Determining optimal positioning of ophthalmic devices by use...

Details Determining optimal positioning of ophthalmic devices by use... Determining optimal positioning of ophthalmic devices by use...

2006-12-21

2010-02-23

Stultz, Jessica T (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S206000, C351S246000, C606S005000

Reexamination Certificate

active

07665846

ABSTRACT:
A system or method of positioning an ophthalmic device relative to an eye is provided. The method first obtains a series of images of an eye. In these series of images, the distance between the ophthalmic device and the eye is varied while the region of the eye image remains substantially the same. It is possible then to process these images to determine the high frequency content associated with each image. By comparing the high frequency content associated with each image, it is possible to determine which image has the largest amount of high frequency content. The high frequency content is maximized when the image is the sharpest. An optimally focused image will have the largest amount of high frequency content. By examining the high frequency content associate with the series of images is impossible to adjust the relative position and distance between the eye and the ophthalmic device to the distance associated with the image having the largest amount of high frequency content (i.e., optimally focused).

REFERENCES:
patent: 6532298 (2003-03-01), Cambier et al.
patent: 2004/0263786 (2004-12-01), Williams et al.
patent: 2005/0105044 (2005-05-01), Warden et al.
patent: 2006/0119794 (2006-06-01), Hillis et al.
patent: 2006/0244907 (2006-11-01), Simmons
patent: 2007/0027442 (2007-02-01), Campin et al.
patent: 1422923 (2004-05-01), None
patent: 1437085 (2004-07-01), None
patent: 2359375 (2001-08-01), None

Affiliated with

Also associated with

Rating

Determining optimal positioning of ophthalmic devices by use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determining optimal positioning of ophthalmic devices by use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining optimal positioning of ophthalmic devices by use... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4182157