LIGHT SOURCE MODULE AND IMAGE PROJECTION DEVICE
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Apr 24, 2015
filing date -
Apr 25, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A light source module and an image projection device which can have high resolution and high optical efficiency are provided with a simple optical system. A light source module includes a light source unit formed by a plurality of stacked light emission surfaces which emit lights of at least red, blue, and green wavelength bands, and a light-source drive and control unit which supplies a driving current to the respective light emission surfaces of the light source unit. Each of the light emission surfaces of the light source unit has a nanostructure smaller than a wavelength of visible light near a p-n junction provided in a semiconductor having a larger band gap than the visible light, and emits a light of a corresponding one of the wavelength bands via a phonon level.
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