The application of twisted nematic liquid crystal in composition achromatic wave-plate
-
Corresponding author:
WU Fu-quan, fqwu@qfnu.edu.cn
;
-
Received Date:
2005-05-31
Accepted Date:
2005-06-17
-
Abstract
Based on Jones matrix,the property of twisted nematic liquid crystal(TNLC) is studied.It is found that TNLC modulated by voltage is equivalent to λ/2 wave-plate with proper thickness.Furthermore combination TNLC with two λ/4 wave-plate can be equivalent to achromatic λ/4 or λ/2 wave-plate wholly when the voltage is higher than liminal voltage,or it can be used as a common 90° rotationer when the voltage is removed.
-
-
References
[1]
|
WU Sh C,WU Q Sh.Bisector effect on the twisted-nematic cells[J].Information Display,1999(1):4~12(in Chinese). |
[2]
|
FAN Zh X.Liquid crystal apparatus technics basic[M].Beijing:Beijing University of Posts and Telecommunications Press,2000.74~77(in Chinese). |
[3]
|
WANG Q H,WU T X,ZHU X Y et al.Achromatic polarization switch using a film-compensated twisted nematic liquid crystal cell[J].Liquid Crystals,2004,31(4):535~539. |
[4]
|
WEI G H.Matrix optics[M].Beijing:Weapon Industry Press,1995.168~171(in Chinese). |
[5]
|
ZHU X Y,JING H,WANG Zh K et al.Threshold characteristics of homeotropic-twisted nematic liquid crystal display[J].Liquid Crystals and Displays,2001,16(2):97~103(in Chinese). |
[6]
|
YUN M J,LI G H,WANG M et al.Three-in-one composite achromatic λ/4 wave plate[J].Journal of Optoelectronics·Laser,2001,12(6):562~564(in Chinese). |
[7]
|
LI J Zh.Handbook of optics[M].Xi'an:Shanxi Science and Technology Press,1986.1300(in Chinese). |
-
-
Proportional views
-