Variable lens

Details Variable lens Variable lens

2007-11-27

2007-11-27

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

Fluid

C359S666000, C359S667000

Reexamination Certificate

active

10556243

ABSTRACT:
A variable lens includes a chamber defined by at least one side wall and has an optical axis extending longitudinally through the chamber. The chamber contains a first fluid and a second fluid contact over a meniscus extending transverse the optical axis. The perimeter of the meniscus is constrained by the side walls. The fluids are substantially immiscible, and have different indices of refraction. At least one pump is arranged to controllably alter the position of the meniscus along the optical axis by altering the relative volume of each of the fluids contained within the chamber.

REFERENCES:
patent: 4890903 (1990-01-01), Treisman et al.
patent: 6369954 (2002-04-01), Berge et al.
patent: 2006/0274425 (2006-12-01), Kuiper et al.
patent: 19710668 (1998-09-01), None
patent: WO99/18456 (1999-04-01), None
patent: WO02/069016 (2002-09-01), None
patent: WO03/034748 (2003-04-01), None
Berge B et al: Variable focal lens controlled by an external voltage: an application of electrowetting: European Physical Journal E. Soft Matter, EDP . . . hand col., paragraph 1—p. 160, right-hand col., paragraph 2; figure 1. No copy provided.

Affiliated with

Also associated with

Rating

Variable lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3854754