Some polymers are able to emit light when properly excited with the proper voltage (generally quite a high voltage is required. This polymer is directly contacting a CMOS camera, which is necessarily the size of the finger. Generally, the finger acts as the ground, and the polymer emits light where the ridges touch.
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Hello, I am an Electronics and Embedded system developer. I have experience in Digital and Analog electronic design and Matlab.i have expertise in PCB design. Kindly check my profile. Reply me back and will discuss the Plus
Just to say that I am a PhD in electronics with 15+ years experience in industry and research. I have worked for several US companies on their new product plans. I have done lecturing and teach assisting for several y Plus