Takaki Yasuhiro, Matsumoto Yuji, Nakajima Tatsumi
Opt Express. 2015 Oct 19;23(21):26986-98. doi: 10.1364/OE.23.026986.
Horizontally scanning holography using a microelectromechanical system spatial light modulator (MEMS-SLM) can provide reconstructed images with an enlarged screen size and an increased viewing zone angle. Herein, we propose techniques to enable color image generation for a screen-scanning display system employing a single MEMS-SLM. Higher-order diffraction components generated by the MEMS-SLM for R, G, and B laser lights were coupled by providing proper illumination angles on the MEMS-SLM for each color. An error diffusion technique to binarize the hologram patterns was developed, in which the error diffusion directions were determined for each color. Color reconstructed images with a screen size of 6.2 in. and a viewing zone angle of 10.2° were generated at a frame rate of 30 Hz.
使用微机电系统空间光调制器（MEMS-SLM）的水平扫描全息术可以提供具有更大屏幕尺寸和更大观看视角的重建图像。在此，我们提出了一些技术，以实现采用单个MEMS-SLM的屏幕扫描显示系统的彩色图像生成。通过为每种颜色在MEMS-SLM上提供适当的照明角度，将MEMS-SLM为R、G和B激光产生的高阶衍射分量进行耦合。开发了一种用于对全息图图案进行二值化的误差扩散技术，其中为每种颜色确定了误差扩散方向。以30Hz的帧率生成了屏幕尺寸为6.2英寸、观看视角为10.2°的彩色重建图像。
