Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, USA.
Center for Drug Discovery, Design, and Delivery (CD4), Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, USA.
Nat Commun. 2017 Jul 11;8:15239. doi: 10.1038/ncomms15239.
Volumetric three-dimensional displays offer spatially accurate representations of images with a 360° view, but have been difficult to implement due to complex fabrication requirements. Herein, a chemically enabled volumetric 3D digital light photoactivatable dye display (3D Light PAD) is reported. The operating principle relies on photoactivatable dyes that become reversibly fluorescent upon illumination with ultraviolet light. Proper tuning of kinetics and emission wavelengths enables the generation of a spatial pattern of fluorescent emission at the intersection of two structured light beams. A first-generation 3D Light PAD was fabricated using the photoactivatable dye N-phenyl spirolactam rhodamine B, a commercial picoprojector, an ultraviolet projector and a custom quartz imaging chamber. The system displays a minimum voxel size of 0.68 mm, 200 μm resolution and good stability over repeated 'on-off' cycles. A range of high-resolution 3D images and animations can be projected, setting the foundation for widely accessible volumetric 3D displays.
体三维显示提供了具有 360°视角的图像的空间精确表示，但由于复杂的制造要求，一直难以实现。在此，报道了一种化学启用的体三维数字光光致变色染料显示（3D Light PAD）。其工作原理依赖于光致变色染料，它们在紫外光照射下会可逆地发荧光。适当调整动力学和发射波长，可以在两个结构光束的交点处产生荧光发射的空间图案。第一代 3D Light PAD 使用光致变色染料 N-苯基螺内酯罗丹明 B、商业皮秒投影仪、紫外投影仪和定制的石英成像室制造。该系统显示的最小体素尺寸为 0.68mm，分辨率为 200μm，在重复“开-关”循环时具有良好的稳定性。可以投射一系列高分辨率的 3D 图像和动画，为广泛应用的体三维显示奠定了基础。
