Optical sapphire round window

Optical sapphire round window   The window is a parallel plane plate, usually used as a protective film for electronic sensors or external environment detectors. When choosing a window, the

Optical sapphire Square window

Optical Ruby round window

Optical Ruby Square window

Concave convex lens

Concave convex lens It is a thicker lens in the center. Convex lenses are divided into biconvex, plano-convex, and concave-convex (or positive meniscus) forms. The thin convex lens has a converging e