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:
Oct. 04, 2005
Filed:
Oct. 29, 2003
Applicants:
Seung-hyun Cho, Kuri, KR;
Byoung-whi Kim, Anyang, KR;
Hyeong-ho Lee, Daejeon, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/28 ;
U.S. Cl.
CPC ...
Abstract
Disclosed is the device for adding and dropping optical signals using a bulk dielectric optical thin film and four lens elements. To achieve this purpose, the bulk dielectric optical thin film and the four lenses are combined to add/drop optical signals corresponding to predetermined wavelengths.