Neutralizing Lens Set Consists of a biconcave and biconvex lens, both 38mm in diameter. When used together, they neutralizes each other, the resulting effect being that of a plane glass. The name comes from the fact that the sides are shaped like segments of a cylinder. These special lens are used to focus light along a straight line. Rather than direct light through the wide side, it is directed from the edge.
Great experiments result from using with one of our laser lights.
All are made of optical glass and highly polished. They are 50mm x 45mm in size and have a 143mm focal length - 7 power.