Patent application number | Description | Published |
20100091215 | SEMICONDUCTOR LIGHT-EMITTING DEVICE AS WELL AS IMAGE DISPLAY AND LIQUID CRYSTAL DISPLAY EMPLOYING THE SAME - The present invention relates to a semiconductor light-emitting device including a semiconductor light-emitting element emitting excitation light, a green phosphor and a red phosphor and including an Mn | 04-15-2010 |
20120032578 | LIGHT EMITTING APPARATUS AND METHOD FOR MANUFACTURING THEREOF - A light emitting apparatus includes a light emitting device emitting primary light and a wavelength conversion unit absorbing a part of the primary light to emit secondary light. The wavelength conversion unit includes a first wavelength conversion unit containing at least a nanocrystalline phosphor and a second wavelength conversion unit containing a rare-earth-activated phosphor or a transition-metal-element-activated phosphor. In the light emitting device, the first wavelength conversion unit and the second wavelength conversion unit are closely stacked in order. | 02-09-2012 |
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 |
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 |