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:
Jun. 11, 2002
Filed:
May. 25, 1999
Michael L. Wach, Atlanta, GA (US);
Dwight Holter, Naples, FL (US);
Eric T. Marple, Atlanta, GA (US);
Cirrex Corp., Altanta, GA (US);
Abstract
Optical assembly for controlling or limiting undesirable photon entrance, reflection, departure, or appearance. A material opaque to unwanted photons can be applied to an optical assembly that would otherwise allow penetration of the unwanted photons. For example, a filter can be applied to a waveguide member. A first face surface of the filter faces toward an end of the waveguide member and a second face surface of the filter faces away from that member end. A mask adheres to one of the filter surfaces. The mask is substantially opaque in at least some selected spectral region to impact the extent to which photons in that spectral region can pass through the filter and to the waveguide member.