Luminance meters are single element detectors that measure photometric brightness. The Konica Minolta luminance meter measures the amount of emitted or reflected light from a surface. These instruments display luminance in either cd/m2 or foot-lambert (ft-L) and they are lightweight, compact and portable. They can be connected to a PC which can store the measurement data and control the device. The LS-160 has a single lens reflex optical system to precisely measure very small (0.4mm) diameters at very short distances, making it extremely easy to use.