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    • 52. 发明授权
    • Video camera with aperture blade
    • 带孔径刀片的摄像机
    • US07280150B2
    • 2007-10-09
    • US10343478
    • 2001-07-30
    • Kenichi KikuchiKazuhiko Sugimoto
    • Kenichi KikuchiKazuhiko Sugimoto
    • H04N5/238H04N5/225
    • G03B9/02H04N5/23293H04N5/238
    • A video camera (10) includes a photographing device (16). The photographing device (16) generates an image signal corresponding to an optical image irradiated on a light-receiving surface, and a monitor (34) displays a moving image based on a generated image signal. An amount of incident light into the photographing device (16) is controlled by an aperture apparatus (14) having an aperture blade that moves to a direction perpendicular to a light axis. A moving amount of the aperture blade is restricted by a predetermined value, and this defines a minimum value of an F number. When the moving image is displayed on the monitor (34), it is prohibited to set to the minimum value of the F number.
    • 摄像机(10)包括拍摄装置(16)。 拍摄装置(16)生成与照射在受光面上的光学图像对应的图像信号,监视器(34)基于生成的图像信号显示运动图像。 进入摄影装置(16)的入射光量由具有向与光轴垂直的方向移动的光圈叶片的光圈装置(14)控制。 孔径叶片的移动量受到预定值的限制,这定义了F数的最小值。 当运动图像显示在监视器(34)上时,禁止将其设置为F数字的最小值。
    • 55. 发明授权
    • Phosphor and plasma display device
    • 荧光粉和等离子体显示装置
    • US07238303B2
    • 2007-07-03
    • US10928516
    • 2004-08-27
    • Kojiro OkuyamaTakehiro ZukawaMasahiro SakaiSeigo ShiraishiKazuhiko SugimotoMasaki AokiJunichi Hibino
    • Kojiro OkuyamaTakehiro ZukawaMasahiro SakaiSeigo ShiraishiKazuhiko SugimotoMasaki AokiJunichi Hibino
    • C09K11/64C09K11/55H01J11/00H01J11/02
    • C09K11/595C09K11/7734C09K11/778H01J1/63H01J2211/42
    • Phosphor and a plasma display device are provided whose deterioration in brightness of phosphors and a degree of change in chromaticity are alleviated and whose discharge characteristics are improved and that has excellent initial characteristics. Phosphor of the present invention is an alkaline-earth metal aluminate phosphor containing an element M (where M denotes at least one type of element selected from the group consisting of Nb, Ta, W and B). In this phosphor, a concentration of M in the vicinity of a surface of the phosphor particles is higher than the average concentration of M in the phosphor particles as a whole. A plasma display device according to the present invention includes a plasma display panel in which a plurality of discharge cells in one color or in a plurality of colors are arranged and phosphor layers are arranged so as to correspond to the discharge cells in colors and in which light is emitted by exciting the phosphor layers with ultraviolet rays. The phosphor layers include blue phosphor, where the afore-mentioned phosphor is used as the blue phosphor.
    • 提供了荧光体和等离子体显示装置,其荧光体的亮度劣化和色度变化程度得到缓解,其放电特性得到改善并具有优异的初始特性。 本发明的荧光体是含有元素M的碱土金属铝酸盐荧光体(其中M表示选自Nb,Ta,W和B中的至少一种元素)。 在该荧光体中,荧光体粒子表面附近的M浓度高于荧光体粒子的M的平均浓度。 根据本发明的等离子体显示装置包括等离子体显示面板,其中排列有一种颜色或多种颜色的多个放电单元,并且荧光体层被布置为与颜色的放电单元相对应,并且其中 通过用紫外线激发荧光体层来发射光。 荧光体层包括蓝色荧光体,其中上述荧光体用作蓝色荧光体。