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

1998-08-11

Epps, Georgia Y.

Optical: systems and elements

Lens

With variable magnification

359701, 359826, G02B 1514, G02B 0702

Patent

active

057935378

ABSTRACT:
A lens barrel is disclosed that includes: an outer barrel provided on an inner periphery thereof with a first thread and at least one linear guide groove intersecting the first thread and extending in a direction of an optical axis of the lens barrel; a middle barrel provided on an outer periphery thereof with a second thread meshing with the first thread; an inner barrel positioned inside the middle barrel, the inner barrel being provided with at least one follower which engages with the at least one linear guide groove, so that the inner barrel is guided along the optical axis without rotating about the optical axis with respect to the outer barrel; and a recess formed at a front end of each of the at least one linear guide groove on the inner periphery of the outer barrel, the recess having a width dimension to enable rotational movement of the at least one follower into the at least one linear guide groove during initial meshing of the middle barrel with the outer barrel.

REFERENCES:
patent: 4171880 (1979-10-01), Mori et al.
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 5153626 (1992-10-01), Yamamoto
patent: 5218479 (1993-06-01), Chiou et al.
patent: 5231449 (1993-07-01), Nomura
patent: 5245476 (1993-09-01), Shono
patent: 5329329 (1994-07-01), Fukushima et al.
patent: 5349475 (1994-09-01), Nomura et al.
patent: 5394210 (1995-02-01), Nomura et al.
patent: 5430516 (1995-07-01), Uziie et al.
patent: 5467227 (1995-11-01), Nomura

Affiliated with

Also associated with

Rating

Lens barrel having a linear guide mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lens barrel having a linear guide mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens barrel having a linear guide mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-394905