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Proceedings Paper

Radial GRIN material for photographic lenses made by the sol-gel process
Author(s): Masayuki Yamane; Hisashi Koike; Yuko Kurasawa; Satoshi Noda
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Paper 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.

Paper Details

Date Published: 13 October 1994
PDF: 8 pages
Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); doi: 10.1117/12.188990
Show Author Affiliations
Masayuki Yamane, Tokyo Institute of Technology (Japan)
Hisashi Koike, Olympus Optical Co., Ltd. (Japan)
Yuko Kurasawa, Olympus Optical Co., Ltd. (Japan)
Satoshi Noda, Olympus Optical Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 2288:
Sol-Gel Optics III
John D. Mackenzie, Editor(s)

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