Boots – shoes – and leggings
Patent
1995-04-11
1996-12-17
Gordon, Paul P.
Boots, shoes, and leggings
360135, 427510, 427128, 428694TR, 428694SG, G06F 1900, G11B 582, B05D 306
Patent
active
055860400
ABSTRACT:
Controlled laser texturing of a magnetic recording disk is accomplished by use of a textured test band on the disk and an analyzing laser system to provide feedback to the texturing laser. The analyzing laser system determines, from diffracted laser light, the average height of the laser-induced bumps formed in the test band by the texturing laser. The analyzing laser beam is directed to the substrate surface and overlaps a group of individual bumps formed in a repetitive pattern. A scanning linear photodector array receives light diffracted from the surface. The digitized output of the array is the angular distribution of diffracted light intensities and is used to compute the average height of the bumps in the test band. The disk is then translated radially so that the texturing laser is aligned with the region of the disk where the textured landing zone is to be placed. Then, in response to the computed value of average bump height in the test band, a correction signal or signals is output to modify one or more parameters of the texturing laser so that the texturing laser can form bumps of the correct average height in the textured landing zone.
REFERENCES:
patent: 5062021 (1991-10-01), Ranjan et al.
patent: 5108781 (1992-04-01), Ranjan et al.
patent: 5270560 (1993-12-01), Cheng
patent: 5280401 (1994-01-01), Inomata et al.
patent: 5336531 (1994-08-01), Nakayama et al.
H. M. van Driel, J. E. Sipe & J. F. Young, Laser-Induced Periodic Surface Structure on Solids: A Universal Phenomenon, The American Physical Society, Physical Review Letters, vol. 49, No. 26, pp. 1955-1958, Dec. 27, 1982.
J. F. Young, J. S. Preston, H. M. vanDriel & J. E. Sipe, Laser-induced Periodic Surface Structure. II. Experiments on Ge, Si, A1, and Brass, The American Physical Society, Physical Review B, vol. 27, No. 2, pp. 1155-1172, Jan. 15, 1983.
Baumgart Peter M.
Gudeman Christopher S.
Krajnovich Douglas J.
Meeks Steven W.
Nguyen Thao A.
Berthold Thomas R.
Brown Thomas E.
Gordon Paul P.
International Business Machines - Corporation
LandOfFree
Process and apparatus for controlled laser texturing of magnetic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for controlled laser texturing of magnetic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for controlled laser texturing of magnetic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1997307