Camera module
The camera module comprises: a housing; a lens holder disposed inside the housing; a lens module disposed inside the lens holder; and a printed circuit board disposed at a lower portion of the housing and including an image sensor facing the lens module, wherein the lens module is screw-coupled to an inner surface of the lens holder, wherein the lens holder is screw-coupled to an inner surface of the housing, and wherein the screw-coupled region of the lens module is disposed more adjacent to an upper end of the lens module than a lower end thereof.
1 . A camera module comprising:
a housing;
a lens holder disposed inside the housing;
a lens module disposed inside the lens holder; and
a printed circuit board disposed at a lower portion of the housing and including an image sensor facing the lens module,
wherein a region of the lens module is screw-coupled to an inner surface of the lens holder,
wherein the lens holder is screw-coupled to an inner surface of the housing,
wherein the screw-coupled region of the lens module is disposed more adjacent to an upper end of the lens module than a lower end thereof;
wherein the housing includes a body part in a shape of a cylinder and a protruded part protruded downward from a lower surface of the body part,
wherein a coupling member is disposed between the protruded part and the printed circuit board,
wherein, when the housing or the coupling member expands, the upper end of the lens module is configured to remain fixed with the lens holder at the screw-coupled region, and a lower end of the lens module is configured to expand to come closer to the printed circuit board, and
wherein, when the housing or the coupling member is contracted, the upper end of the lens module is configured to remain fixed with the lens holder at the screw-coupled region, and the lower end of the lens module is configured to contract away from the printed circuit board.
2 . The camera module according to claim 1 , wherein the housing includes a first space section in which the lens holder is disposed and a second space section disposed at an inner side of the protruded part, and
wherein a lower end of the lens module is disposed in the second space section.
3 . The camera module according to claim 2 , wherein an inner surface of the housing to which the lens holder and the housing are screw-coupled is the first space section.
4 . The camera module according to claim 1 , wherein the lens holder includes a third space section whose upper and lower surfaces are open and the lens module is coupled thereto,
wherein a coupling part to which the lens module is screw-coupled is disposed on an inner surface of the third space section, and
wherein the coupling part is disposed adjacent to an upper end of the lens holder.
5 . The camera module according to claim 1 , wherein a material of the housing and the lens holder is plastic.
6 . The camera module according to claim 1 , wherein a length of the screw-coupled region between the lens module and the lens holder in an optical axis direction is equal to or less than 1/2 of a length of the lens module.
7 . The camera module according to claim 1 , wherein the coupling member includes epoxy.
8 . The camera module according to claim 1 , wherein the lens holder includes a first coupling portion screwed to the housing, and
wherein the first coupling portion has a shape in which a portion of a side surface of the lens holder protrudes outward relative to other areas.
9 . The camera module according to claim 1 , wherein the lens module includes a third coupling portion screwed to the lens holder, and
wherein the third coupling portion has a shape in which a portion of the a side surface of the lens module protrudes outward relative to other areas.
10 . A camera module comprising:
a housing;
a lens holder disposed on an upper portion of the housing;
a lens module disposed at an inner side of the housing and the lens holder; and
a printed circuit board being disposed at a lower portion of the housing and including an image sensor facing the lens module,
wherein a region of the lens module is screw-coupled to an inner surface of the lens holder,
wherein the screw-coupled region of the lens module is disposed more adjacent to an upper end of the lens module than a lower end thereof,
wherein a second coupling member is disposed between the housing and the lens holder,
wherein the second coupling includes an epoxy,
wherein the housing includes a second protruded part protruded upward from an upper surface,
wherein a third protruded part being protruded outward from other regions is disposed at a lower portion of the lens holder, and
wherein the second coupling member is disposed between the second protruded part and the third protruded part.
11 . The camera module according to claim 10 , wherein the housing includes a body part in the shape of a cylinder and a first protruded part being protruded downward from a lower surface of the body part, and
wherein a first coupling member is disposed between the first protruded part and the printed circuit board.
12 . The camera module according to claim 11 , wherein the first coupling member includes epoxy.
13 . The camera module according to claim 11 , wherein a first space is formed inside the body part,
wherein a second space communicating with the first space is formed inside the first protruded part, and
wherein a cross-sectional area of the second space is larger than that of the first space.
14 . The camera module according to claim 10 , wherein a length of the screw-coupled region of the lens module and the lens holder with respect to an optical axis direction is one half or less of the length of the lens module.
15 . The camera module according to claim 10 , wherein an outer surface of the third protruded part is disposed inner than an outer surface of the second protruded part.
16 . A camera module comprising:
a housing;
a lens holder disposed on an upper portion of the housing;
a lens module disposed at an inner side of the housing and the lens holder; and
a printed circuit board being disposed at a lower portion of the housing and including an image sensor facing the lens module,
wherein a region of the lens module is screw-coupled to an inner surface of the lens holder,
wherein the screw-coupled region of the lens module is disposed more adjacent to an upper end of the lens module than a lower end thereof,
wherein the lens module includes a second coupling portion screwed to the lens holder, and
wherein the second coupling portion has a shape in which a portion of a side surface of the lens module protrudes outward relative to other areas.
17 . A camera module comprising:
a housing;
a lens holder disposed on an upper portion of the housing;
a lens module disposed at an inner side of the housing and the lens holder; and
a printed circuit board being disposed at a lower portion of the housing and including an image sensor facing the lens module,
wherein a region of the lens module is screw-coupled to an inner surface of the lens holder,
wherein the screw-coupled region of the lens module is disposed more adjacent to an upper end of the lens module than a lower end thereof,
wherein the housing includes a body part in the shape of a cylinder and a first protruded part being protruded downward from a lower surface of the body part,
wherein a first coupling member is disposed between the first protruded part and the printed circuit board, and
wherein a side surface of the first protruded part forms the same plane as a side surface of the printed circuit board.