PITTSBURGH, Feb. 10, 2021 (GLOBE NEWSWIRE) -- II‐VI Incorporated (Nasdaq: IIVI), a leading provider of imaging optics, today announced the introduction of its diffraction-limited apochromatic ...

A review in the June 2009 issue of *Astronomy* magazine, titled "Orion's low-cost APO delivers sharp images," evaluates the Orion EON 80mm ED Apochromatic Refractor Telescope. Apochromatic refractors ...

The article reviews the Stellarvue SV4, a 4-inch apochromatic refractor recognized for its high-quality optics and compact form factor. Central to the SV4's design is a LOMO fully multicoated ...

Diffractive and refractive lenses are widely used in X-ray analysis and high-resolution X-ray microscopy with many scientific applications in materials science, energy sciences and biology.

Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now engineers have developed a new theory that solves ...

When a single spherical lens is used with a polychromatic light source, different wavelengths do not focus to the same point, creating a colour distortion (colour fringes) within an image. This effect ...

Central sharpness is relatively soft at f/1.2, good at f/1.4 and very good at f/2. It is excellent from f/2.8 through to f/11 and still very good at f/16. The edges are soft at f/1.2 and f/1.4 and ...