Composite calibration plate

A composite calibration plate, configured for calibrating a lighting device and an imaging device disposed inside a fluorescent detection device, the lighting device including a plurality of built-in light sources arranged in a light-source array, the composite calibration plate being disposed on an optical imaging path of the imaging device, comprising:

• a control board, having oppositely a first setting surface and a second setting surface;
• a photo-detect board, stacked on the first setting surface, connected electrically with the control board;
• a diffusion board, stacked on the photo-detect board by being away from the control board;
• a light-emitting sheet, stacked on the second setting surface, connected electrically with the control board, including a plurality of self-luminous sources arranged in the light-source array, configured for being controlled by the control board to project a plurality of self-luminous light beams;
• and
• a fluorescent sheet, selectively stacked on the light-emitting sheet by being away from the control board or the diffusion board, furnished with a plurality of fluorescent chips disposed according to the light-source array, configured for projecting a plurality of fluorescent light beams while being irradiated by the plurality of self-luminous light beams.