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US 2004/0169918 A1Published application
Coarse and fine drives for a monocular
AssigneeHensoldt AG
InventorsDirk Luthardt, Myron Javorsky
Life of this patent
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Abstract
A focusing optic can be axially displaced along the optical axis in a housing with the aid of coarse and fine drives. The coarse drive includes a coarse belt drive by which the coarse drive and the focusing optic cooperate actively with one another and the fine belt drive is provided for connecting the fine drive and the focusing optic.
Claims13
A focusing optic assembly comprising:
- a focusing optic defining an optical axis;
- a coarse drive unit for displacing said focusing optic along said axis;
- said coarse drive unit including a coarse belt drive for operatively connecting said coarse drive unit to said focusing optic;
- a fine drive unit for displacing said focusing optic along said axis;
- and,
- said fine drive unit including a fine belt drive for operatively connecting said fine drive unit to said focusing optic.
3 more elements
Dependencies are inferred from the claim text.