Optical-characteristic measurement apparatus and...

Details Optical-characteristic measurement apparatus and... Optical-characteristic measurement apparatus and...

2007-10-16

2007-10-16

Mai, Huy (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S206000, C351S208000, C351S209000

Reexamination Certificate

active

11155903

ABSTRACT:
An eye-anterior-part observation system receives light reflected from an eye anterior part of the eye under measurement illuminated by an eye-anterior-part illumination light source. A movement-distance calculation section measures the displacement of the eye from an eye anterior image by the eye-anterior-part observation system. A wavefront compensation device compensates the wavefront of light reflected or transmitted. A wavefront-measurement section projects light on the eyeground, and receives light reflected from the eyeground through the wavefront compensation device. A calculation apparatus measures wavefront aberrations, based on the measured displacement of the eye and a light-receiving signal by the wavefront-measurement section. A wavefront-compensation-device control apparatus generates a control signal based on the wavefront aberration, and outputs to the wavefront compensation device to compensate the wavefront. A stage with a motor moves the wavefront compensation device in a direction transversing the optical axis of the reflected light, based on the displacement of the eye.

REFERENCES:
patent: 5777719 (1998-07-01), Williams et al.
patent: 6299307 (2001-10-01), Oltean et al.
patent: 6572230 (2003-06-01), Levine
patent: 6736507 (2004-05-01), Kudryashov et al.
patent: 2003/0071969 (2003-04-01), Levine et al.
patent: 2005/0286020 (2005-12-01), Campbell
patent: 05-212002 (1993-08-01), None
patent: 09-094230 (1997-04-01), None
patent: 2002-209854 (2002-07-01), None
patent: WO 03/000153 (2003-01-01), None
patent: WO 03/020121 (2003-03-01), None

Affiliated with

Also associated with

Rating

Optical-characteristic measurement apparatus and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3883664