Fujifilm Corporation

Kouei Fujiki

Ryota Sasaki

Provided are a lens barrel part and a method of producing 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 partwhich are in contact with the lenses are ground in the water by a polishing tool, with the result that in those regions of surfaces in contact with the lenses where fine projections exist, protection film portionsconsisting of hydrates or oxides are created due to the generation of tribochemical reactions, and that in those regions of surfaces in contact with the lenses which are other than the regions where fine projections are present, there exist porous portionswhere no tribochemical reaction occurs and where a porous state remains.

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Saitama, Japan

Kouei Fujiki