Optical module

An optical module, comprising:

• an upper shell;
• a lower shell covered with the upper shell to form a mounting cavity;
• a circuit board disposed in the mounting cavity;
• a light source mounting portion fixedly connected to the upper shell;
• a supporting column located at a side of the light source mounting portion proximate to the lower shell and connected to the light source mounting portion;
• a pressing plate, the pressing plate being closer to the lower shell than the light source mounting portion;
• and including:
• a first connecting portion connected to the supporting column;
• and
• a second connecting portion connected to the first connecting portion, and the second connecting portion being closer to the upper shell than the first connecting portion;
• a light source emitter disposed between the second connecting portion and the light source mounting portion,
• a fixing portion located at a side of the light source mounting portion and connected to the light source mounting portion;
• and
• a circuit sub-board disposed at a side of the circuit board proximate to the upper shell and disposed in the fixing portion;
• the circuit sub-board being electrically connected to the circuit board and the light source emitter.