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Precise description of dispersion of optical glass refractive exponent

Authors: Verenikina N.M., Gorelov A.M., Rozhkov O.V. Published: 24.01.2015
Published in issue: #3(40)/2000  
DOI:

 
Category: Optics  
Keywords:

Preliminary investigation is carried out and a problem is set concerning practical expediency and possibility to describe the optical glass refractive exponent dispersion with quasi-absolute accuracy (±10-6). This accuracy is slightly worse than a limiting accessible optical homogeneity of a specific blank part (±5 • 10-7) that can be reached with up-to-date precision annealing procedure. Practical results are obtained only for three types of optical glass "TK21", "CNR3", and "ОФ4".