Patent application number | Description | Published |
20110090703 | SEMICONDUCTOR LIGHT EMITTING APPARATUS AND LIGHT SOURCE APPARATUS USING THE SAME - A semiconductor light emitting apparatus includes a solid-state light emitting device and a wavelength converter that converts primary light emitted by the solid-state light emitting device into secondary light at a loner-wavelength. The wavelength converter is an inorganic compact that includes a transparent wavelength conversion layer containing phosphor having a garnet crystal structure. The phosphor contains a constituent element group composed of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Y, La, Gd, Tb, and Lu. Part of the constituent element group is substituted by Ce | 04-21-2011 |
20120037940 | LIGHT-EMITTING DEVICE, METHOD FOR ADJUSTING OPTICAL PROPERTIES, AND METHOD FOR MANUFACTURING LIGHT-EMITTING DEVICES - Provided are a light-emitting tube and lamp that can maintain a high lamp efficiency even if the lamp power fluctuate. The light-emitting tube ( | 02-16-2012 |
20120169968 | LIGHT EMITTING DEVICE, BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY APPARATUS, AND LIGHTING APPARATUS - Provided is a light-emitting device which can reduce grainy texture, suppress color unevenness and luminance unevenness. A light-emitting device according to the present invention includes: a board; a plurality of light-emitting parts each of which includes (i) a LED chip mounted on the board and (ii) a phosphor-containing resin including a light wavelength converter and covering the LED chip. Further, the light-emitting device includes a light-guiding member provided on the board, between the light-emitting parts which are adjacent to each other. Furthermore, the light-guiding member is formed to cover part of the phosphor-containing resin. | 07-05-2012 |
20130292728 | SEMICONDUCTOR LIGHT EMITTING APPARATUS AND LIGHT SOURCE APPARATUS USING THE SAME - A semiconductor light emitting apparatus includes a solid-state light emitting device and a wavelength converter that converts primary light emitted by the solid-state light emitting device into secondary light at a loner-wavelength. The wavelength converter is an inorganic compact that includes a transparent wavelength conversion layer containing phosphor having a garnet crystal structure. The phosphor contains a constituent element group composed of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Y, La, Gd, Tb, and Lu. Part of the constituent element group is substituted by Ce | 11-07-2013 |
20140177217 | LED ILLUMINATION DEVICE AND LED LIGHT-EMISSION MODULE - An illumination device and a light-emission module suppressing a change in color temperature when light emitted from a light-emission unit passes through an optical member. The illumination device has a lighting apparatus that includes: a first light-emission part emitting light of a daylight color temperature; a second light-emission part emitting light of an incandescent lamp color temperature; and the optical member, which is disposed on an optical path of the light emitted from the light-emission parts. A correlated color temperature of the light emitted from the second light-emission part is set to 2238 K. Due to this, in a spectrum of the light emitted from the second light-emission part, a maximum intensity within a wavelength range from 400 nm to 500 nm is no greater than one-tenth of a maximum intensity within a wavelength range from 300 nm to 800 nm. | 06-26-2014 |
20140185283 | LIGHTING FIXTURE - A lighting fixture includes: a frame; a housing that is supported so as to be swingable relative to the frame about a swing axis; a first light emitting part that is provided in the housing and emits light of a first color; and a second light emitting part that is provided in the housing and emits light of a second color differing from the first color, wherein the first light emitting part and the second light emitting part are arranged in parallel to the swing axis. | 07-03-2014 |
20150049480 | LIGHT-EMITTING MODULE, AND ILLUMINATION LIGHT SOURCE AND ILLUMINATION DEVICE USING SAME - A light-emitting module includes a substrate, and elongated light-emitting units arranged in rows on the substrate. Each light-emitting unit includes an element array of light-emitting elements arranged on the substrate and a sealing member sealing the element array. The sealing member contains a wavelength converting material. When the light-emitting units are viewed from a direction that is parallel to a surface on which the plurality of light-emitting units are arranged and coincides with a row direction being a direction along which the light-emitting units are arranged in rows, two of the light-emitting units are arranged such that portions of one of the two light-emitting units nearer to the center in the row direction are visible without being obstructed by the other light-emitting unit. | 02-19-2015 |
20150098225 | LIGHTING APPARATUS - A lighting apparatus includes a substrate, a light-emitting element, and a sealing member. The light-emitting element emits light in a first wavelength range. The sealing member contains a material that converts the light in the first wavelength range to light in a second wavelength range different from the first wavelength range. The sealing member has a curved convex contour in at least one cross section that passes through the center of the light-emitting element and is perpendicular to a principal surface of the substrate. A curved line indicating a change in output angle that occurs upon a change in observation angle is approximated by a quadratic or trigonometric function that passes through the origin. | 04-09-2015 |