Hydrodynamic bearing unit, and optical deflector, optical...

Details Hydrodynamic bearing unit, and optical deflector, optical... Hydrodynamic bearing unit, and optical deflector, optical...

2008-04-21

2010-10-12

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

07813020

ABSTRACT:
A hydrodynamic bearing unit using oil includes a shaft to be driven, a bearing member configured to support the shaft in a non-contact manner through a bearing gap by a hydrodynamic pressure of the oil, which is generated in the bearing gap while the shaft relatively rotate with respect to the bearing member, a housing configured to house the bearing member and having an opening at one end thereof, another end thereof being enclosed, a sealing member configured to seal a part of the opening of the housing, a channel configured to communicate a space formed between the shaft, the bearing member and the housing with an outside air, and a pressing member configured to press and fix the bearing member on the housing. At least one open part configured to release an air bubble contained in the housing is provided between the bearing member and the sealing member.

REFERENCES:
patent: 5806987 (1998-09-01), Nose et al.
patent: 7126737 (2006-10-01), Atsuumi et al.
patent: 2004/0184127 (2004-09-01), Nakajima et al.
patent: 2006/0061847 (2006-03-01), Itami
patent: 2006/0208179 (2006-09-01), Itami
patent: 2007/0146852 (2007-06-01), Itami
patent: 2007/0153349 (2007-07-01), Itami et al.
patent: 5-22649 (1993-01-01), None
patent: 5-327969 (1993-12-01), None
patent: 6-3615 (1994-01-01), None
patent: 9-318900 (1997-12-01), None
patent: 10-31177 (1998-02-01), None
patent: 10-31181 (1998-02-01), None
patent: 10-31182 (1998-02-01), None
patent: 10-31183 (1998-02-01), None
patent: 2957785 (1999-07-01), None
patent: 11-305161 (1999-11-01), None
patent: 2000-275563 (2000-10-01), None
patent: 2002-27706 (2002-01-01), None
patent: 2002-139041 (2002-05-01), None
patent: 2002-303815 (2002-10-01), None
patent: 2002-372680 (2002-12-01), None
patent: 3391954 (2003-01-01), None
patent: 2003-153516 (2003-05-01), None
patent: 2003-177346 (2003-06-01), None
patent: 2004-333657 (2004-11-01), None
patent: 2005-92129 (2005-04-01), None
patent: 2005-107512 (2005-04-01), None
patent: 2005-352059 (2005-12-01), None
patent: 2006-72038 (2006-03-01), None
patent: 2006-113213 (2006-04-01), None
patent: 2006-259336 (2006-09-01), None
patent: 2007-6697 (2007-01-01), None
patent: 2007-133192 (2007-05-01), None
patent: 2007-171503 (2007-07-01), None
patent: 2007-171841 (2007-07-01), None
patent: 2007-178465 (2007-07-01), None
patent: 3995961 (2007-08-01), None
patent: 2007-316657 (2007-12-01), None
patent: 2008-70752 (2008-03-01), None
patent: 2008-170791 (2008-07-01), None
patent: 2009-66834 (2009-04-01), None
patent: 2009-69474 (2009-04-01), None

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