Imaging apparatus

Details Imaging apparatus Imaging apparatus

2011-08-09

2011-08-09

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S683000, C359S715000, C359S771000, C359S775000

Reexamination Certificate

active

07995285

ABSTRACT:
An imaging apparatus includes a first lens has a positive refractive power, a second lens has a positive refractive power, a third lens has a negative refractive power, a fourth lens has a negative refractive power, an image sensor and a driving device. The first lens, the second lens, the third lens, the fourth lens and the image sensor are arranged in the order written along an optical axis of the imaging apparatus from the object side to the image side thereof. The driving device is connected to the second lens and configured for driving the second lens to move toward the object side to perform a zoom-in function of the imaging apparatus.

REFERENCES:
patent: 3926504 (1975-12-01), Fleischman
patent: 4830478 (1989-05-01), Yamakawa et al.
patent: 7443610 (2008-10-01), Lin et al.
patent: 2010/0073779 (2010-03-01), Wang et al.
patent: 2010/0302653 (2010-12-01), Liang et al.

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