Dynamic-pressure gas bearing structure and optical deflection scanning apparatus
US5835124A · kind A · utility
19Cited by
7References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 19, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Sep 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/121
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.