Dynamic-pressure gas bearing structure and optical deflection sc

Details Dynamic-pressure gas bearing structure and optical deflection sc Dynamic-pressure gas bearing structure and optical deflection sc

1996-09-19

1998-11-10

Le, N.

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347259, 310 90, 310 905, G01D 1102

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active

058351248

ABSTRACT:
A dynamic-pressure gas bearing structure includes a sleeve, a column-like shaft fitted to the sleeve, and a plurality of shallow grooves formed on the outer peripheral surface of the shaft and extending in the axial direction of the shaft. The shallow grooves are formed by grinding in which grains are aligned to the aforementioned axial direction. An optical deflection scanning apparatus is provided with such dynamic-pressure gas bearing structure.

REFERENCES:
patent: 4552417 (1985-11-01), Yamashita et al.
patent: 5019738 (1991-05-01), Weilbach et al.
patent: 5270737 (1993-12-01), Nakasugi et al.
patent: 5289067 (1994-02-01), Tanaka et al.
patent: 5315196 (1994-05-01), Yoshida et al.
patent: 5357272 (1994-10-01), Watanabe et al.
patent: 5532729 (1996-07-01), Nakasugi

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