Zobrazeno 1 - 10 of 35 pro vyhledávání: '"Masahiko FUKUTA"'
1
Slurry Conditions for Reaction-Induced Slurry-Assisted Grinding of Optical Glass Lens
Autor: Tappei Kawasato, Hinata Takamaru, Kazuhisa Hamazono, Masahiko Fukuta, Katsutoshi Tanaka, Yusuke Chiba, Mikinori Nagano, Hidebumi Kato, Yasuhiro Kakinuma
Publikováno v: International Journal of Automation Technology. 17:40-46
The demand for optical glass lenses is rising owing to the increase in image resolution. Optical glass is a hard and brittle material. Thus, an efficient and precise grinding method is required for optical glass to improve lens quality and productivi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::83d8ec0b5f486ed928633f620d9e54fb
https://doi.org/10.20965/ijat.2023.p0040
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5
Influence of servo characteristics on crack generation in ultra-precision grinding of optical glass lenses
Autor: Takumi Suetomi, Masahiko Fukuta, Katsutoshi Tanaka, Yasuhiro Kakinuma
Publikováno v: Procedia CIRP. 77:130-133
Generally, manufacturing process of optical glass lenses, which are used for single lens reflex cameras, is classified into grinding and polishing for removing cracks generated by grinding. Thus, it is desired not to generate the cracks in grinding a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76143b1d676ec3adde5bfa908c76acd7
https://doi.org/10.1016/j.procir.2018.08.248
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6
Basic Study on Ductile-Mode Grinding of Optical Glass Lenses with Rubber Bonded Diamond Wheels
Autor: Rei Sekiguchi, Yasuhiro Kakinuma, Katsutoshi Tanaka, Yuya Kawana, Masahiko Fukuta, Yuta Mizumoto
Publikováno v: Materials Science Forum. 874:241-246
Large aperture lenses with high surface quality are demanded for professional imaging products such as single-lens reflex cameras and astronomical telescopes. Large aperture optical lenses are shaped by ultra-precision grinding and finished by prolon
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd4c857e03c81f48f15b376505b8fa1e
https://doi.org/10.4028/www.scientific.net/msf.874.241
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7
Wet-Etching Evaluation Method of Subsurface Damage after Grinding of Glass
Autor: Masahiko Fukuta, Shun Yoshikawa, Norihisa Miki, Kazuhiko Higashi, Yasuhiro Kakinuma, Katsutoshi Tanaka, Rei Sekiguchi
Publikováno v: Advanced Materials Research. 1136:503-508
Large-aperture lens used for single-lens reflex cameras is generally produced by both ultra-precision grinding and polishing because a mass-produced lens by molding process can hardly achieve the required form accuracy and surface quality. Recently,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::722183bc2c82e205b664e7f02d6c002e
https://doi.org/10.4028/www.scientific.net/amr.1136.503
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8
Basic Study on High Efficiency Ultra-Precision Grinding of the Optical Glass Lens
Autor: Rei Sekiguchi, Shun Yoshikawa, Masahiko Fukuta, Katsutoshi Tanaka, Yasuhiro Kakinuma
Publikováno v: Advanced Materials Research. 1017:21-26
The demand for large aperture lenses with high surface quality and form accuracy used for single-lens reflex cameras has been increasing. Generally, large aperture glass lenses are produced by ultra-precision grinding. Considering the increasing glob
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d862a1edf29d7c7d609fdd84b4323a0
https://doi.org/10.4028/www.scientific.net/amr.1017.21
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10
The study about forming high-precision optical lens minimalized sinuous error structures for designed surface
Autor: Masahide Katsuki, Takeshi Momochi, Yoshihiro Yamamoto, Masahiko Fukuta, Yu Katahira
Publikováno v: SPIE Proceedings.
Recently, it has been required to improve qualities of aspherical lenses mounted on camera units. Optical lenses in highvolume production generally are applied with molding process using cemented carbide or Ni-P coated steel, which can be selected fr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73a95d47f45e2432e9e6ea9f5b775b15
https://doi.org/10.1117/12.2237436
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