Abstract: A spark plug includes a center electrode, a ground electrode formed of a metal material containing 95% or more of nickel and a substantially cylindrical metal shell having a front end face to which one end of the ground electrode is welded. In the spark plug, the conditions: 0.15 mm?BD?0.40 mm; and (EW2?EW1)/EW1?0.1 are satisfied where BD is a depth from the front end face of the metal shell to a portion of the ground electrode embedded most deeply in the metal shell; EW1 is a width of a portion of the ground electrode located closest to a portion of the ground electrode deformed by the welding; and EW2 is a width of the portion of the ground electrode deformed by the welding at the front end face of the metal shell.

Abstract: Disclosed is a light unit and a display device using the same, the light unit which includes a first reflector comprising an inclined surface partially formed therein, second and third reflectors arranged at both ends of the first reflector, respectively, a first light source module disposed between the first and second reflectors, and a second light source module disposed between the first reflector and the third reflector, wherein a light emitting direction of the first light source module is different from a light emitting direction of the second light source module.

Abstract: A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first high-temperature solder weld disposed between the diamond window element and the annular insulating spacer and a second high-temperature solder weld disposed between the annular insulating spacer and the cathode element.

Abstract: Disclosed is a light unit. The light unit includes a printed circuit board formed thereon with a plurality of LEDs and a light guide member having receiving holes to receive the LEDs. At least one round part having a predetermined curvature is formed at an edge defined in an intersection between an upper surface and an inner surface of the receiving hole. Since the round part is formed at the edge in the receiving hole receiving the LED at the portion of the light guide member, the light distribution is improved so that the light efficiency is increased.

Abstract: A heat dissipation device for lamps comprises an AC electromagnet coil, a rotor, a support, a filmcoated sheet and a heat sink, the rotor being assembled together with the support via a rotating shaft, the AC electromagnet coil and the support being assembled together, the filmcoated sheet and the heat sink being connected together to form an airbag, the support being provided thereon with a lifting mechanism that is connected with the filmcoated sheet, the lower surface of the rotor being designed with a lug for intermittently pressing the lifting mechanism during the rotation; and, the lifting mechanism comprises an expansion link, a spring, a spring pressing member and a membrane connector.

Abstract: An illumination lens includes a light receiving surface 101; and a light exit surface 103. When the axis of 101 is designated as Z-axis, a position of the bottom of the lens is designated as z=0 and X-axis and Y-axis are defined in a plane which contains z=0 and is perpendicular to Z-axis, 101 is symmetric about YZ-plane and XZ-plane and a cross-sectional area of a cross section of 101 parallel to XY-plane monotonously decreases with increase in z-coordinate. When the maximum value of z-coordinate on 101 is designated as d and a radius of the cross section of 103 at z=0 is designated as r, a point (x, y) on a cross section of 101 at z=0.3d is represented by ( x a ) 2 + ( y b ) 2 = f ? ( ? ) ? ? 0 ? ? ? ? 2 ( 1 ) where a and b represent constants and ? = tan - 1 ? ( y x ) ? ? f ? ( 0 ) = f ? ( ? 2 ) = 1.0 , ? and ? ? f ? ( ? ) ? 1.

Abstract: A spark plug includes a tip joined to a center electrode. The coefficient of linear thermal expansion of the center electrode is greater than that of the tip. The tip has a gap-forming portion having a maximum width of 1.2 mm or greater and forming a gap in cooperation with the ground electrode and a to-be-joined portion joined to the center electrode. At a position A which is shifted 0.1 mm from the forward end of the outer surface of the fusion portion toward the forward end side, the width of the to-be-joined portion measured on the cross section is smaller than the width of the gap-forming portion. The to-be-joined portion satisfies Dtw/Dw?1.1, where Dtw represents the width of the to-be-joined portion at the position A, and Dw represents the width of the fusion portion at the forward end of the outer surface thereof.

Abstract: Disclosed is a hybrid lamp assembly (10) which includes a substantially parabolic reflector (12) having an open end (20) and a circumferential mounting member (18) extending outwardly from the open end (20) of the reflector (12). The mounting member (18) presents a plurality of nonparallel mounting surfaces (22). A primary, non-LED light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (24), comprising a plurality of LED lamps (26), is positioned circumferentially around the open end (20) on the mounting surfaces (22). The LED lamps (26) are each mounted to project in a direction (42) substantially normal to the surface on which it is mounted.

Abstract: A light emitting unit includes a light source device and a reflector. The light source device extends in parallel with an extension direction, and is capable of providing a light beam. The reflector is configured under the light source device and extends in parallel with the extension direction. The reflector has a first protrusion and a pair of second protrusions located on two sides of the first protrusion, the first protrusion has a peak portion and two trough portions, the second protrusion has a peak portion and a trough portion, and the two trough portions of the first protrusion are respectively connected to the trough portions of the two second protrusions to provide a fluctuant reflection surface, and a height of a cross section contour of the pair of the second protrusions in parallel with the extension direction is decreased from a center to two ends of the reflector.

Abstract: The invention provides a light-emitting arrangement (100, 200, 300), comprising: a light source (101, 201, 301) adapted to emit light of a first wavelength; a wavelength converting member (106, 206, 306) comprising a wavelength converting material adapted to receive light of said first wavelength and to convert at least part of the received light to light of a second wavelength; a sealing structure (103) at least partially surrounding said wavelength converting member to form a sealed cavity (105, 205, 305) containing at least said wavelength converting member, said cavity containing a controlled atmosphere; and a getter material (108, 208, 308) arranged within said sealed cavity, wherein said getter material is adapted to operate in the presence of water and/or produces water as a reaction product. Such getter materials have high capacity for removal of oxygen from the atmosphere within the sealed cavity, such that a low oxygen concentration can be maintained within the cavity.

Abstract: A method for manufacturing a spark plug includes: a preparation step of preparing a specimen provided with a center electrode, an insulator, a metal shell, and a ground electrode; and an inspection step of applying a predetermined voltage between the ground electrode and the center electrode of the prepared specimen, and determining whether dielectric breakdown is caused in the insulator. The inspection step includes a calculation step and a judgment step. The calculation step involves receiving an oscillating wave generated from the specimen upon application of the predetermined voltage to the specimen, obtaining a power spectrum by subjecting an oscillating wave signal representing the oscillating wave to fast Fourier transform, and then calculating an integral of a predetermined frequency range in the power spectrum. In the judgment step, whether discharge is caused by dielectric breakdown of the insulator is judged by utilizing the integral.

Abstract: The object of the present invention is to provide an organic electroluminescent element suitable for both food lighting at a high temperature and indoor lighting at room temperature. The organic electroluminescent element according to the present invention has such characteristics that: an element temperature at which a general color rendering index Ra has its maximum in an element temperature range of 5° C. to 60° C. is present in a range of 15° C. to 35° C.; and an element temperature at which at least one of a color rendering index R8 a special color rendering index R9, a special color rendering index R14, and a special color rendering index R15 has its maximum in the element temperature range of 5° C. to 60° C. is in a range of temperatures higher than the element temperature at which the general color rendering index Ra has its maximum.

Abstract: An OLED comprising a substrate with a plurality of pixel regions of first to third colors disposed within a display area, and a functional material layer comprising an organic emissive layer disposed at each of the plurality of pixel regions, wherein first to third partition parts are disposed on the substrate within the display area, first to third frame-like structures are disposed on the substrate outside the display area, the pixel region of the first color is disposed within a first demarcation region demarcated by the first partition part, the pixel region of the second color is disposed within a second demarcation region demarcated by the second partition part, the pixel region of the third color is disposed within a third demarcation region demarcated by the third partition part, and the first to third demarcation regions are connected to the to the interior of the first to third frame-like structures, respectively.

Abstract: A method for fabricating the field emission cathode structure includes following steps. A first carbon nanotube structure is provided. The first carbon nanotube structure is suspended. A voltage is applied to heat the first carbon nanotube structure to form a temperature gradient. A number of second carbon nanotubes are grown on a surface of the first carbon nanotube structure to form a second carbon nanotube structure.

Abstract: The object of the present invention is to provide an organic electroluminescent element suitable for both food lighting at a low temperature and indoor lighting at room temperature. The organic electroluminescent element according to the present invention has such characteristics that a maximum of a general color rendering index Ra in a range of an element temperature of 5° C. to 60° C. is present in a range of the element temperature of 15° C. to 35° C. and that at least one of maxima of special color rendering indexes R10, R11, R12, and R13 in the range of the element temperature of 5° C. to 60° C. is present in a range of the element temperature of 5° C. to 35° C.

Abstract: A vacuum fluorescent display apparatus comprising a filament cathode (10) and an anode (7); the filament cathode being arranged in a vacuum container, and used for releasing low-energy electrons; the anode having a phosphor (8) adhering thereto, and being struck by the low-energy electrons and thereby caused to emit light; wherein a structural body (9) is provided to a region in which the low-energy electrons released by the cathode can be controlled; the structural body having an electrically conductive or semi-conductive metal oxide formed at a portion that is bombarded by low-energy electrons.

Abstract: An LED tube includes a light guide, an LED and a reflector. The light guide includes a light incident face at an end thereof and a light emerging face adjacent to the light incident face. The reflector is mounted on an opposite end of the light guide. The reflector forms a light reflective face facing the light guide to reflect light backward into the light guide.

Abstract: A direct troffer-style fixture for solid state light sources and pan structures for use in these fixtures. The fixture comprises a door frame assembly that is attached to the pan. The pan housing is defined by a base and two angled side walls. End caps are attached to the side walls. End reflectors extend at an angle away from the end caps and attach to the base. The end caps, the end reflectors, and the base define compartments at both ends of the housing in which components can be housed. A light board is attached to the base using alignment holes in the base and cutout portions of the end reflectors. The multifunctional end reflectors retain elements within the compartments, provide added structural stability to the pan, aid in aligning a light board, and they reflect light that impinges on them toward the open end of the fixture.

Abstract: A light-emitting module includes: an LED lamp comprising; a flexible board; and a connection member that sandwiches and fixes the LED lamp and the flexible board. An electrode portion of the flexible board is pressed against an external electrode of the LED lamp by the connection member, whereby the external electrode directly contacts and is electrically connected to the electrode portion. A portion of the connection member highest from the substrate is lower than a portion of the sealing body highest from the substrate.

Abstract: A flat panel display device to protect a display unit against an external shock. The flat panel display device includes a base substrate on which a display unit is formed, an encapsulation substrate combined to the base substrate to cover the display unit, and a metal sheet disposed in a space between the base substrate and the encapsulation substrate and adhered to the base substrate and the encapsulation substrate without a gap. The flat panel display device having such a structure is able to suppress an external shock from being directly transmitted to the display unit, thereby preventing the display unit, which is a key element, from being damaged by the external shock.