Abstract: A lens module and an assembling method therefor are provided. The lens module includes a holder and lens barrel. The holder is formed with an annular inner-wall therein. The annular inner-wall is formed with a receiving space. The lens barrel has a main housing which is assembled in the receiving space. The main housing of the lens barrel and the receiving space of the holder are closely fit. The holder and the lens barrel are adjusted for focusing, and the holder and the lens barrel are joined fixedly by one or more glue-parts. This invention does not need a screw thread and has no gap, so that the overall dimension of the lens module can be reduced effectively. Thus, this invention can provide a lens module with a width narrower than the conventional art.

Abstract: A NB-cam module calibration method is provided. The method includes the following steps: an image which the optical lens of each NB-cam module spotlights onto a light sensor of each NB-cam module is calibrated to generate a compensation parameter set corresponding to each NB-cam module; a color temperature table within the compiled lens-driver firmware is modified according to each compensation parameter set; and the compiled and modified lens-driver firmware is directly burned to each NB-cam module.

Abstract: A NB-cam module calibration method is provided. The method includes the following steps: an image which the optical lens of each NB-cam module spotlights onto a light sensor of each NB-cam module is calibrated to generate a compensation parameter set corresponding to each NB-cam module; a color temperature table within the compiled lens-driver firmware is modified according to each compensation parameter set; and the compiled and modified lens-driver firmware is directly burned to each NB-cam module.