STRUCTURE OF CAMERA MODULE FOR LOW ILLUMINANCE

摘要

A camera module structure for low illuminance is provided to reflect light in an IR area, which is cut off through an IR cut-off filter, through a refraction-type mirror and receive and process the reflected light in a second image sensor, thereby processing a subject image in a low illuminance environment to form the subject image. A camera module structure for low illuminance includes a lens unit(10), an IR(Infrared Ray) cut-off filter(20), a first image sensor(30), and an image processing module(50). The lens unit refracts light inputted from an external subject to form a focus. The IR cut-off filter cuts off light in an IR area out of incident light. The first image sensor converts the light of the subject incident through the lens unit into an electric image signal. The image processing module is connected to the first image sensor to form a subject image on a screen. The IR cut-off filter is slopedly installed at a predetermined inclination between the lens unit and the first image sensor on a holder for mounting the lens unit and the first image sensor. A refraction-type mirror(40) refracts the light in the IR area once more which is cut off and reflected, and leaked through the IR cut-off filter. A second image sensor(30') receives the reflected light in the IR area to form the subject image.