Journal of Inorganic Materials

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Adaptability of Glass Properties Estimating Model for GRIN Optic Elements

HAO Yin-Lei   

  1. Changchun Institute of Optics; Fine Mechanics and Physics; CAS Changchun 130022; China
  • Received:2002-02-04 Revised:2002-04-08 Published:2003-03-20 Online:2003-03-20

Abstract: Glass properties estimating models based on uniform and stress free glasses encounter certain
discrepancy from measured value when being used for refractive index change (ΔN) estimation in gradient index (GRIN) optic element
prepared by ion exchange. A comparison was made between HSD model and Gan Fuxi model in this paper. Result shows that Gan Fuxi model generates
relatively low aberration when being used to calculate in lightly stressed GRIN optic element, but becomes invalid in heavily stressed GRIN optic
element; While HSD model is much more adaptive on estimating in heavily stressed GRIN optic element, for involving polarizability factor and volume
factor of glass composition separately.

Key words: gradient index, ion exchanging, glass, model

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