Abstract

The refractive indices of silicate, germanate, calcium aluminate, and tellurite glasses have been determined in the wavelength range from about 0.4 μ to 5.3 μ. The experimental data for the silicate and germanate glasses were fitted to a Sellmeier dispersion equation of the form n2 = 1 + ∑Ajλ2/(λ2 − λj2). Dispersive curves were plotted which indicate the expected dispersion, contribution to chromatic aberration, and resolution of the glasses as a function of wavelength.

© 1963 Optical Society of America

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