Adjustable lens device

Details Adjustable lens device Adjustable lens device

2007-01-31

2008-09-09

Dang, Hung X. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S694000, C359S823000

Reexamination Certificate

active

07423815

ABSTRACT:
An adjustable lens device includes a fixing seat, an adjusting seat sleeved on the fixing seat, and first and second lens modules mounted to the fixing seat. The fixing seat is formed with a plurality of positioning projections, and a plurality of guide slots that extend parallel to an axis. The adjusting seat is formed with an annular groove for movably receiving the positioning projections, and a plurality of driving slots that extend spirally and that correspond to the guide slots. Guide components on the second lens module pass through the guide slots and the driving slots. By virtue of the guide slots, the driving slots and the guide components, rotation of the adjusting seat relative to the fixing seat can move the second lens module for zoom adjustment.

REFERENCES:
patent: 6661589 (2003-12-01), Takanashi et al.

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