Optical apparatus with two optical systems and method for moving

Details Optical apparatus with two optical systems and method for moving Optical apparatus with two optical systems and method for moving

1998-04-07

1999-12-14

Dang, Hung Xuan

Optical: systems and elements

Lens

With support

359823, G02B 702

Patent

active

060025344

ABSTRACT:
A stereoscopic optical device with a simple mechanism and a thinner dimension in a direction which corresponds to a diametrical direction of a lens group accommodated therein. On a fixing plate, a plurality of movable plates each of which supports a pair of lens groups on both sides thereof along an optical axis respectively, put one over the other, in which the movable plates are slidably moved to each other and to the fixing plate through a cam mechanism for a zooming operation. A total thickness of the plurality of movable plates and the fixing plate, is designed to be approximately equal to or less than a diameter of the lens group.

REFERENCES:
patent: 5589723 (1996-12-01), Yoshida et al.
patent: 5828503 (1998-10-01), Kaneda et al.

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