Lens barrels

Details Lens barrels Lens barrels

2006-03-28

2006-03-28

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S694000, C359S699000, C359S701000, C396S072000, C396S073000, C396S349000

Reexamination Certificate

active

07019915

ABSTRACT:
A lens barrel is retractable in electronic equipment having an image-generating device, such as a CCD. During photographing, the lens barrel relocates a first lens group and a second lens group to a predetermined position in an optical axis to zoom the image of an object. During collapsing, the first lens group and the second lens group adjacent to the object side are transferred to a side of a CCD which is away from the optical axis and a focus driving mechanism drives the third lens group along the optical axis. The focus driving mechanism is disposed inside the lens barrel.

REFERENCES:
patent: 6952526 (2005-10-01), Nomura
patent: 6959148 (2005-10-01), Nomura
patent: 6978088 (2005-12-01), Nomura
patent: 2004/0042096 (2004-03-01), Momura
patent: 2004/0042775 (2004-03-01), Momura
patent: 2004/0051967 (2004-03-01), Nomura
patent: 2004/0091253 (2004-05-01), Nomura
patent: 2004/0141736 (2004-07-01), Nomura
patent: 2003-315861 (2003-11-01), None
patent: 2004-085934 (2004-03-01), None

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