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US 2003/0072091 A1Published application
Focusing apparatus of a telescopic lens system
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorTetsuya Abe
Life of this patent
Estimating the term…
Abstract
A focusing apparatus applied to a telescopic lens system includes more than two lens groups. The focusing apparatus includes two focusing mechanisms which are operable independently from each other, and are adapted to vary both absolute and relative positions of two lens groups in the optical axis direction.
Claims26
A focusing apparatus of a telescopic lens system comprising more than two lens groups;
- wherein said focusing apparatus comprises two focusing mechanisms which are operable independently from each other, and are adapted to vary both absolute and relative positions of said more than two lens groups.
Dependencies are inferred from the claim text.