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    • 6. 发明授权
    • Erasable thermo-optic storage display of a transmitted color image
    • 传输彩色图像的可擦除热光存储显示
    • US4150396A
    • 1979-04-17
    • US774044
    • 1977-03-03
    • Michel HarengSerge Le BerreErich Spitz
    • Michel HarengSerge Le BerreErich Spitz
    • G02F1/133H04N9/31G02F1/13H04N5/74
    • G02F1/132H04N9/3105
    • The invention provides an optical display device, utilizing a thermo-optical effect to inscribe a transmitted image in a layer of a material exhibiting a smectic state. Recording of the image with a full range of half tones without modulation of the recording beam and quick erasure of the recorded image without reheating of the film can be obtained by directly applying, simultaneously to the whole of the film either the video signal or an erasure voltage of suitable values. By associating this display device to a projection device utilizing a very bright source, the image thus recorded can be projected onto a large screen or a photosensitive substrate. The invention also describes a color images teleprojection and telereproduction device, in which three distinct chrominance images are recorded in a smectic layer as above described and simultaneously illuminated with white light; the three beams thus obtained are filtered for respectively selecting in each of them the spectral band corresponding to the chrominance of the image and superimposed in a single beam by a reflecting system. An objective lens supplied with a diaphragm in its image focal plane receives this single beam and projects the reconstituted colour image onto a screen or a photo-sensitive layer.
    • 本发明提供了一种光学显示装置,利用热光效应将透射图像记录在呈现近晶状态的材料层中。 可以通过直接将整个影片直接应用于视频信号或擦除画面来获得具有全频范围的半色调的图像,而不需要记录光束的调制和快速擦除记录的图像,而不会再次加热胶片 电压的适当值。 通过将该显示装置与使用非常明亮的光源的投影装置相关联,由此记录的图像可以投影到大屏幕或感光基板上。 本发明还描述了一种彩色图像远程投影和电视制作装置,其中三个不同的色度图像被记录在上述的近晶层中并同时用白光照亮; 对这样获得的三个波束进行滤波,以分别在其中选择与图像的色度对应的频谱带,并通过反射系统叠加在单个波束中。 在其图像焦平面中提供有光阑的物镜接收该单个光束并将重构的彩色图像投影到屏幕或光敏层上。