Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2006-03-28
2006-03-28
Mai, Huy (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S700000
Reexamination Certificate
active
07019916
ABSTRACT:
An optical apparatus according to the present invention has a plurality of lens units which can move in the direction of an optical axis, each of the lens units has a cam follower, a guide member which guides the each lens unit in the direction of the optical axis, and a cam member which has cams engaging with the cam followers and drives the lens units in the direction of the optical axis by rotating. The cam followers of the lens units are disposed substantially straight in the direction of the optical axis.
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English abstract of JPLO H08-234282.
English abstract of JPLO H07-311326.
English abstract of JPLO H10-161193.
English abstract of JPLO H11-212144.
English abstract of JPLO 2001-59932.
Mai Huy
Morgan & Finnegan.com
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