| Patent application number | Description | Published |
|---|
| 20110272725 | WAVELENGTH CONVERTING MEMBER, LIGHT-EMITTING DEVICE, AND METHOD FOR MANUFACTURING WAVELENGTH CONVERTING MEMBER - A polycrystalline sintered ceramic including (A) a garnet phase and (B) a perovskite, monoclinic or silicate phase wherein fine grains of phase (B) are included and dispersed in phase (A) is used as a wavelength converting member. Since the light transmitting through the wavelength converting member is scattered at the interface between the garnet phase and the perovskite, monoclinic or silicate phase, a light emitting device including the wavelength converting member produces light of more uniform color with a minimized loss thereof. | 11-10-2011 |
| 20110305005 | PHOSPHOR PARTICLES, LIGHT-EMITTING DIODE, AND ILLUMINATING DEVICE AND LIQUID CRYSTAL PANEL BACKLIGHT DEVICE USING THEM - Phosphor particles of generally spherical shape have an average particle diameter of 5-50 μm and an average roundness of up to 0.3. The phosphor includes a garnet phase having formula: (A | 12-15-2011 |
| 20120175559 | PHOSPHOR PARTICLES AND MAKING METHOD - Phosphor particles are provided in the form of spherical polycrystalline secondary particles consisting of a multiplicity of primary particles, including a garnet phase having the composition: (A | 07-12-2012 |
| 20120175658 | PHOSPHOR PARTICLES, MAKING METHOD, AND LIGHT-EMITTING DIODE - Phosphor particles are provided in the form of spherical polycrystalline secondary particles consisting of a multiplicity of primary particles, including a garnet phase having the compositional formula: (A | 07-12-2012 |
| 20130161849 | PREPARATION OF YTTRIUM-CERIUM-ALUMINUM GARNET PHOSPHOR - A yttrium-cerium-aluminum garnet phosphor is prepared by mixing yttrium, cerium and aluminum compounds to form a raw material in which the Ce concentration is 4-15 mol % based on the sum of Y and Ce, and a molar ratio of Al to the sum of Y and Ce is 5/3 to 5.5/3, granulating the raw material into particles with an average particle size of 5-100 μm, melting the particles in a high-temperature plasma, and heat treating the resulting particles in a non-oxidizing atmosphere for crystallization. | 06-27-2013 |
| 20140175968 | YTTRIUM-CERIUM-ALUMINUM GARNET PHOSPHOR AND LIGHT-EMITTING DEVICE - In a yttrium-cerium-aluminum garnet phosphor having a crystallographic texture, nanocrystalline grains having a grain size of 5-20 nm and containing cerium in a higher concentration than the matrix phase are dispersed in the crystallographic texture. The emission color of the phosphor is shifted to the longer wavelength side. The phosphor can maintain its satisfactory emission performance even at high temperature. | 06-26-2014 |
| 20140369022 | LIGHT-EMITTING DEVICE - A light-emitting device is provided comprising an excitation light source capable of emitting laser light and a phosphor adapted to convert the wavelength of the laser light and to generate light of converted wavelength. The phosphor is polycrystalline secondary particles each consisting of a plurality of primary particles and containing therein pores with a diameter of 0.2-25 μm. The device produces light of quality in that the speckle noise that gives a glare or strange sense to eyesight when the light is illuminated to a rough surface is reduced. | 12-18-2014 |
| 20140376229 | OUTDOOR LUMINAIRE - An outdoor luminaire comprising a blue LED chip having a maximum peak at a wavelength of 420-480 nm and a phosphor layer disposed forward of the LED chip in its emission direction is provided. The phosphor layer comprises a phosphor of the formula: Lu | 12-25-2014 |
| 20150085467 | RED LAMP AND VEHICLE LIGHTING FIXTURE - A red lamp is provided comprising a blue LED array and a red emissive member. The red emissive member is made of a resin having dispersed therein a phosphor capable of absorbing blue light and emitting red light, the phosphor being selected from among silicate, SiAlON, silicon nitride, sulfide, and garnet structure phosphors. The red lamp offers high efficiency, high light intensity, and improved visibility both in front and lateral directions and is thus suited for use in vehicle lighting fixtures such as red rear position lamps and red stop lamps. | 03-26-2015 |
