Optical image generator having a spatial light modulator and a display
device
    1.
    发明授权
    Optical image generator having a spatial light modulator and a display device 失效
    具有空间光调制器和显示装置的光学图像发生器

    公开(公告)号:US4818983A

    公开(公告)日:1989-04-04

    申请号:US894014

    申请日:1986-08-07

    IPC分类号: G02F1/03 G09G3/00

    CPC分类号: G02F1/0333

    摘要: An optical image generator includes a spatial light modulator and a display device. The spatial light modulator contains a material whose optical property can be changed corresponding to a change in the image pattern of an electronic charge emitted from a photocathode, so that the image pattern can be written into the material. The display device contains a two-dimensional light emitting diode (LED) or a liquid crystal display of matrix type which is arranged against the photocathode of the spatial light modulator.

    摘要翻译: 光学图像发生器包括空间光调制器和显示装置。 空间光调制器包含其光学性能可以根据从光电阴极发射的电子电荷的图像图案的变化而改变的材料,从而可以将图像图案写入材料中。 显示装置包含二维发光二极管(LED)或矩阵型的液晶显示器,该液晶显示器被布置成抵靠空间光调制器的光电阴极。

    Microwave holograph device
    2.
    发明授权
    Microwave holograph device 失效
    微波全息设备

    公开(公告)号:US4783134A

    公开(公告)日:1988-11-08

    申请号:US887611

    申请日:1986-07-21

    CPC分类号: H01Q19/067 G03H5/00

    摘要: In a microwave holographic device, the main lobe of a microwave antenna is spatially scanned to receive a microwave signal reflected from an object. The received microwave signal is mixed with a reference signal to generate two-dimensional electric information, synchronized with the scanning. The two-dimensional electric information is used to change the optical properties of an electrooptic material, and then the optical property changes are read out to obtain a holographic image.

    摘要翻译: 在微波全息装置中,微波天线的主瓣被空间扫描以接收从物体反射的微波信号。 所接收的微波信号与参考信号混合以产生与扫描同步的二维电信息。 二维电信息用于改变电光材料的光学特性,然后读出光学性能变化以获得全息图像。

    Spatial light modulator
    3.
    发明授权
    Spatial light modulator 失效
    空间光调制器

    公开(公告)号:US4741602A

    公开(公告)日:1988-05-03

    申请号:US887610

    申请日:1986-07-21

    IPC分类号: G02F1/03 G02B5/30 G02F1/05

    CPC分类号: G02F1/0333

    摘要: A spatial light modulator consists of an electron beam source formed within a vacuum envelope and an electro-optic crystal or organic film whose optical property changes corresponding to the charge stored on the surface thereof. The electro-optic crystal or organic film is fastened to the substrate through adhesive or the transparent conductive film which is covered with a low-vapor-pressure material.

    摘要翻译: 空间光调制器由形成在真空外壳内的电子束源和电光晶体或有机膜组成,其光学特性随存储在其表面上的电荷而变化。 电光晶体或有机膜通过粘合剂或用低蒸气压材料覆盖的透明导电膜固定在基板上。

    Synchronous scan streaking device
    5.
    发明授权
    Synchronous scan streaking device 失效
    同步扫描条纹装置

    公开(公告)号:US4677341A

    公开(公告)日:1987-06-30

    申请号:US703999

    申请日:1985-02-21

    IPC分类号: H01J29/74 H01J31/50 H01J29/41

    CPC分类号: H01J29/74 H01J31/502

    摘要: A synchronous scan streaking device comprising a photoelectric layer, an electronic lens, an anode with an aperture, a pair of deflection electrodes, and a phosphor layer arranged in order within a vacuum envelope. A deflection voltage at the same frequency as the repetition rate of the light pulses incident on the phosphor layer to be measured is fed from deflection voltage generation means to the deflection electrodes so as to repetitively generate an enhanced image of the incident light on the phosphor layer. At least one shielding metal structure which is connected to the common potential source is arranged in the space between the deflection electrode plate and the wall of the envelope, and surrounding a deflection electrode plate lead provided to connect the deflection electrode plate through the envelope to the deflection voltage generation means.

    摘要翻译: 一种同步扫描条纹装置,包括光电层,电子透镜,具有孔的阳极,一对偏转电极和在真空外壳内依次布置的荧光体层。 入射到待测荧光体层上的光脉冲的重复频率的相同频率的偏转电压从偏转电压产生装置馈送到偏转电极,以便在荧光体层上反复产生入射光的增强图像 。 连接到公共电位源的至少一个屏蔽金属结构被布置在偏转电极板和外壳的壁之间的空间中,并且围绕设置成将偏转电极板通过外壳连接到偏转电极板引线的偏转电极板引线 偏转电压产生装置。

    Twin-image elimination apparatus and method
    7.
    发明授权
    Twin-image elimination apparatus and method 失效
    双图像消除装置和方法

    公开(公告)号:US5805316A

    公开(公告)日:1998-09-08

    申请号:US705971

    申请日:1996-08-30

    IPC分类号: G03H1/10 G03H1/00 G03H1/22

    摘要: The twin-image elimination apparatus of the present invention comprises (a) a scanning light source for emitting a scanning light beam; (b) an interference device which converts the scanning light beam from the scanning light source into a spherical wave and a plane wave having temporal frequencies different from each other and combines the spherical and plane waves together; (c) a scanner for scanning an object with the combined light beam from the interference device; (d) a photodetector for detecting a scattered wave from the object; (e) a first multiplier which converts an output signal of the photodetector into a cosine-coded holographic information; (f) a second multiplier which converts the output signal of the photodetector into a sine-coded holographic information; and (g) a holographic reconstruction device which converts output signals of the first and second multipliers into a sum signal, in which these output signals are added together with a phase difference of .pi./2+2n.pi. (wherein n is an integer not less than 0), so as to reproduce an image of the object without the presence of its twin image. Hence, at the time of reconstructing a hologram, the virtual image component contained in the output signal of the photodetector can be removed, thereby improving the image quality of the reconstructed image.

    摘要翻译: 本发明的双图像消除装置包括:(a)用于发射扫描光束的扫描光源; (b)将来自扫描光源的扫描光束转换为球面波的干涉装置和具有彼此不同的时间频率的平面波,并将球面和平面波组合在一起; (c)用来自干涉装置的组合光束扫描物体的扫描仪; (d)用于检测来自物体的散射波的光检测器; (e)将所述光电检测器的输出信号转换为余弦编码的全息信息的第一乘法器; (f)将光电检测器的输出信号转换为正弦编码的全息信息的第二乘法器; 和(g)将第一和第二乘法器的输出信号转换为和信号的全息重建装置,其中这些输出信号以pi / 2 + 2n pi的相位差加在一起(其中n是不小于整数的整数) 比0),以便在没有其双重图像的情况下再现对象的图像。 因此,在重建全息图时,可以去除包含在光电检测器的输出信号中的虚拟图像分量,从而提高重建图像的图像质量。