There is a different spherochromatism after the two systems correct secondary spectrum,spherical aberration and comatic aberration.

Annular lens design for reducing spherical aberration;

A study of the spherical aberration of refracted image on the rotational ellipsoid;

Compare the spherical aberration of refracted image of the rotational hyperboloid and the spherical surface;

A direct observation of a magnetic reconnecting and the chromosphere evaporating processes occurred in the flare of AR7186 of 1992 June 4, and observed by both the Soft X -ray Telescope (SXT) aboard the Yohkoh spacecraft and the Solar Flare Telescope (SFT, NAOJ, Mitaka), are reported in this article.

Model of color difference-absorbance in dyeing process;

Minimizing the color difference between trial and bulk samples of silk-like fabric;

Factors causing color difference and its control during orange-peel lacquer painting;