Portable water bottle having a UV light sterilization module

A sterilization device, comprising:

• a body having a space inside of the body;
• a light module configured to emit a sterilization light into the body;
• a body coupler configured to connect the light module to the body;
• a sensor communicatively coupled to the light module and operable to sense at least one of a user gesture, an occurrence of a predetermined motion of the body or the light module, or a combination of the user gesture and the occurrence of the predetermined motion of the body or the light module,
• wherein the light module is further configured to start and stop emitting of the sterilization light based on a sensing result of the sensor, and comprises:
• a first substrate;
• a light emitting layer disposed on the first substrate and configured to emit the sterilization light, the light emitting layer including a second substrate on which a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer are disposed;
• an outlet having a path through which the sterilization light emitted from the light emitting layer is discharged outside the light module;
• and
• a window member disposed on the first substrate and configured to protect the light emitting layer from an exterior of the light module,
• wherein the second substrate includes an inclined region and configured to increase an extraction of the sterilization light generated in the active layer, and
• wherein the light module includes a reflector disposed on the first substrate and configured to reflect the sterilization light emitted from the light emitting layer.