The achromatic doublet lens is used to minimize or eliminate chromatic aberration. Its achromatic design also helps to minimize spherical aberration. Compared with a single lens, an achromatic doublet ...

The ISTAR Ares WFT 150-5 R30 Anastigmatic Comet Hunter is an optical tube assembly featuring a 6-inch doublet objective lens constructed from flint and crown glass. This optical design provides a 30 ...

Knight Optical UK Ltd - a global leader in precision optical and opto-mechanical components, are able to supply high quality singlet and doublet lenses at your required wavebands i.e. for the ...

Figure 1 (a) Structure of the mesoscopic objective, (b) Aberration distribution of the mesoscopic objective, (c) Wide-field imaging system built with the mesoscopic objective, (d) Laser point-scanning ...

Researchers developed a new way to apply anti-reflective coatings to 3D-printed multi-lens systems such as the doublet objective pictured here, which is just 600 microns in diameter. These coatings ...

An estimated 150,000 people in the U.S. who are not truly blind have to be treated as if they were, because they have so little useful vision that ordinary spectacles yield them only a faint, blurred ...

Not an aberration: schematic drawing of the metalens (left), which is made of tiny titanium waveguides. The drawing on the right is of a single waveguide. (Courtesy Boubacar Kanté) A new type of ...

A specialised lens with high spherical aberration for selective focus photography.Designed for interchangeable-lens SLR cameras, Lensbaby lenses are suite of replacement lenses that combine a simple ...