10 August 1998 Simple and easy automation test and measurement method of large-size optical glass homogeneity
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Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998); doi: 10.1117/12.318433
Event: Photonics China '98, 1998, Beijing, China
Abstract
The relation between the optical nonhomogeneity and the birefringences of the edge stress and the end stress is given under the condition of ideal linear anneal in this paper. The optical nonhomogeneity of 4 glass samples with diameter 565mm and thickness 75mm for OIIC and K508 has been measured, which agrees very well with the calculation results of the calculation method given in this paper. the calculation result precision can reach 1 by 10-6. The complex measurement processes of various interferences measurement methods for optical homogeneity can be omitted. The optical homogeneity calculation method of the large size glass based on simple measurement is given under its linear anneal in this paper, which not only have practical, but also can be widely spread.
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Wenku Yang, Yujing Yang, Tao Yang, Wenrong Deng, "Simple and easy automation test and measurement method of large-size optical glass homogeneity", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); doi: 10.1117/12.318433; https://doi.org/10.1117/12.318433
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KEYWORDS
Glasses

Optical components

Optical testing

Annealing

Geometrical optics

Image quality

Birefringence

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