Light emitting device having a pseudo-continuous spectrum...

Details Light emitting device having a pseudo-continuous spectrum... Light emitting device having a pseudo-continuous spectrum...

2006-04-11

2006-04-11

Wilczewski, Mary (Department: 2822)

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

C257S089000, C257S094000, C257S096000

Reexamination Certificate

active

07026651

ABSTRACT:
A light emitting device capable of readily produce a pseudo-continuous spectrum covering a wide wavelength regions at low costs, and of totally solving various problems which have resided in the conventional light sources, and a lighting apparatus using this device is provided. The light emitting device10is configured so that an active layer in a double hetero light emitting layer portion composed of compound semiconductors comprises a plurality of emission unit layers differing from each other in band gap energy, and so as to emit a simulatively synthesized light having a pseudo-continuous spectrum ensuring an emission intensity of 5% or more of a peak intensity over a wavelength region of 50 nm or more.

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patent: 2002-176198 (2002-06-01), None

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