High index glass and devices incorporating such

According to at least one embodiment a glass comprises: a refractive index N of greater than 1.65 at a wavelength λ, where λ=587.6 nm; a glass density of not more than 4.2 g/cm3; Abbe number Vd greater than 30; the glass comprising greater than 0.03 wt % of rare earth oxide with an atomic number of...

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