Patent ID: 11867928
Assignee: ADLENS LTD
Field: Optics (Instruments)
Classification: CPC G  B | IPC B  G

Claim 16:
17. An overflow device for use in filling an envelope of a compression-type adjustable optical device, such as a liquid lens or mirror, which is formed in part by a distensible membrane having an exterior optical surface, with a substantially incompressible fluid to a particular focal length or radius of curvature under vacuum; the overflow device comprising an elongate hollow body portion which has an inlet portion at a distal end defining a fluid inlet and an outlet portion at a proximal end defining a fluid outlet and defines an interior passageway forming a fluid overflow conduit between the fluid inlet and the fluid outlet, and a deflector portion which is disposed exteriorly of the body portion intermediate the inlet portion and outlet portion; wherein the inlet portion is adapted to be connected to the an interior of an envelope to be filled, and the deflector portion is shaped to deflect fluid flowing out of the fluid outlet away from the overflow device.