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

Claim 17:
18. A wall component for a compression-type adjustable optical device having a fluid-filled envelope which is formed at least in part by a distensible membrane and an opposing inflexible wall which is formed by or supported by a wall component, the wall component comprising a hard member having a first surface which is configured to form or support the inflexible wall of the envelope of the optical device and being formed with an interior channel which opens onto the first surface of the hard member; and an overflow portion comprising an elongate hollow body portion having a distal end portion which can be removably attached to the hard member and a proximal end portion, and a deflector portion which is disposed exteriorly of the body portion intermediate the distal end portion and the proximal end portion; wherein the body portion defines an interior passageway forming a fluid overflow conduit that extends between the distal end portion of the body portion where it communicates with the interior channel in the hard member when attached and a fluid outlet defined by the proximal end portion of the body portion, the body portion extending away from the hard member; wherein excess fluid introduced into the envelope of the optical device during filling flows into the fluid overflow conduit provided by the interior passageway of the overflow portion from the interior channel formed in the hard member and out of the fluid outlet of the body portion; the deflector portion being shaped to deflect fluid exiting from the fluid outlet away from the overflow device.