摘要
在阿贝-波特实验中,用液晶光阀显示的图像作为光学4f系统的输入,发现在频谱面上有多重衍射光点,这说明液晶光阀的光栅结构参与成像.但在频谱面上不加滤波器的情况下,在输出面上光栅结构却消失了.该现象可利用液晶光阀的像素尺寸与人眼的可分辨本领来解释.
In the Abbe-Porter experiment, multiple diffraction patterns in the spectrum plane are found when an LCLV-displayed image is used as the input of an optical 4f system, which shows that the grating structure of the LCLV participated in the imaging process. But no grating structure is found in the image plane, even without any filter in the spectrum plane. In order to explain this phe- nomenon, we experimentally measure the dimension of the LCLV＇s pixels and compute the distinguishable distance of the human eye.
出处
《物理实验》
北大核心
2010年第7期44-46,共3页
Physics Experimentation
基金
上海市教育高地基金
教育部第四批高等学校特色专业点基金资助
关键词
液晶光阀
4f系统
阿贝-波特实验
像素
分辨本领
liquid crystal light valve （LCLV）
4f system
Abbe-Porter experiment
pixel
distinguishable distance
