Patent ID: 9013527
Filing Date: 2015-04-21
Classification: G02B,G03G

Abstract:
1. A light-emitting component comprising: a plurality of transfer thyristors, each configured with a semiconductor layer stack in which a first semiconductor layer of a first conduction type, a second semiconductor layer of a second conduction type, which is different from the first conduction type, a third semiconductor layer of the first conduction type and a fourth semiconductor layer of the second conduction type are laminated in order, each of the plurality of transfer thyristors shifting to an ON state in order; a plurality of coupling transistors, each configured with the first semiconductor layer, the second semiconductor layer and the third semiconductor layer in the semiconductor layer stack, provided to couple a former transfer thyristor and a latter transfer thyristor that are adjacent in the order of transferring the ON state in the plurality of transfer thyristors, and setting the latter transfer thyristor in a condition capable of shifting to the ON state by causing the coupling transistor itself to be in the ON state affected by the former transfer thyristor shifting to the ON state, the first semiconductor layer and the second semiconductor layer of each coupling transistor being continued to the first semiconductor layer and the second semiconductor layer of the former transfer thyristor; a plurality of first resistances, each provided between the third semiconductor layer of each of the plurality of transfer thyristors and a wiring for power supply; a second resistance provided on an end portion of a wiring that is commonly connected to the fourth semiconductor layer of each of the plurality of transfer thyristors for supplying a potential to set the transfer thyristor in the ON state, a resistance value of the second resistance being smaller than a product of a resistance value the first resistance and a ratio of a collector current of one of the plurality of coupling transistors connected subsequent to one of the plurality of transfer thyristors that is in the ON state to a cathode current of the transfer thyristor in the ON state; and a plurality of light-emitting thyristors, each configured with the semiconductor layer stack, being set in a light-enabled state corresponding to one of the plurality of transfer thyristors that is in the ON state, and emitting light of a predetermined wavelength by shifting from an OFF state to the ON state.