摘要:
An image forming material includes a perimidine-substituted squarylium dye that has a structure represented by the following formula (I) and shows diffraction peaks at least at Bragg angles (2θ±0.2°) of 17.7°, 19.9°, 22.1°, 23.2° and 24.9° in its X-ray powder diffraction spectrum measured by irradiation with X rays generated from a Cu target with a wavelength of 1.5405 angstroms:
摘要:
A laser fixing apparatus includes a laser light generator that generates laser light to be projected onto a recording medium; and a first condenser that reflects and condenses light reflected at an irradiation position of the laser light, such that the reflected light reenters at the irradiation position or near the irradiation position. The first condenser has a concave cylindrical surface and is arranged such that a center axis position of the cylindrical surface is located at the irradiation position of the laser light or near the irradiation position, and a reflecting surface of the first condenser is covered by a light transmitting body.
摘要:
A power semiconductor device has semiconductor layers, including: first layer of first type; second and third layers respectively of first and second types alternately on the first layer; fourth layers of second type on the third layers; fifth layers of first type on the fourth layer; sixth and seventh layers respectively of second and first types alternately on the second and third layers; a first electrode connected to the first layer; an insulation film on fourth, sixth, and seventh layers; a second electrode on fourth, sixth, and seventh layers via the insulation film; and a third electrode joined to fourth and fifth layers, wherein the sixth layers are connected to the fourth layers and one of the third layers between two fourth layers, and an impurity concentration of the third layers below the sixth layers is higher than that of the third layers under the fourth layers.
摘要:
A self-ballasted lamp includes: a base body; a light-emitting module and a globe which are provided at one end side of the base body; a cap provided at the other end side of the base body; and a lighting circuit housed between the base body and the cap. The light-emitting module has light-emitting portions each using a semiconductor light-emitting element, and a support portion projected at one end side of the base body, and the light-emitting portions are disposed at least on a circumferential surface of the support portion. A light-transmissive member is interposed between the light-emitting module and an inner face of the globe.
摘要:
In a vertical power semiconductor device having the super junction structure both in a device section and a terminal section, an n-type impurity layer is formed on the outer peripheral surface in the super junction structure. This allows an electric field on the outer peripheral surface of the super junction structure region to be reduced. Accordingly, a reliable vertical power semiconductor device of a high withstand voltage can be provided.
摘要:
An object of the present invention to provide a fluorescent lamp in which after formation of a phosphor layer, a glass bulb is bent and in which the phosphor layer is not subject to cracking or peel-off even in bent parts with a small radius of curvature, thus offering a good appearance. A fluorescent lamp includes a glass bulb 1 having bent parts, a protective film 2 having a fine grain layer 2a comprising fine grains of average grain size at most 100 nm and attached to an inner surface of the glass bulb, and large-sized grains some of which are buried in the fine grain layer 2a, the other large-sized grains projecting from the fine grain layer 2a, a phosphor layer 3 formed on the protective film 2 of the glass bulb 1, discharge inducing means 4, 4 sealably installed in opposite ends of the glass bulb 1, and a discharge medium sealed in the glass bulb 1.
摘要:
Provided is a set material of photoinitiators which prevent a reduction in the light transmittance of each colored resist. The colored resist material set comprises at least colored resist materials having three colors and consisting of a red resist material, a green resist material and a blue resist material, each resist material containing a reactive monomer, a photoinitiator and a dye and/or a pigment, wherein the photoinitiator contained in the red resist material has a photoabsorption region on the side of wavelengths shorter than 570 nm, the photoinitiator contained in the green resist material has a photoabsorption region on the side of wavelengths shorter than 460 nm, and the photoinitiator contained in the blue resist material has a photoabsorption region on the side of wavelengths shorter than 400 nm, each photoinitiator using at least two or more photoinitiators.