Eyetracker and method of use

Details Eyetracker and method of use Eyetracker and method of use

1988-02-10

1989-07-18

Jaworski, Francis

Surgery

Truss

Pad

351210, 128745, A61B 1736

Patent

active

048483400

ABSTRACT:
An eyetracker for moving the path of a laser beam in response to patient eye movement comprises a visual light source on which the patient can fixate to bring the visual axis of the eye into a reference alignment with the optical axis of the light source. A laser source, having its beam coaxially aligned with the optical axis of the light source, cuts a mark onto the cornea of the eye when the eye is in the reference alignment. An infrared optical system monitors movement of the mark to generate an error signal which is proportional to any movement of the mark out of the reference alignment. Means are also provided by the eyetracker to move the path of the laser beam back into the reference alignment to reduce the error signal to a null.

REFERENCES:
patent: 4053845 (1977-10-01), Gould
patent: 4161436 (1979-07-01), Gould
patent: 4287410 (1981-09-01), Crane et al.
patent: 4443075 (1984-04-01), Crane
patent: 4503854 (1985-03-01), Jako
patent: 4517980 (1985-05-01), Tagnon
patent: 4561436 (1985-12-01), Munnerlyn
patent: 4579430 (1986-04-01), Bille
patent: 4598311 (1986-07-01), Bellina
patent: 4601288 (1986-07-01), Myers
patent: 4665913 (1987-05-01), L'Esperance, Jr.
patent: 4669466 (1987-06-01), L'Esperance
patent: 4702575 (1987-10-01), Breglia
patent: 4704583 (1987-11-01), Gould
patent: 4732148 (1988-03-01), L'Esperance, Jr.
patent: 4770172 (1988-09-01), L'Esperance, Jr.
patent: 4773414 (1988-09-01), L'Esperance, Jr.
patent: 4784135 (1988-11-01), Blum et al.
"FM-Laser Operation of the ND:YAG Laser," by Kuizenga et al., IEEE Journal of Quantum Electronics, Nov. 1970.
"Laser Interactions with the Cornea", by Krauss et al, Survey of Ophthalmology, Jul.-Aug. 1986.
"Configuring an Electrostatic Membrane Mirror by Least-Squares Fitting with Analytically derived Influents Functions," Claflin et al., J. Opt. Am. A., Nov. 1986.
"Defects in the Optical Synthesis," published and date unknown.

Affiliated with

Also associated with

Rating

Eyetracker and method of 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 Eyetracker and method of use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eyetracker and method of use will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-163523