10X18mm  jewelry  pocket  Magnifier

Specification: 

Triplet magnifying glasses have a special lens design: 3 individual lenses are combined. This technology was developed to correct aberrations. Each of the 3 lenses has 2 radii and the distances between the lenses differ. Colour length correction (achromatic correction) and edge blur (aplanatic correction) can be largely compensated for with this design.

An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus in the same plane.

Triplet loupe;
Round shape;
Achromatic aberration;

Chromatic aberration:10X;
Diameter:18mm;
White chromized metal;
Leather package.
Easy to take