Lens module and camera module
An embodiment of the present invention relates to a lens module comprising: a first lens which comprises a center portion including a curved surface and a periphery portion extending from the center portion; an electrode which is disposed on the first lens; and first and second conductive parts which are disposed on the electrode, wherein the first and second conductive parts include first and second surfaces opposite to each other with respect to the center portion therebetween, respectively, and the first and second surfaces are convex toward the center portion.
1 . A lens module comprising:
a first lens comprising a center portion including a curved surface and a periphery portion extended from the center portion;
an electrode disposed on the first lens; and
a first conductive part and a second conductive part disposed in the electrode,
wherein the first conductive part includes a first surface and the second conductive part includes a second surface, the first surface and the second surface facing each other with respect to the center portion therebetween respectively,
wherein the first surface overlaps with the second surface in a direction perpendicular to an optical axis of the first lens, and
wherein the first surface and the second surface are convex facing toward the center portion,
wherein the first surface of the first conductive part comprises a first-first surface and a first-second surface,
wherein the second surface of the second conductive part comprises a second-first surface overlapped with the first-first surface of the first conductive part in a first direction perpendicular to an optical axis of the first lens, and a second-second surface overlapped with the first-second surface of the first conductive part in the first direction,
wherein the shortest distance on a surface of the electrode connecting the first-first surface of the first conductive part and the second-first surface of the second conductive part is the same as the shortest distance from the surface of the electrode connecting the first-second surface of the first conductive part and the second-second surface of the second conductive part,
wherein the first-first surface of the first conductive part is disposed on a periphery portion of the first surface of the first conductive part and the first-second surface of the first conductive part is disposed on a center portion of the first surface of the first conductive part, and
wherein the first-first surface of the first surface of the first conductive part and the first-second surface of the first surface of the first conductive part are spaced apart from each other in a second direction perpendicular to the optical axis and the first direction.
2 . The lens module according to claim 1 , wherein the first lens further comprises a boundary portion where the center portion and the periphery portion meet,
wherein a curvature of a portion of the boundary portion facing the first surface of the first conductive part is different from a curvature of the first surface of the first conductive part, and
wherein a curvature of a portion of the boundary facing the second surface of the second conductive part is different from a curvature of the second surface of the second conductive part.
3 . The lens module according to claim 1 , wherein a first curvature of the first surface of the first conductive part is different from a curvature of the second surface of the second conductive part.
4 . The lens module according to claim 1 , wherein the first lens further comprises a boundary portion where the center portion and the periphery portion meet, and,
wherein the shortest distance between the first-first surface of the first conductive part and the boundary portion of the first lens is different from the shortest distance between the first-second surface of the first conductive part and the boundary portion.
5 . The lens module according to claim 4 , wherein the first conductive part is bent in a direction different from a bending direction of a portion of the boundary portion adjacent to the first conductive part.
6 . The lens module according to claim 1 , wherein the first lens further comprises an outer edge of the periphery portion,
wherein the first surface of the first conductive part comprises a first-first surface and a first-second surface, and
wherein the shortest distance between the first-first surface of the first conductive part and the outer edge of the first lens is different from the shortest distance between the first-second surface of the first conductive part and the outer edge of the first lens.
7 . The lens module according to claim 1 , wherein the first lens further comprises a boundary portion where the center portion and the periphery portion meet and an outer edge of the periphery portion, and
wherein the first conductive part and the second conductive part are disposed close to the boundary portion than the outer edge of the periphery portion of the first lens.
8 . The lens module according to claim 1 , wherein the first lens further comprises a boundary portion where the center portion and the periphery portion meet,
wherein a curvature of each of the first conductive part and the second conductive part are different from a curvature of the boundary portion.
9 . The lens module according to claim 1 , wherein the first conductive part is symmetrical to the second conductive part with respect to an optical axis of the first lens.
10 . The lens module according to claim 1 , wherein the first lens is a lens disposed at an uppermost end.
11 . The lens module according to claim 1 , wherein the electrode comprises a transparent electrode.
12 . The lens module according to claim 1 , wherein the first conductive part and the second conductive part are fixed to the electrode by a conductive adhesive.
13 . A camera module comprising:
a board;
a holder disposed on the board;
a lens module of claim 1 disposed in the holder;
a lens disposed inside the holder and disposed below the first lens of the lens module;
an image sensor disposed on the board and disposed at a position corresponding to the lens; and
a flexible printed circuit board having one end disposed in the board and the other end disposed in the holder.
14 . A lens module comprising:
a first lens comprising a center portion including a curved surface and a periphery portion extended from the center portion;
an electrode disposed on the first lens; and
a first conductive part and a second conductive part disposed in the electrode,
wherein at least one surface of an upper surface or a lower surface of the periphery portion comprises a flat portion,
wherein the first conductive part and the second conductive part are disposed in the flat portion,
wherein the first conductive part and the second conductive part are disposed to face each other with the center portion therebetween,
wherein the first lens comprises a boundary portion where the center portion and the periphery portion meet,
wherein the first conductive part and the second conductive part comprise a shape symmetrical to each other with respect to an optical axis of the center portion,
wherein the shortest straight line distance between the center portion of the first conductive part and the center portion of the second conductive part is smaller than the shortest straight line distance between the end portion of the first conductive part and the end portion of the second conductive part,
wherein the first conductive part includes a first surface and the second conductive part includes a second surface, the first surface and the second surface facing each other with respect to the center portion therebetween respectively,
wherein the first surface overlaps with the second surface in a direction perpendicular to an optical axis of the first lens, and
wherein the first surface and the second surface are convex facing toward the center portion,
wherein the first surface of the first conductive part comprises a first-first surface and a first-second surface,
wherein the second surface of the second conductive part comprises a second-first surface overlapped with the first-first surface of the first conductive part in a first direction perpendicular to an optical axis of the first lens, and a second-second surface overlapped with the first-second surface of the first conductive part in the first direction,
wherein the shortest distance on a surface of the electrode connecting the first-first surface of the first conductive part and the second-first surface of the second conductive part is the same as the shortest distance from the surface of the electrode connecting the first-second surface of the first conductive part and the second-second surface of the second conductive part,
wherein the first-first surface of the first conductive part is disposed on a periphery portion of the first surface of the first conductive part and the first-second surface of the first conductive part is disposed on a center portion of the first surface of the first conductive part, and
wherein the first-first surface of the first surface of the first conductive part and the first-second surface of the first surface of the first conductive part are spaced apart from each other in a second direction perpendicular to the optical axis and the first direction.
15 . The lens module according to claim 14 ,
wherein the shortest linear distance between the first-first surface of the first conductive part and the boundary portion of the first lens is different from the shortest linear distance between the first-second surface of the first conductive part and the boundary portion of the first lens.
16 . The lens module according to claim 14 , wherein the first conductive part is bent in a direction different from a bending direction of a portion of the boundary portion adjacent to the first conductive part.
17 . The lens module according to claim 14 , wherein the first conductive part and the second conductive part are fixed to the electrode by a conductive adhesive.