Thermally addressed electrically erased high‐resolution liquid‐crystal light valves
Thermally addressed electrically erased high‐resolution liquid‐crystal light valves
复制标题
热寻址电擦除高分辨率液晶光阀
DOI：
10.1063/1.1654426
复制
发表时间：
1972
影响因子：
4
通讯作者：
D. B. Fraser
中科院分区：
文献类型：
--
作者：
H. Melchior;F. Kahn;D. Maydan;D. B. Fraser
描述了用于在投影显示器中记录、存储和显示高分辨率图形图像的新型高透明液晶光阀。信息通过x-y偏转的强度调制红外激光束记录在这些光阀中，该激光束局部加热视觉透明的红外吸收电极。由此产生的临时加热的液晶产生光散射中心，保持存储，直到电擦除。分辨率为50线/mm，4×4-cm区域。对比度优于10：1。对于几mW的1.06-μm YAlG激光功率，寻址速度高于104像素/秒。
New highly transparent liquid‐crystal light valves for the recording, storage, and display of high‐resolution graphic images in projection displays are described. Information is recorded in these light valves by an x‐y deflected intensity‐modulated ir laser beam which locally heats visually transparent infrared absorbing electrodes. The resulting temporary heating of the cholesteric liquid crystal creates light‐scattering centers that remain stored until erased electrically. Resolution is 50 lines/mm over a 4×4‐cm area. Contrast is better than 10:1. Addressing speed is higher than 104 picture elements/sec for a few mW of 1.06‐μm YAlG laser power.