Lens device, imaging device using the same and cell-phone...

Details Lens device, imaging device using the same and cell-phone... Lens device, imaging device using the same and cell-phone...

2007-04-10

2007-04-10

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Lens

With support

C359S813000, C359S814000

Reexamination Certificate

active

11230563

ABSTRACT:
An imaging device comprises a first lens unit and a second lens unit. A first fixed barrel of the first lens unit movably holds a first lens frame, which holds a first lens group, in an optical-axis direction. A second fixed barrel of the second lens unit movably holds a second lens frame, which holds a second lens group, in the optical-axis direction. The first and second fixed barrels are secured in series in the optical-axis direction. The first and second lens units are adapted to be easily assembled in series in the optical-axis direction. Misalignment of the plural lens groups is prevented, and the first and second lens groups are accurately and individually moved in the optical-axis direction.

REFERENCES:
patent: 4596449 (1986-06-01), Iwata et al.
patent: 4605286 (1986-08-01), Sumi
patent: 5572372 (1996-11-01), Sekine et al.
patent: 6800970 (2004-10-01), Aoshima
patent: 2002/0044260 (2002-04-01), Takahashi et al.
patent: 56-147132 (1981-11-01), None
patent: 62-195615 (1987-08-01), None

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