Abstract: A light emitting device has a substrate, a plurality of first light emitting elements, each of which is mounted on the substrate, has a first LED die, and emits light having a first wavelength, a first light transmitting layer arranged so as to cover the plurality of first light emitting elements, the first light transmitting layer transmitting light emitted from the plurality of first light emitting elements, a second light transmitting layer arranged so as to cover the first light transmitting layer, the second light transmitting layer transmitting light that has transmitted through the first light transmitting layer, and a reflector having an upwardly bulging curved surface at an upper portion of an inner wall that the first light transmitting layer and the second light transmitting layer contact, the reflector being arranged on the substrate so as to surround the plurality of first light emitting elements and reflecting light emitted from the first light emitting elements, wherein the thickness T between

Abstract: A light emitting device has a substrate having a rectangular planar shape, one or a plurality of light emitting elements mounted on the substrate, a dam resin having a frame-like planar shape, arranged so as to surround the light emitting element, and having an inclined surface whose height increases as its distance from the light emitting element increases, and a seal resin arranged in an area surrounded by the dam resin and which seals the light emitting element, and the dam resin has a protruding portion extending and protruding from at least one side toward the opposite side.

Abstract: A linear light-emitting device including a substrate extending while being curved in a predetermined direction, a plurality of light-emitting elements arranged on the substrate in a predetermined direction, and a seal for sealing the plurality of light-emitting elements, wherein a luminance of a specific part of the substrate is higher than that of the other parts of the substrate.

Abstract: A light emitting device includes a substrate, a plurality of first light emitting elements mounted on the substrate, including first LED dies, and emitting light having a first wavelength, and a light guide layer arranged so as to cover the plurality of first light emitting elements, and guiding the light from the plurality of first light emitting elements, wherein when LG1 is a distance between the first LED dies, and ?c is a critical angle of the light emitted from the light guide layer to the air, and a thickness T between the upper surfaces of the first light emitting elements and the upper surface of the light guide layer is equal to or longer than T1 indicated by T1=LG1/(2tan ?c).

Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a first phosphor sheet containing a first phosphor and a third phosphor, and covering a top face of the first light emitting element, and a second phosphor sheet containing a second phosphor and a fourth phosphor, and covering a top face of the second light emitting element, wherein a peak wavelength of light which is wavelength-converted by the first phosphor or the third phosphor is equal to or less than a peak wavelength of light which is wavelength-converted by the second phosphor or the fourth phosphor.

Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a first phosphor sheet containing a first phosphor and a third phosphor, and covering a top face of the first light emitting element, and a second phosphor sheet containing a second phosphor and a fourth phosphor, and covering a top face of the second light emitting element, wherein a peak wavelength of light which is wavelength-converted by the first phosphor or the third phosphor is equal to or less than a peak wavelength of light which is wavelength-converted by the second phosphor or the fourth phosphor.

Abstract: The present invention addresses an illumination system and an illumination method which make a space including a display item illuminated with VIVID lighting where Duv is greatly deviated negatively from zero not perceived as pale pinkish, and the issue is solved by an illumination system for illuminating a space where a display item is displayed, wherein the illumination system comprises a first light-emitting device mainly illuminating the display item and satisfying the predetermined conditions, and a second light-emitting device mainly illuminating a space other than the display item and satisfying the predetermined conditions.

Abstract: A light-emitting device and a manufacturing method thereof are provided, which device yields light exhibiting an actual hue with a deviation reduced as much as possible from a designed hue value, the light being a mixture of light emitted from a plurality of light-emitting elements mounted densely and excited light from a phosphor contained in a resin sealing the light-emitting elements. The light-emitting device includes a board, a plurality of light-emitting elements mounted densely on the board, a first resin free from any phosphor, placed among the plurality of light-emitting elements, and a second resin containing a phosphor and covering an exposed part of the plurality of light-emitting elements.

Abstract: A light-emitting device is provided whose color mixing property and light emission efficiency are improved, while white light with high color rendering performance is ensured by means of four kinds of LED elements emitting red, green, blue, and white light respectively.

Abstract: Provided is a light-emitting apparatus including a substrate, a plurality of light-emitting units each having a plurality of LED elements mounted on the substrate in a rectangular lattice pattern, wherein each of the light-emitting units has a rectangular light-emitting region, and a lens array including a plurality of lenses provided corresponding to the light-emitting units, respectively, the lens array being arranged on the plurality of light-emitting units, wherein the plurality of lenses is designed such that beams of emission light from the plurality of light-emitting units are collected and radiated so as to overlap with one another at a position distant from the substrate, and a part of the plurality of light-emitting units is arranged to be inclined with respect to a reference direction in a plane of the substrate by an angle different from that of other light-emitting units.

Abstract: Provided is a light-emitting device in which a light-emitting region is increased in size without decreasing the yield. This light-emitting device includes a central light-emitting unit, and a plurality of peripheral light-emitting units arranged to fill a periphery of the central light-emitting unit, wherein each of the central light-emitting unit and the peripheral light-emitting units includes a substrate and light-emitting elements mounted on the substrate, and an area of the light-emitting region of each of the peripheral light-emitting units is equal to or smaller than an area of the light-emitting region of the central light-emitting unit.

Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a first phosphor sheet containing a first phosphor and a third phosphor, and covering a top face of the first light emitting element, and a second phosphor sheet containing a second phosphor and a fourth phosphor, and covering a top face of the second light emitting element, wherein a peak wavelength of light which is wavelength-converted by the first phosphor or the third phosphor is equal to or less than a peak wavelength of light which is wavelength-converted by the second phosphor or the fourth phosphor.

Abstract: A light-emitting apparatus according to the present invention has a packaging substrate having a packaging area, a plurality of light-emitting elements packaged in the packaging area, and a sealing resin that seals the plurality of light-emitting elements. The plurality of light-emitting elements includes light-emitting elements packaged in a first packaging area including the center of the packaging area and light-emitting elements packaged in a second packaging area surrounding the perimeter of the first packaging area. The packaging density of the light-emitting elements packaged in the first packaging area is higher than the packaging density of the light-emitting elements packaged in the second packaging area.

Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a first phosphor sheet containing a first phosphor and a third phosphor, and covering a top face of the first light emitting element, and a second phosphor sheet containing a second phosphor and a fourth phosphor, and covering a top face of the second light emitting element, wherein a peak wavelength of light which is wavelength-converted by the first phosphor or the third phosphor is equal to or less than a peak wavelength of light which is wavelength-converted by the second phosphor or the fourth phosphor.

Abstract: Provided is an LED drive circuit whereby the light emission color is easily changed when dimming by adjusting the current that drives the LED. The LED drive circuit has: a variable constant current source; a first LED row having a plurality of LEDs connected in series and emitting light in a first light emission color; a second LED row having a plurality of LEDs connected in series and emitting light in a second light emission color; and a current limiting circuit including a current detection element and a switch element. The LED drive circuit is characterized by: the threshold voltage for the first LED row being larger than the threshold voltage for the second LED row; the first LED row and the second LED row being connected in parallel to the variable constant current source; and the current limiting circuit limiting the current flowing to the second LED row, on the basis of the current flowing to the current detection element via the first LED row.

Abstract: Provided is an LED device presenting minimal risk of bottom-surface contamination even when foreign substances such as liquids adhere thereto. The LED device has an LED die, a submount substrate on the surface of which the LED die is mounted, a frame-shaped electrode disposed along the outer circumferential part of the bottom surface of the submount substrate, and an inner-side electrode surrounded by the frame-shaped electrode and connected to the electrode of the LED die. In the LED device, the frame-shaped electrode is disposed along the entire outer circumferential part of the bottom surface. In an LED device, the bottom surface is rectangular, and the frame-shaped electrode is disposed along three sides of the bottom surface.

Abstract: An LED package used in a light-emitting device is provided with a function of position correction in mounting by self-alignment, and mounting density of such LED packages is increased. The LED package includes an LED element including an element electrode on a bottom surface, a phosphor layer containing a phosphor and covering a top surface and a side surface of the LED element, and an auxiliary electrode having an upper face bonded to a lower face of the element electrode, wherein the auxiliary electrode is larger than the element electrode, the auxiliary electrode includes a step that makes a lower face smaller than the upper face, and an end portion of the auxiliary electrode on a side where the step is formed is located inside an outer peripheral side of the phosphor layer.