Patent application number | Description | Published |
20120104448 | LIGHT-EMITTING DEVICE - A semiconductor light-emitting device that is high in luminous efficiency and that emits light which is high in color rendering property includes a semiconductor light-emitting element that emits blue light; a green fluorescent substance that absorbs the blue light and emits green light; and an orange fluorescent substance that absorbs the blue light and emits orange light, fluorescence emitted by the green fluorescent substance and the orange fluorescent substance having an emission spectrum that has a peak wavelength of not less than 540 nm and not more than 565 nm and that satisfies the relation of 0.70>PI(90)/PI(MAX)>0.55, where PI(MAX) represents an emission intensity at the peak wavelength, and PI(90) represents an emission intensity at a wavelength 90 nm longer than the peak wavelength. | 05-03-2012 |
20120106184 | ILLUMINATION APPARATUS AND VEHICULAR HEADLAMP - A headlamp includes a semiconductor laser for emitting laser beams having a bluish purple oscillation wavelength, a light emitting section for emitting light while being irradiated with the laser beams emitted from the semiconductor laser, and a transmission filter for shielding coherent components included in the laser beams whereas transmitting incoherent components included in the laser beams. | 05-03-2012 |
20120106186 | ILLUMINATION APPARATUS AND VEHICULAR HEADLAMP - A headlamp includes (i) a semiconductor laser for emitting laser beams, (ii) a light emitting section that includes a first fluorescent material having a peak of emission spectrum which peak falls within a range from 450 nm to 500 nm, and that emits white fluorescence while being irradiated with exciting light emitted from the semiconductor laser, and (iii) a transmission filter for shielding the laser beams and transmitting the fluorescence emitted from the light emitting section. | 05-03-2012 |
20120139409 | LIGHTING DEVICE AND VEHICLE HEADLAMP - A headlamp | 06-07-2012 |
20120162573 | LIQUID CRYSTAL DISPLAY - A liquid crystal display including a backlight and a filter, the backlight including a light-emitting device having a light-emitting element emitting blue light, and a green phosphor and a red phosphor absorbing a part of primary light emitted from the light-emitting element and emitting first secondary light and second secondary light, respectively, the green phosphor being a β-type SiAlON phosphor containing Eu and Al dissolved in a crystal of a nitride or an oxynitride having a β-type Si | 06-28-2012 |
20120319155 | LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device that exhibits good color rendering and highly efficiently emits white light in an incandescent bulb color range. The semiconductor light-emitting device ( | 12-20-2012 |
20130207146 | LIGHT-EMITTING DEVICE - There is realized a light-emitting device that emits, with high efficiency, white light with excellent color rendering index in a lamp color region. A light-emitting device ( | 08-15-2013 |
20130277698 | LIGHT-EMITTING DEVICE - There is realized a light-emitting device that emits, with high efficiency, white light with excellent color rendering index. A light-emitting device ( | 10-24-2013 |
20130285104 | SEMICONDUCTOR LIGHT-EMITTING DEVICE - Provided is a light-emitting device that has a high emission efficiency, excellent stability and temperature properties, and that generates light having a high color rendering property sufficient for practical use. This semiconductor light-emitting device ( | 10-31-2013 |
20140233209 | LIGHT EMITTING DEVICE - Provided is a light emitting device with effectively improved color rendering properties. A light emitting device | 08-21-2014 |