The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2000
Filed:
Oct. 27, 1998
Yugiao Liu, Sunnyvale, CA (US);
Paisheng Shen, Fremont, CA (US);
Peter C Chang, Mountain, CA (US);
Zhong Ming Mao, Santa Clara, CA (US);
Alliance Fiber Optics Products, Inc., Sunnyvale, CA (US);
Abstract
A filtering assembly includes a first substrate piece and a second substrate piece combined together with their dielectric band-pass filter-film adhered to each other in a face-to-face manner. A corresponding method for making the same includes following steps: (1) providing a raw substrate having at least a twice dimension of final assembly; (2) coating a designated dielectric band-pass filter-film on one side of said raw substrate; (3) dividing said coated substrate into two semi-finished substrate pieces with said filter-film thereon; (4) combining these two semi-finished substrate pieces together wherein said filter-film of one piece is directly adhered to that of another piece by a thin adhesive optical coupling layer, so that the filtering assembly has said filtering means sandwiched between said two substrates.