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1. 发明公开

EP1405134A2 VERFAHREN UND VORRICHTUNG ZUR INTENSITÄTSABHÄNGIGEN ABSCHWÄCHUNG VON LICHT 有权
标题翻译： VERFAHREN UND VORRICHTUNG ZURINTENSITÄTSABHÄNGIGENABSCHWÄCHUNGVON LICHT
公开(公告)号：EP1405134A2
公开(公告)日：2004-04-07
申请号：EP02742722.8
申请日：2002-05-08
申请人： Deutsche Telekom AG
发明人： DULTZ, Wolfgang , BERESNEV, Leonid , PATRUSHEVA, Galina
IPC分类号： G02F1/135
CPC分类号： G02B26/00 , G02B27/281
摘要： The invention relates to an intensity-dependent light modulating device, wherein said light successively passes through a polarizer, a first phase retardation plate and a first light modulator; the light then strikes a mirror and from there on, it passes once again through the light modulator and the phase retardation plate in the opposite direction and then strikes an analyzer that is crossed relative to the polarizer. The light modulator and the phase retardation plate are respectively located in an electric field in which the indicatrices of the light modulator and the phase retardation plate are deflected, wherein the deflection of the indicatrix of the light modulator is intensity-dependent. Due to the passage of light through the phase retardation plate and the light modulator, an intensity-dependent rotation of the direction of polarization occurs in such a way that higher intensity light is filtered in the analyzer while lower intensity light is transmitted. A preferred embodiment relates to a telescope, which is directed at an intensive light source in front of a dark background, said telescope only filtering the intensive light source while the background can be simultaneously observed during almost the entire transmission.
摘要翻译：本发明涉及一种强度依赖型光调制装置，其中所述光依次通过偏振器，第一相位延迟板和第一光调制器; 然后光线照射到一面镜子上，然后再通过光调制器和相位延迟板反向传播，然后撞击相对于偏振器相交的分析器。光调制器和相位延迟板分别位于电光场中，其中光调制器和相位延迟板的指示被偏转，其中光调制器的指示线的偏转取决于强度。由于光通过相位延迟板和光调制器，所以偏振方向的强度相关旋转以这样的方式发生，即在较低强度的光被传输的同时在分析仪中过滤较高强度的光。一个优选实施例涉及望远镜，该望远镜指向在黑暗背景前的强光源，所述望远镜仅对强光源进行过滤，而在几乎整个传输过程中可以同时观察背景。

2. 发明授权

EP1405134B1 VERFAHREN UND VORRICHTUNG ZUR INTENSITÄTSABHÄNGIGEN ABSCHWÄCHUNG VON LICHT 有权
标题翻译：方法和装置的光的强度相关衰减
公开(公告)号：EP1405134B1
公开(公告)日：2004-12-08
申请号：EP02742722.8
申请日：2002-05-08
申请人： Deutsche Telekom AG
发明人： DULTZ, Wolfgang , BERESNEV, Leonid , PATRUSHEVA, Galina
IPC分类号： G02F1/135
CPC分类号： G02B26/00 , G02B27/281
摘要： The invention relates to an intensity-dependent light modulating device, wherein said light successively passes through a polarizer, a first phase retardation plate and a first light modulator; the light then strikes a mirror and from there on, it passes once again through the light modulator and the phase retardation plate in the opposite direction and then strikes an analyzer that is crossed relative to the polarizer. The light modulator and the phase retardation plate are respectively located in an electric field in which the indicatrices of the light modulator and the phase retardation plate are deflected, wherein the deflection of the indicatrix of the light modulator is intensity-dependent. Due to the passage of light through the phase retardation plate and the light modulator, an intensity-dependent rotation of the direction of polarization occurs in such a way that higher intensity light is filtered in the analyzer while lower intensity light is transmitted. A preferred embodiment relates to a telescope, which is directed at an intensive light source in front of a dark background, said telescope only filtering the intensive light source while the background can be simultaneously observed during almost the entire transmission.

3. 发明授权

EP0998691B1 ANORDNUNG ZUR ELEKTRISCHEN STEUERUNG DER INTENSITÄT VON UNPOLARISIERTEM LICHT 失效
标题翻译：装置，用于非偏振光的强度的电气控制
公开(公告)号：EP0998691B1
公开(公告)日：2003-10-29
申请号：EP98947300.4
申请日：1998-07-15
申请人： Deutsche Telekom AG
发明人： DULTZ, Wolfgang , BERESNEV, Leonid , PATRUSHEVA, Galina , HAASE, Wolfgang
IPC分类号： G02F1/01
CPC分类号： G02F1/1326 , G02F1/141 , G02F1/31 , G02F2203/02
摘要： The invention relates to a device and method for electrically controlling the intensity of unpolarized light, wherein a polarising beam divider receives the light to be controlled via an entrance surface, so that said light is divided into two orthogonal polarised beams. A first device is provided to reflect at least one polarized luminous beam so that two luminous polarized beams can extend parallel to each other. At least one electro-optic element is arranged on the path of the luminous polarized beams. Said element modifies polarization according to the control voltage supplied. A second element reflecting the light beams in the opposite direction is also arranged so that the light beams pass though the electro-element(s) at least twice and are directed by the first reflecting device towards the polarised beam divider. The controlled light can be extracted from at least one entrance surface of the polarizing beam divider.

4. 发明公开

EP0998691A2 ANORDNUNG UND VERFAHREN ZUR ELEKTRISCHEN STEUERUNG DER INTENSITÄT VON UNPOLARISIERTEM LICHT 失效
标题翻译：安排和方法自然光的强度电气控制
公开(公告)号：EP0998691A2
公开(公告)日：2000-05-10
申请号：EP98947300.4
申请日：1998-07-15
申请人： Deutsche Telekom AG
发明人： DULTZ, Wolfgang , BERESNEV, Leonid , PATRUSHEVA, Galina , HAASE, Wolfgang
IPC分类号： G02F1/01
CPC分类号： G02F1/1326 , G02F1/141 , G02F1/31 , G02F2203/02
摘要： The invention relates to a device and method for electrically controlling the intensity of unpolarized light, wherein a polarising beam divider receives the light to be controlled via an entrance surface, so that said light is divided into two orthogonal polarised beams. A first device is provided to reflect at least one polarized luminous beam so that two luminous polarized beams can extend parallel to each other. At least one electro-optic element is arranged on the path of the luminous polarized beams. Said element modifies polarization according to the control voltage supplied. A second element reflecting the light beams in the opposite direction is also arranged so that the light beams pass though the electro-element(s) at least twice and are directed by the first reflecting device towards the polarised beam divider. The controlled light can be extracted from at least one entrance surface of the polarizing beam divider.

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