Radial GRIN material for photographic lenses made by the  sol-gel process

Masayuki Yamane; Hisashi Koike; Yuko Kurasawa; Satoshi Noda

doi:10.1117/12.188990

13 October 1994 Radial GRIN material for photographic lenses made by the sol-gel process

Masayuki Yamane, Hisashi Koike, Yuko Kurasawa, Satoshi Noda

Proceedings Volume 2288, Sol-Gel Optics III; (1994) https://doi.org/10.1117/12.188990
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

A r-GRIN rod of PbO-K₂O-B₂O₃-SiO₂ system having an effective diameter of about 13 mm and a smooth and refractive index change of 0.095 was prepared by a sol-gel process. The introduction of acetic acid in a bath for the formation of compositional gradient in a gel was effective to hinder the migration of lead ions during fixing of the formed profile. The performance of the r-GRIN rod was confirmed to be satisfactory for the practical application by the test on a compact camera.

Citation Download Citation

Masayuki Yamane, Hisashi Koike, Yuko Kurasawa, and Satoshi Noda "Radial GRIN material for photographic lenses made by the sol-gel process", Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); https://doi.org/10.1117/12.188990

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