Patent ID: 11921344
Assignee: LECC TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A laser module, comprising:
a laser unit being configured to emit a laser light;
a focusing lens corresponding in position to the laser unit, wherein the focusing lens is configured to converge the laser light emitted from the laser unit so as to outwardly output the laser light;
an electric device including a focusing ring, a voice coil motor electrically connected to the focusing ring, and a motor base accommodating the focusing ring and the voice coil motor, wherein the focusing ring is mounted on the focusing lens, and the focusing lens is accommodated in the motor base, and wherein the voice coil motor is configured to drive and move the focusing lens in a straight line toward or away from the laser unit with the focusing ring, so as to adjust a focal length of the focusing lens; and
a temperature control device mounted on the laser unit and including a thermoelectric cooling module and a thermistor electrically connected to the thermoelectric cooling module, wherein the thermistor is configured to detect a working temperature of the laser unit, and the thermoelectric cooling module is configured to cooperate with the thermistor to adjust the working temperature of the laser unit, so that an error of the working temperature of the laser unit is within ±1° C.