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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
Applicant: THOMSON CSF
Abstract: 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.
Abstract translation: 本发明涉及双衍射光学相关器。
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Patent Agency Ranking
公开(公告)号：US3787779A
公开(公告)日：1974-01-22
申请号：US3787779D
申请日：1972-04-14
Applicant: THOMSON CSF
Inventor： SPITZ E , OSTROWSKY D
CPC classification number: H01S3/1065 , G02F1/1313 , H01S3/022 , H01S3/06
Abstract: The present invention relates to stimulated emission radiation sources and, more precisely, to a dye laser in which the wavelength of the radiation emitted is varied by modifying the voltage applied to a thin film of a cholesteric liquid crystal which replaces one of the mirrors of the resonant optical cavity. This invention can be used as an adjustable wavelength coherent radiation source.
Abstract translation: 本发明涉及受激发射辐射源，更确切地说，涉及一种染料激光器，其中发射的辐射的波长通过改变施加到胆甾型液晶的薄膜上的电压而改变，该胆甾型液晶的薄膜替代了 共振光腔。 本发明可用作可调节波长相干辐射源。
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公开(公告)号：US3803408A
公开(公告)日：1974-04-09
申请号：US32335873
申请日：1973-01-15
Applicant: THOMSON CSF
Inventor： ASSOULINE G , LEIBA E , SPITZ E
CPC classification number: G02F1/135
Abstract: An image converter comprising, between two transparent electrodes connected to a d.c. supply source, a layer of nematic liquid crystal and a layer of photoconductive material located against each other. An image to be converted is projected onto the photoconductive layer and the liquid crystal layer is illuminated by an auxiliary light source.
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公开(公告)号：US3798452A
公开(公告)日：1974-03-19
申请号：US3798452D
申请日：1971-10-27
Applicant: THOMSON CSF
Inventor： SPITZ E , LEIBA E , ASSOULINE G
CPC classification number: G02F1/135
Abstract: A storage-type image converter of the photoconductor and liquid crystal kind comprises a photoconductive film arranged beside a film of a mixture of nematic-cholesteric liquid crystals; electrical bias means for successively applying to said films a direct write-in voltage and an alternating erase voltage, an auxiliary light source making it possible to recover the information stored, and stigmatic optical means being provided to project said information on to a viewing screen or on to a photographic substrate or carrier associated with a photocopier.
Abstract translation: 感光体和液晶种的存储型图像转换器包括布置在向列型胆甾型液晶的混合物的膜旁边的光电导膜; 电偏压装置，用于连续地向所述膜施加直接写入电压和交替擦除电压，辅助光源使得可以恢复所存储的信息，并提供固定的光学装置以将所述信息投影到观看屏幕或 到与复印机相关联的照相底物或载体上。
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公开(公告)号：US3842197A
公开(公告)日：1974-10-15
申请号：US22412172
申请日：1972-02-07
Applicant: THOMSON CSF
Inventor： BROUSSAUD G , SPITZ E
CPC classification number: G03H1/26 , G03H2270/22 , G03H2270/31 , G11B7/0065 , G11B7/08582 , G11B7/0908 , G11B7/12 , H04N5/7605 , H04N5/90
Abstract: A flexible disc is provided on at least one face of which an image is recorded along a spiral track in heliographic form. Under the action of a monochromatic light beam this image is obtained as a floating image. An arrangement is provided for playing back such discs. The invention is particularly applicable to television.
Abstract translation: 在至少一个面上设置有柔性盘，沿着该表面沿着螺旋轨道以日照形式记录图像。 在单色光束的作用下，获得该图像作为浮动图像。 提供了用于播放这种光盘的布置。 本发明特别适用于电视机。
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公开(公告)号：US3789318A
公开(公告)日：1974-01-29
申请号：US3789318D
申请日：1972-05-09
Applicant: THOMSON CSF
Inventor： OSTROWSKY D , SPITZ E
CPC classification number: H01S3/022 , H01S3/06 , H01S3/1065
Abstract: The invention relates to stimulated emission radiation source and more precisely to a dye laser in which the control of the emitted radiation wavelength is effected by varying the quality factor of the resonant cavity by means of a thin film of a nematic liquid crystal arranged between two polarisers, the double-refracting property of the film being controlled by a voltage applied through transparent electrodes.
Abstract translation: 本发明涉及受激发射辐射源，更准确地说涉及一种染料激光器，其中发射辐射波长的控制是通过利用布置在两个偏光镜之间的向列型液晶的薄膜来改变谐振腔的质量因子来实现的 ，膜的双折射性由通过透明电极施加的电压控制。
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