Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Yoshio Manabe

Ichiro Tanahashi

Toshio Mori

Tsuneo Mitsuyu

Hiroshi Yagi

Masaru Yoshida

Masaaki Hama

Hideo Nagai

Mamoru Takeda

Takaari Uemoto

Yasushige Tomiyoshi

Kenji Mukai

Atsushi Motoya

Kazuhiro Matsuo

Kenzi Takahasi

Yoshinori Ootaka

Masanori Shimizu

Hiroyuki Kado

Takao Tohda

Yoko Matsubayashi

Tsuyoshi Terada

Shogo Toda

Yasuharu Ueno

Makoto Horiuchi

Yoshinori Kakuno

Ayumu Tsujimura

Hirofumi Yamashita

Takashi Maniwa

Fumihiro Inagaki

Hideki Wada

Ryouji Yokotani

Ikuko Aoki

Nozomu Hashimoto

Masashi Sakata

Katsumi Itagaki

An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.

LED lamp, LED illumination device, and LED module

A light-emitting apparatus includes a pedestal, a substrate, an LED, an optical component, and a fastener. The LED is mounted on the substrate, and the substrate includes a first through-hole. The substrate is disposed on the pedestal. The optical component is disposed in the emission direction of light from the LED. The fastener passes through the first through-hole and fastens the optical component to the pedestal. A portion of the pedestal or a portion of the optical component is inserted in the first through-hole.

Light-emitting apparatus with fastening of optical component to pedestal through light-emitting substrate through-hole, illumination light source having the same, and lighting apparatus having the same

A bulb-type lamp having both heat dissipation and size/weight reduction properties with a lower thermal load on a lighting circuit. An LED module is mounted in a case with a base member to allow dissipation of heat. An LED mount member closes another end of the case and allows conduction of heat to the case. A lighting circuit receives power via the base member. The lighting circuit is disposed inside a circuit holder. An air space exists between the circuit holder and both the case and the mount member. The lighting circuit is isolated from the air space by the circuit holder. A relationship 0.5&#x2266;S/S&#x2266;3.0, is satisfied where Sdenotes an area of a portion of the mount member in contact with the case and Sdenotes an area of the portion of the mount member in contact with a substrate of the LED module.

Bulb-shaped lamp and lighting device

To constrain reductions in luminous efficacy while enhancing the color rendition index, the LED module includes a blue LED, at least one variety of phosphor particles excited by the outgoing light from the blue LED, and neodymium glass particles that include neodymium ions absorbing the outgoing light from the phosphor particles in a predetermined wavelength band.

LED module, LED lamp, and illuminating apparatus

A bulb-type lamp having both heat dissipation and size/weight reduction properties with a lower thermal load on a lighting circuit. An LED module is mounted in a case with a base member to allow dissipation of heat. An LED mount member closes another end of the case and allows conduction of heat to the case. A lighting circuit receives power via the base member. The lighting circuit is disposed inside a circuit holder. An air space exists between the circuit holder and both the case and the mount member. The lighting circuit is isolated from the air space by the circuit holder. A relationship 0.5&#x2266;S/S, is satisfied where Sdenotes an area of a portion of the mount member in contact with the case and Sdenotes an area of the portion of the mount member in contact with a substrate of the LED module.

A fluorescent lamp according to the present invention includes: a glass tubein which mercury and a rare gas are enclosed; a protective filmthat is attached so as to cover an inner face of the glass tube; and a phosphor layerthat is laminated on the protective film. The protective filmhas a thickness of 0.5 &#x3bc;m to 3 &#x3bc;m. Further, the protective filmis formed of inorganic particles and has a volume ratio of 0.1 to 0.5. Preferably, the inorganic particles are of at least one selected from the group consisting of aluminum oxide, silicon dioxide, magnesium oxide, zinc oxide, titanium oxide, cerium oxide, yttrium oxide, and calcium halophosphate.

Fluorescent lamp with glass tube and protective layer, method for producing the same, and lighting system

A fluorescent lamp is configured so that a glass bulb has a phosphor film formed on its internal face, and a rare gas and an amalgam pellet are enclosed therein. The amalgam pellet contains zinc, tin, and mercury as principal components, one amalgam pellet is enclosed in the glass bulb, and the amalgam pellet has a weight of not more than 20 mg. The fluorescent lamp satisfies the relationship expressed as: 45&#xd7;(1&#x2212;A)&#x2266;x&#x2266;55&#xd7;(1&#x2212;A), 75A&#x2266;y&#x2266;85A, 45&#x2212;30A&#x2266;z&#x2266;55&#x2212;30A, and x+y+z&#x2266;100, where x represents a content of zinc contained in the amalgam pellet in percent by weight, y represents a content of tin therein in percent by weight, and z represents a content of mercury therein in percent by weight. This configuration allows the fluorescent lamp to be characterized in that an amount of released mercury that is necessary for the first lighting of the fluorescent lamp is secured, and that the phosphor film is less prone to being peeled due to the amalgam.

Fluorescent lamp, luminaire and method for manufacturing fluorescent lamp

A fluorescent lamp including a glass bulb, a protection layer formed on an inner surface of the glass bulb, and a phosphor layer formed on a surface of the protection layer. The surface of the protection layer that is in contact with the phosphor layer has cracks. The bulk density of the metal oxide particles in the protection layeris 80% or more. The surface of the protection layerhas 20 to 200 cracks per millimeter in a tube axis direction. The average particle diameter of the metal oxide particles is in the range from 0.01 &#x3bc;m to 1 &#x3bc;m. The thickness of the protection layer is in the range from 0.5 &#x3bc;m to 5 &#x3bc;m.

Fluorescent lamp, backlight apparatus, and manufacturing method of fluorescent lamp

In evaluating whiteness of light from a light source or a luminaire, whiteness W is given by the following equation,=&#x2212;5.3+100,

Method of evaluating whiteness, method of evaluating comparative whiteness, light source and luminaire

A field-programmable gate array of the present invention includes a program element for connecting/disconnecting first and second basic cells to/from each other responsive to a program externally input and for storing thereon the connection or disconnection state between the first and second cells. The program element includes: a switching device implemented as a CMOS circuit; and a nonvolatile memory device, which stores thereon the ON/OFF states of the switching device and includes a lower electrode, a capacitive insulating film made of a ferroelectric thin film, and an upper electrode. A first interlevel insulating film is formed over the switching device. And a buffer layer for matching a lattice constant of the first interlevel insulating film with that of the ferroelectric thin film is formed on the first interlevel insulating film.

Field-programmable gate array with ferroelectric thin film

Growing community of inventors

Osaka, Japan

Yoshio Manabe