Patent
Light emitting apparatus
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TLDR
A light emitting apparatus has: a light emitting element of nitride semiconductor; a phosphor that absorbs light emitted from the light-emitting element and emits light with a wavelength different from that of the absorbed light; a first reflection mirror that reflects the light emitted by the LEM element to converge the light; and a second reflection mirror having a light passing hole at a position on which the light reflected on the first mirror is converged and that has a reflection surface on the side opposite to the side facing the first reflecting mirror as mentioned in this paper.Abstract:
A light emitting apparatus has: a light emitting element of nitride semiconductor; a phosphor that absorbs light emitted from the light emitting element and emits light with a wavelength different from that of the absorbed light; a first reflection mirror that reflects the light emitted from the light emitting element to converge the light; a second reflection mirror that has a light passing hole at a position on which the light reflected on the first reflection mirror is converged and that has a reflection surface on the side opposite to the side facing the first reflection mirror; and a phosphor layer that includes the phosphor, the phosphor layer being placed over the light passing hole and at a specific region in transparent resin that part of light passing through the light passing hole is radiated.read more
Citations
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TL;DR: In this article, a semiconductor light emitting device comprising a light emitting layer disposed between an n-type region and a p-type regions is combined with a ceramic layer which is disposed in a path of light emitted by the light-emitting layer.
References
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Patent
Multiple encapsulation of phosphor-LED devices
TL;DR: In this article, a semiconductor device has a light-emitting diode covered by a transparent spacer which separates the LED from a uniformly thick fluorescent material containing layer such that there is a more uniform lighting of the fluorescent material to provide a uniform white light.
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Uv/blue led-phosphor device with efficient conversion of uv/blue light to visible light
TL;DR: In this paper, a light emitting device for use in lighting and/or display applications includes a UV/blue LED located in a depression having reflecting sidewalls, a light transmitting material surrounding the LED and filling the depression, and a phosphor in the form of particles either dispersed in the light transmission material or adhered to the surface of the LED.
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Honjiyou Tomoiku,Aranami Junji +1 more
TL;DR: In this article, a light-emitting diode comprising a semiconductor layer 2 which is made of a GaAs compound semiconductor and has a pn junction therein on the upper surface of a single crystal substrate was presented.
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