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Dive into the research topics where Makoto Iwaki is active.

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Featured researches published by Makoto Iwaki.


International Conferences on Optical Fabrication and Testing and Applications of Optical Holography | 1995

Hybrid achromatic objective lens for optical data storage

Koichi Maruyama; Makoto Iwaki; Syunitirou Wakamiya; Ryota Ogawa

The two types of diffractive optical elements capable of compensating chromatic aberration in MO data storage optics have been developed. One is a diffractive element that has little optical power, and is used in cooperation with an aspherical objective lens separated from each other. The other is an aspherical singlet with a diffractive grating on its surface. Both have a diffraction efficiency of 100% for the first order diffraction.


Archive | 1995

Optical system of optical information recording/reproducing apparatus

Koichi Maruyama; Makoto Iwaki


Archive | 1989

Objective driving device for an optical disk apparatus

Hiroshi Kokado; Suguru Takishima; Koichiro Nishikawa; Junichi Takeda; Masahiko Sasaki; Isao Okuda; Hiroshi Yamamoto; Masami Ninomiya; Akihiro Tanaka; Hiroshi Motohashi; Makoto Iwaki; Wataru Kubo


Archive | 2000

Molded plastic lens

Makoto Iwaki


Archive | 1991

Objective lens system of optical information recording/reproducing apparatus

Makoto Iwaki; Koichi Maruyama


Archive | 1994

Objective lens and method of measuring its performance

Koichi Maruyama; Syunitirou Wakamiya; Makoto Iwaki; Masahiro Oono


Archive | 1995

UV image forming optical system

Koichi Maruyama; Makoto Iwaki; Syunitirou Wakamiya; Shigeo Kubota; Hiroshi Suganuma; Minoru Takeda


Archive | 1992

Collimating lens for optical system using semiconductor laser

Makoto Iwaki; Koichi Maruyama; Makoto Iki


Archive | 1992

Method and apparatus for measuring lens performance

Koichi Maruyuma; Syunitirou Wakamiya; Makoto Iwaki


Archive | 1990

Objective lens system for optical information recording and reproducing device

Makoto Iwaki; Koichi Maruyama

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