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1.发明公开PROJECTOR AND DISPLAY BOTH COMPRISING OPTICAL ELEMENT FOR DIFFRACTION AND SCATTERING 审中-公开投影仪和显示器都包含用于衍射和散射的光学元件
公开(公告)号：EP1070984A1
公开(公告)日：2001-01-24
申请号：EP00902041.3
申请日：2000-02-01
CPC分类号： G02B19/0028 , G02B19/0047 , G02B27/283 , G02B27/285 , G02B27/42 , G02B27/4244 , G02B27/425 , G02B27/4261 , G03B21/2073 , G03B21/208 , G03B21/625 , G03B33/12 , G03F7/70058 , H04N9/3117
摘要： The present invention provides, at a reasonable price, a lighting device for lighting up an object to be illuminated at uniform and high efficiency for light utilization, and a device for displaying images excellent in hue, visual recognition observability, brightness and uniformity. The present invention also provides, at a reasonable price, an excellent image display device or the like using such a lighting device as a light source.
Therefore, a diffractive optics is particularly used for condensing a bundle of light from a lamp, deflecting an image light or the like. In particular, scattering anisotropy due to the incident angle and the wavelength, change in the diffraction efficiency, change in the transmission characteristic or the like is utilized.
Moreover, an optical element such as Fresnel lens is also used together with the diffractive optics.摘要翻译： 本发明以合理的价格提供用于以均匀和高效率照明待照明物体以用于光利用的照明装置以及用于显示色调，视觉识别可观察性，亮度和均匀性优异的图像的装置。 本发明还以合理的价格提供使用这种照明装置作为光源的优良图像显示装置等。 因此，衍射光学器件特别用于聚集来自灯的一束光，偏转图像光等。 特别地，利用了由于入射角和波长引起的散射各向异性，衍射效率的变化，透射特性的变化等。 而且，诸如菲涅耳透镜的光学元件也与衍射光学元件一起使用。
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2.发明公开POLARIZED LIGHT ILLUMINATOR, IMAGE DISPLAY, PORTABLE INFORMATION TERMINAL, HEAD-UP DISPLAY, METHOD FOR PRODUCING DIFFRACTION OPTICAL DEVICE, METHOD FOR PRODUCING POLARIZED LIGHT ILLUMINATOR, AND METHOD FOR PRODUCING IMAGE DISPLAY 审中-公开偏光照明装置，图像显示，便携式数据终端，抬头显示器，方法光学衍射装置，方法有关View偏光照明装置及方法
公开(公告)号：EP1146379A1
公开(公告)日：2001-10-17
申请号：EP99973130.0
申请日：1999-11-29
IPC分类号： G02B27/28
CPC分类号： G02F1/13362 , G02B5/1809 , G02B5/1857 , G02B5/30 , G02B27/0103 , G02B27/1073 , G02B27/1086 , G02B27/145 , G02B27/149 , G02B27/283 , G02B27/285 , G02B2027/0112 , G02B2027/0118 , G02F1/133615 , G02F2201/305
摘要： An optical medium of liquid crystal mixed with a polymer precursor is arranged between a pair of glass substrates 1202, and heated to for example about 50 C to 70 C and exposed for about 5min by interference fringes using laser light of about 515nm wavelength from, for example, an Ar laser. When the exposure begins (first stage), the polymer precursor begins to cure, and, as shown in Fig. 10(a), polymer columns 1203 are formed in a periodic arrangement. When the exposure is continued (second stage) liquid crystal polymers that have accumulated in the dark portions align themselves macroscopically in a direction that is perpendicular with respect to the walls of the cured polymer columns 1203, as shown in Fig. 10(b). The obtained diffractive optical element has high polarization selectivity and diffraction efficiency, and using such a diffractive optical element, it is possible to devise polarized illumination systems and image display systems that can display bright images with high contrast.
摘要翻译： 与聚合物前体混合液晶的光学介质的一对玻璃基板1202的，并加热到例如约50℃至70℃之间设置，并通过使用从进行约515nm的波长的激光的干涉条纹曝光5分钟左右 实施例，其中Ar激光器。 当曝光开始（第一阶段），所述聚合物前体开始固化，并且，如在图10所示的（a）中，聚合物的列1203中的周期性排列形成。 当继续暴露（第二级）的液晶聚合物thathave累积在暗部赞同宏观的方向所做的是垂直于所述固化的聚合物列的壁1203中，如图10所示的（b）中。 将所得到的衍射光学元件具有高的偏振选择性和衍射效率，以及使用搜索一个衍射光学元件，所以能够设计出偏振光照明系统和图象显示系统也可以显示明亮的图像具有高对比度。
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公开(公告)号：EP1237138A1
公开(公告)日：2002-09-04
申请号：EP00961044.5
申请日：2000-09-18
CPC分类号： G02B6/0043 , G02B6/0061 , G09G5/10 , G09G2320/0276 , G09G2320/0285 , G09G2320/029 , G09G2320/043 , G09G2320/0626 , G09G2330/021 , G09G2360/144 , G09G2360/145 , H04N5/202 , H04N5/57 , H04N5/58 , H04N5/70
摘要： In a display device according to a first aspect of the invention, luminance is not made substantially uniform over the entire display screen but rather imparted a luminance gradient such that luminance substantially monotonously decreases from the center of the screen towards the peripheral portion using a luminance gradient forming means, whereby power consumption is reduced compared to cases in which the entire screen shows substantially uniform luminance. In a second aspect of the invention, by optimizing gray level characteristics and thereby improving a viewer's impression of brightness, luminance gradient is made even less perceivable without increasing power consumption. These configurations provide large screen, low power consumption display devices.
摘要翻译： 在根据本发明的第一方面的显示装置中，整个显示屏幕上的亮度不会基本上均匀，而是赋予亮度梯度，使得亮度从屏幕的中心朝向周边部分使用亮度梯度 形成装置，与整个屏幕显示基本上均匀的亮度的情况相比，功耗降低。 在本发明的第二方面中，通过优化灰度特性并由此改善观看者的亮度印象，在不增加功率消耗的情况下使亮度梯度变得更少可感知。 这些配置提供大屏幕，低功耗显示设备。
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