摘要
依据电压调谐多级液晶滤光片的设计原理，给出了设计实例。主要讨论了三片液晶盒组成的多级滤光片，在滤光片系统中液晶盒可以采用相同厚度，也可以使厚度成一定比例。厚度成比例的多级滤光片，其透射波长可通过调节外加电压而连续改变，调谐范围400-800nm，覆盖整个可见光区；采用相同厚度液晶盒组成的多级滤光片可以从多条谱线中滤出所需要的波长。原理上两种形式都可以获得性能良好的滤光片。
The theory on voltage-tunable multiple liquid crystal filters is discussed, and designing examples are given. The multiple filters composed of three single liquid crystal filters are mainly discussed. The three filters in the system may have the same thickness or proportional thickness, Both forms are effective. The filters having proportional thicknesses can change the transmitted wavelength by tuning the voltage, and the scope of the transmitted peak is 400-800 nm, covering the whole visible spectrum. The filters with the same thickness can be used to select certain desired wavelengths from multiline spectrum.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2006年第12期1835-1840,共6页
Acta Optica Sinica
关键词
光学器件
调谐滤光片
多级
液晶
optical device
tunable filter
multiple
liquid crystal
