The use of photochromic materials in volumetric three-dimensional (3D) displays can allow rich visual experiences by representing 3D content that occupies a real volume of physical space. We discovered that doping visible-light-activated azo-BF2 switches into polydimethylsiloxane (PDMS) polymers can result in volumetric beam-addressable canvases. The straightforward manipulation of the canvas with red and blue light illumination using digital light processing and/or heat (i.e., thermal back isomerization) generates tunable, reversible, and high-contrast and -resolution images. These properties were used in designing a rewritable, solid-state, and handheld volumetric 3D photochromic display that can be recursively used for showcasing static volumetric 3D images and dynamic 2D animations.

中文翻译：

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一种可光开关的手持式体积 3D 显示器


在体积三维 （3D） 显示器中使用光致变色材料可以通过表示占据真实物理空间体积的 3D 内容来实现丰富的视觉体验。我们发现，掺杂可见光激活的偶氮-BF2 转换到聚二甲基硅氧烷 （PDMS） 聚合物中可以产生体积光束可寻址画布。使用数字光处理和/或加热（即热反异构化）用红光和蓝光照明对画布进行直接操作，可以生成可调谐、可逆、高对比度和分辨率的图像。这些属性用于设计可重写、固态和手持式体积 3D 光致变色显示器，该显示器可以递归地用于展示静态体积 3D 图像和动态 2D 动画。