Hermetic sealed beam projector module and method for manufacturing the same

A beam projector module comprising:

• a light source configured to output light;
• a substrate configured to support the light source;
• an optical device configured to reduce the light in terms of intensity output to a predetermined space;
• a frame configured to separate the optical device from the light source by a predetermined distance;
• a sensor configured to measure a state of an inner space defined by the substrate, the optical device, and the frame, wherein a pressure inside the inner space is lower than that outside the inner space;
• and
• a processor configured to change power supplied to the light source depending on a measured value of the sensor.

Abeam projector module comprising:

• a light source configured to output light;
• a substrate configured to support the light source;
• an optical device configured to reduce the light in terms of intensity output to a predetermined space;
• a frame configured to separate the optical device from the light source by a predetermined distance;
• a sensor configured to measure a state of an inner space defined by the substrate, the optical device, and the frame;
• and
• a processor configured to determine a change of a measured value of the sensor and determine an operation mode of the light source.