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:
May. 17, 2016
Filed:
Sep. 12, 2011
Paul Crump, Berlin, DE;
Goetz Erbert, Loebau, DE;
Hans Wenzel, Berlin, DE;
Forschungsverbund Berlin E.V., Berlin, DE;
Abstract
It is the object of the present invention to specify a light source with high efficiency and high eye safety at the same time. For this purpose, the active layer (), the first cladding layer (), the first waveguide layer (), the second waveguide layer (), and the second cladding layer () should be designed such that 0.01 μm≦d≦1.0 μm and Δn≧0.04, where dis the sum total of the layer thickness of the first waveguide layer (), the layer thickness of the active layer (), and the layer thickness of the second waveguide layer () and Δn is a maximum of the refractive index difference between the first cladding layer () and the first waveguide layer () and the refractive index difference between the second waveguide layer () and the second cladding layer ().