An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better correction of chromatic and spherical aberration than the much...

semi-apochromat objectives deal with color better than achromatic objectives. To reduce aberration even further, more complex designs such as apochromat and...

be further increased, as seen in an apochromatic lens or apochromat. "Achromat" and "apochromat" refer to the type of correction (2 or 3 wavelengths correctly...

was an important step in the development of the optical microscope. An apochromat is a lens or lens system with even better chromatic aberration correction...

to make and sell achromatic doublets. Dollond's son Peter invented the apochromat, an improvement on the achromat, in 1763. Several different types of achromat...

fluorite glasses and to very tight tolerances. Photographic lens Achromat Apochromat Herzberger, M., and N. McClure, The design of superachromatic lenses,...

a combination of two or three aperture sized lenses (see achromat and apochromat for more details). The cost of such systems therefore scales significantly...

Dobsonian telescopes in 2000, followed by Maksutov–Cassegrains in 2001, and Apochromat ED-APO refracting telescopes in 2004. Sky-Watcher sells telescopes from...

accumulation on the lungs Apo (drink), an alcoholic beverage of Northeast India Apochromat, a type of photographic or other lens Apoprotein (disambiguation), a protein...

achromatic, achromatism, achromatopsia, achromatopsic, amphichroic, apochromat, auxochrome, chroma, chromatic, chromatid, chromatophore, chrome, chromium...