Importance

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Abstract

A laser module capable of being connected onto a circuit board includes a main body having a front opening, a rear opening, and an inner wall, a focusing lens connected in the front opening, a housing mounted to the exterior of the main body and enclosing the main body, with one end of the housing corresponding to the focusing lens having a through hole and the other end having an opening to accommodate the insertion of the main body into the housing. The laser module also includes a laser diode press-fitted onto the inner wall of the main body from the rear opening of the main body and aligned with the focusing lens as well as electrically connected to the circuit board, an image lens aligned with the focusing lens, an air-tight structure to seal the image lens inside the housing, a temperature sensor positioned under the laser diode as well as disposed on and electrically connected with the circuit board, and a temperature control plate positioned under the laser diode and the temperature sensor as well as disposed in the rear opening of the main body.

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First Claim