Lens barrel

Details Lens barrel Lens barrel

2008-03-18

2008-03-18

Hasan, M. (Department: 2873)

Optical: systems and elements

Lens

With support

C359S824000, C359S694000, C359S814000

Reexamination Certificate

active

10570703

ABSTRACT:
A lens barrel is provided which has a compact inner lens mechanism and is able to be manufactured in a small size at low cost. In the lens barrel according to the present invention, a number of shafts can be reduced by making a guiding shaft to be a common guiding shaft. In addition, a guiding shaft is formed only within a moving range of a zoom movable member, and a coil unit is disposed in a space positioned behind the guiding shaft, hence the whole lens barrel can be made compact. On the other hand, since the guiding shaft and a guiding shaft are formed separately, a sleeve section of the zoom movable member and a sleeve section of a focus movable member are made to have sufficient lengths, and also a sufficient length for sliding the respective movable members can be obtained.

REFERENCES:
patent: 5748394 (1998-05-01), Shimazaki et al.
patent: 5828503 (1998-10-01), Kaneda et al.
patent: 06-174998 (1994-06-01), None
patent: 08-149777 (1996-06-01), None
patent: 08-248293 (1996-09-01), None
patent: 2000-137156 (2000-05-01), None

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