Camera module and moving device
A camera module disclosed in an embodiment of the present invention may include a lens holder having at least one lens; a case spaced apart from an outside of the lens holder; a plurality of first elastic springs having one end connected to the lens holder and the other end connected to the case; a driving member disposed to be adjacent to the lower part of the lens holder; a plurality of guide portions which have inner side surfaces facing the lower part of the lens holder, and which are spaced apart from each other; and a plurality of second elastic springs for connecting each of the plurality of guide portions to the case, wherein the driving member may include a plurality of stators disposed on a substrate, and a plurality of movers which face the respective plurality of stators and which are disposed on lower surfaces of the plurality of guide portions.
1 . A camera module comprising:
a lens holder having at least one lens;
a case spaced apart from an outer side of the lens holder;
a plurality of first elastic springs having one end connected to the lens holder and an other end connected to the case;
a plurality of driving members disposed around a lower portion of the lens holder;
a plurality of guide portions having an inner side surface facing the lower portion of the lens holder and arranged along an outer periphery of the lens holder; and
a plurality of second elastic springs connecting each of the plurality of guide portions to different positions of the case,
wherein each of the plurality of driving members includes a stator and a mover disposed on each of the plurality of guide portions and facing the stator,
wherein the inner side surfaces of the plurality of guide portions are inclined with respect to an optical axis of the lens,
wherein the inner side surfaces of the plurality of guide portions overlap with the lens holder in a direction of the optical axis of the lens,
wherein the inner side surfaces of each of the plurality of guide portions overlap with the lens holder in a direction perpendicular to the optical axis, and
wherein each of the inner side surfaces of the plurality of guide portions is inclined in a range of 30 degrees to 60 degrees relative to the optical axis.
2 . The camera module of claim 1 , wherein the second elastic springs are located between the plurality of guide portions and the case,
wherein each of the plurality of stators is a coil, and
wherein each of the plurality of movers is a magnet.
3 . The camera module of claim 1 , wherein the inner side surface of each of the plurality of guide portions has the inclined inner side surface with an upper end higher than a lower end, and
wherein the inner side surfaces of the plurality of guide portions face each other in the direction perpendicular to the optical axis, and a distance between the upper ends of the inner side surfaces facing each other is larger than a distance between the lower ends in the direction perpendicular to the optical axis.
4 . The camera module of claim 1 , wherein the plurality of first elastic springs is three or four, and
wherein the plurality of second elastic springs is three or four.
5 . The camera module of claim 1 , comprising: a substrate; and
an image sensor aligned on the substrate in the optical axis with the lens.
6 . The camera module of claim 1 , wherein the lens holder is moved up or down in the direction of the optical axis by the driving members.
7 . The camera module of claim 6 , wherein the lens holder is moved in a horizontal direction based on the optical axis by the driving members, and
wherein the horizontal direction is the direction perpendicular to the optical axis.
8 . The camera module of claim 7 , wherein the lens holder is tilted based on the optical axis by the driving member.
9 . The camera module of claim 1 , wherein the inner side surface of each of the guide portions has a radial length ranging from 0.4 mm to 0.7 mm.
10 . A moving device having a camera module according to claim 1 .
11 . The camera module of claim 1 , wherein the plurality of first elastic springs is arranged at an equilateral angle along an outer side of the lens holder with respect to the optical axis of the lens.
12 . The camera module of claim 11 , wherein the plurality of first elastic springs is spaced apart at an angle of 90 degrees based on the optical axis.
13 . The camera module of claim 11 , wherein the plurality of second elastic springs arranged at an equilateral angle with respect to the optical axis.
14 . A camera module comprising:
a substrate having an image sensor;
a lens holder disposed on the image sensor and having a plurality of lenses;
a case disposed around the lens holder;
a plurality of first elastic springs connected between the lens holder and the case;
a plurality of guide portions disposed between the lens holder and the case;
a plurality of driving members for driving each of the plurality of guide portions; and
a plurality of second elastic springs connected between each of the plurality of guide portions and the case,
wherein each of the plurality of driving members is individually driven,
wherein each of the plurality of guide portions includes an inner surface inclined with respect to an optical axis of the lenses,
wherein each of the inner surfaces faces a lower surface of the lens holder and has a region spaced apart from the lower surface of the lens holder,
wherein each of the plurality of guide portions has the inclined inner side surface overlapping a lower end of the lens holder in a direction of the optical axis,
wherein the plurality of driving members includes a plurality of stators disposed on the substrate and a plurality of movers facing each of the plurality of stators and coupled to each of the plurality of guide portions,
wherein a number of each of the plurality of guide portions, each of the plurality of driving members, each of the first elastic springs and each of the second elastic springs is two or more, and is disposed in a same number as each other, and
wherein each inner side surface of each of the plurality of guide portions is inclined in a range of 30 degrees to 60 degrees relative to the optical axis.
15 . The camera module of claim 14 , wherein the plurality of first elastic springs is equiangularly disposed with respect to the optical axis of the lenses, and
wherein the plurality of second elastic springs is equiangularly disposed with respect to the optical axis.
16 . The camera module of claim 14 , wherein the second elastic springs are located between the plurality of guide portions and the case,
wherein each of the plurality of stators is a coil, and
wherein each of the plurality of movers is a magnet.
17 . The camera module of claim 14 , wherein the inner side surfaces of the plurality of guide portions are opposed to each other based on the lens holder, and
wherein the lens holder is up or down in the direction of the optical axis by the driving members.