Li Jin, Smithwick Quinn, Chu Daping
Opt Express. 2018 Jun 25;26(13):17459-17476. doi: 10.1364/OE.26.017459.
An efficient method to implement the coarse integral holographic (CIH) concept for dynamic CIH displays is to scan the information generated from a spatial light modulator (SLM) of a low space bandwidth product (SBP) but high bandwidth to form the hologram array for the integral optics. Previously, just over half of the SLMs bandwidth was utilized due to the fact that the galvanometer scanner in use could not tile all the holograms that the SLM is capable to produce, resulting in the loss of nearly half of the field of view (FOV). Here, we propose a full bandwidth dynamic CIH display using a large resonant scanner in conjunction with a hybrid raster scanner, which can utilize the full bandwidth of the spatial light modulator and double the horizontal FOV. Experimental results confirm that with the SLM and scanners as used, the FOV can reach 48° when the SLM reaches its full bandwidth. This approach can be used for future scalable and tileable CIH display systems.
一种用于动态计算全息（CIH）显示的实现粗积分全息（CIH）概念的有效方法是扫描由低空间带宽积（SBP）但高带宽的空间光调制器（SLM）生成的信息，以形成用于积分光学的全息图阵列。以前，由于所使用的振镜扫描仪无法平铺SLM能够产生的所有全息图，导致近一半的视场（FOV）损失，因此仅利用了SLM带宽的一半多一点。在此，我们提出一种使用大型共振扫描仪结合混合光栅扫描仪的全带宽动态CIH显示器，其可以利用空间光调制器的全带宽并将水平视场加倍。实验结果证实，使用所使用 的SLM和扫描仪，当SLM达到其全带宽时，视场可以达到48°。这种方法可用于未来可扩展和可平铺的CIH显示系统。
