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. 05, 2012
Filed:
Aug. 18, 2009
Catherine A. Leatherdale, Woodbury, MN (US);
Michael A. Haase, St. Paul, MN (US);
Todd A. Ballen, St. Paul, MN (US);
Catherine A. Leatherdale, Woodbury, MN (US);
Michael A. Haase, St. Paul, MN (US);
Todd A. Ballen, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Light emitting systems are disclosed. The light emitting system includes an LED that emits light at a first wave-length. A primary portion of the emitted first wavelength light exits the LED from a top surface of the LED that has a minimum lateral dimension Wmin. The remaining portion of the emitted first wavelength light exits the LED from one or more sides of the LED that has a maximum edge thickness Tmax (). The ratio Wmin/Tmax is at least 30. The light emitting system further includes a re-emitting semiconductor construction that includes a semiconductor potential well. The re-emitting semiconductor construction receives the first wavelength light that exits the LED from the top surface and converts at least a portion of the received light to light of a second wavelength. The integrated emission intensity of all light at the second wavelength that exit the light emitting system is at least 4 times the integrated emission intensity of all light at the first wavelength that exit the light emitting system.