| 摘要 |
The invention relates to an optical detection device that minimizes transformation and maintains smoothness by spraying compressed air from above a detection sheet to guarantee a more accurate detection in the process of obtaining an image of the detection sheet made of pliable material, and the optical detection device comprises a detection loading platform made of light-transmitting material for loading the detection sheet; a fixation unit formed on the detection loading platform to fix the detection sheet; a fixation frame that supports the lateral side or lower surface of the detection loading platform; a backlight unit that irradiates light to the detection sheet on the detection loading platform from below the detection loading platform; a shooting unit that is set above the detection loading platform to obtain an image of the detection sheet loaded on the detection loading platform; and a gas injection part that injects compressed gas to the detection sheet from above and below the shooting unit to make the detection sheet stick to the detection loading platform tightly. |
