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:
Aug. 23, 2016
Filed:
Mar. 28, 2012
Günther Leising, Graz, AT;
Günther Leising, Graz, AT;
TRIDONIC OPTOELECTRONICS GMBH, Jennersdorf, AT;
Abstract
For the production of a white LED having a predetermined color temperature, a blue LED (-) or a UV LED is coated with a conversion layer () which absorbs the blue light or UV light and emits light of greater wavelength. In accordance with the invention, the exact wavelength of the LED (-) is determined and the color conversion agent () is applied over this LED (-) in a quantity dependent upon the determined wavelength. Through this, the tolerance of the color temperature can be significantly reduced. The color conversion agent may be applied by means of dispenser or stamp, and the quantity and/or concentration selected in dependence upon the determined wavelength. Inkjet printing, deposition from the gas phase or selective removal by means of a laser is, however, also possible. The invention also relates to light sources produced in accordance with this method.