The double convex lens/mirror is symmetrical across both its horizontal and vertical axis. Each of the lens's two faces can be thought of as originally being part of a sphere. The fact that a double ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. The invention that set the stage for the telescope was the ...

Astronomy. What’s the first thing you think of when you read that word? The many beautiful vistas returned from Hubble? A family in a backyard huddled around a small telescope? Giant research ...

Optics is a fully integrated optical manufacturing center. We provide our customers optics (lens)products with superior quality at competitive prices.Our products include Plano-convex lens,Biconvex ...