Patent application number | Description | Published |
20100176713 | PHOSPHOR PARTICLE GROUP AND LIGHT EMITTING APPARATUS USING THE SAME - Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON substantially represented by a general formula: EuaSibAlcOdNe, where 0.0055≦a≦0.4, b+c=12, d+e=16, wherein 60% or more of the phosphor particle group is composed of the phosphor particles in which a value obtained by dividing a longer particle diameter by a shorter particle diameter is greater than 1.0 and not greater than 3.0. A high-efficiency and stable light emitting apparatus using a β-type SiAlON, which includes a light converter using the phosphor particle group, and a phosphor particle group therefor are also provided. | 07-15-2010 |
20100181580 | LIGHT EMITTING APPARATUS - A light emitting apparatus including a light emitting element of a gallium nitride based semiconductor and a light converter absorbing a part of primary light emitted from the light emitting element to emit secondary light with a longer wavelength than the primary light, the light converter includes, as a red light emitting phosphor, divalent europium activated nitride red light emitting phosphor substantially represented by (MI | 07-22-2010 |
20110043101 | LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device including a light-emitting element emitting primary light, and a light converter absorbing a part of the primary light emitted from the light-emitting element and emitting secondary light having a longer wavelength than the primary light. The light converter contains a green light-emitting phosphor and a red light-emitting phosphor. The green light-emitting phosphor is composed of at least one phosphor selected from a divalent europium-activated oxynitride phosphor substantially represented by the following formula: Eu | 02-24-2011 |
20130214311 | LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device ( | 08-22-2013 |
20140184056 | PHOSPHOR PARTICLE GROUP AND LIGHT EMITTING APPARATUS USING THE SAME - Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON substantially represented by a general formula: EuaSibAlcOdNe, where 0.005≦a≦0.4, b+c=12, d+e=16, wherein 60% or more of the phosphor particle group is composed of the phosphor particles in which a value obtained by dividing a longer particle diameter by a shorter particle diameter is greater than 1.0 and not greater than 3.0. A high-efficiency and stable light emitting apparatus using a β-type SiAlON, which includes a light converter using the phosphor particle group, and a phosphor particle group therefor are also provided. | 07-03-2014 |
20140361332 | LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device ( | 12-11-2014 |
20150144959 | LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device ( | 05-28-2015 |
20160064627 | LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device ( | 03-03-2016 |