Method for manufacturing LiDAR device, and active align device for implementing method for manufacturing lidar device

A method for manufacturing a LiDAR (Light Detection And Ranging) device comprising a laser emitting module, a laser detecting module, an emitting optic module and a detecting optic module, the method comprising:

• providing a LiDAR module comprising the laser emitting module and the laser detecting module on a target region;
• positioning the detecting optic module on the laser detecting module;
• adjusting a relative position of the laser detecting module with respect to the detecting optic module based on first detecting data obtained from the laser detecting module, wherein the first detecting data is generated based on light having a predetermined pattern;
• fixing the laser detecting module so that the adjusted relative position of the laser detecting module with respect to the detecting optic module is maintained;
• positioning the emitting optic module on the laser emitting module;
• adjusting a relative position of the laser emitting module with respect to the emitting optic module based on image data obtained from at least one of image sensors, wherein the image data is generated for laser emitted from the laser emitting module;
• shifting the adjusted relative position of the laser emitting module with respect to the emitting optic module based on second detecting data obtained from the laser detecting module, wherein the second detecting data is generated based on laser emitted from the laser emitting module;
• and
• fixing the laser emitting module so that the shifted relative position of the laser emitting module with respect to the emitting optic module is maintained.