Lens driving module with casing having plastic material and assembly method thereof

A lens driving module, configured to drive an optical lens, comprising:

• a holder, having a receiving space for the optical lens to be disposed therein;
• a casing, having a plastic material;
• a base, having a plurality of protrusions extending toward the casing, and each protrusion has a side surface, wherein the holder is disposed between the casing and the base;
• an electromagnetic driving assembly, disposed between the holder and the casing and configured to force the holder and the optical lens to move relative to the base;
• a glue, disposed between the side surfaces and the casing, wherein the side surfaces are parallel to a central axis of the optical lens;
• and
• a sensing assembly, disposed on the casing and configured to sense the relative position of the holder and the base,
• wherein the casing defines a main body and a first sub-sidewall, the first sub-sidewall is detachably connected to the main body, and the sensing assembly is disposed on the first sub-sidewall.

A lens driving module, configured to drive a plurality of optical lenses, comprising:

• a first holder, configured to sustain a first optical lens;
• a second holder, configured to sustain a second optical lens;
• a casing, having a plastic material;
• a base, connected to the casing, wherein a receiving space is defined by the casing and the base, and the first and second holders are disposed in the receiving space;
• an electromagnetic driving assembly, disposed in the receiving space and configured to force the first and second holders to move relative to the base;
• and
• a sensing assembly, disposed on the casing and configured to sense the relative position of the first and second holders and the base.