Profiling the intensity distribution of optical beams

Details Profiling the intensity distribution of optical beams Profiling the intensity distribution of optical beams

1996-11-12

2000-05-02

Shay, David M.

Surgery

Instruments

Light application

606 3, 606 10, 606 13, 606 17, 359851, A61N 506

Patent

active

060567392

ABSTRACT:
A beam profiler comprising: an intensity modifier constructed and arranged to separately modify the intensity profile of different subbeam portions of an initial beam to thereby create respective subbeams each having a respective predetermined modification; and a subbeam-directing optical system constructed and arranged to direct the multiple subbeams along respective subbeam beam paths that substantially overlap in an overlap plane, whereby, a resulting beam of radiation is created at the overlap plane that has an intensity profile equal to the optical incoherent summation of the predetermined intensity profiles of said overlapping subbeams. The intensity modifier preferably comprises an array of intensity-modifying profiling elements disposed across the initial beam each producing a corresponding subbeam.

REFERENCES:
patent: 3670260 (1972-06-01), Koester et al.
patent: 3941973 (1976-03-01), Luck, Jr. et al.
patent: 4315130 (1982-02-01), Inagaki et al.
patent: 4484334 (1984-11-01), Pressley
patent: 4669466 (1987-06-01), L'Esperance
patent: 4733944 (1988-03-01), Fahlen et al.
patent: 4856513 (1989-08-01), Muller
patent: 4911711 (1990-03-01), Telfair et al.
patent: 4941093 (1990-07-01), Marshall et al.
patent: 4994058 (1991-02-01), Raven et al.
patent: 5019074 (1991-05-01), Muller
patent: 5091626 (1992-02-01), Lewis et al.
patent: 5163934 (1992-11-01), Munnerlyn
patent: 5312320 (1994-05-01), L'Esperance, Jr.
Bruno et al., "Laserbeam Shaping for Maximum Uniformity and Minimum Loss", Lasers& Applications, pp. 91-94 (Apr. 1987).
Deng, et al., "Uniform illumination of large targets using a lens array", Applied Optics, 25:377-381 (Feb. 1986).
Iwasaki et al., "Flattening Laserbeam Intensity Distribution", Lasers & Applications, pp. 76-78 (Apr. 1983).
Han et al., "Reshaping collimated laser beams with Gaussian profile to uniform profiles", Applied Optics 22:3644-3647 (Nov. 1983).
Rhodes et al., "Refractive optical systems for irradiance redistribution of collimated radiation: their design and analysis", Applied Optics, 19:3545-3553 (Oct. 1980).
Lacombat et al., "Laser Projection Printing", Solid State Technology, pp. 115-121 (Aug. 1980).
Grojean et al., "Production of flat top beam profiles for high energy lasers", Rev. Sci. Instrum., 51:375-376 (Mar. 1980).
Horton et al., "Design of a Specular Aspheric Surface to Uniformly Radiate a Flat Surface using a Nonuniform Collimated Radiation Source", Journal of Heat Transfer, pp. 453-458 (Nov. 1972).
emphasis.TM. Erodible Mask brochure (May 1993).
Bor et al., "Physical problems of excimer laser cornea ablation", Optical Engineering, 32:2481-2486 (Oct. 1993).
Morrill, "Theories presented on PRK's `central islands`", Ocular Surgery News, pp. 26-27 (Sep. 15, 1993).
Wright, "Corneal Islands Minimized by Latest Refinements", Opthalmology Times, (Sep. 15, 1993).
Piebenga, et al., "Excimer Photorefractive Keratectomy for Myopia", Opthalmology, 100:1335-1345 (Sep. 1993).
Krueger, et al., "Corneal Surface Morphology Following Excimer Laser Ablation With Humidified Gases", Arch Ophthalmol, 111:1131-1137 (Aug. 1993).
Tabat et al., "Profile characteristics of excimer laser micromachined features", SPIE, 1835:144-157 (1992).
Ozaki et al., "Cylindrical fly's eye lens for intensity redistribution of an excimer laser beam", Applied Optics, 28:106-110 (Jan. 1989).

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