Residual stresses and refractive index of molded glass lenses are important quality indicators of their optical performance. In this research, the control of residual stresses and refractive index variation of molded glass lenses were experimentally investigated by postmolding annealing. Residual stresses were quantitatively measured using a circular polariscope. Refractive index was reconstructed and calculated by an optical setup based on Mach–Zehnder interferometer. In addition, geometry of the aspherical surface of lens was also evaluated before and after annealing. The comparison between the measured results before and after annealing showed that residual stresses and refractive index variation were well controlled and the shape of the aspherical surface was largely retained. This comprehensive experimental study demonstrated a suggestion to improve quality of the compression molded glass lens by postmolding annealing for high-precision optical applications.
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February 2014
Research-Article
Annealing of Compression Molded Aspherical Glass Lenses
Bo Tao,
Bo Tao
Department of Precision Machinery and Precision Instrumentation,
University of Science and Technology of China
,Hefei, Anhui 230026
, China
Department of Integrated Systems Engineering,
The Ohio State University
,210 Baker Systems Engineering
,1971 Neil Avenue
,Columbus, OH 43210
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Peng He,
Peng He
Department of Integrated Systems Engineering,
The Ohio State University
,210 Baker Systems Engineering
,1971 Neil Avenue
,Columbus, OH 43210
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Lianguan Shen,
Lianguan Shen
Department of Precision Machinery and Precision Instrumentation,
University of Science and Technology of China
,Hefei, Anhui 230026
, China
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Allen Yi
Allen Yi
1
Department of Integrated Systems Engineering,
e-mail: yi.71@osu.edu
The Ohio State University
,210 Baker Systems Engineering
,1971 Neil Avenue
,Columbus, OH 43210
e-mail: yi.71@osu.edu
1Corresponding author.
Search for other works by this author on:
Bo Tao
Department of Precision Machinery and Precision Instrumentation,
University of Science and Technology of China
,Hefei, Anhui 230026
, China
Department of Integrated Systems Engineering,
The Ohio State University
,210 Baker Systems Engineering
,1971 Neil Avenue
,Columbus, OH 43210
Peng He
Department of Integrated Systems Engineering,
The Ohio State University
,210 Baker Systems Engineering
,1971 Neil Avenue
,Columbus, OH 43210
Lianguan Shen
Department of Precision Machinery and Precision Instrumentation,
University of Science and Technology of China
,Hefei, Anhui 230026
, China
Allen Yi
Department of Integrated Systems Engineering,
e-mail: yi.71@osu.edu
The Ohio State University
,210 Baker Systems Engineering
,1971 Neil Avenue
,Columbus, OH 43210
e-mail: yi.71@osu.edu
1Corresponding author.
Manuscript received January 3, 2013; final manuscript received June 19, 2013; published online November 5, 2013. Assoc. Editor: Jack Zhou.
J. Manuf. Sci. Eng. Feb 2014, 136(1): 011008 (8 pages)
Published Online: November 5, 2013
Article history
Received:
January 3, 2013
Revision Received:
June 19, 2013
Citation
Tao, B., He, P., Shen, L., and Yi, A. (November 5, 2013). "Annealing of Compression Molded Aspherical Glass Lenses." ASME. J. Manuf. Sci. Eng. February 2014; 136(1): 011008. https://doi.org/10.1115/1.4025395
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