Abrading – Abrading process – Utilizing fluent abradant
Reexamination Certificate
2005-11-22
2005-11-22
Eley, Timothy V. (Department: 3724)
Abrading
Abrading process
Utilizing fluent abradant
C451S037000, C451S044000, C451S054000, C451S055000, C451S057000
Reexamination Certificate
active
06966820
ABSTRACT:
A new technical advancement in the field of precision aluminum optics permits high quality optical polishing of aluminum monolith, which, in the field of optics, offers numerous benefits because of its machinability, lightweight, and low cost. This invention combines diamond turning and conventional polishing along with india ink, a newly adopted material, for the polishing to accomplish a significant improvement in surface precision of aluminum monolith for optical purposes. This invention guarantees the precise optical polishing of typical bare aluminum monolith to surface roughness of less than about 30 angstroms rms and preferably about 5 angstroms rms while maintaining a surface figure accuracy in terms of surface figure error of not more than one-fifteenth of wave peak-to-valley.
REFERENCES:
patent: 4115177 (1978-09-01), Nelson
patent: 4431268 (1984-02-01), Ohno et al.
patent: 4457587 (1984-07-01), Katayama et al.
patent: 4482209 (1984-11-01), Grewal et al.
patent: 4534827 (1985-08-01), Henderson
patent: 4599827 (1986-07-01), Goodwin
patent: 4915494 (1990-04-01), Shipley et al.
patent: 5095664 (1992-03-01), Zayhowski
patent: 5212581 (1993-05-01), Brash
patent: 5565052 (1996-10-01), Papenburg et al.
patent: 5640282 (1997-06-01), Ise et al.
patent: 5779871 (1998-07-01), Gillich
patent: 5897426 (1999-04-01), Somekh
patent: 5913712 (1999-06-01), Molinar
patent: 5978133 (1999-11-01), Gillich
patent: 6051203 (2000-04-01), Solntsev et al.
patent: 6077337 (2000-06-01), Lee
patent: 6099389 (2000-08-01), Nichols et al.
patent: 6099604 (2000-08-01), Sandhu et al.
patent: 6120354 (2000-09-01), Koose et al.
patent: 6218306 (2001-04-01), Fishkin et al.
patent: 6540843 (2003-04-01), Liu et al.
Diamonds Turn Infrared Mirrors Smooth: Daniel Vukobratovich et al; Optoelectronic World, pp. S25-S28; Oct. 1998.
Lyons, III James J.
Zaniewski John J.
Eley Timothy V.
Kirkman Christopher H.
The United States of America as represented by the Administrator
LandOfFree
High quality optically polished aluminum mirror and process... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High quality optically polished aluminum mirror and process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High quality optically polished aluminum mirror and process... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3490565