Patent application number | Description | Published |
20080218060 | PHOSPHOR, LIGHT EMITTING DEVICE USING PHOSPHOR, AND DISPLAY AND LIGHTING SYSTEM USING LIGHT EMITTING DEVICE - A phosphor (A) comprising a host material composed of a compound having a garnet crystal structure represented by the general formula (I): | 09-11-2008 |
20100213817 | FLUORESCENT MATERIAL, FLUORESCENT DEVICE USING THE SAME, AND IMAGE DISPLAY DEVICE AND LIGHTING EQUIPMENT - To present a green- to yellow-emitting phosphor whereby a light-emitting device having high color rendering properties and high luminance can be obtained, a light-emitting device employing such a phosphor, and an image display device and a lighting system, containing such a light-emitting device. | 08-26-2010 |
20100283383 | PHOSPHOR, LIGHT EMITTING DEVICE USING PHOSPHOR, AND DISPLAY AND LIGHTING SYSTEM USING LIGHT EMITTING DEVICE - A phosphor (A) comprising a host material composed of a compound having a garnet crystal structure represented by the general formula (I): | 11-11-2010 |
20120007115 | PHOSPHOR, LIGHT-EMITTING DEVICE USING SAME, IMAGE DISPLAY AND ILLUMINATING DEVICE - The present invention relates to a phosphor represented by the following general formula (I), comprising: a composite oxide containing a divalent and trivalent metal elements as a host crystal; and at least Ce as an activator element in said host crystal, wherein the phosphor has a maximum emission peak in a wavelength range of from 485 nm to 555 nm in the emission spectrum at room temperature: | 01-12-2012 |
20120267997 | LIGHT-EMITTING DEVICE, WHITE LIGHT-EMITTING DEVICE, ILLUMINATOR, AND IMAGE DISPLAY - To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x | 10-25-2012 |
Patent application number | Description | Published |
20080290786 | Light Emitting Device, and Lighting System, Image Display Using the Same - To enhance luminance and color rendering of a light emitting device comprising phosphors as wavelength converting material and at least one semiconductor light emitting device that emits visible light, as said phosphors, are used phosphors which are one or more kinds of phosphors selected from a group consisting of oxides, oxynitrides and nitrides, and are a mixture consisting of two or more kinds of phosphors whose luminous efficiency is 35% or higher when excited by the visible light from said semiconductor light emitting device at room temperature. In addition, said mixture contains a first phosphor, and a second phosphor that is different from said first phosphor and capable of absorbing emitted light from said first phosphor, and said first phosphor is contained 85 weight % or more of said mixture of phosphors. | 11-27-2008 |
20090026920 | Phosphor, light-emitting device using same, image display and illuminating device - The present invention relates to a phosphor represented by the following general formula (I), comprising: a composite oxide containing a divalent and trivalent metal elements as a host crystal; and at least Ce as an activator element in said host crystal, wherein the phosphor has a maximum emission peak in a wavelength range of from 485 nm to 555 nm in the emission spectrum at room temperature: | 01-29-2009 |
20090072255 | PHOSPHOR AND LIGHT-EMITTING DEVICE USING SAME - The present invention relates to a phosphor that satisfies requirements (1) to (3):
| 03-19-2009 |
20090140630 | LIGHT-EMITTING DEVICE, WHITE LIGHT-EMITTING DEVICE, ILLUMINATOR, AND IMAGE DISPLAY - To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x | 06-04-2009 |
20090243467 | PHOSPHOR AND PRODUCTION METHOD THEREOF, AND PHOSPHOR-CONTAINING COMPOSITION, LIGHT EMITTING DEVICE, IMAGE DISPLAY AND LIGHTING SYSTEM - To provide a phosphor having nearly spherical shapes, the phosphor has an elemental ratio represented by the formula below, and contains at least two kinds of Li, Na, K, Rb, Cs, P, Cl, F, Br, I, Zn, Ga, Ge, In, Sn, Ag, Au, Pb, Cd, Bi and Ti. | 10-01-2009 |
20110181175 | LIGHT-EMITTING DEVICE, AND LIGHTING SYSTEM, AND IMAGE DISPLAY USING SAME - To enhance luminance and color rendering of a light emitting device comprising phosphors as wavelength converting material and | 07-28-2011 |
20130200779 | LIGHT-EMITTING DEVICE, AND LIGHTING SYSTEM, AND IMAGE DISPLAY USING SAME - To enhance luminance and color rendering of a light emitting device comprising phosphors as wavelength converting material and at least one semiconductor light emitting device that emits visible light, as said phosphors, are used phosphors which are one or more kinds of phosphors selected from a group consisting of oxides, oxynitrides and nitrides, and are a mixture consisting of two or more kinds of phosphors whose luminous efficiency is 35% or higher when excited by the visible light from said semiconductor light emitting device at room temperature. In addition, said mixture contains a first phosphor, and a second phosphor that is different from said first phosphor and capable of absorbing emitted light from said first phosphor, and said first phosphor is contained 85 weight % or more of said mixture of phosphors. | 08-08-2013 |