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Optical Engineering • Open Access

Thermal deformation compensation in the molding of aspheric glass lenses
Author(s): Dong-kil Lee; Jun-girl Oh; Won-Gun Jang; Yang-Gyu Kim; Kwanghoon Lee; Anjin Park; Young-Soo Yang

Paper Abstract

Generally, aspheric glass lenses are manufactured using a glass molding press (GMP) method and a tungsten carbide mold core. This study analyzes the thermal deformation that occurs during the GMP process, and the results were applied to compensate an aspheric glass lens. After the compensation process, the form accuracy of aspheric glass lenses improved from ∼3.7 to ∼0.35  μm. The compensated lens complied with the actual specifications.

Paper Details

Date Published: 25 June 2014
PDF: 5 pages
Opt. Eng. 53(6) 065106 doi: 10.1117/1.OE.53.6.065106
Published in: Optical Engineering Volume 53, Issue 6
Show Author Affiliations
Dong-kil Lee, Korea Photonics Technology Institute (Republic of Korea)
Chonnam National Univ. (Republic of Korea)
Jun-girl Oh, Korea Photonics Technology Institute (Korea, Republic of)
Chonnam National Univ. (Korea, Republic of)
Won-Gun Jang, Korea Photonics Technology Institute (Korea, Republic of)
Yang-Gyu Kim, Korea Photonics Technology Institute (Korea, Republic of)
Kwanghoon Lee, Korea Photonics Technology Institute (Korea, Republic of)
Anjin Park, Korea Photonics Technology Institute (Korea, Republic of)
Young-Soo Yang, Chonnam National Univ. (Korea, Republic of)


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