Patent ID: 7015968

Claim:
A backlight controlled closeup photographing system for use with an information platfom, having a photographing function for capturing digital image of an object; the backlight controlled closeup photographing system comprising: a main control unit; an imaging module, which is capable of capturing the object's optical image and converting the captured optical image into a digital image; a display unit, which is controlled by a display driver under control by the main control unit for displaying the digital image of the object captured by the imaging module; and a backlighting module, which is coupled to the display unit and controlled by a backlighting control unit under control by the main control unit for providing a backlight source to illuminate the object being photographed; wherein when photographing the object in closeup mode, the main control unit commands the display driver to switch off the display unit and then commands the backlighting control unit to switch on the backlighting module and adjust the frequency of the output backlight from the backlighting module for the purpose of increasing the intensity of the backlight illumination on the object being photographed.