System, method and apparatus for providing uniform illumination

Optical waveguides – With optical coupler – Input/output coupler

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S015000

Reexamination Certificate

active

10408783

ABSTRACT:
An apparatus and method may provide uniform illumination on the retina using scanned continuous wave laser sources by making use of waveguides with regular shaped cross sections. Some embodiments of the present invention may provide illumination uniformity for selected spots and/or whole target scans, and may provide for constant dwell times every point of the scanned beam. Furthermore, the non-uniformities caused by starting and stopping scans may be eliminated by, for example, clipping-off both the beginning and end of the scan with a hard aperture. A modulator may be provided, enabling uniform irradiation of selected target areas.

REFERENCES:
patent: 4047795 (1977-09-01), Hughes et al.
patent: 4475027 (1984-10-01), Pressley
patent: 4534615 (1985-08-01), Iwasaki
patent: 4653495 (1987-03-01), Nanaumi
patent: 4718416 (1988-01-01), Nanaumi
patent: 4734550 (1988-03-01), Imamura et al.
patent: 4807963 (1989-02-01), Iwasaki
patent: 4941734 (1990-07-01), Williams et al.
patent: 5336216 (1994-08-01), Dewey
patent: 5336217 (1994-08-01), Buys et al.
patent: 5411502 (1995-05-01), Zair
patent: 5428699 (1995-06-01), Pon
patent: 5474549 (1995-12-01), Ortiz et al.
patent: 5633695 (1997-05-01), Feke et al.
patent: 5743902 (1998-04-01), Trost
patent: 5786924 (1998-07-01), Black et al.
patent: 5860968 (1999-01-01), Wojcik et al.
patent: 5997141 (1999-12-01), Heacock
patent: 6149644 (2000-11-01), Xie
patent: 6186628 (2001-02-01), Van de Velde
patent: 6193710 (2001-02-01), Lemberg
patent: 6267756 (2001-07-01), Feuerstein et al.
patent: 6413268 (2002-07-01), Hartman
patent: 6537270 (2003-03-01), Elbrecht et al.
patent: 6648876 (2003-11-01), Murakami
patent: 6676654 (2004-01-01), Balle-Petersen et al.
patent: 2001/0001118 (2001-05-01), Asah et al.
patent: 2002/0138071 (2002-09-01), Angeley et al.
patent: 2002/0161357 (2002-10-01), Anderson et al.
patent: 2005/0049582 (2005-03-01), DeBenedictis et al.
patent: 2006/0161145 (2006-07-01), Lin et al.
patent: 63-137120 (1988-06-01), None
patent: 2-252453 (1990-10-01), None
patent: WO95/18984 (1995-07-01), None
patent: WO99/58047 (1999-11-01), None
patent: WO 00/10049 (2000-02-01), None
patent: WO 01/91661 (2001-12-01), None
patent: WO 02/076318 (2002-10-01), None
Sterenborg, HJCM, et al. “Photodynamic therapy with pulsed light sources:a theoretical analysis” Physics in medicine and Biology, 41 (1996) pp. 835-849.
Roider, J. “Laser treatment of retinal diseases by subthreashold laser effects.” Seminars in Ophthalmology, (Mar. 14, 1999) pp. 19-26.
Gabel, VP, et al. “Visible and near infrared light absorption in pigment epithelium and choriod” Congress Series: XXIII Clinicum Ophthalmologicum, 450 (1978).
D. Dewey, “Corneal and Retinal Energy Density with various laser beam delivery systems and contact lenses” Ophthalmic Technologies, SPIE vol. 1423. 105-116. 1991.
R. Brinkman, et al. “Origin of Retinal Pigment Epithelium Cell Damage by Pulsed Laser Irradiance in the Nanosecond to Microsecond Time Regimen” Lasers Surg. Med. 27:451-464, 2000.
Kurt G. Klavuhn, “Illumination Geometry: The Importance of Laser Beam Special Characteristics”, Coherent Medical Group Laser Hair Removal Technical Note No. 2: Feb. 2000, pp. 1-8.
John F. Black et al., “Cooperative Phenomena in Two-Pulse, Two Color Laser Photocoagulation of Cutaneous Blood Vessels”, Proc SPIE 4244A-02, May 2001.
John F. Black et al., “Time-domain Optical and Thermal Properties of Blood Undergoing Laser Photocoagulation”, Proc SPIE 4257A-44, Jul. 2001, pp. 341-354.
S.L. Jacques, “The Role of Skin Optics in Diagnostic and Therapeutic uses of Lasers”, Lasers in Dermatology Proc of International Symposium, Ulm Sep. 26, 1989, pp. 1-21.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System, method and apparatus for providing uniform illumination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System, method and apparatus for providing uniform illumination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System, method and apparatus for providing uniform illumination will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3865000

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.