Method of making high performance optical edge and...

Details Method of making high performance optical edge and... Method of making high performance optical edge and...

2006-10-10

2006-10-10

Assaf, Fayez G. (Department: 2872)

Optical: systems and elements

Light interference

Produced by coating or lamina

C359S590000, C359S587000, C359S588000, C359S580000

Reexamination Certificate

active

07119960

ABSTRACT:
High performance optical edge and laser-line filters and methods of making the same are disclosed. The optical edge filters have an edge steepness greater than about 0.8% as measured by dividing (a) the edge width from the 50% transmission wavelength to the optical density 6 (“OD6”) wavelength by (b) the 50% transmission wavelength. The optical edge filters also have an average transmission above about 95%. The laser-line filters have an extremely high transmission in the passband (greater than 90%), an extremely narrow transmission bandwidth, and achieve blocking with an optical density (OD) greater than 5 at wavelengths that differ from the laser wavelength by less than 1% of the laser wavelength. The methods for making such filters accurately determine when deposition of each layer of the filter should terminate.

REFERENCES:
patent: 4142958 (1979-03-01), Wei et al.
patent: 4793908 (1988-12-01), Scott et al.
patent: 5272518 (1993-12-01), Vincent
patent: 6649208 (2003-11-01), Rodgers
patent: 6809859 (2004-10-01), Erdogan et al.
patent: 2005/0110999 (2005-05-01), Erdogan et al.
patent: 2005/0167264 (2005-08-01), Sternbergh et al.
Becker, J., “Ion-Beam Sputtering,” Handbook of Optical Properties, vol. 1, Thin Films for Optical Coatings, Ed. By R.E. Hummel and K.H. Guenther, pp. 189-211, (CRC Press, Boca Raton, 1995).
Macleod, H. Angus, “Thin-Film Optical Filters,” 3rdEd., Institute of Physics (2001).
Macleod, H.A., “Turning value monitoring of narrow-band all-dielectric thin-film optical filters,” Optica Acta, vol. 19, pp. 1-28 (1972).
Press, W.H., et al., The Levenberg-Marquardt method implemented under the name “mrqmin( )”,Numerical Recipes in C: The Art of Scientific Computing, 2nded., Chapter 15, pp. 683-688 (1995).
Martin, P.J., “Ion-beam-assisted deposition of thin films,” Applied Optics, vol. 22, No. 1, pp. 178-184 (1983).
“Interference Filters,” Melles Griot, pp. 13.25-13.29.

Affiliated with

Also associated with

Rating

Method of making high performance optical edge and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making high performance optical edge and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making high performance optical edge and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3672292