My July column (“Calibrate camera coordinates and colors”) described techniques you can use to calibrate vision systems. In some cases, though, basic calibrations do not suffice. General-purpose ...

OpTest systems are made up of custom optics, mechanics and electronics designed by Optikos engineers for advanced lens testing. Although other products on the market typically compromise by ...

Menlo Park, CA - Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par ...