Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Other

Matsushita Electric Works, Ltd.

Everlight Electronics Co., Ltd.

Tadashi Yano

Masanori Shimizu

Nobuyuki Matsui

Tatsumi Setomoto

Tetsushi Tamura

Kenjiro Hashimoto

Kiyoshi Takahashi

Makoto Inohara

Manabu Inoue

Akira Inoue

Toshiya Yokogawa

Atsushi Yamada

Toshifumi Ogata

Masaki Fujikane

Noriyasu Tanimoto

Mitsuaki Oya

Katsushige Amano

Yoshinori Tanabe

Yukio Akashi

Wataru Iwai

Hiroki Noguchi

Takefumi Inoue

Shozo Watanabe

Syouetsu Sakamoto

Hiromitsu Kobayashi

An illuminating device according to the present invention includes at least a first nitride-based semiconductor light-emitting element and a second nitride-based semiconductor light-emitting element, in which: the first nitride-based semiconductor light-emitting element and the second nitride-based semiconductor light-emitting element each include a semiconductor chip; the semiconductor chip includes a nitride-based semiconductor multilayer structureformed from an AlInGaN (x+y+z=1, x&#x2267;0, y&#x2267;0, z&#x2267;0) semiconductor, and the nitride-based semiconductor multilayer structureincludes an active layer regionhaving an m-plane as an interface; the first nitride-based semiconductor light-emitting element and the second nitride-based semiconductor light-emitting element each emit polarized light from the active layer region; and, when the polarized light emitted from the first nitride-based semiconductor light-emitting element and the polarized light emitted from the second nitride-based semiconductor light-emitting element have wavelengths &#x3bb;and &#x3bb;, respectively, and thicknesses of the semiconductor chipsof the first nitride-based semiconductor light-emitting element and the second nitride-based semiconductor light-emitting element are given as dand d, respectively, the following relations are satisfied: &#x3bb;and d&#x3c;d

Nitride semiconductor light-emitting element, illuminating device, liquid crystal display device, method for producing nitride semiconductor light-emitting element and method for manufacturing illuminating device

An illuminating device includes at least first and second nitride-based semiconductor light-emitting elements each having a semiconductor chip with an active layer region. The active layer region is at an angle of 1&#xb0; or more with an m plane, and an angle formed by a normal line of a principal surface in the active layer region and a normal line of the m plane is 1&#xb0; or more and 5&#xb0; or less. The first and second nitride-based semiconductor light-emitting elements have thicknesses of dand d, respectively, and emit the polarized light having wavelengths &#x3bb;and &#x3bb;, respectively, where the inequalities of &#x3bb;and d&#x3c;dare satisfied.

Nitride-based semiconductor light-emitting element, lighting device, liquid crystal display device, and method for producing lighting device

An LED lampincludes: an LED chip; a phosphor resin portionthat covers the LED chip; and a light-transmissive memberthat covers the phosphor resin portion. The phosphor resin portionincludes: a phosphor for converting the emission of the LED chipinto light that has a longer wavelength than the emission; and a resin in which the phosphor is dispersed. The surface of the light-transmissive memberincludes an upper surface portionlocated over the LED chipand a side surface portionlocated around and below the upper surface portion. At least a part (low-transmittance part) of the side surface portionof the light-transmissive memberhas lower transmittance than the upper surface portion

LED lamp

An LED lamp according to the present invention includes: at least one LED chipthat is mounted on a substratea phosphor resin portionthat covers the LED chipa lensto act on the outgoing light of the phosphor resin portionand an optical diffusion layer (light-transmissive resin portion), which is arranged between the phosphor resin portionand the lensand in which particles to scatter the light are dispersed.

LED lamp provided with optical diffusion layer having increased thickness and method of manufacturing thereof

An LED lamp includes at least one LED chip mounted on the principal surface of a substrate and an optical wavelength converting portion, which includes a phosphor for converting the emission of the LED chip into light having a longer wavelength than that of the emission and which covers at least a portion of the LED chip. The side surface of the optical wavelength converting portion has at least one concave curved surface portion.

LED lamp and method for manufacturing the same

An LED illumination apparatus according to the present invention includes at least one connector and a lighting drive circuit. The connector is connected to an insertable and removable card-type LED illumination source, which includes multiple LEDs that have been mounted on one surface of a substrate. The lighting drive circuit is electrically connected to the card-type LED illumination source by way of the connector. The card-type LED illumination source preferably includes a metal base substrate and the multiple LEDs that have been mounted on one surface of the metal base substrate. The back surface of the metal base substrate, including no LEDs thereon, thermally contacts with a portion of the illumination apparatus. A feeder terminal to be electrically connected to the connector is provided on the surface of the metal base substrate on which the LEDs are provided.

LED illumination apparatus and card-type LED illumination source

An LED lamp includes a substrate, an LED chip, and a resin portion. The LED chip is flip-chip bonded to the substrate. The resin portion covers the LED chip and includes at least one type of phosphor that transforms the emission of the LED chip into light having a longer wavelength than the emission. In this LED lamp, the resin portion has at least one side surface. The side surface is separated from another surface that can reflect the outgoing light of the resin portion, surrounds the side surfaces of the LED chip and is curved at least partially.

An LED illumination apparatus includes at least one connector and a lighting drive circuit. The connector is connected to an insertable and removable card-type LED illumination source, which includes multiple LEDs that have been mounted on one surface of a substrate. The lighting drive circuit is electrically connected to the card-type LED illumination source by way of the connector. The card-type LED illumination source preferably includes a metal base substrate and the multiple LEDs that have been mounted on one surface of the metal base substrate. The back surface of the metal base substrate, including no LEDs thereon, thermally contacts with a portion of the illumination apparatus. A feeder terminal to be electrically connected to the connector is provided on the surface of the metal base substrate on which the LEDs are provided.

Card-type LED illumination source

An LED illumination source comprises a heat dissipating substrate which includes a metal plate and at least two insulating layers thereon. LEI) bare chips are mounted on a surface of the substrate. An optical reflector with holes surrounds the LED bare chips. The optical reflector is provided on the surface of the substrate on which the LED bare chips are mounted. A resin encapsulates the entire optical reflector on the substrate, the resin molding each of the LED bare chips and functioning as an optical lens for each of the LED bare chips.

Card type LED illumination source

According to the present invention, a substrate, a cluster of LED chips, which are arranged two-dimensionally on the substrate, and a plurality of phosphor resin portionsthat cover the respective LED chips are provided. The phosphor resin portionincludes a phosphor for transforming the emission of its associated LED chip into a light ray having a longer wavelength than that of the emission. A size of the phosphor resin portions, which cover the LED chips located in an outer region of the cluster, is set bigger than that of the other phosphor resin portions, which cover the LED chips located in the remaining non-outer region.

LED Lamp

An LED lamp includes: a substrate; a cluster of LEDs, which are arranged two-dimensionally on the substrate; and an interconnection circuit, which is electrically connected to the LEDs. The LEDs include a first group of LEDs, which are located around the outer periphery of the cluster, and a second group of LEDs, which are located elsewhere in the cluster. The interconnection circuit has an interconnection structure for separately supplying drive currents to at least one of the LEDs in the first group and to at least one of the LEDs in the second group separately from each other.

An LED illumination source is disclosed. The illumination source includes a metal base substrate including a line pattern and an insulating layer including a composite material with an inorganic filler and a resin composition. LED bare chips are mounted on one surface of the metal base substrate An optical reflector with holes to surround the bare chips is provided on the surface of the metal base substrate on which the LED bare chips are mounted. Stress relaxing means is provided between the metal base substrate and the optical reflector.

Disclosed is a respiration leading system which can leads a living body to respire so that relaxation is effectively induced without any physiological load even if a respiration exercise feedback is not employed. This system comprises a control unit and a sense-stimulating unit. The control unit makes the sense-stimulating unit change the output energy for stimulating a sense of the living body so that the living body is induced to inhale and exhale as a physiological reaction. The energy change is done within the range of a respiration period x(sec) and a parameter y defined as 2 sec&#x3c;x&#x3c;12 sec and 0.85&#x3c;y&#x3c;1.45 (a region x&#x2266;4 sec and y&#x2267;1.3 is excluded). The parameter y is a ratio of exhaling time to inhaling time. The energy output in the first half period corresponding to either inhaling or exhaling and the energy output in the latter half corresponding to the other, induce the living body to respire.

Growing community of inventors

Kyoto, Japan

Tadashi Yano