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US 7,548,377 B2Granted
Drop centering device
AssigneeVarioptic S.A.
InventorBruno Berge
Life of this patent
Estimating the term…
Abstract
A method for centering a drop of liquid on a given point on a surface. The inventive method consists in forming a bell-mouthed recess, whereby said recess has a curvature at any point at the limit of contact between the drop and the recess that is lower than or opposite to the curvature of a circle (TC) that is tangent to the surface of the recess to said point and at a symmetrical point (CP2) of said surface.
Claims10
An optical element having an optical axis, comprising:
- a container;
- a first liquid and a second liquid contained in said container;
- and
- a ring-shaped electrode surrounding at least one of said first liquid and said second liquid;
- wherein said first liquid and said second liquid are immiscible, form a curved boundary, and have different refractive indices.
2 more elements
Dependencies are inferred from the claim text.