Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2006-03-06
2009-12-01
Thompson, Timothy J (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C359S205100, C359S208100
Reexamination Certificate
active
07625089
ABSTRACT:
An improved wavefront sensor is provided that enhances the initial focus and precision of imaged spots used to determine the monochromatic wave aberrations of the eye. The wavefront sensor includes an adjustment camera that is independent of a lenslet camera. A laser in a lower power mode is projected onto the retina of the eye and is brought into more precise or sharp focus by a control system employing data from the adjustment camera, which aids in focusing the imaged spots. “Trombone”-type optics are used to adjust the focus of the light projected onto the retina and the imaged spots onto a sensor. The laser has a higher power mode used when acquiring data of the imaged spots from the sensor.
REFERENCES:
patent: 4029396 (1977-06-01), Shenker
patent: 4190332 (1980-02-01), Body et al.
patent: 4471448 (1984-09-01), Williams
patent: 4490039 (1984-12-01), Bruckler et al.
patent: 5382988 (1995-01-01), Nanjo
patent: 5504543 (1996-04-01), Ueno
patent: 5523809 (1996-06-01), Kohayakawa
patent: 5537163 (1996-07-01), Ueno
patent: 5684561 (1997-11-01), Yancey
patent: 5777719 (1998-07-01), Williams et al.
patent: 5891132 (1999-04-01), Hohla
patent: 5963300 (1999-10-01), Horwitz
patent: 6042233 (2000-03-01), Mihashi et al.
patent: 6155684 (2000-12-01), Bille et al.
patent: 6199986 (2001-03-01), Williams et al.
patent: 6264328 (2001-07-01), Williams et al.
patent: 6304723 (2001-10-01), Kohayakawa
patent: 6550917 (2003-04-01), Neal et al.
patent: 2006/0126019 (2006-06-01), Liang et al.
patent: 42 22 395 (1994-01-01), None
patent: 10014479 (2001-10-01), None
patent: 0 910 984 (1999-04-01), None
patent: 11 137522 (1999-05-01), None
patent: WO 93/14470 (1993-07-01), None
patent: WO 93/24048 (1993-12-01), None
patent: WO 96/00031 (1996-01-01), None
patent: WO 99/27334 (1999-06-01), None
patent: WO 01/28476 (2001-04-01), None
Liang et al.,Objective measurement of wave aberrations of the human eye with the use of a Hartmann-Shack wave-front sensor, J. Opt. Soc. Am. vol. 11, No. 7, pp. 1949-1957 (Jul. 1994).
J. Liang and D.R. Williams,Aberrations and retinal image quality of the normal human eye, Journal of the Optical Society of America, vol. 14, No. 11, Nov. 1997, pp. 2873-2883.
Witthoff, C.: Wavefront Sensor Noise Reduction and Dynamic Range Expansion by Means of Optical Image Intensification:, Optical Engineering, Soc. Of Photo-Optical Instrumentation Engineers, vol. 29, No. 10, Oct. 1990 (Oct. 1990), pp. 1233-1238.
International Search Report (PCTISA/210) and Written Opinion (PCT/ISA/237) mailed on Aug. 20, 2001.
Polland Hans-Joachim
Sappel Christoph
Youssefi Gerhard
Bausch & Lomb Incorporated
Thompson Timothy J
LandOfFree
Wavefront sensor having multi-power beam modes, independent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wavefront sensor having multi-power beam modes, independent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavefront sensor having multi-power beam modes, independent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4099443