Abstract

Towards the end of 1995, after developing the large scale AGRIN glass known as GRADIUM^™, I came across an interesting cemented doublet design consisting of two individual AGRIN glass families. The positive element is composed of a family of glass with a negative slope on the glass map. The negative element is composed of the flint and short flint glasses on the map. This bi-AGRIN cemented doublet has virtually zero axial color, zero spherical aberration and zero sphero-chromatism at the F, d, C wavelengths.

© 2014 Optical Society of America