Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Toshiba Lighting & Technology Corporation

Mitsubishi Yuka Industrial Products Corporation

Kiyoshi Takahashi

Makoto Horiuchi

Masaru Odagiri

Mikio Murai

Tsuyoshi Ichibakase

Tomoyuki Seki

Shinichiro Hataoka

Mamoru Takeda

Yuriko Kaneko

Makoto Kai

Takashi Tsutatani

Hideyuki Ueda

Hideaki Kiryu

Kazuyoshi Honda

Noriyasu Echigo

Nobuki Sunagare

Masanori Shimizu

Tadashi Yano

Yukikazu Ohchi

Takashi Suzuki

Masato Yoshida

Yoshiaki Kai

Hiroshi Seki

Kenji Kuwahara

Takayuki Murase

Ryo Minamihata

Takeshi Saito

Toshiharu Kurosawa

Syunsuke Ono

Hiroyoshi Tsuchiya

Toshiaki Kunieda

Yoshitaka Kurimoto

Yuji Maruyama

Jun Sakaguchi

Katsuo Nakazato

Tatsuya Hiwatashi

Takeshi Osada

Masahiro Yamamoto

Kenichi Sasaki

Toshifumi Ogata

Satoshi Kominami

Sadayuki Okazaki

Yoshiharu Nishiura

Noriyasu Tanimoto

Hiroshi Nohara

Masahiko Kamata

Satoshi Fukano

Kouji Miyazaki

Atsushi Utsubo

Toshiyuki Shimizu

Yukiya Kanazawa

Hidetoshi Matsumoto

Takatoshi Minoda

Shougo Takahashi

Tomoaki Ono

Takeo Fukuda

Makoto c/oMatElecInd Co Ltd Iproc Kai

Jun c/o Matsushita Electr Ind Co Lt Sakaguchi

A lamp system () includes a straight tube type lamp () and a socket (). The straight tube type lamp () includes a straight tube type cover () containing a light-emitting element, and caps () arranged at both ends of the cover (). A pair of lamp pins () whose tips respectively protrude in directions intersecting a lamp longitudinal direction are protrudingly provided on end faces of the caps () at both the ends. The socket () includes a socket body (), a rotor () which is arranged in the socket body () and on which the pair of lamp pins () of the straight tube type lamp () are mounted, and a pair of terminals to which the pair of lamp pins () mounted on the rotor () are connected. At least the rotor () can move in the lamp longitudinal direction.

Lamp system

A method for forming a thin film includes the steps of: supplying a deposition material in the form of a liquid onto a heated surface; heating and vaporizing the deposition material on the heated surface while the deposition material is undergoing movement; and depositing the deposition material onto a deposition surface. The deposition material is supplied onto a position of the heated surface where the vaporized deposition material does not reach the deposition surface.

Thin film, method and apparatus for forming the same, and electronic component incorporating the same

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

A manufacturing method of a high-pressure mercury lamp includes an electric field application step in which an electric field is applied to at least a light emission part () with the high-pressure mercury lamp being kept at a high temperature. This can reduce impurities such as hydrogen and alkali metals in a discharge space () and glass forming the light emission part (). As a consequence, blackening and devitrification of the high-pressure mercury lamp while the lamp is lit can be reduced.

Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp, lamp unit using high-pressure discharge lamp, and image display apparatus using high-pressure discharge lamp

A method for manufacturing a high pressure mercury lamp having a high pressure resistance strength includes an electric field application step of applying an electric field to at least a light emitting part while keeping the high pressure mercury lamp at a high temperature. As a result of the electric field application step, impurities such as hydrogen and an alkali metal existing in a discharge space and in glass used for forming the light emitting part () and sealing parts () can be reduced, with it being possible to suppress blackening and devitrification during lighting.

Method for manufacturing high pressure discharge lamp, high pressure discharge lamp manufactured using the method, lamp unit, and image display device

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

A metal halide lamp of the present invention has an arc tube formed of ceramic and a pair of opposing electrodes. This lamp includes a Pr (praseodymium) halide, a Na (sodium) halide, and a Ca (calcium) halide enclosed within the arc tube. The Pr halide content Hp [mol], the Na halide content Hn [mol], and the Ca halide content Hc [mol] satisfy the relationships of 0.4&#x2266;Hc/Hp&#x2266;15.0 and 3.0&#x2266;Hn/Hp&#x2266;25.0.

Metal halide lamp

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

A lamp with a reflector comprises a high pressure discharge lamp and a reflector. The reflector has a first opening and a second opening. Clearance between a sealing portion of the high pressure discharge lamp and the second opening is substantially filled. The sealing portion includes a first glass portion extending from a luminous bulb and a second glass portion provided in the inside of the first glass portion, and the sealing portion has a portion to which a compressive stress is applied. Moreover, when the sealing portion is disposed to extend in a substantially horizontal direction, a portion of the reflector is formed with an air inlet for introducing an air flow striking against an upper portion of the luminous bulband then coming into a lower portion of the luminous bulb

High pressure mercury lamp with vented reflector and image projection apparatus

An LED lamp according to the present invention includes: a substratehaving a principal surface; at least one LED, which is supported on the principal surfaceof the substrate; a reflector, which has an opening that defines a reflective surfacesurrounding the side surface of the LEDand which is supported on the principal surfaceof the substrate; and an encapsulating resin layer, which covers the LEDand the reflectortogether. When a portion of the encapsulating resin layerthat covers the side surfacesof the reflectorhas a thickness Dw and another portion of the encapsulating resin layerthat covers the upper surfaceof the reflectorhas a thickness Dh, the LED lamp has a Dh/Dw ratio of 1.2 to 1.8.

Led lamp including a plurality of led chips

A method for manufacturing a high-pressure discharge lamp includes a process step in which a sealing portion is formed out of a side tube portion of a glass pipe that is designed for use in a discharge lamp. In the step of forming the sealing portion, a compound glass tube, which is composed of an outer tube made of a first glass and an inner tube made of a second glass whose softening point is lower than that of the first glass, is inserted into the side tube portion, which is also formed of the first glass. The side tube portion is then heated so that the side tube portion is brought in tight contact with the compound glass tube. Thereafter, at least the sealing portion is heated at a temperature higher than the strain point temperature of the second glass portion.

Method for manufacturing high-pressure discharge lamp, glass tube for high-pressure discharge lamp, and lamp element for high-pressure discharge lamp

A glass pipefor a discharge lamp is prepared which includes a luminous bulb portionthat will be formed into a luminous bulb of a high pressure discharge lamp and a side tube portion. Subsequently, a glass membermade of a second glass having a softening point lower than that of a first glass constituting the side tube portionis inserted into the side tube portion, after which a getteris disposed in the side tube portion. Then, with the pressure inside the glass pipereduced, the side tube portionis heated to tightly attach the glass memberto the side tube portion, thereby forming a sealing portion.

Method for producing a high pressure discharge lamp, with sealing portion having first and second glass members

A high pressure discharge lampcomprises a luminous bulbenclosing a luminous substanceinside and a sealing portionfor retaining the airtightness of the luminous bulb. The sealing portionhas a first glass portionextending from the luminous bulband a second glass portionprovided at least in a portion of the inside of the first glass portion, and further has a portion () to which a compressive stress is applied. In the luminous bulb, mercuric bromide (HgBr) is enclosed.

The formation step of a sealing portionincludes the substeps of inserting, into the side tube portion, a glass membermade of a second glass having a softening point lower than that of a first glass constituting the side tube portion; tightly attaching forward and backward portions (A and C) of the glass memberto the side tube portionby heating the side tube portionwhen the glass memberis divided into the forward portion, the backward portion, and a central portion under the assumption that the side of the glass membercloser to a luminous bulb portionis the forward side, thereby forming a cavitybetween at least a portion of the central portion (B) and the side tube portion; and heating, after the attachment step, a portion including at least the glass memberand the side tube portionat a temperature higher than the strain point temperature of the second glass.

High pressure discharge lamp, method for producing the same and lamp unit

Growing community of inventors

Kyoto, Japan

Kiyoshi Takahashi