Multi-lens optical device for use in an optical scanner

Details Multi-lens optical device for use in an optical scanner Multi-lens optical device for use in an optical scanner

1995-01-24

1996-11-19

Ben, Loha

Optical: systems and elements

Lens

With support

359821, 359441, 359889, G02B 702

Patent

active

055768970

ABSTRACT:
A multi-lens optical device for use in an optical scanner including a lens holder having a viewing aperture, and a lens unit disposed in front of the viewing aperture, wherein the lens unit includes a lens holder, a plurality of lenses of different magnifying power respectively mounted on the lens holder, a reversible motor, and a reduction gearing driven by the reversible motor to move the lens holder, permitting one lens to be aligned with the viewing aperture for scanning.

REFERENCES:
patent: 2871776 (1959-02-01), Calamai
patent: 3355810 (1967-12-01), Franklin
patent: 3631775 (1972-01-01), Tidd
patent: 4324050 (1982-04-01), Weir
patent: 4544236 (1985-10-01), Endo
patent: 4942425 (1990-07-01), Kamimura et al.
patent: 5122911 (1992-06-01), Kuo
patent: 5128808 (1992-07-01), Dosaka
patent: 5285224 (1994-02-01), Sims

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