This application is a divisional of U.S. application Ser. No. 09/917,370 titled “System for converting optical beams to collimated flat-top beams”, filed Jul. 27, 2001 (which issued as U.S. Pat. No. 6,654,183 on Nov. 25, 2003 and is hereby incorporated by reference in its entirety, which in turn is a continuation-in-part of U.S. application Ser. No. 09/461,365 titled “Refractive optical system that converts a laser beam to a collimated flat-top beam”, filed Dec. 15, 1999 (which issued as U.S. Pat. No. 6,295,168 on Sep. 25, 2001).
Number | Name | Date | Kind |
---|---|---|---|
3476463 | Kreuzer | Nov 1969 | A |
4327972 | Brunsting | May 1982 | A |
4941721 | Banton et al. | Jul 1990 | A |
5099358 | Okazaki | Mar 1992 | A |
5293269 | Burkhart et al. | Mar 1994 | A |
5315095 | Marom et al. | May 1994 | A |
5331468 | Noethen | Jul 1994 | A |
5373395 | Adachi | Dec 1994 | A |
5572367 | Jung et al. | Nov 1996 | A |
6075650 | Morris et al. | Jun 2000 | A |
6195208 | Ngoi et al. | Feb 2001 | B1 |
Entry |
---|
M. Arif et al., Two-Element Refracting System for Annular Gaussian-to-Bessel Beam Transformation, Applied Optics, vol. 37, No. 19, Jul. 1, 1998, pp. 4206-4209. |
N. Nishi et al., Control of the Laser Beam Irradiation Intensity Distribution Using Aspherical Multi Lens Array and Edge-Shaped Plates, Technology Reports of the Osaka University, vol. 45, No. 2209, Apr. 1995, pp. 35-42. |
K. Nemoto et al., Laser Beam by Forming Fabricated Aspherical Mirror, SPIE vol. 2375, pp. 103-108. |
J. Kasinski et al., Near-Diffraction-Limited Laser Beam Shaping with Diamond-Turned Aspheric Optics, Optics Letters, vol. 22, No. 14, Jul. 15, 1997, pp. 1062-1064. |
G. Erdei et al., Single-Element Refractive Optical Device for Laser Beam Profiling, SPIE, vol. 3100, 1997, pp. 400-412. |
J. Hoffnagle et al., Design and Performance of a Refractive Optical System that Converts a Gaussian to a Flattop Beam, Applied Optics, vol. 39, No. 30, Oct. 20, 2000, pp. 5488-5499. |
Number | Date | Country | |
---|---|---|---|
Parent | 09/461365 | Dec 1999 | US |
Child | 09/917370 | US |