| 摘要 |
A system and method for reducing wavelength variations between light emitting diodes (LEDs) is provided that determines an emission wavelength of each of a plurality of LEDs at a common drive current, and drives each of the plurality of LEDs with a respective operational drive current such that wavelength variations between the plurality of LEDs, when driven at the respective operational drive currents, is less than wavelength variations between the plurality of LEDs when driven at the common drive current. This system and method of the invention minimizes wavelength variations between LEDs, thereby allowing the use of more, and in some cases all, of the LEDs that are fabricated from a single semiconductor wafer, or multiple semiconductor wafers.
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