At this stage we have all equations ready for analysis of chromatic effects in the GRIN lens.
To understand the origin of chromatic effects in the GRIN lens and the corresponding aberrations arising from the spatial change of dispersion within the lens, one should consider the chromatic contribution of different layers in the GRIN structure.
Figure 1 displays a selection of swatches from one of the historical handbooks under investigation, where pigments have been arranged by the manufacturers in order to bring out their color and emphasize the chromatic effect obtainable by their juxtaposition.
But David himself, as his works show, was not always hostile to rich chromatic effects; as late as 1860 he could be called, by no less a colourist than Eugène Delacroix, "the father of the whole modern school".
In general, silver was, and still is, used in jewelry for economic reasons or to obtain chromatic effects.
The resulting arc optics is further optimized with a sextupole correction to suppress chromatic effects contributing to the emittance dilution.
There's no holding back when the big guns come out - vast scoring creates huge chromatic effects, simultaneously throwing up several conflicting melodies.
(18) and (20) we can calculate the chromatic effects arising from a typical GRIN lens.
Similarly, faced by a 'divided' painting, it is best to first stand at a sufficient distance in order to absorb the whole, before moving closer to study the chromatic effects up close".
The significance of the constancy of the quantity (n d − 1)/(n dV d) is that the GRIN structure is free from both chromatic effects (axial and lateral color) and only the external surfaces of the lens contribute to the chromatic aberrations.
The dichroic glass panes, which we've also seen in the work of light painter Stephen Knapp, reflect light from the surface to achieve a vivid chromatic effect distinct from glass colored by pigment.
