Stock material or miscellaneous articles – Composite – Of polyimide
Patent
1991-02-12
1993-08-10
Thibodeau, Paul J.
Stock material or miscellaneous articles
Composite
Of polyimide
385 14, 385 15, 385130, B32B 2706
Patent
active
052347729
ABSTRACT:
A dielectric multilayer filter applicable to optical communication systems is disclosed, as is a fabrication method therefor, and an optical element incorporating the same. The disclosed dielectric multilayer filter includes a fluorinated polyimide base layer with a dielectric multilayer formed thereover. According to the disclosed fabrication method, a fluorinated polyimide layer is formed by applying liquid fluorinated polyimide material over a smooth surface to a predetermined thickness followed by drying and hardening, after which a dielectric multilayer is formed over the fluorinated polyimide layer by an ion assist vapor deposition method, and then stripping the fluorinated polyimide layer away from the underlying smooth surface. The disclosed dielectric multilayer filter can be easily and economically produced at a suitably small thickness with no need for grinding, exhibits highly uniform physical and optical properties, and is exceedingly durable and resistant to curling and warping.
REFERENCES:
patent: 4790615 (1988-12-01), Seki et al.
patent: 5108201 (1992-04-01), Matsuura et al.
"Design and Evaluation of Automatic Optical Fiber Operation Support System," H. Takasugi et al., Proceedings of 39th International Wire and Cable Symposium, 1990, pp. 632-629.
"Research on thin film anticounterfeiting coatings at the National Research Council of Canada," J. A. Dobrowolski et al., Applied Optics, vol. 28, No. 14, Jul. 15, 1989, pp. 2703-2717.
Applied Optics, vol. 24, No. 4, Feb. 15, 1985, J. R. McNeil et al., "Properties of TiO2 and SiO2 thin films deposited using ion assisted deposition", pp. 486-489.
Journal of Light Wave Technology, vol. 7, No. 11, Nov. 1989, H. Yanagawa et al., "Filter-Embedded Design and Its Applications to Passive Components", pp. 1646-1653.
Hanafusa Hiroaki
Nishi Shiro
Noda Juichi
Oguchi Taisuke
Tomita Nobuo
Nakarani D. S.
Nippon Telegraph and Telephone Corporation
Thibodeau Paul J.
LandOfFree
Dielectric multilayer, filter, manufacturing method therefor, an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dielectric multilayer, filter, manufacturing method therefor, an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric multilayer, filter, manufacturing method therefor, an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1724199