Projection television display device
    1.
    发明授权
    Projection television display device 失效
    投影电视显示设备

    公开(公告)号:US5061993A

    公开(公告)日:1991-10-29

    申请号:US273731

    申请日:1988-11-14

    IPC分类号: H04N9/31 H01J29/28

    CPC分类号: H01J29/28

    摘要: Projection television display device includes three monochrome projection television display tubes (20, 21, 22) each having a display screen (24, 25, 26) which is provided on the inside of the display window (23) and luminesces in a different color. Each tube has an optical axis extending perpendicularly from the center of the display screen, the optical axes (33, 34, 35) of the three display screens being co-planar. The axes (34, 33) of the display screens of the first and second tubes (20, 22) coincide and the axis (35) of the display window of the third tube (21) constitutes the main axis of the device, the axis being perpendicular to the two coincident axes (33, 34). Two flat dichroic intersecting reflective mirrors (27, 29) extend perpendicularly of the plane and through the point of intersection of the axes, each at an angle of 45.degree. with the main axis. The first mirror (27) reflects the image of the first display screen and the second mirror (29) reflects the image of the second display screen into the direction of the main axis and away from the third display screen, interference filters being disposed between the display screens and mirrors for passing the desired color of light. With interference filters disposed between the luminescent material of the display screens and the display windows, the reflection greatly increases for light rays constituting an angle of more than 20.degree. to 35.degree. with the normal of the filter. When there is substantially no transmission up to 90.degree., there is a gain in brightness by a factor of 1.5 to 2, a gain in contrast by more than a factor of 2 and also a considerable color improvement and reduction of color errors when the conventional green and blue phosphors are used.

    摘要翻译: 投影电视显示装置包括三个单色投影电视显示管(20,21,22),每个具有显示屏(24,25,26),其设置在显示窗(23)的内部并以不同的颜色发光。 每个管具有从显示屏的中心垂直延伸的光轴,三个显示屏的光轴(33,34,35)是共面的。 第一和第二管(20,22)的显示屏的轴线(34,33)重合,并且第三管(21)的显示窗的轴线(35)构成装置的主轴线,轴线 垂直于两个重合轴线(33,34)。 两个平的二向色相交反射镜(27,29)垂直于该平面并且穿过与轴线成45°的角度与轴的交点。 第一反射镜(27)反映第一显示屏幕的图像,第二反射镜(29)将第二显示屏幕的图像反射到主轴的方向并远离第三显示屏幕,干涉滤光器设置在 显示屏幕和镜子,以通过所需的颜色的光。 通过设置在显示屏的发光材料和显示窗之间的干涉滤光器,与滤光片法线成20°至35°角的光线的反射大大增加。 当基本上没有高达90°的透射率时,亮度增益为1.5至2倍,对比度增益大于2倍,并且当常规 使用绿色和蓝色磷光体。

    Display tube provided with an interference filter
    2.
    发明授权
    Display tube provided with an interference filter 失效
    显示管配有干涉滤光片

    公开(公告)号:US4634926A

    公开(公告)日:1987-01-06

    申请号:US662311

    申请日:1984-10-18

    摘要: A display tube comprising in an evacuated envelope (1) a display screen (7) provided on the inside of a display window (2) in the wall of the envelope (1), which display screen (7) comprises luminescent material (13), and a multilayer interference filter (12) is provided between this material and the display window and comprises a number of layers (HL) which alternately are manufactured from a material having a high (H) and a material having a low (L) refractive index. If the filter is composed substantially of 6 to 30 layers, each having an optical thickness nd, wherein n is the refractive index of the material and d is the thickness, which optical thickness is between 0.2.lambda..sub.f and 0.3.lambda..sub.f and preferably between 0.23.lambda..sub.f and 0.25.lambda..sub.f, wherein .lambda..sub.f is equal to p x.lambda., wherein .lambda. is the desired central wavelength which is selected from the spectrum emitted by the luminescent material (13) and p is a number between 1.15 and 1.45, a display tube is obtained in which the luminous efficiency in the forward direction is at least 40% larger than in a tube without such a filter. Color improvement and gain in contrast also occur.

    摘要翻译: 一种显示管,包括在真空的外壳(1)中,设置在所述外壳(1)的壁上的显示窗(2)的内部的显示屏(7),所述显示屏(7)包括发光材料(13) ,并且在该材料和显示窗之间提供多层干涉滤光片(12),并且包括多个层(HL),其由具有高(H)的材料和具有低(L)折射率的材料交替地制造 指数。 如果滤光片基本上由6至30层组成,每层具有光学厚度nd,其中n是材料的折射率,d是厚度,其光学厚度在0.2λf和0.3λf之间,优选在0.23之间 λf和0.25λf,其中λf等于pxλ,其中λ是从发光材料(13)发射的光谱中选择的期望中心波长,p是1.15和1.45之间的数字,显示管 其中在正向上的发光效率比没有这种滤光器的管中的发光效率大至少40%。 颜色改善与增益的对比也发生了。

    Display tube having a display window with an interference filter
    3.
    发明授权
    Display tube having a display window with an interference filter 失效
    显示管具有带有干涉滤光片的显示窗口

    公开(公告)号:US4647812A

    公开(公告)日:1987-03-03

    申请号:US742834

    申请日:1985-06-10

    摘要: A display tube comprising in an evacuated envelope (1) a display screen (7) provided on the inside of a display window (2) in the wall of the envelope (1), which display screen (7) comprises luminescent material (13), and a multilayer interference filter (12) is provided between this material and the display window and compises a number of layers (HL) which alternately are manufactured from a material having a high (H) and a material having a low (L) refractive index. If the filter is composed substantially of 14 to 30 layers, each having an optical thickness nd, wherein n is the refractive index of the material and d is the thickness, which optical thickness is between 0.2 .lambda..sub.f and 0.3 .lambda..sub.f and preferably between 0.23 .lambda..sub.f and 0.27 .lambda..sub.f, wherein .lambda..sub.f is equal to p x .lambda., wherein .lambda. is the desired central wavelength which is selected from the spectrum emitted by the luminescent material (13) and p is a number between 1.18 and 1.36, a display tube is obtained in which the luminous efficiency in the forward direction and at small angles for the central wavelength of the phosphor is at least 40% larger than in a tube without such a filter. Color improvement and gain in contrast also occur.

    Display tube having improved brightness distribution

    公开(公告)号:USRE34131E

    公开(公告)日:1992-11-24

    申请号:US639481

    申请日:1991-01-09

    IPC分类号: H01J29/18 H01J29/28

    CPC分类号: H01J29/28 H01J29/185

    摘要: A projection television system comprising an array of three projection television display tubes (14) luminescing in red, green and blue, a focusing lens (16) associated with each tube and a display screen (12) on which the respective optical images are merged to form a single multicolored image. At least one of the display tubes (14) has a multilayer interference filter (46) between the phosphor (30) and the faceplate (20). In order to imprve the light output at the corners of the display screen (12), the cut-off angle of the first filter layers is varied between the center and the corners thereof, for example by increasing the optical thickness of the filter layers relative to the center.

    Three tube color projection television system having multispot blue tube
and single-spot red and green tubes
    5.
    发明授权
    Three tube color projection television system having multispot blue tube and single-spot red and green tubes 失效
    三管彩色投影电视系统,具有多色蓝色管和单点红绿色管

    公开(公告)号:US4807014A

    公开(公告)日:1989-02-21

    申请号:US35539

    申请日:1987-04-03

    IPC分类号: H04N9/31 H04N9/20

    CPC分类号: H04N9/31

    摘要: A projection color television system having an improved resolution and luminance comprises red, green and blue color emitting tubes, the electron beams of which are focused onto their respective screens. In order to compensate for the strong saturation of the blue phosphor, and simultaneously to take advantage of the relatively fast decay of this phosphor, the blue color emitting tube is a single gun, multispot display tube. The increase in light output obtainable from the blue color emitting tube is matched by providing interference filters in the red and green color emitting display tubes and optionally in all three red, green and blue emitting tubes.

    摘要翻译: 具有改进的分辨率和亮度的投影彩色电视系统包括红色,绿色和蓝色发光管,其电子束聚焦到它们各自的屏幕上。 为了补偿蓝色荧光体的强烈饱和度,并且同时利用该荧光体相对快速的衰减,蓝色发光管是单枪,多点显示管。 通过在红色和绿色发光显示管中以及任选地在所有三个红色,绿色和蓝色发射管中提供干涉滤光片来匹配从蓝色发光管获得的光输出的增加。

    Projection television display tube and device having interference filter
    6.
    发明授权
    Projection television display tube and device having interference filter 失效
    投影电视显示管和具有干涉滤光片的装置

    公开(公告)号:US4683398A

    公开(公告)日:1987-07-28

    申请号:US794862

    申请日:1985-11-04

    CPC分类号: G02B5/285 H01J29/185

    摘要: A projection television display tube comprising in an evacuated envelope a display screen on the convexly curved inside of a display window in the wall of the envelope, which display screen comprises a layer of luminescent material and a multilayer interference filter between said material layer and the display window, the filter comprising a number of layers which are alternately high refractive index (H) and low refractive index (L). The filter is composed of at least 6 layers, each having an optical thickness nd, wherein n is the refractive index of the material of the layer and d is the thickness, which optical thickness is between 0.2.lambda..sub.f and 0.3.lambda..sub.f, wherein .lambda..sub.f is equal to p x .lambda., wherein .lambda. is the desired central wavelength which is selected from the spectrum emitted by the luminescent material and p is a number between 1.18 and 1.32.

    摘要翻译: 一种投影电视显示管,其在真空的外壳中包括在外壳的壁上的显示窗的凸形弯曲的内部的显示屏,该显示屏包括发光材料层和在所述材料层和显示器之间的多层干涉滤光器 该过滤器包括交替地具有高折射率(H)和低折射率(L)的多个层。 滤波器由至少6层组成,每层具有光学厚度nd,其中n是层的材料的折射率,d是厚度,光学厚度在0.2λf和0.3λf之间,其中λ f等于pxλ,其中λ是从发光材料发射的光谱中选择的期望中心波长,p是1.18和1.32之间的数。

    Display tube having improved brightness distribution
    7.
    发明授权
    Display tube having improved brightness distribution 失效
    显示管具有改善的亮度分布

    公开(公告)号:US4804884A

    公开(公告)日:1989-02-14

    申请号:US645922

    申请日:1987-05-01

    CPC分类号: H01J29/28

    摘要: A projection television system comprising an array of three projection television display tubes (14) luminescing in red, green and blue, a focusing lens (16) associated with each tube and a display screen (12) on which the respective optical images are merged to form a single multicolored image. At least one of the display tubes (14) has a multilayer interference filter (46) between the phosphor (30) and the faceplate (20). In order to imprve the light output at the corners of the display screen (12), the cut-off angle of the first filter layers is varied between the center and the corners thereof, for example by increasing the optical thickness of the filter layers relative to the center.

    摘要翻译: 一种投影电视系统,包括以红色,绿色和蓝色发光的三个投影电视显示管(14)的阵列,与每个管相关联的聚焦透镜(16)和显示屏(12),各个光学图像合并在其上 形成一个单一的多彩图像。 至少一个显示管(14)在荧光体(30)和面板(20)之间具有多层干涉滤光器(46)。 为了使显示屏幕(12)的角落处的光输出偏移,第一滤光层的截止角在其中心和角部之间变化,例如通过增加滤光层相对的光学厚度 到中心

    Optical recording method and apparatus using this method
    9.
    发明授权
    Optical recording method and apparatus using this method 有权
    使用该方法的光记录方法和装置

    公开(公告)号:US07123563B2

    公开(公告)日:2006-10-17

    申请号:US11023026

    申请日:2004-12-23

    IPC分类号: G11B7/00

    摘要: An optical recording method and recording apparatus using this method is described in which an optimum write power of a radiation beam in the apparatus is set by writing a series of test patterns on an optical recordable medium, forming a read signal from the patterns, reading a preset value of the derivative of the modulation of the read signal with respect to the write power from the medium, and processing the read signal together with the preset value to derive an optimum value of the write power.

    摘要翻译: 描述使用该方法的光记录方法和记录装置,其中通过将一系列测试图案写在光可记录介质上来设置装置中的辐射束的最佳写入功率,从图案形成读取信号,读取 相对于来自介质的写入功率的读取信号的调制的导数的预置值,以及与预设值一起处理读取的信号以导出写入功率的最佳值。

    Optical disc and apparatus for scanning the optical disc
    10.
    发明授权
    Optical disc and apparatus for scanning the optical disc 失效
    用于扫描光盘的光盘和设备

    公开(公告)号:US06700861B2

    公开(公告)日:2004-03-02

    申请号:US10349238

    申请日:2003-01-22

    IPC分类号: G11B700

    CPC分类号: G11B7/007 G11B7/00745

    摘要: The invention relates to an optical disc for recording data at a constant density, so called CLV (Constant Linear Velocity) or at zoned CLV. The disc has headers distributed along the disc on regular angular positions, a so called CAV (Constant Angular Velocity) pattern subdividing the track in track portions for recording an amount of data proportional to the radial position of the track portion concerned. Address information included in the headers is provided at the data density, which is CLV. The apparatus comprises header detection means for detecting the headers at the CAV locations, and for recovering position information from the headers at CLV density. Data sectors do not start at headers and are not fitted regularly between the headers, but start and stop at arbitrary positions which are calculated from the known amounts of data recordable in the track portions.

    摘要翻译: 本发明涉及用于以恒定密度记录数据的光盘,即所谓的CLV(恒定线速度)或分区CLV。 光盘具有沿着盘的规则角位置分配的头部,即所谓的CAV(恒定角速度)图案,其细分轨道部分中的轨迹,用于记录与相关轨道部分的径向位置成比例的数据量。 标题中包含的地址信息是以CLV的数据密度提供的。 该装置包括头部检测装置,用于检测CAV位置处的头部,并用于从CLV密度的头部恢复位置信息。 数据扇区不在标题处开始,并且不能在标题之间定期地拟合,而是可以从在轨道部分中可记录的已知数据量计算出的任意位置开始和停止。