Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Matsushita Electrical Industrial Co., Ltd.

Akira Hochi

Mamoru Takeda

Takeshi Arakawa

Kiyoshi Hashimotodani

Kazuyuki Sakiyama

Tomizo Matsuoka

Yuuji Omata

Koichi Katase

Yoshihisa Hagiwara

Katsushi Seki

Shigeru Horii

Tomohiro Sawa

Shinichi Takasaki

Mitsuharu Kawasaki

Atsushi Kakimoto

A heating system includes: a heat generation unit which generates heat using electricity supplied through a second power system of a lower electricity rate; a heat storage unit which stores heat generated by the heat generation unit; a heat radiation unit which radiates heat stored in the heat storage unit; and a control unit which causes, when receiving a signal from a power supplier indicating that a supply of electricity through the second power system is to be stopped after an elapse of a predetermined period of time, the heat generation unit generates additional heat that is required while the supply of electricity through the second power system being suspended, during a period of time from when the signal is received to when the supply of electricity through the second power system is stopped.

Heating system and heating system control method

An electrodeless self-ballasted fluorescent lamp includes: a luminous bulbhaving a cavity portion; an induction coilinserted in the cavity portion; a ballastelectrically connected to the induction coil; and a base, wherein the luminous bulb, the ballastand the baseare configured as one unit. The luminous bulbincludes an approximately spherical outer tubeand an inner tube. At least the surface of the upper hemisphere of the outer tubeis coated with a silicone rubberhaving the property of transmitting light.

Electrodeless self-ballasted fluorescent lamp and electrodeless discharge lamp operating apparatus

A bulb type electrodeless discharge lamp, comprising a recessed part (), wherein the maximum diameter of a light emitting tube () is 60 to 90 mm and the tube wall load of the light emitting tube () is 0.07 to 0.11 W/cm, and a relation between the diameter Dc of the recessed part () and an interval &#x394;h between the top of the recessed part () and the top part of the light emitting tube () meets the requirement of &#x394;h&#x2266;1.15&#xd7;Dc+1.25 [mm].

Compact self-ballasted electrodeless discharge lamp and electrodeless-discharge-lamp lighting device

An electrodeless discharge lamp operating device including a light-transmitting discharge bulb, an induction coil including a coreand a coil, and a ballast circuitfor supplying a high-frequency power to the induction coil. The operating frequency of the ballast circuitis in the range of 80 kHz to 500 kHz, and where the operating frequency of the ballast circuitis f (kHz) and the power input to the discharge bulbis P (W), the rare gas pressure p (Pa) in the discharge bulbsatisfies the relationship of the following expression: (where A, B and C are constants having the following values: A=4.0&#xd7;10, B=3.5&#xd7;10and C=6.2), and the power input P to the discharge bulbis 7 W at minimum and 22 W at maximum.

Electrodeless low-pressure discharge lamp operating device and self-ballasted electrodeless fluorescent lamp

An electrodeless discharge lamp apparatus includes an electrodeless discharge lamp, a microwave resonator, and a microwave coupler. The microwave resonator includes a conductive reflecting mirror having an opening, a conductive shield, and two opposing external electrodes provided substantially on a central axis of the reflecting mirror. The electrodeless discharge lamp is disposed between the opposing external electrodes. The focal point of the reflecting mirror is positioned between the opposing external electrodes. When microwave energy is supplied to the microwave resonator via the microwave coupler, a microwave resonant electric field occurs between the opposing external electrodes, whereby discharge of the electrodeless discharge lamp occurs.

Electrodeless discharge lamp apparatus with adjustable exciting electrodes

Relatively uniform high frequency energy can be applied to a planar or linear discharge space and a more uniform discharge can be produced by using an electrodeless discharge energy supply apparatus which comprises a surface wave transmission line for exciting a surface wave by a high frequency, the surface wave transmission line being formed from a conductive material having a periodic array of corrugations wherein using the surface wave produced in the vicinity of the surface wave transmission line energy necessary to produce an electrodeless discharge is supplied to an electrodeless discharge tube

Electrodeless discharge energy supply apparatus and electrodeless discharge lamp device using surface wave transmission line

A high-frequency energy supply device has a group of side resonators which are electrically connected in a practically annular form, and supply high-frequency energy using resonant high-frequency electromagnetic fields generated in the center portion; and a plurality of high-frequency coupling part for coupling a plurality of high frequency energies propagated from a plurality of high-frequency propagation paths to said group of side resonators; wherein a plurality of high frequencies coupled to said group of side resonators from said plurality of high-frequency coupling means have phases and/or frequencies different from each other.

High-frequency energy supply means, and a high-frequency electrodeless discharge lamp device using side resonator coupling

Use of a side resonator group comprising a plurality of side resonators, each including both an electromagnetically inductive function section made of a substantially ringed conductive material and an electrically capacitive function section made of a gap, so arranged in a circle as to make said electrically capacitive function sections opposed to the center as high frequency energy supply means, enables a high frequency discharge to take place in a smaller space than that observed in use of a conventional cavity resonator. Besides, application of said high frequency energy supply means to a high frequency electrodeless lamp device enables high frequency energy to be effectively coupled even with a relatively small size of electrodeless discharge lamp.

High frequency discharge energy supply means and high frequency

An electrodeless discharge lamp has an arc tube which seals at least rare gas and one of luminous metal and metal halide thereinto, an opening of the arc tube being vacuum-sealed with at least molten glass, and an sealing unit of the arc tube being placed outside a cavity which supplies excitation energy to make said electrodeless discharge lamp emit a light.

Electrodeless discharge lamp and the manufacturing method thereof

The apparatus has a light transmitting bulb for confining a discharge therein, a fill sealed within the light transmitting bulb and including a rare gas and a metal halide emitting a continuous spectrum by molecular radiation, and a discharge excitation source for applying electrical energy to the fill and for starting and sustaining an arc discharge, and the metal halide includes one kind of halide selected from the group consisting of an indium halide, a gallium halide, and a thallium halide, or a mixture thereof, and in that the light transmitting bulb has no electrodes exposed in discharge space and further this construction utilizes the continuous spectrum of molecular radiation of the metal halide and thereby achieves high color rendering properties and high luminous efficacy simultaneously without using mercury as the fill.

Growing community of inventors

Nara, Japan

Akira Hochi