Optical diodes ( light emitting diodes emit light ) and standard diodes core difference

I found that the core of the diodes and the LEDs are the same, but the coating material of the LEDs is clear and the coating material of the diodes is opaque. Is this true?please just say me with yes or no or with shape because my first language is not english And I hardly understand thanks a lot.

by RezaJ1992
July 10, 2020

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