This is an example of how the liquid lens works in action in the DataMan 8000 handheld barcode reader. You see that we're able to read a 1-D barcode right up close, at about 10-15 inches away, and then read a large 1-D linear code on the wall about 6-8 feet away. The liquid lens is able to change its focal distance from up close to a far focal distance without any special adjustment by the user.