Kabushiki Kaisha Toyota Jidoshokki

Eagle Industry Co., Ltd.

Japan Fine Ceramics Center

Norihito Takeuchi

Fumikazu Isogai

Yasuya Mita

Eiki Niida

Yoshifumi Kato

Masayuki Harada

Hiroyasu Kawauchi

Haruyuki Ishikawa

Yoshihiro Ogawa

Toshiaki Iwa

Tomoyoshi Motohiro

Yasuhiko Takeda

Tatsuo Fukano

Kazuto Noritake

Toru Sasatani

Takayuki Homma

Yoshiki Okuhara

Takuhito Tsutsui

Hironori Ito

Seiichi Suda

Masato Hieda

Mikio Yoshida

Tetsuya Utsumi

Hiroyuki Miura

This invention is a sunlight-to-heat converting member containing chromium silicide having an element ratio of Cr to Si from 1:1.6 to 1:4.7. This invention is also a sunlight-to-heat converting stack including a layer of the sunlight-to-heat converting member and a metal layer. This invention is also a sunlight-to-heat converting device including a light collecting part, either or both of a container and a flow path where sunlight is collected by the light collecting part, and a heating medium housed in either or both of the container and the flow path. The sunlight-to-heat converting member or the sunlight-to-heat converting stack is formed on a surface of either or both of the container and the flow path. The sunlight-to-heat converting member, the sunlight-to-heat converting stack, and the sunlight-to-heat converting device of this invention can convert light to heat efficiently.

Sunlight-to-heat converting member, sunlight-to-heat converting stack, sunlight-to-heat converting device, and solar power generating device

A solar heat collection tube includes a center metal tube that allows a heat medium to flow therethrough, a glass tube that covers the outer circumference of the center metal tube to form an annular void between the glass tube and the center metal tube, and an absorber configured to absorb a difference in the thermal expansion between the center metal tube and the glass tube. The absorber has a connection cylinder and metal bellows. The metallic bellows are connected in series by the connection cylinder. The bellows are arranged to overlap in the radial direction with the connection cylinder located therebetween.

Solar heat collection tube

An organic EL element that is an electroluminescence element has at least an organic layer held between a pair of electrodes. At least an electrode made of material having a higher volume resistivity, of the pair of electrodes, is formed in a flat form. The organic layer is provided with a plurality of non-light emitting portions. The non-light emitting portions are provided so that a larger number of non-light emitting portions exist per unit area at a position physically closer to the position of a terminal portion at which the electrode made of material having the higher volume resistivity is connected to an external connection terminal. As a result, the level of current passing per unit area is substantially uniform at each position on the element.

Electric field light emitting element

An electroluminescence element includes a first electrode, a second electrode, and a light emission layer arranged between the first electrode and the second electrode. The first electrode is formed of a material having a higher volume resistivity than that of the material of the second electrode. A connector portion electrically connects a feeder portion to the first electrode. The resistance value of the connector portion differs in correspondence with a position at which the connector portion connects the feeder portion to the first electrode. The brightness distribution of the electroluminescence element is thus adjusted to a desired state.

Electroluminescence element

Respective glass substratesof a pair of such EL devicesare disposed in such a manner that EL element portionsformed on their respective front surfacesare opposed to each other. Spacersare disposed between the two glass substratesso that the EL element portionsare separated from each other and do not interfere with each other. In this state, peripheral portions of the two glass substratesare bonded to each other with a sealing material, whereby a hollow portionformed between the two glass substratesis sealed with the sealing materialand isolated from the outside. Then, the two glass substratesthat are integrated together are immersed in an etching liquid, that is, they are subjected to thinning processing.

Method for thinning substrate of EL device

A luminescence cell having a novel structure includes a transparent conductor having a surface on which first and second regions are defined. A first electroluminescence element, including a first organic layer containing an organic luminescence material and a first electrode laminated on the first organic layer, is arranged on the first region. A second electroluminescence element, including a second organic layer containing an organic luminescence material and a second electrode laminated on the second organic layer, is arranged on the second region. The first electrode is physically separated from the second electrode. The first layer is physically separated from the second layer. The first and second organic layers emit light when current flows between the first and second electrodes. The light emitted from the organic layer passes through the transparent conductor and exits the luminescence cell.

Luminescence cell, luminescence device with luminescence cell, luminescence unit, luminescence device with luminescence unit, frame for luminescence device, and method for manufacturing luminescence cell

A transparent substrate used for an area light emitting device. The transparent substrate comprises a light incidence surface and a light exit surface opposite to the light incidence surface. A plurality of recesses are formed on the light exit surface bulged towards the light incidence surface. Each recess has a shape approximately corresponding to a portion of an oval sphere. Each recess perimeter on the light exit surface is approximately circle. Each recess is separately formed from other recesses.

Transparent substrate for area light emitting device, a method for producing transparent substrate, and area light emitting device and liquid crystal display device

A light guiding plate guides light from a light source and irradiates the light onto a display portion. The light guiding plate has an exit plate facing the display portion, and a reflection-exit plane opposite to the exit plane. The reflection-exit plane has a first end intersecting an incidence plane and a second end intersecting an opposite end plane. An inclination angle, defined by the exit plane and a line that contains the first end and the second end, is greater than 0.20&#xb0; and less than 0.75&#xb0;. The reflection-exit plane includes a light admission portion that reflects light entering through or reflected on the incidence plane to the exit plane.

Light guiding plate for front light

A light guiding plate guides light from a light source and irradiates the light onto a display portion. The light guiding plate has an incidence plane, which permits light to enter the light guiding plate, an opposite and plane opposite to the incidence plane an exit plane facing the display portion, and a reflection-exit plane opposite to the exit plane. A plurality of grooves are formed on the reflection exit plane. In any adjacent pair of the grooves, the depth of the groove closer to the opposite end plane is equal to or greater than the depth of the groove closer to the incidence plane. The depth of the grooves substantially increase from the incidence plane toward the opposite end plane. This improves the uniformity of brightness distribution.

Wedge plate type light guiding plate for front light

A light guiding plate guides light from a light source and irradiates the light onto a display portion. The light guiding plate has an incidence plane, an opposite end plane opposite to the incidence plane, an exit plane facing the display portion, and a reflection-exit plane opposite to the exit plane. A plurality of grooves are formed on the reflection-exit plane. The depth of the grooves monotonously increases from the incidence plane toward the opposite end plane. Each groove is defined by intersecting first and second planes. In each groove, the angle defined by the first plane and the exit plane is substantially equal to that of the other grooves. In each groove, the angle defined by the first plane and the second plane is substantially equal to that of the other grooves. This waveguide increases the brightness and improves the uniformity of brightness distribution.

Wedge plate type light guiding plate for front light and method for manufacturing the light guiding plate

A light guiding plate guides light from a light source to illuminate a liquid crystal cell. A reflector reflects light from the light source. A first surface and a second surface selectively transmits or reflects light. A first region is formed on the first surface at a location that is relatively near the light source. The first region includes a first inclined face and a second inclined face. The first inclined face reflects light from the light source to guide light to the reflector. The second inclined face reflects light from the light source to the second surface so that the second surface emits light. A second region is formed on the first surface at a location that is relatively far from the light source. The second region includes a third inclined face and a fourth inclined face. The third inclined face reflects light from the light source to the second surface so that the second surface emits light. The fourth inclined face reflects light reflected by the reflector to the second surface so that the second surface emits light.

Growing community of inventors

Kariya, Japan

Norihito Takeuchi