Title:
LENS BARREL PART, LENS ASSEMBLY, IMAGING DEVICE, AND LENS BARREL PART MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/148762
Kind Code:
A1
Abstract:
Provided are a lens barrel part and a method of manufacturing the same, such that the generation of grinding debris due to friction with lenses is suppressed while maintaining the air permeability of porous ceramics. Those areas of a lens barrel part (1) which are in contact with the lenses are ground in the water by means of a grinding tool (25), with the result that in those regions of surfaces in contact with the lenses where minute protrusions exist, protective film portions (29) consisting of hydrates or oxides are created due to the generation of tribo-chemical reactions, and that in those regions of surfaces in contact with the lenses which are other than the regions where minute protrusions are present, there exist porous portions (30) where no tribo-chemical reaction occurs and where a porous state remains.
Inventors:
FUJIKI Kouei (1-324 Uetake-cho, Kita-ku, Saitama-sh, Saitama 24, 〒3319624, JP)
藤木 弘栄 (〒24 埼玉県さいたま市北区植竹町１丁目３２４番地 富士フイルム株式会社内 Saitama, 〒3319624, JP)
藤木 弘栄 (〒24 埼玉県さいたま市北区植竹町１丁目３２４番地 富士フイルム株式会社内 Saitama, 〒3319624, JP)
Application Number:
JP2011/060517
Publication Date:
December 01, 2011
Filing Date:
May 02, 2011
Export Citation:
Assignee:
FUJIFILM Corporation (26-30, Nishiazabu 2-chome Minato-k, Tokyo 31, 〒1060031, JP)
富士フイルム株式会社 (〒31 東京都港区西麻布２丁目２６番３０号 Tokyo, 〒1060031, JP)
FUJIKI Kouei (1-324 Uetake-cho, Kita-ku, Saitama-sh, Saitama 24, 〒3319624, JP)
富士フイルム株式会社 (〒31 東京都港区西麻布２丁目２６番３０号 Tokyo, 〒1060031, JP)
FUJIKI Kouei (1-324 Uetake-cho, Kita-ku, Saitama-sh, Saitama 24, 〒3319624, JP)
International Classes:
B24B5/50; G02B7/02; H04N5/225
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (Hayakawa-tonakai Bldg. 3F, 12-5 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
Claims:
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