Takeharu Okuno
Canon Inc.
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Publication
Featured researches published by Takeharu Okuno.
International Optical Design Conference and Optical Fabrication and Testing (2010), paper IMA2 | 2010
Takeharu Okuno
Canon Inc. released the new EF 24mm f/1.4L II USM lens with a subwavelength structure coating (SWC), a new type of high performance anti-reflective coating, in December 2008. The subwavelength structure, which is made from microcrystalline alumina, can be formed on large, curved surfaces using a simple sol-gel process. Furthermore, by inserting a thin-film layer with an intermediate refractive index between the lens and the microcrystalline alumina, it is possible to achieve superior anti-reflection performance matching various lens refractive indexes. This report presents the principles and performance of SWC and describes the application of SWC to imaging lenses.
Archive | 2004
Takeharu Okuno
Archive | 2009
Kazuhiko Momoki; Takeharu Okuno; Daisuke Sano; 大介 佐野; 丈晴 奥野; 和彦 桃木
Archive | 2010
Takeharu Okuno
Archive | 2008
Sayoko Amano; Takeharu Okuno; Daisuke Sano; Fumiaki Usui; 大介 佐野; 佐代子 天野; 丈晴 奥野; 文昭 臼井
Archive | 2001
Takeharu Okuno
Archive | 2015
Takeharu Okuno; Rie Ishimatsu
Archive | 2009
Kazue Uchida; Takeharu Okuno; Daisuke Sano
Archive | 2013
理絵 石松; Rie Ishimatsu; 奥野 丈晴; Takeharu Okuno; 丈晴 奥野
Archive | 2012
Takeharu Okuno
