Lens barrel having a linear guide mechanism

Details Lens barrel having a linear guide mechanism Lens barrel having a linear guide mechanism

1997-01-09

2000-02-08

Epps, Georgia

Optical: systems and elements

Lens

With variable magnification

359704, G02B 1514

Patent

active

060233761

ABSTRACT:
A lens barrel is disclosed that includes: a linear moving barrel which moves along an optical axis; a unit secured to the linear moving barrel; a linear guide member which moves along the optical axis relative to the unit without rotating about the optical axis, the linear guide member comprising at least one guide leg extending in a direction of the optical axis and engaging with the unit so as to guide the unit along the optical axis while preventing the unit from rotating about the optical axis; and a surface for supporting the at least one guide leg so as not to bend toward the optical axis, wherein the supporting surface is formed on the unit and extends in the direction of the optical axis.

REFERENCES:
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 4993815 (1991-02-01), Yamazaki et al.
patent: 5231449 (1993-07-01), Nomura
patent: 5245476 (1993-09-01), Shono
patent: 5373397 (1994-12-01), Satoh et al.
patent: 5392160 (1995-02-01), Satoh et al.
patent: 5737644 (1998-04-01), Nomura et al.
patent: 5812325 (1998-09-01), Nomura et al.
patent: 5812887 (1998-09-01), Nomura et al.
A United Kingdom Search Report, dated Apr. 17, 1997, with UK Application No. 9701540.8.

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