off filter comprises a light blocking portion disposed on at least one of a surface facing the lens module and a surface facing the image sensor, and
wherein the light blocking portion divides the infrared cut-off filter into a plurality of regions to correspond to the number of the plurality of lens barrels.
18. A camera module comprising:
an array of a plurality of lens modules,
wherein each lens module comprises lenses sequentially disposed from an object side toward an image side,
wherein an image side most lens of each lens module comprises a length in a first axis direction, perpendicular to an optical axis, longer than a length in a second axis direction, perpendicular to both the optical axis and the first axis direction,
wherein the plurality of lens arrays comprise a first lens array and a second lens array,
wherein a protrusion is disposed in the first lens array or the second lens array and a recess is disposed in the other thereof, and
wherein the protrusion and the recess are in contact with each other to be coupled.
19. The camera module of claim 18 , wherein the array of the plurality of lens modules comprises a plurality of lens arrays sequentially disposed from an object side toward an image side,
wherein the lenses are disposed in the plurality of lens arrays, and
wherein the image side most lenses are disposed in an image side most lens array of the plurality of lens arrays.
20. A camera module comprising:
an array of a plurality of lens modules,
wherein each lens module comprises lenses sequentially disposed from an object side toward an image side,
wherein an image side most lens of each lens module comprises a length in a first axis direction, perpendicular to an optical axis, longer than a length in a second axis direction, perpendicular to both the optical axis and the first axis direction,
wherein each lens module of the array of the plurality of lens modules comprises a lens barrel, and
wherein the lenses of each lens module are disposed in a respective lens barrel.
21. The camera module of claim 20 , further comprising:
a housing accommodating the array of the plurality of lens modules; and
an image sensor module coupled to the housing and having a single image sensor,
wherein the image sensor has a longer side extending in the first axis direction, and a shorter side extending in the second axis direction.
22. The camera module of claim 18 , wherein one or more of the lenses disposed on the object side of the image side most lens of each lens module comprises a length in the first axis direction longer than a length in the second axis direction.