Variable focus optical apparatus

Details Variable focus optical apparatus Variable focus optical apparatus

2006-08-01

2006-08-01

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

Fluid

C359S665000

Reexamination Certificate

active

07085065

ABSTRACT:
A variable focus lens apparatus for use in spectacles or the like is formed from a fluid envelope comprising two sheets, at least one of which is flexible. The flexible sheet is retained in place between two rings, which are directly secured together. This may be by means of adhesive, ultrasonic welding, or any similar process. If the other sheet is rigid, then it may be directly secured to one of the rings.

REFERENCES:
patent: 504890 (1893-09-01), Ohmart
patent: 2836101 (1958-05-01), De Swart
patent: 4834512 (1989-05-01), Austin
patent: 5668620 (1997-09-01), Kurtin et al.
patent: 5684637 (1997-11-01), Floyd
patent: 5973852 (1999-10-01), Task
patent: 42 17 853 (1993-12-01), None
patent: WO 98/11458 (1998-03-01), None
patent: WO 99/47948 (1999-09-01), None
patent: WO 01/75510 (2001-10-01), None

Affiliated with

Also associated with

Rating

Variable focus optical apparatus 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 focus optical apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable focus optical apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3713178