Abstract:
Provided are a light emitting device using electron emission with a low driving voltage and high luminous efficiency, and a flat display apparatus using the light emitting device. In addition, a light emitting device using electron emission in which with a nano-sized gap can be formed with repeatability and have reliability is provided. The light emitting device includes: a plurality of PN junctions (34), each including a depletion layer having a predetermined thickness; an anode electrode (12) facing the depletion layer and separated from the depletion layer by a predetermined distance; and a phosphor layer (13) formed on a surface of the anode electrode. The flat display apparatus includes the light emitting device.
Abstract:
An electron emission light-emitting device includes a cathode structure, an anode structure, a fluorescent layer, and a low-pressure gas layer. The fluorescent layer is located between the cathode structure and the anode structure. The low-pressure gas layer is filled between the cathode structure and the anode structure, having a function of inducing the cathode to emit electron uniformly. The low-pressure gas layer has an electron mean free path, allowing at least sufficient amount of electrons to directly impinge the fluorescent layer under an operation voltage.
Abstract:
A flange portion 4A is integrally formed with a stem 4 which forms a sealing envelope for a gas discharge tube. Accordingly, operation for building and fixing the flange portion 4A is not necessary, so that lamp assembly operation is simplified, and mass production is facilitated. In addition, when a gas discharge tube 1 is to be fixed to an external stem setting portion 17, lamp setting is enabled at higher precision by utilizing positioning holes 22 formed in the flange portion 4A in advance.
Abstract:
In a gas discharge tube 1 in accordance with the present invention, one or both of the inner wall face 22A and outer wall face 22B of a side tube body 22 are provided with a coating 21 made of a glass material or ceramics. As a result, the side tube body 22 can be made of various materials regardless of properties of the gas filling the inside, whereby the gas discharge tube 1 can have a wider range of processed forms and smaller dimensions at the same time, and its mass production can freely be carried out.
Abstract:
Изобретение относится к источникам света с лазерной накачкой и способам генерации излучения высокой яркости в ультрафиолетовом (УФ) и видимом спектральных диапазонах. Техническим результатом изобретения является расширение функциональных возможностей источника света с лазерной накачкой за счет повышение яркости, увеличения коэффициента поглощения лазерного излучения плазмой, значительного уменьшения числовой апертуры блокируемого расходящегося лазерного пучка, прошедшего через плазму. Устройство включает камеру, содержащую газ, лазер, обеспечивающий лазерный пучок; оптический элемент, фокусирующий лазерный пучок с первой стороны камеры, область излучающей плазмы, создаваемую в камере сфокусированным лазерным пучком; блокатор, установленный на оси расходящегося лазерного пучка со второй стороны камеры, противоположной первой стороне, и оптическую систему сбора излучения плазмы.