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. 26, 1993
Filed:
May. 03, 1982
James E Rogers, Woodland Hills, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
High reflectance mirror 40 for multiple wavelengths has substrate 42 which carries first reflector stack 46 for reflection of the principal, longer wavelength and a stack 66 which reflects shorter wavelength in an alignment beam. Semiconductor layer 64 separates passes the longer wavelength but reflects and/or absorbs the alignment beam of shorter wavelength. Layer 64 thus effectively optically decouples stacks 46 and 66. Each of the layers in the longer wave first reflecting stack 46 is of an optical thickness equal to an odd number of quarter wavelengths of the principal beam. The semiconductor layer 64 and the shorter wavelength reflecting an optical thickness equal to an even number of quarter wavelengths of the principal beam.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile