Application of anti-reflection structures on curved surfaces

Kazuya Yamamoto; Takeshi Yamamoto; Toshimitsu Takaoka; Masafumi Seigo; Seiichiro Kitagawa

doi:10.1117/12.906640

28 February 2012 Application of anti-reflection structures on curved surfaces

Kazuya Yamamoto, Takeshi Yamamoto, Toshimitsu Takaoka, Masafumi Seigo, Seiichiro Kitagawa

Proceedings Volume 8255, Physics and Simulation of Optoelectronic Devices XX; 82551R (2012) https://doi.org/10.1117/12.906640
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

Kazuya Yamamoto, Takeshi Yamamoto, Toshimitsu Takaoka, Masafumi Seigo, and Seiichiro Kitagawa "Application of anti-reflection structures on curved surfaces", Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82551R (28 February 2012); https://doi.org/10.1117/12.906640

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