sharpen up the images they overcome this operation limit in penetrate from the original limit of say a hundred microns to about a millimeter by the way 100 microns is roughly the diameter of our hair that's how small it is a millimeter you can picture if you have a little ruler you can picture a millimeter right so a millimeter doesn't sound very big but it's a huge advancement from 0.1 millimeters so 100 microns is 1/10 of a millimeter so that's a factor of 10 enhancement in terms of penetration right though those technologies have