| 摘要 |
Disclosed is a method for producing a white LED having a given color temperature, according to which a blue LED (2a-2d) or a UV LED is coated with a conversion layer (5) that absorbs blue light or UV light while emitting light having a greater wavelength. According to the inventive method, the exact wavelength of the LED (2a-2d) is determined and the color converting means (5) is applied above said LED (2a-2d) at a quantity that depends on the determined wavelength, whereby the tolerance of the color temperature can be significantly reduced. The color converting means can be applied with the aid of a dispenser or a stamp while the quantity and/or the concentration can be selected according to the determined wavelength. Other options include inkjet printing, gas phase deposition, or selective removal with the aid of a laser. The invention further relates to light sources produced according to said method. |
