Q. What is happening on a car’s rearview mirror when you flip the little lever for night driving to reduce glare from cars behind you? P.H., Gurnee A. You are talking about the mechanically operated ...

Rotate and reverse images and deflect light at 90° bends. Suitable for telescopes and any optical instrument that requires the image to be flipped from the objective, turned over to the right, and ...

Right angle prisms are simply triangular blocks of glass with two 45° & one 90° angles. The precision grade right angle prisms have high surface quality and tight tolerance angles. The normal use for ...

Some materials earn their place in a space because they’re tough. Others, because they look stunning. And then there are those rare few that manage to tick both boxes—materials that not only catch the ...