WHITE LIGHT OPTICAL TRANSISTOR Russian patent published in 2013 - IPC H01L33/50 

FIELD: physics.

SUBSTANCE: white light optical transistor is a semiconductor device designed to emit optical radiation based on a transistor structure with an alternating conductivity type, which forms an active region which generates a blue light. The optical transistor has a housing accommodating a chip with series-connected region with a first conductivity type, which is the emitter, a region with a second conductivity type, which is the base, and a second region with a first conductivity type, which is the collector. Each of the regions has an ohmic contact outside the housing, wherein the chip with the emitter with a reduced thickness, connected through the base to the collector, is placed in an optically transparent compound, in the top part of which a phosphor is implanted.

EFFECT: enabling control of the base current of an optical transistor and, as a result, control the current of its emitter-collector circuit, thereby controlling luminous intensity of the active region of the optical transistor, which enables to create different emission modes of the optical transistor, including stabilisation of emission at a given level.

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