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公开(公告)号：US3785736A
公开(公告)日：1974-01-15
申请号：US3785736D
申请日：1972-01-13
申请人： THOMSON CSF
摘要： The present invention relates to double-diffraction optical correlators. According to the invention there is provided a multi-channel optical correlator for shape recognition wherein the lenses and the filters are all constituted by patterns of fringes ; each channel is fed from a quasi-monochromatic and quasi-punctiform light source, which may be spatially incoherent.
摘要翻译： 本发明涉及双衍射光学相关器。
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2.发明授权Hologram formation within a polycrystalline photo excitable electro-optic plate 失效在多晶照片可激活电光板中形成的HOLOGRAM
公开(公告)号：US3847465A
公开(公告)日：1974-11-12
申请号：US30629172
申请日：1972-11-14
申请人： THOMSON CSF
发明人： MICHERON F , BISMUTH G , HERMASIN A , NICOLAS J , HILDEBRANDT M
CPC分类号： G03H1/02 , G02F1/0558 , G03H1/0248 , G03H2260/54
摘要： The present invention relates to holographic systems embodying a phase hologram pattern formed within the volume of a photoexcitable, electro-optic material. The system in accordance with the present invention comprises a pattern of fringes formed in a photo-excitable polycrystalline material of quasi-theoretical density. A biased state is created electrically or by mechanical stress, in the polycristalline material in order to permit the formation of an electronic density modulation condition capable of exploitation by electrooptical effect.
摘要翻译： 本发明涉及体现在可光致发光的电光材料的体积内形成的相位全息图图案的全息照相系统。
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公开(公告)号：US3782802A
公开(公告)日：1974-01-01
申请号：US3782802D
申请日：1972-09-13
申请人： THOMSON CSF
发明人： MICHERON F , BISMUTH G
CPC分类号： G02F1/0541 , G03H1/02 , G03H1/0248 , G03H2260/54 , Y10S359/90
摘要： The present invention relates to phase holography and more particularly to ferro-electric systems for bulk storage of phase holograms. The system in accordance with the invention comprises a photo excitable ferro-electric material having a hysteresis cycle at ambient temperature, wherein a electric field is created for at least partially reversing the remanent polarisation thereby fixing a fringe pattern photo induced within said ferroelectric material. The system can be used in optical bulk stores and for building up thick holographic lenses.
摘要翻译： 本发明涉及相位全息术，更具体地涉及用于相位全息图的大量存储的铁电系统。 根据本发明的系统包括在环境温度下具有滞后循环的可光致发光的铁电材料，其中产生电场以至少部分地反转剩余极化，从而固定在所述铁电材料内引起的条纹图案光 。 该系统可用于光学批量存储和建立厚度全息透镜。
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