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Featured researches published by Ikuya Kikuchi.


Japanese Journal of Applied Physics | 2001

High-Numerical-Aperture Objective Lens for Blue Laser Disk System

Makoto Sato; Toshiharu Ezuka; Katsuhiro Koike; Noriaki Murao; Ikuya Kikuchi; Takanori Maeda

The authors have developed and prototyped an adjustment-free two-component objective lens for a blue laser disk system (numerical aperture = 0.85, disk thickness = 0.1 mm). The lens is designed to be sufficiently tolerant to the relative position, i.e., the decentering, tilt and spacing inaccuracy between the two lenses, and does not require adjustment of the two lenses. We have carried out some experiments and the tolerance of our newly developed objective lens has been experimentally verified.


Archive | 2001

Optical pickup apparatus and focusing control method

Masakazu Ogasawara; Ikuya Kikuchi


Archive | 2000

Aberration correcting apparatus and optical apparatus using the same

Takanori Maeda; Ikuya Kikuchi


Archive | 2001

Optical multi-layer information recordating medium

Takanori Maeda; Ikuya Kikuchi; Makoto Sato; Katsuhiro Koike; Yoshitsugu Araki


Archive | 2001

Optical pickup apparatus and information recording and/or reproducing apparatus

Ikuya Kikuchi; Takanori Maeda; Mitsuru Sato


Archive | 2004

Optical pickup, and method and apparatus for correcting aberration of optical beam

Ikuya Kikuchi; Sakashi Ohtaki


Archive | 2011

Optical element, head-up display and light source unit

Takayuki Nomoto; Ikuya Kikuchi


Archive | 1999

Aberration correcting device and optical pickup apparatus using the same

Takanori Maeda; Ikuya Kikuchi


Archive | 1999

Optical pickup information reproducing apparatus and information recording apparatus

Sakashi Ohtaki; Ikuya Kikuchi


Archive | 2000

Optical pickup and information recording and/or reproducing apparatus including the same

Ikuya Kikuchi; Takanori Maeda; Mitsuru Sato; Masayuki Iwasaki

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Makoto Sato

Nagaoka University of Technology

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