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Proceedings Paper

Reluctant glass formers and their applications in lens design
Author(s): R. Barry Johnson; Chen Feng; Edwin C. Ethridge
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Paper Abstract

Recently, a group of glasses has been investigated that have high refractive index and low dispersion. These glasses are known as reluctant glass formers and lie in the 'forbidden' region of the conventional glass map. Research is continuing to develop means and techniques to produce usable sizes and optical characteristics. Since these glasses have unusual optical properties, a study was performed to gain an understanding of the impact such glasses could have on optical design and to establish desired baseline optical properties as objectives for the material scientists. Several generic optical configurations were explored to determine if a meaningful improvement could be realized. Study results are presented and discussed to illustrate that a notable enhancement in optical performance is attainable.

Paper Details

Date Published: 1 December 1991
PDF: 17 pages
Proc. SPIE 1527, Current Developments in Optical Design and Optical Engineering, (1 December 1991); doi: 10.1117/12.48639
Show Author Affiliations
R. Barry Johnson, Univ. of Alabama in Huntsville (United States)
Chen Feng, Univ. of Alabama in Huntsville (United States)
Edwin C. Ethridge, NASA/Marshall Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 1527:
Current Developments in Optical Design and Optical Engineering
Robert E. Fischer; Warren J. Smith, Editor(s)

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