Multilayer thin film dielectric bandpass filter

Details Multilayer thin film dielectric bandpass filter Multilayer thin film dielectric bandpass filter

1996-11-06

1999-07-20

Spyrou, Cassandra

Optical: systems and elements

Light interference

Produced by coating or lamina

359589, 359900, G02B 528

Patent

active

059263172

ABSTRACT:
A design for producing bandpass filters with passbands that are centered at the same wavelength for each mode of polarization. Filters are of the all-dielectric type that consist of single and multiple cavities of bandpasses. All of the layers are of the Quarter Wave type for ease of manufacture with the possible exception of the last few layers being modified to reduce reflection into a new media. The basic structure of the multi-layer bandpass filter is as follows: (XY).sup.n (YY)(XX).sup.m (YY)(YX).sup.n where n and m are integers and wherein X is one of a high refractive index layer and a low refractive index layer; and, wherein Y is the other of the high and low refractive index layer, X and Y being opposite indexes of refraction.

REFERENCES:
patent: 4373782 (1983-02-01), Thelen
patent: 4900137 (1990-02-01), Carter
patent: 5274661 (1993-12-01), Von Gunten et al.

Affiliated with

Also associated with

Rating

Multilayer thin film dielectric bandpass filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayer thin film dielectric bandpass filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer thin film dielectric bandpass filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1327309