Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Shigeru Takushima"'
Autor:
Yasuhiro Takaya, Yasuhiro Mizutani, Nobuhiro Shinohara, Morita Daiji, Shigeru Takushima, Hiroyuki Kawano
Publikováno v:
International Journal of Automation Technology. 15:715-727
We propose the use of the line section method with crossed line beams for the process control of laser wire deposition. This method could be used to measure the height displacement in front of a laser spot when the processing direction changes. In la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8288447aad67e5baa451df02bb7ed0b2
https://doi.org/10.20965/ijat.2021.p0715
https://doi.org/10.20965/ijat.2021.p0715
Autor:
Yasuhiro Takaya, Morita Daiji, Hiroyuki Kawano, Nobuhiro Shinohara, Shigeru Takushima, Yasuhiro Mizutani
Publikováno v:
Precision Engineering. 62:23-29
We propose an in-process height measurement system for a weld bead and feedback control system for wire-feeding speed for high-quality laser deposition. Metal additive manufacturing, especially laser metal-wire deposition, is effective for complex sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e12e3b88fe6303e9bd820f308d546689
https://doi.org/10.1016/j.precisioneng.2019.11.007
https://doi.org/10.1016/j.precisioneng.2019.11.007
Publikováno v:
Optical Engineering. 60
A compound eye optical system design allows us to construct a compact image scanner with a large field of view and a large depth of field, both of which are beneficial for use in a copier’s flatbed scanner. Our prototypes are constructed of 32 or 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e04f78d1f1db05e72b2dc45ce6c3881a
https://doi.org/10.1117/1.oe.60.4.043103
https://doi.org/10.1117/1.oe.60.4.043103
Publikováno v:
Precision Engineering. 51:437-444
We propose a multi-directional triangulation optical system and scanning exposure method for precise height displacement measurement of metal-works. It is difficult to measure metal surfaces precisely with a conventional triangulation-laser displacem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caba5e7a6172fd2aa09370eed1da8eff
https://doi.org/10.1016/j.precisioneng.2017.09.015
https://doi.org/10.1016/j.precisioneng.2017.09.015
Autor:
Satoshi Yamanaka, Hajime Nakajima, Tetsuo Funakura, Kosaku Yamagata, Hiroyuki Kawano, Tatsuya Kunieda, Tatsuki Okamoto, Taku Matsuzawa, Tadashi Minobe, Yoshitaka Toyoda, Shigeru Takushima
Publikováno v:
Optics Express. 22:18010
We designed a new image scanner using the reflective optics of a compound eye system that can easily assemble plural imaging optical units (called imaging cells) and is compact with a large depth of field (DOF). Our image scanner is constructed from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee71770a11ada767bdf2bf393fddc61e
https://doi.org/10.1364/oe.22.018010
https://doi.org/10.1364/oe.22.018010
Publikováno v:
Japanese Journal of Applied Physics. 48:030206
A phase-shifted grating coupler (GC) is proposed and designed to obtain a two-dimensional spot array. A GaInP red distributed Bragg reflector laser integrated with the phase-shifted GC for multispot focusing is designed and fabricated. A 3 ×3 spot a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6b3ce6fcb78887ae742c7079506e442
https://doi.org/10.1143/jjap.48.030206
https://doi.org/10.1143/jjap.48.030206