1 products in this product line

Fresnel lens:

Spot fresnel lens come in different sizes and can be used in a many of uses.  It is a flat on one side and the other size engraved on the circle .

Linear lenses produce a longer flat focal pattern ranging from 1 inch high by 3 inches wide up to 8 inches wide.  Less chance of damaging equipment if liquid evaporates.  Long beam can be spread the length of a pipe.  Powers a Steam Engine slower but more safely.