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Proceedings Paper

Application of anti-reflection structures on curved surfaces
Author(s): Kazuya Yamamoto; Takeshi Yamamoto; Toshimitsu Takaoka; Masafumi Seigo; Seiichiro Kitagawa
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Paper Abstract

Conventional lens manufacturing is accomplished by injection molding followed by application of a thin film anti-reflection coating. This requires several production steps, each with the associated constraints. Here we report a technique for production of injection molded lenses with conical sub-wavelength grating anti-reflection structures. While similar structures have been made in the past, our technique allows the sub-wavelength structure to be created on curved surfaces during the injection molding process, reducing the number of steps in the manufacturing process. The advantage of this new technology is that anti-reflection function is created without any additional process(es) conventionally required but by a single injection molding process to make lens normally, through which substantial cost saving will be achieved.

Paper Details

Date Published: 28 February 2012
PDF: 10 pages
Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82551R (28 February 2012); doi: 10.1117/12.906640
Show Author Affiliations
Kazuya Yamamoto, Nalux Co., Ltd. (Japan)
Takeshi Yamamoto, Nalux Co., Ltd. (Japan)
Toshimitsu Takaoka, Nalux Co., Ltd. (Japan)
Masafumi Seigo, Nalux Co., Ltd. (Japan)
Seiichiro Kitagawa, Nalux Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 8255:
Physics and Simulation of Optoelectronic Devices XX
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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